Search for the rare decay B0 → J/ψφ

• 作者: R.Aaij C.Abellán Beteta T.Ackernley B.Adeva M.Adinolfi H.Afshamia C.A.Aidala S.Aiola Z.Ajaltouni S.Akar
• 来源期刊: 中国物理C（英文版）
• 年，卷（期）: 2021,（4）
• 所属期刊栏目: PARTICLES AND FIELDS
• 页码范围: 47-60
• 页数: 14页
• 语种: 英文
• DOI: 10.1088/1674-1137/abdf40

摘要

A search for the rare decay B0 → J/ψψ is performed using pp collision data collected with the LHCb detector at centre-of-mass energies of 7,8 and 13 TeV,corresponding to an integrated luminosity of 9 fb-1.No significant signal of the decay is observed and an upper limit of 1.1 × 10-7 at 90％ confidence level is set on the branching fraction.