scholarly journals Radiative corrections ofO(α)for pion beta decay in the light-front quark model

2001 ◽  
Vol 63 (5) ◽  
Author(s):  
Wolfgang Jaus
Keyword(s):  
Quark Model ◽  
Beta Decay ◽  
Light Front ◽  
Radiative Corrections

scholarly journals Mesonic tensor form factors with the light front quark model

2001 ◽  
Vol 64 (11) ◽  
Author(s):  
C. Q. Geng ◽  
C. W. Hwang ◽  
C. C. Lih ◽  
W. M. Zhang
Keyword(s):  
Quark Model ◽  
Form Factors ◽  
Light Front ◽  
Tensor Form

Double-beta decay and resonances in the nucleus

1978 ◽  
Vol 56 (4) ◽  
pp. 399-402 ◽  
Author(s):  
Charles Picciotto
Keyword(s):  
Quark Model ◽  
Beta Decay ◽  
Numerical Results ◽  
Double Beta Decay ◽  
Electron Neutrino ◽  
Present Calculation ◽  
Upper Limit ◽  
Underlying Mechanisms

Double-beta decay half-lives are calculated with the assumption that the emission of electron–neutrino pairs occurs via a Δ(1232) resonance in the nucleus. Numerical results are obtained with a quark model for the hadrons. By assuming that total rates are produced by a combination of neutrinoless and two-nuetrino modes, a lepton-nonconservation parameter η ~ 10−5 is obtained. Although the actual modes of decay and underlying mechanisms are undetermined, the present calculation can be used to obtain an upper limit for the probability admixture of resonances in the nucleus of a few percent.

scholarly journals The weak decays of $\Xi^{(')}_{c}\to\Xi$ in the light-front quark model

2021 ◽  
Author(s):  
Hong-Wei Ke ◽  
Qing-Qing Kang ◽  
Xiao-Hai Liu ◽  
Xue-Qian 李学潜 Li
Keyword(s):  
Quark Model ◽  
Light Front ◽  
Weak Decays
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