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Evidence of CP violation in B -> hhh charmless decays
<!--HTML-->We present the first evidence of CP violation in the B<sup>+</sup>→ pi<sup>+</sup>pi<sup>-</sup>pi<sup>+</sup>, B<sup>+</sup>→ K<sup>+</sup>pi<sup>+</sup>pi<sup>-<...
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Lenguaje: | eng |
Publicado: |
2012
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/1482661 |
Sumario: | <!--HTML-->We present the first evidence of CP violation in the B<sup>+</sup>→ pi<sup>+</sup>pi<sup>-</sup>pi<sup>+</sup>, B<sup>+</sup>→ K<sup>+</sup>pi<sup>+</sup>pi<sup>-</sup>, B<sup>+</sup>→ K<sup>+</sup>K<sup>-</sup>pi<sup>+</sup> and B<sup>+</sup>→K<sup>+</sup>K<sup>-</sup>K<sup>+</sup> decays using the 1.0 fb<sup>-1</sup> of data collected by the LHCb experiment during 2011. The results show that the 3pi and Kpipi channels present a positive asymmetry while the KKpi and KKK modes present a negative asymmetry. We also study the variation of the CP violation effects in the phase space of each three-body decay. We find significant inhomogeneities that reveal regions with particularly large asymmetries in the pipi and KK low mass regions in B<sup>+</sup>→pi<sup>+</sup>pi<sup>-</sup>pi<sup>+</sup> and B<sup>+</sup>→K<sup>+</sup>K<sup>-</sup>pi<sup>+</sup> respectively. |
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