Bound on dissipative effects from semileptonic neutral B-meson decays

TL;DR

This paper investigates potential non-standard dissipative effects in neutral B-meson decays using an open quantum systems framework, deriving bounds from experimental data to constrain new physics beyond the standard model.

Contribution

It introduces an open quantum systems approach to analyze dissipative effects in B-meson decays and establishes experimental bounds on these effects.

Findings

Bound on dissipative effects from experimental data

Extended quantum treatment of B-meson system

Constraints on non-standard environmental interactions

Abstract

The semileptonic decay asymmetry $\mathcal{A}_{\Delta m}$ is studied within the open quantum systems approach to the physics of the neutral meson $B^0$-$\overline{B^0}$ system: this extended treatment takes into account possible non-standard, dissipative effects induced by the presence of an external environment. A bound on these effects is provided through the analysis of available experimental data from the Belle Collaboration.