Results 101 to 110 of about 220,545 (228)
Nonperturbative partonic quasidistributions of the pion from chiral quark models
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
Sigma terms in Pion Weak-production near Threshold by Charged Current
We investigated pion production by charged weak current, which comprises vector and axial vector current. In particular, the contribution by the axial vector current is detailed at the pion threshold in terms of multipole amplitudes, which are useful ...
Cheoun Myung-Ki
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Interference Effects of the Retardation Term in Pion Photoproduction [PDF]
A.M. Wetherell
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Chiral extrapolation of hadronic vacuum polarization
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
The Pion-Nucleon Interaction and Dispersion Relations [PDF]
Geoffrey F. Chew
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Pion-pion and pion-nucleon interactions in chiral perturbation theory [PDF]
Elastic pion-pion and pion-nucleon scattering are reviewed in the context of chiral perturbation theory. Theoretical results from systematic low-energy expansions to O(p^6) for pion-pion and to O(p^3) for pion-nucleon scattering are compared with experimental data. Possible future developments are outlined.
openaire +3 more sources
Part III. Construction of Nuclear Potential from Pion Theory [PDF]
Shigeru Machida, Toshiyuki Toyoda
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Pion transverse-momentum spectrum and elliptic anisotropy of partially coherent source
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
Associated Production in Pion-Nucleon Collisions and Charge Independence [PDF]
Saul Barshay
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Antinucleon Annihilation and Multiplicity of Emitted Pions [PDF]
Z. Koba
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