The decays of the χb1(1P), χb2(1P), χb1(2P) and χb2(2P) mesons into the Υ(1S)μ+μ− final state are observed with a high significance using proton-proton collision data collected with the LHCb detector and corresponding to an integrated luminosity of 9 fb−1. The newly observed decays together with the Υ(2S) → Υ(1S)π+π− and Υ(3S) → Υ(2S)π+π− decay modes are used for precision measurements of the mass and mass splittings for the hidden-beauty states.

Observation of muonic Dalitz decays of chib mesons and precise spectroscopy of hidden-beauty states

Brundu D.;Contu A.;De Angelis C.;Dettori F.;Dordei F.;Fabiano F.;Litvinov R.;Manca G.;Oldeman R.;Saitta B.;Sun J.;
2024-01-01

Abstract

The decays of the χb1(1P), χb2(1P), χb1(2P) and χb2(2P) mesons into the Υ(1S)μ+μ− final state are observed with a high significance using proton-proton collision data collected with the LHCb detector and corresponding to an integrated luminosity of 9 fb−1. The newly observed decays together with the Υ(2S) → Υ(1S)π+π− and Υ(3S) → Υ(2S)π+π− decay modes are used for precision measurements of the mass and mass splittings for the hidden-beauty states.
2024
Hadron-Hadron Scattering
Quarkonium
Spectroscopy
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/427087
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