The isospin asymmetries of B → Kμ + μ - ; B → K * μ + μ - decays ; the partial branching fractions of the B 0 → K 0 μ + μ -, B + → K + μ + μ - ; B + → K *+ μ + μ - decays are measured as functions of the dimuon mass squared, q 2. The data used correspond to an integrated luminosity of 3 fb-1 from proton-proton collisions collected with the LHCb detector at centre-of-mass energies of 7 TeV ; 8 TeV in 2011 ; 2012, respectively. The isospin asymmetries are both consistent with the Standard Model expectations. The three measured branching fractions favour lower values than their respective theoretical predictions, however they are all individually consistent with the Standard Model. [Figure not available: see fulltext.] © 2014 The Author(s).

Differential branching fractions ; isospin asymmetries of B → K (*) μ + μ - decays

PALANO, Antimo;PAPPAGALLO, MARCO IGNAZIO;
2014-01-01

Abstract

The isospin asymmetries of B → Kμ + μ - ; B → K * μ + μ - decays ; the partial branching fractions of the B 0 → K 0 μ + μ -, B + → K + μ + μ - ; B + → K *+ μ + μ - decays are measured as functions of the dimuon mass squared, q 2. The data used correspond to an integrated luminosity of 3 fb-1 from proton-proton collisions collected with the LHCb detector at centre-of-mass energies of 7 TeV ; 8 TeV in 2011 ; 2012, respectively. The isospin asymmetries are both consistent with the Standard Model expectations. The three measured branching fractions favour lower values than their respective theoretical predictions, however they are all individually consistent with the Standard Model. [Figure not available: see fulltext.] © 2014 The Author(s).
File in questo prodotto:
Non ci sono file associati a questo prodotto.

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/11586/179749
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 376
  • ???jsp.display-item.citation.isi??? 227
social impact