Measurement of CP violation in the phase space of B± → K+K-π± and B± → π+π-π± decays

LHCb Collaboration

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Resum

The charmless decays B± → K+K-π± and B± → π+π-π± are reconstructed in a data set of pp collisions with an integrated luminosity of 1.0 fb-1 and center-of-mass energy of 7 TeV, collected by LHCb in 2011. the inclusive charge asymmetries of these modes are measured to be ACP(B±→K+K-π±)=-0.141±0.040(stat)±0.018(syst)±0.007(J=ΠK±) and ACP(B± → π+π-π±) = 0.117 ± 0.021 (stat)±0.009 (syst) ± 0.007(J=Π K±), where the theird uncertainty is due to the CP asymmetry of the B± → J=ΠK± reference mode. In addition to the inclusive CP asymmetries, larger asymmetries are observed in localized regions of phase space.

Idioma originalAnglès
Número d’article011801
RevistaPhysical Review Letters
Volum112
Número1
DOIs
Estat de la publicacióPublicada - 7 de gen. 2014
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