Masses and decay widths of radially excited Bottom mesons

TL;DR

This paper predicts the masses and decay widths of radially excited bottom mesons using heavy quark effective theory, providing theoretical guidance for future experimental searches.

Contribution

It introduces a novel application of the effective Lagrangian approach to predict properties of excited bottom mesons based on charm meson data and heavy quark symmetry.

Findings

Predicted masses of 2S and 2P bottom mesons with and without strangeness.

Constrained decay widths and hadronic coupling constants for these states.

Provided theoretical benchmarks for upcoming experimental investigations.

Abstract

Inspired from the experimental information coming from LHC [2,3] and Babar [4] for radially higher excited charmed mesons, we predict the masses and decays of the n=2 S-wave and P- wave bottom mesons using the effective lagrangian approach. Using heavy quark effective theory approach, non-perturbative parameters (?, ?1 and ?2) are fitted using the available experimental and theoretical informations on charm masses. Using heavy quark symmetry and the values of these fitted parameters, the masses of radially excited even and odd parity bottom mesons with and without strangness are predicted. These predicted masses led in constraining the decay widths of these 12 states, and also shed light on the unknown values of the higher hadronic coupling constants eeg 2 SH and eeg 2 TH. Studying the properties like masses, decays of 2S and 2P states and some hadronic couplings would help forthcoming experiments to look into these states in future.