A search for direct CP violation in D0 →h-h+ (where h = K or π) is presented using data corresponding to an integrated luminosity of 1.0fb-1 collected in 2011 by LHCb in pp collisions at a centre-of-mass energy of 7 TeV. The analysis uses D0 mesons produced in inclusive semileptonic b-hadron decays to the D0μX nal state, where the charge of the accompanying muon is used to tag the avour of the D0 meson. The difference in the CP-violating asymmetries between the two decay channels is measured to be ΔACP = ACP(K-K+) - ACP ( π-π+) = ( 0.49 ±0.30 (stat)± 0.14 (syst))%. This result does not conrm the evidence for direct CP violationinthecharmsectorreportedinother analyses. © 2013 CERN.

Search for direct CP violation in D0→h-h+ modes using semileptonic B decays / Aaij, R., Abellan Beteta, C., Adeva, B., Adinol, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., Anderlini, L., Anderson, J., Andreassen, R., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 723:1-3(2013), pp. 33-43. [10.1016/j.physletb.2013.04.061]

Search for direct CP violation in D0→h-h+ modes using semileptonic B decays

Bizzeti A.;
2013

Abstract

A search for direct CP violation in D0 →h-h+ (where h = K or π) is presented using data corresponding to an integrated luminosity of 1.0fb-1 collected in 2011 by LHCb in pp collisions at a centre-of-mass energy of 7 TeV. The analysis uses D0 mesons produced in inclusive semileptonic b-hadron decays to the D0μX nal state, where the charge of the accompanying muon is used to tag the avour of the D0 meson. The difference in the CP-violating asymmetries between the two decay channels is measured to be ΔACP = ACP(K-K+) - ACP ( π-π+) = ( 0.49 ±0.30 (stat)± 0.14 (syst))%. This result does not conrm the evidence for direct CP violationinthecharmsectorreportedinother analyses. © 2013 CERN.
2013
723
1-3
33
43
Search for direct CP violation in D0→h-h+ modes using semileptonic B decays / Aaij, R., Abellan Beteta, C., Adeva, B., Adinol, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., Anderlini, L., Anderson, J., Andreassen, R., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 723:1-3(2013), pp. 33-43. [10.1016/j.physletb.2013.04.061]
Aaij, R.; Abellan Beteta, C.; Adeva, B.; Adinol, M.; Adrover, C.; Affolder, A.; Ajaltouni, Z.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkh...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1210292
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