The B± meson production asymmetry in pp collisions is measured using B+→D-0π+ decays. The data were recorded by the LHCb experiment during Run 1 of the LHC at center-of-mass energies of s=7 and 8 TeV. The production asymmetries, integrated over transverse momenta in the range 2<pT<30 GeV/c, and rapidities in the range 2.1<y<4.5 are measured to be Aprod(B+,s=7 TeV)=(-0.41±0.49±0.10)×10-2, Aprod(B+,s=8 TeV)=(-0.53±0.31±0.10)×10-2, where the first uncertainties are statistical and the second are systematic. These production asymmetries are used to correct the raw asymmetries of B+→J/ψK+ decays, thus allowing a measurement of the CP asymmetry, ACP(B+→J/ψK+)=(0.09±0.27±0.07)×10-2.

Measurement of the B± production asymmetry and the CP asymmetry in B±→J/ψK± decays

De Serio, M.;
2017

Abstract

The B± meson production asymmetry in pp collisions is measured using B+→D-0π+ decays. The data were recorded by the LHCb experiment during Run 1 of the LHC at center-of-mass energies of s=7 and 8 TeV. The production asymmetries, integrated over transverse momenta in the range 2
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: http://hdl.handle.net/11586/215721
 Attenzione

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

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 15
  • ???jsp.display-item.citation.isi??? 6
social impact