SCOAP3 Repository 18 records found  1 - 10nextSearch took 0.02 seconds. 
1. Sequentially loop-generated quark and lepton mass hierarchies in an extended Inert Higgs Doublet model / Hernández, A. ; Kovalenko, Sergey ; Pasechnik, Roman ; Schmidt, Ivan
Extended scalar and fermion sectors offer new opportunities for generating the observed strong hierarchies in the fermion mass and mixing patterns of the Standard Model (SM). [...]
Published in JHEP 1906 (2019) 056 10.1007/JHEP06(2019)056 arXiv:1901.02764
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2. Theoretical uncertainties in exclusive electroproduction of S -wave heavy quarkonia / Cepila, Jan ; Nemchik, Jan ; Krelina, Michal ; Pasechnik, Roman
In this work, we revise the conventional description of J/ψ(1S) \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$J/\psi (1S)$$\end{document} , Υ(1S) \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\Upsilon (1S)$$\end{document} , ψ′(2S) \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\psi '(2S)$$\end{document} and Υ′(2S) \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\Upsilon '(2S)$$\end{document} elastic photo- and electroproduction off a nucleon target within the color dipole picture and carefully study various sources of theoretical uncertainties in calculations of the corresponding electroproduction cross sections. [...]
Published in EPJC 79 (2019) 495 10.1140/epjc/s10052-019-7016-9
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3. Time-crystal ground state and production of gravitational waves from QCD phase transition A.A and A.M. acknowledge support by the NSFC(11875113), the Shanghai Municipality(KBH1512299), and by Fudan University(JJH1512105). R.P. was partially supported by the Swedish Research Council, contract numbers 621-2013-428 and 2016-05996, by CONICYT grant MEC80170112 (Chile), as well as by the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme(668679). This work was supported in part by the Ministry of Education, Youth and Sports of the Czech Republic, project LT17018. The work has been performed in the framework of COST Action CA15213 “Theory of hot matter and relativistic heavy-ion collisions” (THOR) / Addazi, Andrea ; Marcianò, Antonino ; Pasechnik, Roman
We propose a novel mechanism for the production of gravitational waves in the early Universe that originates from the relaxation processes induced by the QCD phase transition. [...]
Published in Chinese Phys. C 43 (2019) 065101 10.1088/1674-1137/43/6/065101 arXiv:1812.07376
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4. Mirror symmetry of quantum Yang–Mills vacua and cosmological implications / Addazi, Andrea ; Marcianò, Antonino ; Pasechnik, Roman ; Prokhorov, George
We find an argument related to the existence of a Z2 -symmetry for the renormalization group flow derived from the bare Yang–Mills Lagrangian, and show that the cancellation of the vacuum energy may arise motivated both from the renormalization group flow solutions and the effective Yang–Mills action. [...]
Published in EPJC 79 (2019) 251 10.1140/epjc/s10052-019-6780-x
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5. Scale hierarchies, symmetry breaking, and particle spectra in SU(3)-family extended SUSY trinification / Camargo-Molina, José E. ; Morais, António P. ; Ordell, Astrid ; Pasechnik, Roman ; et al
A unification of left-right SU(3)L×SU(3)R, color SU(3)C, and family SU(3)F symmetries in a maximal rank-8 subgroup of E8 is proposed as a landmark for future explorations beyond the Standard Model (SM). [...]
Published in Physical Review D 99 (2019) 10.1103/PhysRevD.99.035041 arXiv:1711.05199
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6. Spin rotation effects in diffractive electroproduction of heavy quarkonia / Krelina, Michal ; Nemchik, Jan ; Pasechnik, Roman ; Čepila, Jan
In this work we present for the first time the comprehensive study of the Melosh spin rotation effects in diffractive electroproduction of S -wave heavy quarkonia off a nucleon target. [...]
Published in EPJC 79 (2019) 154 10.1140/epjc/s10052-019-6666-y
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7. Exclusive heavy quark-pair production in ultraperipheral collisions / Pelicer, Mateus Reinke ; de Oliveira, Emmanuel Gräve ; Pasechnik, Roman
In this article, we study the fully differential observables of the exclusive production of heavy (charm and bottom) quark pairs in high-energy ultraperipheral pA and AA collisions. [...]
Published in Physical Review D 99 (2019) 10.1103/PhysRevD.99.034016 arXiv:1811.12888
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8. Diffractive dijet production: Breakdown of factorization / Kopeliovich, B. Z. ; Pasechnik, Roman ; Potashnikova, I. K.
We analyze the origin of dramatic breakdown of diffractive factorization, observed in single-diffractive (SD) dijet production in hadronic collisions. [...]
Published in Physical Review D 98 (2018) 10.1103/PhysRevD.98.114021 arXiv:1807.05548
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9. Heavy charged scalars from c s ¯ $$ c\overline{s} $$ fusion: a generic search strategy applied to a 3HDM with U(1) × U(1) family symmetry / Camargo-Molina, José ; Mandal, Tanumoy ; Pasechnik, Roman ; Wessén, Jonas
We describe a class of three Higgs doublet models (3HDMs) with a softly broken U(1) × U(1) family symmetry that enforces a Cabibbo-like quark mixing while forbidding tree-level flavour changing neutral currents. [...]
Published in JHEP 1803 (2018) 024 10.1007/JHEP03(2018)024 arXiv:1711.03551
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10. CP4 miracle: shaping Yukawa sector with CP symmetry of order four / Ferreira, P.M. ; Ivanov, Igor ; Jiménez, Enrique ; Pasechnik, Roman ; et al
We explore the phenomenology of a unique three-Higgs-doublet model based on the single CP symmetry of order 4 (CP4) without any accidental symmetries. [...]
Published in JHEP 1801 (2018) 065 10.1007/JHEP01(2018)065 arXiv:1711.02042
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