{"count":87841,"next":"https://repo.scoap3.org/api/records/?page=2&q=authors.surname%3AStoica","previous":null,"hits":{"hits":[{"metadata":{"_files":[{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1007/JHEP10(2026)021/13130_2026_Article_30188.xml.scoap.xml","key":"13130_2026_Article_30188.xml.scoap","filetype":"xml"},{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1007/JHEP10(2026)021/13130_2026_Article_30188_a.pdf","key":"13130_2026_Article_30188_a","filetype":"pdf"}],"abstracts":[{"source":"Springer","value":"Soft de Sitter Effective Theory is a well-motivated candidate for the correct effective late-time description of equal-time correlation functions in de Sitter space. In this work, we study its application to theories that enjoy classical conformal invariance, using the conformally-coupled $\\textit{ϕ}$ -theory as a toy model. While quantum effects generate non-trivial late-time dynamics in such models, we argue that it is not described by the standard construction of the effective theory as discussed thus far in the literature. We show that the tree-level matching of the trispectrum onto the effective theory does not fit into the expected power-counting scheme, and we contrast it with the matching of the tree-level bispectrum in the conformally-coupled $\\textit{ϕ}$ -theory, where it works consistently. We then propose a prescription to identify the leading superhorizon degrees of freedom in such theories, which should serve as the starting point for the construction of their late-time effective description. The interpretation of logarithms of the form ln(−$\\textit{kη}$) in this context is briefly discussed."}],"arxiv_eprints":[{"categories":["hep-th","astro-ph.CO","hep-ph"],"value":["10.1007/JHEP10(2026)021","2607.06679"]}],"authors":[{"affiliations":[{"country":"Spain","organization":"Universidad de Granada","value":"Departamento de Física Teórica y del Cosmos, Universidad de Granada, Campus de Fuentenueva, Granada, E-18071, Spain"}],"email":null,"full_name":null,"given_names":"Maria","surname":"Fiore"},{"affiliations":[{"country":"Spain","organization":"Universidad de Granada","value":"Departamento de Física Teórica y del Cosmos, Universidad de Granada, Campus de Fuentenueva, Granada, E-18071, Spain"}],"email":null,"full_name":null,"given_names":"Andrea","surname":"Sanfilippo"}],"collections":[{"primary":"Journal of High Energy Physics"}],"control_number":111666,"copyright":[{"statement":"","holder":"The Author(s)","year":2026}],"dois":[{"value":"10.1007/JHEP10(2026)021"},{"value":"2607.06679"}],"imprints":[{"date":null,"publisher":"Springer"}],"license":[{"license":"CC-BY-4.0","url":"http://creativecommons.org/licenses/by/4.0/"}],"page_nr":[21],"publication_info":[{"artid":"JHEP10(2026)021","journal_issue":"10","journal_title":"Journal of High Energy Physics","journal_volume":"2026","page_end":"21","page_start":"1","year":"2026"}],"record_creation_date":"2026-10-02T18:55:55.674801","titles":[{"source":"Springer","title":"Classical conformal invariance and superhorizon dynamics in de Sitter"}]},"updated":"2026-10-02T18:56:01.345724+00:00","id":111666,"created":"2026-10-02T18:55:55.674801"},{"metadata":{"_files":[{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1007/JHEP10(2026)035/13130_2026_Article_30202.xml.scoap.xml","key":"13130_2026_Article_30202.xml.scoap","filetype":"xml"},{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1007/JHEP10(2026)035/13130_2026_Article_30202_a.pdf","key":"13130_2026_Article_30202_a","filetype":"pdf"}],"abstracts":[{"source":"Springer","value":"The dressed propagator of a ghost coupled to ordinary fields develops a pair of complex conjugate poles in the first Riemann sheet above the multi-particle threshold. We study the implications of this pole structure for the asymptotic field and its negative-norm one-particle state. Within the operator formalism of local quantum field theory, we show that certain quadratic couplings between the ghost field and the composite field of the multi-particle state persist at asymptotic times. These induce quantum interference effects that render the negative-norm one-particle state non-orthogonal to a superposition of positive-norm multi-particle states. Consequently, no free asymptotic one-particle ghost state exists, while the true free asymptotic states have zero norm and hence vanishing localization probability. The real and imaginary parts of the complex mass admit a clear physical interpretation; in particular, the inverse imaginary part sets the timescale for the onset of non-orthogonality. A freely propagating ghost is therefore confined to time intervals much shorter than its inverse width, so that a detector can never observe an isolated ghost particle asymptotically. Open questions and potential applications are discussed in the conclusions."}],"arxiv_eprints":[{"categories":["hep-th","gr-qc","quant-ph"],"value":["10.1007/JHEP10(2026)035","2605.29047"]}],"authors":[{"affiliations":[{"country":"Spain","organization":"Universidade de Santiago de Compostela","value":"Departamento de Física de Partículas, Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Galicia, 15705, Spain"}],"email":null,"full_name":null,"given_names":"Luca","surname":"Buoninfante"}],"collections":[{"primary":"Journal of High Energy Physics"}],"control_number":111667,"copyright":[{"statement":"","holder":"The Author(s)","year":2026}],"dois":[{"value":"10.1007/JHEP10(2026)035"},{"value":"2605.29047"}],"imprints":[{"date":null,"publisher":"Springer"}],"license":[{"license":"CC-BY-4.0","url":"http://creativecommons.org/licenses/by/4.0/"}],"page_nr":[29],"publication_info":[{"artid":"JHEP10(2026)035","journal_issue":"10","journal_title":"Journal of High Energy Physics","journal_volume":"2026","page_end":"29","page_start":"1","year":"2026"}],"record_creation_date":"2026-10-02T18:55:55.716660","titles":[{"source":"Springer","title":"Asymptotic quantum dynamics of ghost fields"}]},"updated":"2026-10-02T18:56:01.427733+00:00","id":111667,"created":"2026-10-02T18:55:55.716660"},{"metadata":{"_files":[{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1007/JHEP10(2026)038/13130_2026_Article_30205.xml.scoap.xml","key":"13130_2026_Article_30205.xml.scoap","filetype":"xml"},{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1007/JHEP10(2026)038/13130_2026_Article_30205_a.pdf","key":"13130_2026_Article_30205_a","filetype":"pdf"}],"abstracts":[{"source":"Springer","value":"We propose a novel mechanism for generating the baryon asymmetry of the Universe through leptogenesis in a scenario where the right-handed neutrinos are heavier than the maximal temperature of the Universe, and are never produced on-shell, neither by thermal nor by non-thermal mechanisms. We introduce a new scalar field, $\\textit{ϕ}$, lighter than the right-handed neutrinos, that couples to the latter via a Yukawa coupling, so that it decays into two lepton doublets and two higgs doublets via off-shell right-handed neutrinos. Then, we derive the CP asymmetry arising from the interference between tree-level and loop diagrams in the four-body decay, and we show that the generated baryon asymmetry can reproduce the observed value both in a scenario where $\\textit{ϕ}$ is responsible for the reheating of the Universe, and in a scenario where $\\textit{ϕ}$ is a generic scalar that remains in thermal equilibrium with the plasma."}],"arxiv_eprints":[{"categories":["hep-ph","astro-ph.CO"],"value":["10.1007/JHEP10(2026)038","2605.24163"]}],"authors":[{"affiliations":[{"country":"Germany","organization":"TUM School of Natural Sciences, Technical University of Munich","value":"Department of Physics, TUM School of Natural Sciences, Technical University of Munich, James-Franck-Str. 1, Garching, 85748, Germany"}],"email":null,"full_name":null,"given_names":"Simon","surname":"Cléry"},{"affiliations":[{"country":"Germany","organization":"TUM School of Natural Sciences, Technical University of Munich","value":"Department of Physics, TUM School of Natural Sciences, Technical University of Munich, James-Franck-Str. 1, Garching, 85748, Germany"}],"email":null,"full_name":null,"given_names":"Alejandro","surname":"Ibarra"},{"affiliations":[{"country":"Germany","organization":"TUM School of Natural Sciences, Technical University of Munich","value":"Department of Physics, TUM School of Natural Sciences, Technical University of Munich, James-Franck-Str. 1, Garching, 85748, Germany"}],"email":null,"full_name":null,"given_names":"Onur","surname":"Yonar"}],"collections":[{"primary":"Journal of High Energy Physics"}],"control_number":111668,"copyright":[{"statement":"","holder":"The Author(s)","year":2026}],"dois":[{"value":"10.1007/JHEP10(2026)038"},{"value":"2605.24163"}],"imprints":[{"date":null,"publisher":"Springer"}],"license":[{"license":"CC-BY-4.0","url":"http://creativecommons.org/licenses/by/4.0/"}],"page_nr":[18],"publication_info":[{"artid":"JHEP10(2026)038","journal_issue":"10","journal_title":"Journal of High Energy Physics","journal_volume":"2026","page_end":"18","page_start":"1","year":"2026"}],"record_creation_date":"2026-10-02T18:55:55.739015","titles":[{"source":"Springer","title":"Leptogenesis without on-shell right-handed neutrinos"}]},"updated":"2026-10-02T18:56:01.750279+00:00","id":111668,"created":"2026-10-02T18:55:55.739015"},{"metadata":{"_files":[{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1007/JHEP10(2026)030/13130_2026_Article_30197.xml.scoap.xml","key":"13130_2026_Article_30197.xml.scoap","filetype":"xml"},{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1007/JHEP10(2026)030/13130_2026_Article_30197_a.pdf","key":"13130_2026_Article_30197_a","filetype":"pdf"}],"abstracts":[{"source":"Springer","value":"We extend the hidden zeros and 2-split of tree-level Tr($\\textit{ϕ}$ ) amplitudes to loop-level Feynman integrands, apart from some physically irrelevant scaleless integrals. Our method is based on a certain factorization mechanism that occurs in Feynman diagrams when summing over shuffle permutations. The loop-level hidden zeros and 2-split identified in this work differ from those in the literature. In our result, the kinematic conditions for loop-level hidden zeros and 2-split are remarkably simple. Their connection is as tight as at tree-level, with the same procedure for obtaining the 2-split condition from the zero condition. The resulting 2-split formula at loop-level represents a generalization of that at tree-level: the $\\textit{L}$-loop integrand is expressed as a sum over $\\textit{L}$ + 1 terms, each of which exhibits a 2-split structure."}],"arxiv_eprints":[{"categories":["hep-th"],"value":["10.1007/JHEP10(2026)030","2604.13810"]}],"authors":[{"affiliations":[{"country":"China","organization":"College of Physical Science and Technology, Yangzhou University","value":"Center for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou University, No.180, Siwangting Road, Yangzhou, 225009, P.R. China"}],"email":null,"full_name":null,"given_names":"Kang","surname":"Zhou"}],"collections":[{"primary":"Journal of High Energy Physics"}],"control_number":111671,"copyright":[{"statement":"","holder":"The Author(s)","year":2026}],"dois":[{"value":"10.1007/JHEP10(2026)030"},{"value":"2604.13810"}],"imprints":[{"date":null,"publisher":"Springer"}],"license":[{"license":"CC-BY-4.0","url":"http://creativecommons.org/licenses/by/4.0/"}],"page_nr":[34],"publication_info":[{"artid":"JHEP10(2026)030","journal_issue":"10","journal_title":"Journal of High Energy Physics","journal_volume":"2026","page_end":"34","page_start":"1","year":"2026"}],"record_creation_date":"2026-10-02T18:55:55.888908","titles":[{"source":"Springer","title":"Towards new hidden zero and 2-split of loop-level Feynman yntegrands in Tr($\\textit{ϕ}$ 3) model"}]},"updated":"2026-10-02T18:56:02.329042+00:00","id":111671,"created":"2026-10-02T18:55:55.888908"},{"metadata":{"_files":[{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1007/JHEP10(2026)040/13130_2026_Article_30207.xml.scoap.xml","key":"13130_2026_Article_30207.xml.scoap","filetype":"xml"},{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1007/JHEP10(2026)040/13130_2026_Article_30207_a.pdf","key":"13130_2026_Article_30207_a","filetype":"pdf"}],"abstracts":[{"source":"Springer","value":"We study the cosmological implications of the minimal non-linear realisation of scale invariance within the Standard Model (SM). This framework provides a technically natural explanation for the hierarchy between the Planck scale and the electroweak scale and introduces only a light, feebly coupled dilaton field beyond the SM particles. Although the model is almost indistinguishable from the minimal SM at low energies, its cosmological consequences differ dramatically. In particular, the electroweak Higgs field remains trapped in the symmetric phase until the Universe cools to very low temperatures, $$ {T}_c^{\\left(\\chi \\right)} $$ ~ 28 MeV, where the first-order QCD chiral symmetry-breaking phase transition triggers the electroweak phase transition. This scenario offers intriguing possibilities for the production of primordial black holes, low-frequency gravitational waves, and multi-quark and lepton nuggets, which we explore in some detail using simplified approximations."}],"arxiv_eprints":[{"categories":["hep-ph","astro-ph.CO","hep-th"],"value":["10.1007/JHEP10(2026)040","2603.18406"]}],"authors":[{"affiliations":[{"country":"Australia","organization":"School of Physics, The University of Sydney","value":"Sydney Consortium for Particle Physics and Cosmology, School of Physics, The University of Sydney, Physics Rd A28, Sydney, NSW, 2006, Australia"}],"email":null,"full_name":null,"given_names":"Joshua","surname":"Cesca"},{"affiliations":[{"country":"Australia","organization":"School of Physics, The University of Sydney","value":"Sydney Consortium for Particle Physics and Cosmology, School of Physics, The University of Sydney, Physics Rd A28, Sydney, NSW, 2006, Australia"}],"email":null,"full_name":null,"given_names":"Archil","surname":"Kobakhidze"}],"collections":[{"primary":"Journal of High Energy Physics"}],"control_number":111672,"copyright":[{"statement":"","holder":"The Author(s)","year":2026}],"dois":[{"value":"10.1007/JHEP10(2026)040"},{"value":"2603.18406"}],"imprints":[{"date":null,"publisher":"Springer"}],"license":[{"license":"CC-BY-4.0","url":"http://creativecommons.org/licenses/by/4.0/"}],"page_nr":[36],"publication_info":[{"artid":"JHEP10(2026)040","journal_issue":"10","journal_title":"Journal of High Energy Physics","journal_volume":"2026","page_end":"36","page_start":"1","year":"2026"}],"record_creation_date":"2026-10-02T18:55:55.689767","titles":[{"source":"Springer","title":"QCD and electroweak phase transitions with hidden scale invariance: implications for primordial black holes, quark-lepton nuggets and gravitational waves"}]},"updated":"2026-10-02T18:56:02.382839+00:00","id":111672,"created":"2026-10-02T18:55:55.689767"},{"metadata":{"_files":[{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1103/76bd-86sg/76bd-86sg.pdf","key":"76bd-86sg","filetype":"pdf"},{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1103/76bd-86sg/76bd-86sg.xml","key":"76bd-86sg","filetype":"xml"}],"abstracts":[{"source":"APS","value":"<p>Neutrino mixing parameters are measured exclusively below 1 TeV. We show, for the first time, how to translate the flavor composition of TeV-PeV astrophysical neutrinos into direct constraints on the standard mixing parameters, placing the high-energy regime on the same quantitative footing as sub-TeV global fits. Present 11.4-year IceCube Medium-Energy Starting Events data leave these parameters unconstrained, limited by flavor-measurement uncertainties, and an irreducible degeneracy between <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msub><mi>θ</mi><mn>12</mn></msub></math> and the unknown astrophysical neutrino production mechanism. However, upcoming multitelescope observations will resolve <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msub><mi>θ</mi><mn>23</mn></msub></math> and <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msub><mi>θ</mi><mn>13</mn></msub></math> with 17%–50% precision. While coarser than terrestrial precision, this marks the transition of TeV-PeV neutrinos from a qualitative consistency check to a genuine measurement of three-flavor mixing. Finally, we establish concrete benchmarks for detecting beyond-Standard-Model effects, providing a roadmap to probe new physics that grows with energy and remains invisible to terrestrial neutrino experiments.</p>"}],"arxiv_eprints":[{"categories":["hep-ph","astro-ph.HE","hep-ex"],"value":["10.1103/76bd-86sg","2602.14308"]}],"authors":[{"affiliations":[{"country":"Denmark","organization":"Niels Bohr International Academy, Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark","value":"Niels Bohr International Academy, <a href=\"https://ror.org/035b05819\">Niels Bohr Institute</a>, <a href=\"https://ror.org/035b05819\">University of Copenhagen</a>, 2100 Copenhagen, Denmark"}],"email":null,"full_name":null,"given_names":"Mauricio","surname":"Bustamante"},{"affiliations":[{"country":"Canada","organization":"Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5, Canada","value":"<a href=\"https://ror.org/013m0ej23\">Perimeter Institute for Theoretical Physics</a>, Waterloo, Ontario N2L 2Y5, Canada"},{"country":"Canada","organization":"Department of Physics, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada","value":"Department of Physics, <a href=\"https://ror.org/0213rcc28\">Simon Fraser University</a>, Burnaby, British Columbia V5A 1S6, Canada"},{"country":"Canada","organization":"Department of Physics, Engineering Physics and Astronomy, Queen’s University, Kingston, Ontario K7L 3N6, Canada","value":"Department of Physics, Engineering Physics and Astronomy, <a href=\"https://ror.org/02y72wh86\">Queen’s University</a>, Kingston, Ontario K7L 3N6, Canada"},{"country":"Canada","organization":"Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Kingston, Ontario K7L 3N6, Canada","value":"<a href=\"https://ror.org/013q1e562\">Arthur B. McDonald Canadian Astroparticle Physics Research Institute</a>, Kingston, Ontario K7L 3N6, Canada"}],"email":null,"full_name":null,"given_names":"Qinrui","surname":"Liu"},{"affiliations":[{"country":"Spain","organization":"Departament de Física Teórica and IFIC, Universitat de València-CSIC, E-46100, Burjassot, Spain","value":"Departament de Física Teórica and <a href=\"https://ror.org/017xch102\">IFIC</a>, <a href=\"https://ror.org/043nxc105\">Universitat de València-CSIC</a>, E-46100, Burjassot, Spain"}],"email":null,"full_name":null,"given_names":"Gabriela","surname":"Barenboim"}],"collections":[{"primary":"Physical Review D"}],"control_number":111655,"copyright":[{"statement":"Published by the American Physical Society","holder":"","year":2026}],"dois":[{"value":"10.1103/76bd-86sg"},{"value":"2602.14308"}],"imprints":[{"date":null,"publisher":"APS"}],"license":[{"license":"CC-BY-4.0","url":"http://creativecommons.org/licenses/by/4.0/"}],"page_nr":[],"publication_info":[{"artid":"","journal_issue":"8","journal_title":"Physical Review D","journal_volume":"114","page_end":"","page_start":"","year":"2026"}],"record_creation_date":"2026-10-02T18:00:19.639300+00:00","titles":[{"source":"APS","title":"Measuring neutrino mixing above 1 TeV with astrophysical neutrinos"}]},"updated":"2026-10-03T00:00:39.643155+00:00","id":111655,"created":"2026-10-02T18:00:19.639300+00:00"},{"metadata":{"_files":[{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1103/fgdl-7lb7/fgdl-7lb7.pdf","key":"fgdl-7lb7","filetype":"pdf"},{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1103/fgdl-7lb7/fgdl-7lb7.xml","key":"fgdl-7lb7","filetype":"xml"}],"abstracts":[{"source":"APS","value":"<p>The discovery of the hidden-charm pentaquarks <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mrow><msub><mrow><mi>P</mi></mrow><mrow><mi>c</mi></mrow></msub><mo stretchy=\"false\">(</mo><mn>4312</mn><mo stretchy=\"false\">)</mo></mrow></math>, <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msub><mi>P</mi><mi>c</mi></msub><mo stretchy=\"false\">(</mo><mn>4440</mn><mo stretchy=\"false\">)</mo></math>, and <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msub><mi>P</mi><mi>c</mi></msub><mo stretchy=\"false\">(</mo><mn>4457</mn><mo stretchy=\"false\">)</mo></math> by the LHCb Collaboration are very likely to identify as the <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msubsup><mi mathvariant=\"normal\">Σ</mi><mi>c</mi><mrow><mo stretchy=\"false\">(</mo><mo>*</mo><mo stretchy=\"false\">)</mo></mrow></msubsup><msup><mover accent=\"true\"><mi>D</mi><mo stretchy=\"false\">¯</mo></mover><mrow><mo stretchy=\"false\">(</mo><mo>*</mo><mo stretchy=\"false\">)</mo></mrow></msup></math> molecules. A natural and crucial extension is the existence of excited molecular partners built from a ground-state charmed baryon and a radially excited anticharmed meson, namely <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msubsup><mi mathvariant=\"normal\">Σ</mi><mi>c</mi><mrow><mo stretchy=\"false\">(</mo><mo>*</mo><mo stretchy=\"false\">)</mo></mrow></msubsup><msup><mover accent=\"true\"><mi>D</mi><mo stretchy=\"false\">¯</mo></mover><mrow><mo stretchy=\"false\">(</mo><mo>*</mo><mo stretchy=\"false\">)</mo></mrow></msup><mo stretchy=\"false\">(</mo><mn>2</mn><mi>S</mi><mo stretchy=\"false\">)</mo></math> molecules. In a framework of the chiral quark model, we systematically study pion-emission decays of such excited molecules into the known ground-state <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msub><mi>P</mi><mi>c</mi></msub></math> molecules. Our results show that the decay widths are sensitive to the spin structures and the coupled-channel interferences, i.e., the <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msub><mi mathvariant=\"normal\">Σ</mi><mi>c</mi></msub><mover accent=\"true\"><mi>D</mi><mo stretchy=\"false\">¯</mo></mover><mo stretchy=\"false\">(</mo><mn>2</mn><mi>S</mi><mo stretchy=\"false\">)</mo><mo>/</mo><msub><mi mathvariant=\"normal\">Σ</mi><mi>c</mi></msub><msup><mover accent=\"true\"><mi>D</mi><mo stretchy=\"false\">¯</mo></mover><mo>*</mo></msup><mo stretchy=\"false\">(</mo><mn>2</mn><mi>S</mi><mo stretchy=\"false\">)</mo><mo>/</mo><msubsup><mi mathvariant=\"normal\">Σ</mi><mi>c</mi><mo>*</mo></msubsup><msup><mover accent=\"true\"><mi>D</mi><mo stretchy=\"false\">¯</mo></mover><mo>*</mo></msup><mo stretchy=\"false\">(</mo><mn>2</mn><mi>S</mi><mo stretchy=\"false\">)</mo><mo stretchy=\"false\">[</mo><mn>1</mn><mo>/</mo><mn>2</mn><mo stretchy=\"false\">(</mo><mn>1</mn><mo>/</mo><msup><mn>2</mn><mo>−</mo></msup><mo stretchy=\"false\">)</mo><mo stretchy=\"false\">]</mo></math> state decays to <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msub><mi>P</mi><mi>c</mi></msub><mo stretchy=\"false\">(</mo><mn>4440</mn><mo stretchy=\"false\">)</mo></math> with a width of several MeV, while the width to <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msub><mi>P</mi><mi>c</mi></msub><mo stretchy=\"false\">(</mo><mn>4457</mn><mo stretchy=\"false\">)</mo></math> is suppressed below 0.3 MeV due to destructive interference. The pion-emission decay can be the key to unveiling the excited molecular spectrum of hidden-charm pentaquarks and provides decisive experimental signatures. We expect that future experiments such as the LHCb and PANDA can verify our predictions.</p>"}],"arxiv_eprints":[{"categories":["hep-ph"],"value":["10.1103/fgdl-7lb7","2606.15619"]}],"authors":[{"affiliations":[{"country":"China","organization":"Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha 410081, China","value":"Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, <a href=\"https://ror.org/053w1zy07\">Hunan Normal University</a>, Changsha 410081, China"}],"email":null,"full_name":null,"given_names":"Yu-Jie","surname":"Tang"},{"affiliations":[{"country":"China","organization":"Hunan Research Center of the Basic Discipline for Quantum Effects and Quantum Technologies, Hunan Normal University, Changsha 410081, China","value":"Hunan Research Center of the Basic Discipline for Quantum Effects and Quantum Technologies, <a href=\"https://ror.org/053w1zy07\">Hunan Normal University</a>, Changsha 410081, China"},{"country":"China","organization":"Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha 410081, China","value":"Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, <a href=\"https://ror.org/053w1zy07\">Hunan Normal University</a>, Changsha 410081, China"}],"email":null,"full_name":null,"given_names":"Wen-Yan","surname":"Peng"},{"affiliations":[{"country":"China","organization":"Hunan Research Center of the Basic Discipline for Quantum Effects and Quantum Technologies, Hunan Normal University, Changsha 410081, China","value":"Hunan Research Center of the Basic Discipline for Quantum Effects and Quantum Technologies, <a href=\"https://ror.org/053w1zy07\">Hunan Normal University</a>, Changsha 410081, China"},{"country":"China","organization":"Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha 410081, China","value":"Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, <a href=\"https://ror.org/053w1zy07\">Hunan Normal University</a>, Changsha 410081, China"}],"email":null,"full_name":null,"given_names":"Rui","surname":"Chen"},{"affiliations":[{"country":"China","organization":"School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China","value":"School of Physical Science and Technology, <a href=\"https://ror.org/01mkqqe32\">Lanzhou University</a>, Lanzhou 730000, China"}],"email":null,"full_name":null,"given_names":"Fu-Lai","surname":"Wang"}],"collections":[{"primary":"Physical Review D"}],"control_number":111658,"copyright":[{"statement":"Published by the American Physical Society","holder":"","year":2026}],"dois":[{"value":"10.1103/fgdl-7lb7"},{"value":"2606.15619"}],"imprints":[{"date":null,"publisher":"APS"}],"license":[{"license":"CC-BY-4.0","url":"http://creativecommons.org/licenses/by/4.0/"}],"page_nr":[],"publication_info":[{"artid":"","journal_issue":"7","journal_title":"Physical Review D","journal_volume":"114","page_end":"","page_start":"","year":"2026"}],"record_creation_date":"2026-10-02T18:00:19.443394+00:00","titles":[{"source":"APS","title":"Pion radiative decays of excited hidden-charm pentaquark molecules: From <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msubsup><mi mathvariant=\"normal\">Σ</mi><mi>c</mi><mrow><mo stretchy=\"false\">(</mo><mo>*</mo><mo stretchy=\"false\">)</mo></mrow></msubsup><msup><mover accent=\"true\"><mi>D</mi><mo stretchy=\"false\">¯</mo></mover><mrow><mo stretchy=\"false\">(</mo><mo>*</mo><mo stretchy=\"false\">)</mo></mrow></msup><mo stretchy=\"false\">(</mo><mn>2</mn><mi>S</mi><mo stretchy=\"false\">)</mo></math> molecules to the reported <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msub><mi>P</mi><mi>c</mi></msub></math> states"}]},"updated":"2026-10-03T00:00:39.856852+00:00","id":111658,"created":"2026-10-02T18:00:19.443394+00:00"},{"metadata":{"_files":[{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1103/9pv5-qcfv/9pv5-qcfv.pdf","key":"9pv5-qcfv","filetype":"pdf"},{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1103/9pv5-qcfv/9pv5-qcfv.xml","key":"9pv5-qcfv","filetype":"xml"}],"abstracts":[{"source":"APS","value":"<p>Extensions of the Standard Model featuring both an enlarged scalar sector and vector-like fermions arise naturally in a wide class of well-motivated theoretical frameworks. In such scenarios, vectorlike quarks (VLQs) can exhibit nonstandard decay modes involving additional Higgs states, giving rise to distinctive collider signatures that remain largely unexplored by existing experimental searches. We investigate the prospects of probing this possibility at the high-luminosity Large Hadron Collider (HL-LHC) through the decay of vector-like top partner (<math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mi>T</mi></math>) to charged Higgs (<math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msup><mi>H</mi><mo>±</mo></msup></math>) followed by the decay, <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msup><mi>H</mi><mo>±</mo></msup><mo stretchy=\"false\">→</mo><mi>τ</mi><mi>ν</mi></math>, producing a final state containing two tau leptons, two <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mi>b</mi></math> jets, and missing transverse energy. A model-independent collider analysis is performed using global kinematic observables constructed from visible objects and the missing transverse momentum vector to suppress the dominant backgrounds. Polarization-sensitive observables built from the hadronic <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mi>τ</mi></math> decay products are also examined as complementary probes of the spin-0 origin of the <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mi>τ</mi></math> leptons. The expected discovery sensitivity is evaluated using the Asimov significance for an integrated luminosity of <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mn>3</mn><mtext> </mtext><mtext> </mtext><msup><mi>ab</mi><mrow><mo>−</mo><mn>1</mn></mrow></msup></math> at <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msqrt><mi>s</mi></msqrt><mo>=</mo><mn>14</mn><mtext> </mtext><mtext> </mtext><mi>TeV</mi></math>. Our results demonstrate that the <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mn>2</mn><mi>τ</mi><mo>+</mo><mn>2</mn><mi>b</mi><mo>+</mo><msub><menclose notation=\"updiagonalstrike\" other=\"updiag1\"><mi>E</mi></menclose><mi>T</mi></msub></math> (where <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msub><menclose notation=\"updiagonalstrike\" other=\"updiag1\"><mi>E</mi></menclose><mi>T</mi></msub></math> is the missing transverse energy) channel provides a promising and largely orthogonal avenue to search for non-standard VLQ decays in extended Higgs sectors, with discovery-level sensitivity achievable for VLQ masses up to approximately 1.9 TeV.</p>"}],"arxiv_eprints":[{"categories":["hep-ph","hep-ex"],"value":["10.1103/9pv5-qcfv","2606.20054"]}],"authors":[{"affiliations":[{"country":"India","organization":"Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695 551, India","value":"<a href=\"https://ror.org/01pe3t004\">Indian Institute of Science Education and Research Thiruvananthapuram</a>, Vithura, Kerala 695 551, India"}],"email":null,"full_name":null,"given_names":"Tanumoy","surname":"Mandal"},{"affiliations":[{"country":"United Kingdom","organization":"School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, United Kingdom","value":"School of Physics and Astronomy, <a href=\"https://ror.org/01ryk1543\">University of Southampton</a>, Southampton SO17 1BJ, United Kingdom"},{"country":"Sweden","organization":"Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20 Uppsala, Sweden","value":"Department of Physics and Astronomy, <a href=\"https://ror.org/048a87296\">Uppsala University</a>, Box 516, SE-751 20 Uppsala, Sweden"}],"email":null,"full_name":null,"given_names":"Stefano","surname":"Moretti"},{"affiliations":[{"country":"India","organization":"Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695 551, India","value":"<a href=\"https://ror.org/01pe3t004\">Indian Institute of Science Education and Research Thiruvananthapuram</a>, Vithura, Kerala 695 551, India"}],"email":null,"full_name":null,"given_names":"Rachit","surname":"Sharma"}],"collections":[{"primary":"Physical Review D"}],"control_number":111660,"copyright":[{"statement":"Published by the American Physical Society","holder":"","year":2026}],"dois":[{"value":"10.1103/9pv5-qcfv"},{"value":"2606.20054"}],"imprints":[{"date":null,"publisher":"APS"}],"license":[{"license":"CC-BY-4.0","url":"http://creativecommons.org/licenses/by/4.0/"}],"page_nr":[],"publication_info":[{"artid":"","journal_issue":"7","journal_title":"Physical Review D","journal_volume":"114","page_end":"","page_start":"","year":"2026"}],"record_creation_date":"2026-10-02T18:00:19.338039+00:00","titles":[{"source":"APS","title":"Nonstandard decays of vectorlike top partners in a two-Higgs-doublet model at the HL-LHC"}]},"updated":"2026-10-03T00:00:38.599775+00:00","id":111660,"created":"2026-10-02T18:00:19.338039+00:00"},{"metadata":{"_files":[{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1103/47cq-vdfk/47cq-vdfk.pdf","key":"47cq-vdfk","filetype":"pdf"},{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1103/47cq-vdfk/47cq-vdfk.xml","key":"47cq-vdfk","filetype":"xml"}],"abstracts":[{"source":"APS","value":"<p>We study the exclusive production of dileptons in proton-proton collisions as a probe of the proton charge-radius scale. Using a dipole form factor model, we compare the conventional choice of <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mrow><msup><mrow><mi mathvariant=\"normal\">Λ</mi></mrow><mrow><mn>2</mn></mrow></msup><mo>=</mo><mn>0.71</mn><mtext> </mtext><mtext> </mtext><msup><mrow><mi>GeV</mi></mrow><mrow><mn>2</mn></mrow></msup></mrow></math> with Particle Data Group test scenarios corresponding to <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msub><mi>r</mi><mi>p</mi></msub><mo>=</mo><mn>0.8751</mn><mo>±</mo><mn>0.0061</mn><mtext> </mtext><mtext> </mtext><mi>fm</mi></math> and <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msub><mi>r</mi><mi>p</mi></msub><mo>=</mo><mn>0.84087</mn><mo>±</mo><mn>0.00039</mn><mtext> </mtext><mtext> </mtext><mi>fm</mi></math>, representative of the historical large radius from CODATA and smaller radius from muonic-hydrogen determinations, respectively. The sensitivity is greatest at large dilepton invariant masses and forward/backward rapidity. Fitting to the current ATLAS and CMS data within the adopted model gives <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msup><mi mathvariant=\"normal\">Λ</mi><mn>2</mn></msup><mo>=</mo><mn>0.465</mn><mo>±</mo><mn>0.056</mn><mtext> </mtext><mtext> </mtext><msup><mi>GeV</mi><mn>2</mn></msup></math>, corresponding to an effective radius <math xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><msub><mi>r</mi><mi>p</mi></msub><mo>=</mo><mn>1.002</mn><mo>±</mo><mn>0.038</mn><mtext> </mtext><mtext> </mtext><mi>fm</mi></math>, which indicates nontrivial sensitivity on the proton-radius scale, but is not yet a definitive solution to the proton-radius puzzle. While this result depends on the theoretical model used in the calculation, it shows that exclusive dilepton production at the LHC can provide complementary model-dependent information on the proton electromagnetic form factor.</p>"}],"arxiv_eprints":[{"categories":["hep-ph"],"value":["10.1103/47cq-vdfk","2606.19604"]}],"authors":[{"affiliations":[{"country":"Poland","organization":"Institute of Nuclear Physics Polish Academy of Sciences, Radzikowskiego 152, PL-31-342 Kraków, Poland","value":"<a href=\"https://ror.org/01n78t774\">Institute of Nuclear Physics Polish Academy of Sciences</a>, Radzikowskiego 152, PL-31-342 Kraków, Poland"}],"email":null,"full_name":null,"given_names":"Nikhil","surname":"Krishna"},{"affiliations":[{"country":"Poland","organization":"Institute of Nuclear Physics Polish Academy of Sciences, Radzikowskiego 152, PL-31-342 Kraków, Poland","value":"<a href=\"https://ror.org/01n78t774\">Institute of Nuclear Physics Polish Academy of Sciences</a>, Radzikowskiego 152, PL-31-342 Kraków, Poland"}],"email":null,"full_name":null,"given_names":"Mariola","surname":"Kłusek-Gawenda"},{"affiliations":[{"country":"Poland","organization":"Institute of Nuclear Physics Polish Academy of Sciences, Radzikowskiego 152, PL-31-342 Kraków, Poland","value":"<a href=\"https://ror.org/01n78t774\">Institute of Nuclear Physics Polish Academy of Sciences</a>, Radzikowskiego 152, PL-31-342 Kraków, Poland"}],"email":null,"full_name":null,"given_names":"Rafał","surname":"Staszewski"}],"collections":[{"primary":"Physical Review D"}],"control_number":111659,"copyright":[{"statement":"Published by the American Physical Society","holder":"","year":2026}],"dois":[{"value":"10.1103/47cq-vdfk"},{"value":"2606.19604"}],"imprints":[{"date":null,"publisher":"APS"}],"license":[{"license":"CC-BY-4.0","url":"http://creativecommons.org/licenses/by/4.0/"}],"page_nr":[],"publication_info":[{"artid":"","journal_issue":"7","journal_title":"Physical Review D","journal_volume":"114","page_end":"","page_start":"","year":"2026"}],"record_creation_date":"2026-10-02T18:00:19.117670+00:00","titles":[{"source":"APS","title":"Sensitivity of the photon-induced processes to the proton charge radius"}]},"updated":"2026-10-03T00:00:38.744526+00:00","id":111659,"created":"2026-10-02T18:00:19.117670+00:00"},{"metadata":{"_files":[{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1007/JHEP10(2026)029/13130_2026_Article_30196.xml.scoap.xml","key":"13130_2026_Article_30196.xml.scoap","filetype":"xml"},{"file":"https://scoap3-prod-backend.s3.cern.ch/media/harvested_files/10.1007/JHEP10(2026)029/13130_2026_Article_30196_a.pdf","key":"13130_2026_Article_30196_a","filetype":"pdf"}],"abstracts":[{"source":"Springer","value":"We argue that the electromagnetic $\\textit{θ}$-term is a physical parameter of the Standard Model coupled to gravity. Specifically, in the context of 4-dimensional Einstein-Maxwell theory we show that there exist Euclidean field configurations that have finite action, are asymptotically flat, and feature non-zero electromagnetic second Chern number. These “gravitational Abelian instantons” correspond to a dyonic extension of a Euclidean wormhole. We argue that these configurations should be included in the gravitational path integral, and that doing so generates a non-perturbative contribution to the vacuum energy density that is $\\textit{θ}$-dependent. We provide a Lorentzian interpretation of these instantons as capturing the effect of quantum fluctuations corresponding to pair production and annihilation of charged black holes. When $\\textit{θ}$ is the expectation value of a dynamical axion field, the instantons presented here generate a potential for the axion, thereby breaking the axion shift symmetry. This provides yet another example of how quantum gravity violates global symmetries through the existence of black holes."}],"arxiv_eprints":[{"categories":["hep-th","gr-qc","hep-ph"],"value":["10.1007/JHEP10(2026)029","2512.13833"]}],"authors":[{"affiliations":[{"country":"United States","organization":"University of Washington","value":"Department of Physics, University of Washington, Seattle, WA, 98195, USA"}],"email":null,"full_name":null,"given_names":"Isabel","surname":"Garcia"},{"affiliations":[{"country":"United States","organization":"University of Washington","value":"Department of Physics, University of Washington, Seattle, WA, 98195, USA"}],"email":null,"full_name":null,"given_names":"Elliot","surname":"Maderazo"}],"collections":[{"primary":"Journal of High Energy Physics"}],"control_number":111673,"copyright":[{"statement":"","holder":"The Author(s)","year":2026}],"dois":[{"value":"10.1007/JHEP10(2026)029"},{"value":"2512.13833"}],"imprints":[{"date":null,"publisher":"Springer"}],"license":[{"license":"CC-BY-4.0","url":"http://creativecommons.org/licenses/by/4.0/"}],"page_nr":[37],"publication_info":[{"artid":"JHEP10(2026)029","journal_issue":"10","journal_title":"Journal of High Energy Physics","journal_volume":"2026","page_end":"37","page_start":"1","year":"2026"}],"record_creation_date":"2026-10-02T18:56:07.058649","titles":[{"source":"Springer","title":"Black holes and Abelian instantons"}]},"updated":"2026-10-02T18:56:11.315655+00:00","id":111673,"created":"2026-10-02T18:56:07.058649"}]}}