SCOAP3 Repository 65 records found  1 - 10nextendSearch took 0.02 seconds. 
1. Aspects of the QCD θ -vacuum / Vonk, Thomas ; Guo, Feng-Kun ; Meißner, Ulf-G.
This paper addresses two aspects concerning the θ -vacuum of Quantum Chro-modynamics. [...]
Published in JHEP 1906 (2019) 106 10.1007/JHEP06(2019)106 arXiv:1905.06141
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2. Implications of chiral symmetry on S-wave pionic resonances and the scalar charmed mesons / Du, Meng-Lin ; Guo, Feng-Kun ; Meißner, Ulf-G.
The chiral symmetry of QCD requires energy-dependent pionic strong interactions at low energies. [...]
Published in Physical Review D 99 (2019) 10.1103/PhysRevD.99.114002
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3. Toward a First-Principles Calculation of Electroweak Box Diagrams / Seng, Chien-Yeah ; Meißner, Ulf-G.
We derive a Feynman-Hellmann theorem relating the second-order nucleon energy shift resulting from the introduction of periodic source terms of electromagnetic and isovector axial currents to the parity-odd nucleon structure function F3N. [...]
Published in Physical Review Letters 122 (2019) 10.1103/PhysRevLett.122.211802 arXiv:1903.07969
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4. Isospin breaking decays as a diagnosis of the hadronic molecular structure of the Pc(4457) / Guo, Feng-Kun ; Jing, Hao-Jie ; Meißner, Ulf-G. ; Sakai, Shuntaro
The LHCb Collaboration announced the observation of three narrow structures consistent with hidden-charm pentaquark states. [...]
Published in Physical Review D 99 (2019) 10.1103/PhysRevD.99.091501 arXiv:1903.11503
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5. Constraints on disconnected contributions in ππ scattering / Acharya, N. ; Guo, Feng-Kun ; Meißner, Ulf-G. ; Seng, Chien-Yeah
The accuracy of the lattice QCD computation of hadron-hadron scattering at low isospin depends critically on the ability to compute correlation functions with fermionic disconnected Wick contractions. [...]
Published in JHEP 1904 (2019) 165 10.1007/JHEP04(2019)165 arXiv:1902.10290
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6. Energy shift of the three-particle system in a finite volume / Pang, Jin-Yi ; Wu, Jia-Jun ; Hammer, Hans-Werner ; Meißner, Ulf-G. ; et al
Using the three-particle quantization condition recently obtained in the particle-dimer framework, the finite-volume energy shift of the two lowest three-particle scattering states is derived up to and including order L6. [...]
Published in Physical Review D 99 (2019) 10.1103/PhysRevD.99.074513 arXiv:1902.01111
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7. Nucleon in a periodic magnetic field: Finite-volume aspects / Agadjanov, Andria ; Meißner, Ulf-G. ; Rusetsky, Akaki
The paper presents an extension and a refinement of our previous work on the extraction of the doubly virtual forward Compton scattering amplitude on the lattice by using the background field technique [1]. [...]
Published in Physical Review D 99 (2019) 10.1103/PhysRevD.99.054501 arXiv:1812.06013
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8. Towards a precise determination of the scattering amplitudes of the charmed and light-flavor pseudoscalar mesons / Guo, Zhi-Hui ; Liu, Liuming ; Meißner, Ulf-G. ; Oller, J. A. ; et al
We study the scattering of the light-flavor pseudoscalar mesons ( π,K,η ) off the ground-state charmed mesons ( D,Ds ) within chiral effective field theory. [...]
Published in EPJC 79 (2019) 13 10.1140/epjc/s10052-018-6518-1
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9. Interactions between vector mesons and dynamically generated resonances / Du, Meng-Lin ; Gülmez, Dilege ; Guo, Feng-Kun ; Meißner, Ulf-G. ; et al
The ρρ interaction and the corresponding dynamically generated bound states are revisited. [...]
Published in EPJC 78 (2018) 988 10.1140/epjc/s10052-018-6475-8
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10. Derivation of spontaneously broken gauge symmetry from the consistency of effective field theory II: Scalar field self-interactions and the electromagnetic interaction / Djukanovic, D. ; Gegelia, J. ; Meißner, Ulf-G.
We extend our study of deriving the local gauge invariance with spontaneous symmetry breaking in the context of an effective field theory by considering self-interactions of the scalar field and inclusion of the electromagnetic interaction. [...]
Published in Physics letters B 788 (2019) 436-441 10.1016/j.physletb.2018.11.044
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