Electromagnetic-transition form factor for theS11(1535)resonance in the quark model

1976 ◽  
Vol 13 (11) ◽  
pp. 3148-3150
Author(s):  
Seiji Ono
Keyword(s):  
Form Factor ◽  
Quark Model ◽  
Transition Form Factor ◽  
Transition Form ◽  
Electromagnetic Transition

Study of the electromagnetic transition form-factor in ω→π0μ+μ− decay

1981 ◽  
Vol 102 (4) ◽  
pp. 296-298 ◽  
Author(s):  
R.I. Dzhelyadin ◽  
S.V. Golovkin ◽  
A.S. Konstantinov ◽  
V.F. Konstantinov ◽  
V.P. Kubarovski ◽  
...  
Keyword(s):  
Form Factor ◽  
Transition Form Factor ◽  
Transition Form ◽  
Electromagnetic Transition

INFRARED RENORMALON EFFECTS ON LIGHT MESONS ELECTROMAGNETIC TRANSITION FORM FACTOR FMγ*(Q2, ω)

2003 ◽  
Vol 18 (07) ◽  
pp. 1023-1050 ◽  
Author(s):  
YEGANA V. MAMEDOVA
Keyword(s):  
Form Factor ◽  
Perturbative Qcd ◽  
Transition Form Factor ◽  
Form Factors ◽  
Transition Form ◽  
Coupling Constant ◽  
Electromagnetic Transition ◽  
Qcd Factorization ◽  
Factorization Formula ◽  
Light Mesons

The light pseudoscalar π0, η and η′ mesons electromagnetic transition γ* + γ* → M form factors FMγ*(Q2,ω) are calculated, applying the perturbative QCD factorization formula and the frozen coupling constant approximation. In the computations the O(αS) order expression for FMγ*(Q2,ω) and the mesons' infrared renormalon corrected distribution amplitudes are used. In the case of the η and η′ mesons, the SUf(3) ordinary octet-singlet mixing scheme is utilized. Comparisons are made with the results obtained, employing the mesons' ordinary distribution amplitudes and with γ + γ* → M transition form factors.

scholarly journals Chiral anomaly transition form factor of γ → 3π in nonlocal quark model

2019 ◽  
Vol 204 ◽  
pp. 02001
Author(s):  
Alexey Zhevlakov
Keyword(s):  
Form Factor ◽  
Quark Model ◽  
Transition Form Factor ◽  
Local Limit ◽  
Gamma Transition ◽  
Chiral Anomaly ◽  
Chiral Quark Model ◽  
Transition Form

Chiral anomaly of gamma transition into three pions are studied in a framework of nonlocal chiral quark model. In the local limit the result is in agreement with chiral perturbative theory and reproducesWess-Zumino-Witten anomaly. Transition form factor of gamma into three pions in nonlocal quark model has a correction which vanishes in local limit.

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