Use of B→J/ψ f0 decays to discern the qq̄ or tetraquark nature of scalar mesons

Sheldon Stone, Liming Zhang

Research output: Contribution to journalArticle

57 Scopus citations

Abstract

We consider the relative decay rates of B̄0 and B̄s0 mesons into a J/ψ plus a light scalar meson, either the f0(500) (σ) or the f0(980). We show that it is possible to distinguish between the quark content of the scalars being quark-antiquark or tetraquark by measuring specific ratios of decay rates. Using current data we determine the ratio of form factors in B̄s0→J/ψf0(980) with respect to B̄0→J/ψf0(500) decays to be 0.99-0.04+0.13 at a four-momentum transfer squared equal to the mass of the J/ψ meson squared. In the case where these light mesons are considered to be quark-antiquark states, we give a determination of the mixing angle between strange and light quark states of less than 29 at 90% confidence level. We also discuss the use of a similar ratio to investigate the structure of other isospin singlet states.

Original languageEnglish (US)
Article number062001
JournalPhysical Review Letters
Volume111
Issue number6
DOIs
StatePublished - Aug 6 2013

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Use of B→J/ψ f<sub>0</sub> decays to discern the qq̄ or tetraquark nature of scalar mesons'. Together they form a unique fingerprint.

  • Cite this