First measurement of time-dependent CP violation in B0 → K+K- decays
Direct and mixing-induced CP-violating asymmetries in B0 s → K+K- decays are measured for the first time using a data sample of pp collisions, corresponding to an integrated luminosity of 1.0 fb-1, collected with the LHCb detector at a centre-of-mass energy of 7TeV. The results are CKK = 0.14 ± 0.11...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
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2013
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| _version_ | 1826278269137190912 |
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| author | Aaij, R Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Cartelle, P Alves, A Alves, A Amato, S Amerio, S Amhis, Y Anderlini, L Anderlini, L Anderson, J Andreassen, R Andrews, J Appleby, R Gutierrez, O Archilli, F |
| author_facet | Aaij, R Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Cartelle, P Alves, A Alves, A Amato, S Amerio, S Amhis, Y Anderlini, L Anderlini, L Anderson, J Andreassen, R Andrews, J Appleby, R Gutierrez, O Archilli, F |
| author_sort | Aaij, R |
| collection | OXFORD |
| description | Direct and mixing-induced CP-violating asymmetries in B0 s → K+K- decays are measured for the first time using a data sample of pp collisions, corresponding to an integrated luminosity of 1.0 fb-1, collected with the LHCb detector at a centre-of-mass energy of 7TeV. The results are CKK = 0.14 ± 0.11 ± 0.03 and SKK = 0.30 ± 0.12 ± 0.04, where the first uncertainties are statistical and the second systematic. The corresponding quantities are also determined for B0→π +π- decays to be Cππ = -0.38±0.15±0.02 and Sππ = -0.71±0. 13±0.02, in good agreement with existing measurements. |
| first_indexed | 2024-03-06T23:41:25Z |
| format | Journal article |
| id | oxford-uuid:6f7240f7-537b-4d9d-906f-a29a2fba04ed |
| institution | University of Oxford |
| last_indexed | 2024-03-06T23:41:25Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:6f7240f7-537b-4d9d-906f-a29a2fba04ed2022-03-26T19:30:46ZFirst measurement of time-dependent CP violation in B0 → K+K- decaysJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6f7240f7-537b-4d9d-906f-a29a2fba04edSymplectic Elements at Oxford2013Aaij, RAdeva, BAdinolfi, MAdrover, CAffolder, AAjaltouni, ZAlbrecht, JAlessio, FAlexander, MAli, SAlkhazov, GCartelle, PAlves, AAlves, AAmato, SAmerio, SAmhis, YAnderlini, LAnderlini, LAnderson, JAndreassen, RAndrews, JAppleby, RGutierrez, OArchilli, FDirect and mixing-induced CP-violating asymmetries in B0 s → K+K- decays are measured for the first time using a data sample of pp collisions, corresponding to an integrated luminosity of 1.0 fb-1, collected with the LHCb detector at a centre-of-mass energy of 7TeV. The results are CKK = 0.14 ± 0.11 ± 0.03 and SKK = 0.30 ± 0.12 ± 0.04, where the first uncertainties are statistical and the second systematic. The corresponding quantities are also determined for B0→π +π- decays to be Cππ = -0.38±0.15±0.02 and Sππ = -0.71±0. 13±0.02, in good agreement with existing measurements. |
| spellingShingle | Aaij, R Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Cartelle, P Alves, A Alves, A Amato, S Amerio, S Amhis, Y Anderlini, L Anderlini, L Anderson, J Andreassen, R Andrews, J Appleby, R Gutierrez, O Archilli, F First measurement of time-dependent CP violation in B0 → K+K- decays |
| title | First measurement of time-dependent CP violation in B0 → K+K- decays |
| title_full | First measurement of time-dependent CP violation in B0 → K+K- decays |
| title_fullStr | First measurement of time-dependent CP violation in B0 → K+K- decays |
| title_full_unstemmed | First measurement of time-dependent CP violation in B0 → K+K- decays |
| title_short | First measurement of time-dependent CP violation in B0 → K+K- decays |
| title_sort | first measurement of time dependent cp violation in b0 k k decays |
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