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dc.contributor | Universitat de Barcelona |
---|---|
dc.contributor.author | Camboni, Alessandro |
dc.contributor.author | Comerma Montells, Albert |
dc.contributor.author | Garrido Beltrán, Lluís |
dc.contributor.author | Graciani Díaz, Ricardo |
dc.contributor.author | Graugés Pous, Eugeni |
dc.contributor.author | López Asamar, Elias |
dc.contributor.author | LHCb Collaboration |
dc.date | 2016-06-06T10:41:55Z |
dc.date | 2016-06-06T10:41:55Z |
dc.date | 2013-03-12 |
dc.date | 2016-06-06T10:42:00Z |
dc.identifier.citation | 1126-6708 |
dc.identifier.citation | 628962 |
dc.identifier.uri | http://hdl.handle.net/2445/99264 |
dc.description.abstract | The decay B 0 → DK *0 and the charge conjugate mode are studied using 1.0 fb−1 of pp collision data collected by the LHCb experiment at s√=7s=7 TeV in 2011. The CP asymmetry between the B 0 → DK *0 and the B⎯⎯⎯⎯0→DK⎯⎯⎯⎯∗0B¯0→DK¯∗0 decay rates, with the neutral D meson in the CP-even final state K + K −, is found to be KKd=−0.45±0.23±0.02, AdKK=−0.45±0.23±0.02, where the first uncertainty is statistical and the second is systematic. In addition, favoured B 0 → DK *0 decays are reconstructed with the D meson in the non-CP eigenstate K +π−. The ratio of the B-flavour averaged decay rates in D decays to CP and non-CP eigenstates is measured to be KKd=1.36+0.37−0.32±0.07, RdKK=1.36−0.32+0.37±0.07, where the ratio of the branching fractions of D 0 → K −π+ to D 0 → K + K − decays is included as multiplicative factor. The CP asymmetries measured with two control channels, the favoured B 0 → DK *0 decay with D → K +π− and the B⎯⎯⎯⎯0s→DK∗0B¯s0→DK∗0 decay with D→K + K −, arealsoreported. |
dc.format | application/pdf |
dc.language.iso | eng |
dc.publisher | Springer Verlag |
dc.relation | Reproducció del document publicat a: http://dx.doi.org/10.1007/JHEP03(2013)067 |
dc.relation | Journal of High Energy Physics, 2013, vol. 3, num. 67 |
dc.relation | http://dx.doi.org/10.1007/JHEP03(2013)067 |
dc.rights | cc-by (c) LHCb Collaboration et al., 2013 |
dc.rights | info:eu-repo/semantics/openAccess |
dc.rights | http://creativecommons.org/licenses/by/3.0/es |
dc.subject | Teoria quàntica de camps |
dc.subject | Relativitat (Física) |
dc.subject | Partícules (Física nuclear) |
dc.subject | Quantum field theory |
dc.subject | Relativity (Physics) |
dc.subject | Particles (Nuclear physics) |
dc.title | Measurement of CP observables in B 0 → DK ∗0 with D →K + K − |
dc.type | info:eu-repo/semantics/article |
dc.type | info:eu-repo/semantics/publishedVersion |