Inclusive semileptonic $$ {B}_s^0 $$ meson decays at the LHC via a sum-of-exclusive modes technique: possibilities and prospects

• DOI: 10.1007/jhep06(2024)158
• Publication Date: 2024-06-26T12:02:33Z
• Authors: M. De Cian; N. Feliks; M. Rotondo; K. Keri Vos
• Keywords: High Energy Physics - Phenomenology; High Energy Physics - Experiment (hep-ex); High Energy Physics - Phenomenology (hep-ph); FOS: Physical sciences; High Energy Physics - Experiment

Abstract

We propose an approach for measuring the moments of the hadronic invariant mass distribution in semileptonic

$$ {B}_s^0 $$

B s 0

meson decays using a sum-of-exclusive technique. Using the present and foreseen knowledge about exclusive semileptonic

$$ {B}_s^0 $$

B s 0

decays, we estimate the uncertainties on moments of the kinematic distribution. Semileptonic

$$ {B}_s^0 $$

B s 0

decays can be described, as their B 0 counterpart, using the Heavy Quark Expansion (HQE), with the only difference between the

$$ {B}_s^0 $$

B s 0

and B 0 mesons being the SU(3) F breaking effects that change the numerical values of the non-perturbative HQE parameters. We extract the HQE parameters for the

$$ {B}_s^0 $$

B s 0

decays from our estimates of the moments, showing the potential of the proposed method. We identify a set of required measurements for a future precision measurement.