We present an angular analysis of the B+→K∗+(→KS0π+)μ+μ- decay using 9 fb-1 of pp collision data collected with the LHCb experiment. For the first time, the full set of CP-averaged angular observables is measured in intervals of the dimuon invariant mass squared. Local deviations from standard model predictions are observed, similar to those in previous LHCb analyses of the isospin-partner B0→K∗0μ+μ- decay. The global tension is dependent on which effective couplings are considered and on the choice of theory nuisance parameters.

Angular Analysis of the B+ -> K*(+)mu(+) mu(-) Decay

Bassi, G.
Membro del Collaboration Group
;
Lusiani, A.
Membro del Collaboration Group
;
Morello, M. J.
Membro del Collaboration Group
;
Pajero, T.
Membro del Collaboration Group
;
Pica, L.
Membro del Collaboration Group
;
Ribatti, R.
Membro del Collaboration Group
;
2021

Abstract

We present an angular analysis of the B+→K∗+(→KS0π+)μ+μ- decay using 9 fb-1 of pp collision data collected with the LHCb experiment. For the first time, the full set of CP-averaged angular observables is measured in intervals of the dimuon invariant mass squared. Local deviations from standard model predictions are observed, similar to those in previous LHCb analyses of the isospin-partner B0→K∗0μ+μ- decay. The global tension is dependent on which effective couplings are considered and on the choice of theory nuisance parameters.
2021
Settore FIS/01 - Fisica Sperimentale
File in questo prodotto:
File Dimensione Formato  
PhysRevLett.126.161802.pdf

accesso aperto

Tipologia: Published version
Licenza: Creative Commons
Dimensione 323.11 kB
Formato Adobe PDF
323.11 kB Adobe PDF

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/11384/111006
Citazioni
  • ???jsp.display-item.citation.pmc??? 2
  • Scopus 115
  • ???jsp.display-item.citation.isi??? 63
social impact