https://doi.org/10.1140/epja/s10050-022-00680-3
Regular Article - Theoretical Physics
Bottom mesons 
= 
, 
and 
, 
in heavy hadron chiral perturbation theory
School of Physics and Materials Science, Thapar Institute of Engineering and Technology, 147004, Patiala, Punjab, India
Received:
24
November
2021
Accepted:
2
February
2022
Published online:
28
February
2022
Low energy constants (LECs) of heavy-hadron chiral perturbation theory (HH
PT) for low lying bottom mesons are computed. The available data for = , , and of bottom mesons are used to analyze the mass formulae of low lying bottom mesons having low energy constants up to one-loop corrections. The decay widths of bottom mesons ( = and ) are analyzed to constraint the couplings. These coupling constants are used to fix the one-loop corrections in the mass formulae. The masses and couplings are then used to find LECs from mass formulae. The behavior of tree level masses are studied by changing LECs. This study has improved over the infinite number of sets of LECs for low lying bottom meson masses in HHPT.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022
