scholarly journals $b\to c$ semileptonic decay of triply heavy baryons and $c\to s,d$ semileptonic decays of ground-state $cb$ baryons

2013 ◽  
Author(s):  
Eliecer Hernández Gajate ◽  
Conrado Albertus-Torres ◽  
J. M. Flynn ◽  
Juan Nieves
Keyword(s):  
Ground State ◽  
Semileptonic Decay ◽  
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.

Semileptonic Decays of Heavy Baryons

2020 ◽  
Vol 51 (4) ◽  
pp. 625-631
Author(s):  
V. O. Galkin ◽  
R. N. Faustov
Keyword(s):  
Semileptonic Decays ◽  
Heavy Baryons

scholarly journals Exclusive semileptonic decays of ground-state cb baryons driven by a c \rightarrow s, d quark transition

2012 ◽  
Author(s):  
Conrado Albertus-Torres ◽  
Eliecer Hernández Gajate ◽  
Juan Nieves
Keyword(s):  
Ground State ◽  
Semileptonic Decays

MOMENTUM-SPACE FADDEEV CALCULATIONS FOR GROUND-STATE TRIPLY AND DOUBLY HEAVY BARYONS IN THE CONSTITUENT QUARK MODEL

2010 ◽  
Vol 25 (24) ◽  
pp. 2077-2088 ◽  
Author(s):  
W. ZHENG ◽  
H. R. PANG
Keyword(s):  
Quark Model ◽  
Ground State ◽  
Constituent Quark ◽  
Relativistic Correction ◽  
Constituent Quark Model ◽  
Spin Splitting ◽  
Decuplet Baryon ◽  
Heavy Baryons ◽  
Three Body ◽  
S Quarks

In the framework of constituent quark model, mass spectra of the ground-state baryons consisting of three or two heavy (b or c) and one light (u, d or s) quarks are calculated by solving three-body Faddeev equations. The results imply that, it is possible to obtain a unified model to describe heavy baryons spectra, as well as meson and SU(3) octet and decuplet baryon spectra. We find that, when taking into account the relativistic correction quark–diquark approximation and three-body Faddeev approach tend to give similar predictions for heavy–light systems. We also study the spin splitting of JP = (1/2+) and JP = (3/2+).

HEAVY PENTAQUARKS AND DOUBLY HEAVY BARYONS IN QUASIPARTICLE APPROACH

2012 ◽  
Vol 27 (01) ◽  
pp. 1250006 ◽  
Author(s):  
A. CHANDRA ◽  
A. BHATTACHARYA ◽  
B. CHAKRABARTI
Keyword(s):  
Heavy Quark ◽  
Flux Tube ◽  
Regge Trajectory ◽  
Ground State ◽  
Tube Model ◽  
Regge Trajectories ◽  
Heavy Baryons ◽  
Good Agreement

In the framework of the quasiparticle approach, the ground state mass of heavy pentaquarks have been investigated in diquark–diquark–antiquark picture and the higher states are investigated in the mass loaded flux tube model where two light diquarks are supposed to be linked by a flux tube to the heavy quark. The Regge trajectories for heavy pentaquarks have been studied. The Regge slope (α) of these particles have been obtained as ≈1 GeV2 which indicates that the Regge trajectory follows the linearity conditions with universal value of α (~ 1 GeV2). The ground state mass of doubly charm and doubly bottom baryons like [Formula: see text] have also been investigated in quasiparticle approach. The results are found to be in reasonably good agreement with the experimental and other theoretical estimates.

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
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