%0 Journal Article
%T Masses and widths of the exotic molecular B-(s)(()*B-)((s))(*()) states
%A Dai, L. R.
%A Oset, E.
%A Feijoo, A.
%A Molina, R.
%A Roca, L.
%A Martinez Torres, A.
%A Khemchandani, K. P.
%J Physical Review D
%D 2022
%V 105
%N 7
%I Amer Physical Soc
%@ 2470-0010
%G English
%F Dai_etal2022
%O WOS:000809898400002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5317), last updated on Tue, 30 Aug 2022 11:34:00 +0000
%X We study the interaction of the doubly bottom systems BB, B*B, BsB, B-s*B, B*B*, B*B-S, B*B-s*, BsBs, BsBs*, B-s*B-s* by means of vector meson exchange with Lagrangians from an extension of the local hidden gauge approach. The full s-wave scattering matrix is obtained implementing unitarity in coupled channels by means of the Bethe-Salpeter equation. We find poles below the channel thresholds for the attractively interacting channels B*B in I = 0, B-s*B – B*B-s in I = 1/2, B* B* in I = 0, and B-s*B* in I = 1/2, all of them with J(P) = 1(+). For these cases the widths are evaluated identifying the dominant source of imaginary part. We find binding energies of the order of 10-20 MeV, and the widths vary much from one system to the other: of the order of 10-100 eV for the B* B system and B-s*B – B* B-s, about 6 MeV for the B*B* system and of the order of 0.5 MeV for the B-s*B* system.
%R 10.1103/PhysRevD.105.074017
%U https://arxiv.org/abs/2201.04840
%U https://doi.org/10.1103/PhysRevD.105.074017
%P 074017-11pp