TY  - JOUR
AU  - Albertus, C.
AU  - Hernandez, E.
AU  - Nieves, J.
PY  - 2010
DA  - 2010//
TI  - Hyperfine mixing in b -> c semileptonic decay of doubly heavy baryons
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 21
EP  - 25
VL  - 683
IS  - 1
PB  - Elsevier Science Bv
AB  - We qualitatively corroborate the results of [W. Roberts, M. Pervin, Int. J. Mod. Phys. A 24 (2009) 2401] according to which hyperfine mixing greatly affects the decay widths of b -> c semileptonic decays involving doubly heavy bc baryons. However, our predictions for the decay widths of the unmixed states differ from those reported in the work of Roberts and Pervin by a factor of 2, and this discrepancy translates to the mixed case. We further show that the predictions of heavy quark spin symmetry, might be used in the future to experimentally extract information on the admixtures in the actual physical bc baryons, in a model independent manner.
SN  - 0370-2693
UR  - http://arxiv.org/abs/0911.0889
UR  - https://doi.org/10.1016/j.physletb.2009.11.048
DO  - 10.1016/j.physletb.2009.11.048
LA  - English
N1  - ISI:000274129600005
ID  - Albertus_etal2010
ER  -