Results 141 to 150 of about 227,336 (268)
Chiral extrapolation of hadronic vacuum polarization
Physics Letters B, 2022 We study the pion-mass dependence of the two-pion channel in the hadronic-vacuum-polarization (HVP) contribution to the anomalous magnetic moment of the muon aμHVP, by using an Omnès representation for the pion vector form factor with the phase shift ...
Gilberto Colangelo +4 more
doaj
Coherent Pion Pairs from Heavy-Ion Collisions [PDF]
arXiv, 1996 The degree to which a nucleus can act as a source for coherent pion pairs is investigated for intermediate-energy heavy-ion collisions. Creation through both isovector and isoscalar channels is considered. Two experimental signals are proposed for evidence of two-pion coherent production, two-pion enhancement and the focusing of outgoing pions along ...
arxiv
A Test of the Charge Symmetry Hypothesis: Positive to Negative Pion Production Ratio Obtained in Bombarding Carbon with Alpha-Particles and Protons [PDF]
, 1953 Hildegard Wilson, Walter H. Barkas
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Nonperturbative partonic quasidistributions of the pion from chiral quark models
Physics Letters B, 2017 We evaluate nonperturbatively the quark quasidistribution amplitude and the valence quark quasidistribution function of the pion in the framework of chiral quark models, namely the Nambu–Jona-Lasinio model and the Spectral Quark Model.
Wojciech Broniowski +1 more
doaj
Interference Effects of the Retardation Term in Pion Photoproduction [PDF]
, 1959 A.M. Wetherell
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Part III. Construction of Nuclear Potential from Pion Theory [PDF]
, 1956 Shigeru Machida, Toshiyuki Toyoda
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Discrepancy Between the Vector-Dominance Model and Pion Production by Polarized Photons [PDF]
, 1969 R. Diebold, J. Poirier
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Pion transverse-momentum spectrum and elliptic anisotropy of partially coherent source
Physics Letters B, 2018 In this letter, we study the pion momentum distribution of a coherent source and investigate the influences of coherent emission on the pion transverse-momentum (pT) spectrum and elliptic anisotropy.
Peng Ru, Ghulam Bary, Wei-Ning Zhang
doaj
Gluon distribution and mass decomposition of the pion and kaon
European Physical Journal C: Particles and FieldsWe present the gluon distribution functions of the pion and kaon in small-x and large-x regions, and compare them with the results obtained from lattice QCD and continuum Schwinger function methods.
Chengdong Han +3 more
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