Masses and decay widths for radially excited S-wave bottom mesons

Ritu Garg; A. Upadhyay

doi:10.1140/epjp/s13360-022-03043-5

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2024 Impact factor 2.9

EPJ PLUS - Condensed Matter and Complex Systems

Eur. Phys. J. Plus (2022) 137: 828
https://doi.org/10.1140/epjp/s13360-022-03043-5

Regular Article

Masses and decay widths for radially excited $n = 3$ S-wave bottom mesons

Ritu Garg^a and A. Upadhyay

School of Physics and Materials Science, TIET, 147004, Patiala, Punjab, India

^a ritugarg039@gmail.com

Received: 8 January 2022
Accepted: 6 July 2022
Published online: 18 July 2022

Abstract

By exploring Heavy Quark Effective Theory, we analyzed masses, decay widths and couplings for experimentally missing n = 3 S-wave bottom mesons. Using theoretical information available on charm mesons and flavor symmetry parameters, we calculated masses for radially excited (n = 3) bottom meson states $B (3^{1} S_{0})$ $B(3^{1}S_{0})$ , $B (3^{3} S_{1})$ $B(3^{3}S_{1})$ with their strange partners $B_{s} (3^{1} S_{0})$ $B_{s}(3^{1}S_{0})$ and $B_{s} (3^{3} S_{1})$ $B_{s}(3^{3}S_{1})$ . Also, decay widths are calculated in terms of hadronic coupling constants ${\tilde{g}}_{HH}$ ${\tilde{g}}_{HH}$ , ${\tilde{\tilde{g}}}_{HH}$ $\tilde{{\tilde{g}}}_{HH}$ , ${\tilde{\tilde{g}}}_{SH}$ $\tilde{{\tilde{g}}}_{SH}$ , ${\tilde{\tilde{g}}}_{TH}$ $\tilde{{\tilde{g}}}_{TH}$ . Further, branching ratios and branching fractions of these states are computed to have better understanding for decays of these mesons. It may provide crucial information for higher excited states and may motivate upcoming experiments at LHCb, PANDA, BESIII, $D \emptyset$ $D\emptyset$ , etc., to look for these states.