TY  - JOUR
AU  - Ortega, P. G.
AU  - Segovia, J.
AU  - Entem, D. R.
AU  - Fernandez, F.
PY  - 2017
DA  - 2017//
TI  - Threshold effects in P-wave bottom-strange mesons
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 034010
EP  - 7pp
VL  - 95
IS  - 3
PB  - Amer Physical Soc
AB  - Using a nonrelativistic constituent quark model in which the degrees of freedom are quarkantiquark and meson- meson components, we have recently shown that the Dd((*))K thresholds play an important role in lowering the mass of the c (S) over bar states associated with the physical D-s0(*)(2317) and D-s1(2460) mesons. This observation is also supported by other theoretical approaches such as latticeregularized QCD or chiral unitary theory in coupled channels. Herein, we extend our computation to the lowest P- wave Bs mesons, taking into account the corresponding J(P) = 0(+), 1(-) and 2(+) bottomstrange states predicted by the naive quark model and the BK and B* K thresholds. We assume that mixing with B-s((*))eta and isospin-violating decays to B-s((*))pi are negligible. This computation is important because there is no experimental data in the b (S) over bar sector for the equivalent j(q)(p) = 1/2(+) (D-s0(*)(2317), D-s1 (2460)) heavy-quark multiplet and, as it has been seen in the c (s) over bar sector, the naive theoretical result can be wrong by more than 100 MeV. Our calculation allows us to introduce the coupling with the D-wave B*K channel and to compute the probabilities associated with the different Fock components of the physical state.
SN  - 2470-0010
UR  - http://arxiv.org/abs/1612.04826
UR  - https://doi.org/10.1103/PhysRevD.95.034010
DO  - 10.1103/PhysRevD.95.034010
LA  - English
N1  - WOS:000393744600007
ID  - Ortega_etal2017
ER  -