New Quarkonium Results from the BABAR experiment

TL;DR

This paper presents new experimental results from the BABAR collaboration on B meson decays involving X(3872), precise B mass difference measurements, and hadronic transitions between Upsilon states, advancing understanding of quarkonium states.

Contribution

It provides novel measurements and analyses of B meson decays and quarkonium transitions, contributing new data to the field of heavy quarkonium physics.

Findings

Observation of B+ and B0 decays to X(3872) with J/Psi pi+pi-

Precise measurement of B mass difference Delta mB

Study of hadronic transitions between Upsilon mesons

Abstract

New BABAR results on B mesons and quarkonia are presented: an analysis of B+ --> X(3872)K+ and B0 --> X(3872)K0 decays with X(3872) --> J/Psi pi+pi-, a precise measurement of the B mass difference Delta mB = m(B0) - m(B+) and a study of hadronic transition between Upsilon mesons.