Angular distributions of the decay B+→ K∗(892)+μ+μ− are studied using events collected with the CMS detector in s = 8 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 20.0 fb−1. The forward-backward asymmetry of the muons and the longitudinal polarization of the K∗(892)+ meson are determined as a function of the square of the dimuon invariant mass. These are the first results from this exclusive decay mode and are in agreement with a standard model prediction. [Figure not available: see fulltext.]

Angular analysis of the decay B+ → K∗(892)+ μ + μ − in proton-proton collisions at √s = 8 TeV

Meridiani P.;Amapane N.;Argiro' S.;Bellan R.;Bellora A.;Costa M.;Covarelli R.;Kiani B.;Migliore E.;Monaco V.;Monteil E.;Obertino M. M.;Pacher L.;Pinna Angioni G. L.;Siviero F.;Sola V.;Solano A.;Tornago M.;
2021-01-01

Abstract

Angular distributions of the decay B+→ K∗(892)+μ+μ− are studied using events collected with the CMS detector in s = 8 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 20.0 fb−1. The forward-backward asymmetry of the muons and the longitudinal polarization of the K∗(892)+ meson are determined as a function of the square of the dimuon invariant mass. These are the first results from this exclusive decay mode and are in agreement with a standard model prediction. [Figure not available: see fulltext.]
2021
2021
4
1
34
B physics; Hadron-Hadron scattering (experiments)
Sirunyan A.M.; Tumasyan A.; Adam W.; Bergauer T.; Dragicevic M.; Escalante Del Valle A.; Fruhwirth R.; Jeitler M.; Krammer N.; Lechner L.; Liko D.; Mi...espandi
File in questo prodotto:
File Dimensione Formato  
Sirunyan2021_Article_AngularAnalysisOfTheDecayBK892.pdf

Accesso aperto

Tipo di file: PDF EDITORIALE
Dimensione 661.21 kB
Formato Adobe PDF
661.21 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1840508
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 21
  • ???jsp.display-item.citation.isi??? 15
social impact