Observation of Zb (10610) and Zb (10650) Decaying to B Mesons

(Belle Collaboration)

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

We report the analysis of the three-body e+e-→BBπ±, BB∗π±, and B∗B∗π± processes, including the first observations of the Zb±(10610)→[BB∗+c.c.]± and Zb±(10650)→[B∗B∗]± transitions that are found to dominate the corresponding final states. We measure Born cross sections for the three-body production of σ(e+e-→[BB∗+c.c.]±π)=[17.4±1.6(stat)±1.9(syst)] pb and σ(e+e-→[B∗B∗]±π)=[8.75±1.15(stat)±1.04(syst)] pb and set a 90% C.L. upper limit of σ(e+e-→[BB]±π)<2.9 pb. The results are based on a 121.4 fb-1 data sample collected with the Belle detector at a center-of-mass energy near the (10860) peak.

Original languageEnglish
Article number212001
JournalPhysical review letters
Volume116
Issue number21
DOIs
Publication statusPublished - 2016 May 24

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Observation of Zb (10610) and Zb (10650) Decaying to B Mesons'. Together they form a unique fingerprint.

Cite this