scholarly journals Exclusive semi-leptonic decays of bottom mesons in the spectator quark model

1989 ◽  
Vol 41 (4) ◽  
pp. 690-690 ◽  
Author(s):  
J. Körner ◽  
G. A. Schuler





1997 ◽  
Vol 98 (1) ◽  
pp. 159-167 ◽  
Author(s):  
M. Ishida ◽  
S. Ishida ◽  
M. Oda
Keyword(s):  
B Meson ◽  


1987 ◽  
Vol 59 (14) ◽  
pp. 1521-1524 ◽  
Author(s):  
Wei-Shu Hou ◽  
A. Soni ◽  
Herbert Steger




Author(s):  
Hong-Wei Ke ◽  
Fang Lu ◽  
Xiao-Hai Liu ◽  
Xue-Qian Li

Abstract In this work we study the weak decays of $$\Xi _{cc}\rightarrow \Xi _c$$Ξcc→Ξc and $$\Xi _{cc}\rightarrow \Xi '_c$$Ξcc→Ξc′ in the light-front quark model. Generally, a naive, but reasonable conjecture suggests that the cc subsystem in $$\Xi _{cc}$$Ξcc ( us pair in $$\Xi ^{(')}_c$$Ξc(′)) stands as a diquark with definite spin and color assignments. During the concerned processes, the diquark of the initial state is not a spectator, namely must be broken. A Racah transformation would decompose the original (cc)q into a combination of c(cq) components. Thus we may deal with the decaying c quark alone while keeping the (cq) subsystem as a spectator. With the re-arrangement of the inner structure we calculate the form factors numerically and then obtain the rates of semi-leptonic decays and non-leptonic decays, which will be measured in the future.



1993 ◽  
Vol 08 (29) ◽  
pp. 2775-2783 ◽  
Author(s):  
L. MAHARANA ◽  
A. NATH ◽  
A. R. PANDA

Weak leptonic decays of light and heavy pseudoscalar mesons are studied in a field-theoretic quark model where the mesons are described by constituent quarks and antiquarks with a particular ansatz and a Harmonic oscillator wave function. With constituent quark masses and Harmonic oscillator radii for mesons as parameters of the model, decay constants are calculated and found as (fπ, fk, fD, fB) = (132 MeV , 161 MeV , 160 MeV , 115 MeV ) indicating a reasonable agreement with the experimental data wherever available. Partial decay widths and branching ratios for kinematically allowed leptonic decay processes are also estimated and compared with the experiments wherever available.



1968 ◽  
Vol 40 (2) ◽  
pp. 339-352
Author(s):  
Tsunehiro Kobayashi ◽  
Kimiaki Konno


1988 ◽  
Vol 5 (4) ◽  
pp. 287-290 ◽  
Author(s):  
A Abbas


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