scholarly journals Analysis of two-body decays of charmed baryons using the quark-diagram scheme

1996 ◽  
Vol 54 (3) ◽  
pp. 2132-2160 ◽  
Author(s):  
Ling-Lie Chau ◽  
Hai-Yang Cheng ◽  
B. Tseng
2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Y. Ünal ◽  
Ulf-G. Meißner

Abstract We report on the calculation of the CP-violating form factor F3 and the corresponding electric dipole moment for charmed baryons in the spin-1/2 sector generated by the QCD θ-term. We work in the framework of covariant baryon chiral perturbation theory within the extended-on-mass-shell renormalization scheme up to next-to-leading order in the chiral expansion.


2013 ◽  
Vol 726 (4-5) ◽  
pp. 703-709 ◽  
Author(s):  
K.U. Can ◽  
G. Erkol ◽  
B. Isildak ◽  
M. Oka ◽  
T.T. Takahashi

2000 ◽  
Vol 15 (1-4) ◽  
pp. 799-800
Author(s):  
C. G. Wohl
Keyword(s):  

1989 ◽  
Vol 04 (09) ◽  
pp. 877-883 ◽  
Author(s):  
LING-LIE CHAU ◽  
HAI-YANG CHENG

Exclusive two-body decay amplitudes of charmed mesons evaluated by Blok and Shifman (BS) using QCD sum rules are analyzed using the model-independent quark-diagram scheme, which helps to pin point the generic structure of the BS calculations, and their difficulties when compared with the experimental data. We also point out what experimental improvements on the data and which new data are most helpful in sharpening these comparisons. Some comments on possible ways of further improving the theoretical calculations are given.


2006 ◽  
Vol 21 (27) ◽  
pp. 5436-5444
Author(s):  
◽  
Brian T. Meadows

Recent results relating to charm baryon and meson decays from the Belle and BABAR experiments are presented. In addition to recent observations for charm hyperons, evidence for a new charm baryon state, the Λc(2940), observed in its decay to D0p is also reported. No evidence for doubly charmed baryons is seen in e+e- interactions. A measurement of the spin of the Ω- hyperon is made using decays of the [Formula: see text] and [Formula: see text] baryons. On the assumption that the spin of the parent baryons are J = 1/2, the assignment J = 3/2 is confirmed and both J = 1/2 and also higher spins are excluded. New results on rare, Cabibbo-suppressed decays of charm mesons are also presented.


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