scholarly journals Vector and axial vector mesons in a nonlocal chiral quark model

2016 ◽  
Vol 94 (5) ◽  
Author(s):  
M. F. Izzo Villafañe ◽  
D. Gómez Dumm ◽  
N. N. Scoccola
Keyword(s):  
Quark Model ◽  
Axial Vector ◽  
Chiral Quark Model ◽  
Vector Mesons

scholarly journals The LbL contribution to the muon g-2 from the axial-vector mesons exchanges within the nonlocal quark model

2019 ◽  
Vol 212 ◽  
pp. 05001 ◽  
Author(s):  
A.E. Dorokhov ◽  
A.P. Martynenko ◽  
F.A. Martynenko ◽  
A.E. Radzhabov ◽  
A.S. Zhevlakov
Keyword(s):  
Quark Model ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Axial Vector ◽  
Chiral Quark Model ◽  
Vector Mesons ◽  
Muon Anomalous Magnetic Moment

The light-by-light contribution from the axial-vector (AV) mesons exchanges to the muon anomalous magnetic moment is estimated in the framework of the nonlocal chiral quark model. The preliminary answer for contributions from a1 and f1 mesons to (g − 2)µ is 0.34 · 10−11 and does not support the Melnikov-Vainshtein estimate 2.2 · 10−11.

scholarly journals PARTICLE CONJUGATION AND THE 1/Nc CORRECTIONS TO gA

1995 ◽  
Vol 10 (11) ◽  
pp. 885-891 ◽  
Author(s):  
J. SCHECHTER ◽  
H. WEIGEL
Keyword(s):  
Quark Model ◽  
Axial Vector ◽  
Vector Current ◽  
Axial Vector Current ◽  
Chiral Quark Model

We impose the requirement that the isovector axial vector current for the soliton sector of the chiral quark model transforms correctly under particle conjugation. This forces us to choose an otherwise arbitrary ordering of collective space operators in such a way that the next-to-leading 1/Nc correction to gA computed in the usual cranking model vanishes.

Quark-Model Couplings and Strong Decays of Tensor and Axial-Vector Mesons

1967 ◽  
Vol 164 (5) ◽  
pp. 1803-1805 ◽  
Author(s):  
A. N. Mitra ◽  
Prem P. Srivastava
Keyword(s):  
Quark Model ◽  
Axial Vector ◽  
Vector Mesons

scholarly journals Vector mesons in the extended chiral quark model

1999 ◽  
Vol 1999 (10) ◽  
pp. 022-022 ◽  
Author(s):  
Alexander A Andrianov ◽  
Domenec Espriu
Keyword(s):  
Quark Model ◽  
Chiral Quark Model ◽  
Vector Mesons

scholarly journals FURTHER COMMENTS ON A VANISHING SINGLET AXIAL VECTOR CHARGE

1999 ◽  
Vol 14 (03) ◽  
pp. 205-209 ◽  
Author(s):  
T. P. CHENG ◽  
N. I. KOCHELEV ◽  
VICENTE VENTO
Keyword(s):  
Heavy Quark ◽  
Quark Model ◽  
Perturbative Qcd ◽  
Axial Vector ◽  
Chiral Quark Model ◽  
Axial Charge ◽  
Vacuum Structure ◽  
Recent Suggestion ◽  
Quark Coupling ◽  
Vector Charge

The recent suggestion of a vanishing flavor-singlet axial-charge of nucleon due to a nontrivial vacuum structure is further amplified. A perturbative QCD discussion, applicable for the heavy quark contributions, relates it to the physics of the decoupling theorem. It is also shown that [Formula: see text] leads to a negative η′-meson-quark coupling, which has been found to be compatible with the chiral quark model phenomenology.

scholarly journals sQq¯q¯ ( q=u , d ; Q=c , b ) tetraquarks in the chiral quark model

2021 ◽  
Vol 103 (7) ◽  
Author(s):  
Gang Yang ◽  
Jialun Ping ◽  
Jorge Segovia
Keyword(s):  
Quark Model ◽  
Chiral Quark Model
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