scholarly journals Semileptonic decays of heavy Λ baryons in a quark model

2005 ◽  
Vol 72 (3) ◽  
Author(s):  
Muslema Pervin ◽  
Winston Roberts ◽  
Simon Capstick
Keyword(s):  
Quark Model ◽  
Semileptonic Decays

Weak mixing angles from semileptonic decays in the quark model

1986 ◽  
Vol 56 (4) ◽  
pp. 298-301 ◽  
Author(s):  
Benjamin Grinstein ◽  
Mark B. Wise ◽  
Nathan Isgur
Keyword(s):  
Quark Model ◽  
Semileptonic Decays ◽  
Weak Mixing ◽  
Mixing Angles

scholarly journals Semileptonic decays of doubly heavy baryons in the relativistic quark model

2004 ◽  
Vol 70 (1) ◽  
Author(s):  
D. Ebert ◽  
R. N. Faustov ◽  
V. O. Galkin ◽  
A. P. Martynenko
Keyword(s):  
Quark Model ◽  
Semileptonic Decays ◽  
Relativistic Quark Model ◽  
Heavy Baryons

Comment on ‘‘Weak mixing angles from semileptonic decays in the quark model’’

1987 ◽  
Vol 58 (15) ◽  
pp. 1583-1583 ◽  
Author(s):  
Timothy Altomari ◽  
Lincoln Wolfenstein
Keyword(s):  
Quark Model ◽  
Semileptonic Decays ◽  
Weak Mixing ◽  
Mixing Angles

scholarly journals Semileptonic decays of double heavy baryons in a relativistic constituent three-quark model

2009 ◽  
Vol 80 (3) ◽  
Author(s):  
Amand Faessler ◽  
Thomas Gutsche ◽  
Mikhail A. Ivanov ◽  
Jürgen G. Körner ◽  
Valery E. Lyubovitskij
Keyword(s):  
Quark Model ◽  
Semileptonic Decays ◽  
Heavy Baryons

scholarly journals HYPERFINE MIXING AND THE SEMILEPTONIC DECAYS OF DOUBLE-HEAVY BARYONS IN A QUARK MODEL

2009 ◽  
Vol 24 (13) ◽  
pp. 2401-2413 ◽  
Author(s):  
W. ROBERTS ◽  
MUSLEMA PERVIN
Keyword(s):  
Wave Function ◽  
Decay Rate ◽  
Quark Model ◽  
Semileptonic Decay ◽  
Semileptonic Decays ◽  
Wave Functions ◽  
Total Rate ◽  
Spin Wave Function ◽  
Full Wave ◽  
Heavy Baryons

The semileptonic decays of the lowest-lying double-heavy baryons are treated in a quark model. For the Ξbb, hyperfine mixing in the spin wave function leaves the total rate for decay into the lowest lying daughter baryons essentially unchanged, but changes the relative rates into the Ξbc and [Formula: see text]. The same pattern is obtained in the decays of the Ωbb. For the Ξbc, this mixing leads to factor of about 17 suppression in the decay rate to the [Formula: see text] when wave functions truncated to the largest components are used, but the total semileptonic decay rate of the parent baryon remains essentially unchanged. For the Ωbc, the decay to the [Formula: see text] is suppressed by a factor of more than 25 from the unmixed case. When the full wave functions are used, the large suppression of the decays to the [Formula: see text] and [Formula: see text] persists.

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