First observation of CP violation in the decays of B(s)0 mesons.
Using pp collision data corresponding to an integrated luminosity of 1.0 fb(-1) and collected by LHCb in 2011 at a center-of-mass energy of 7 TeV, we report the measurement of direct CP violation in B(s)(0)→K(-)π(+) decays, A(CP)(B(s)(0)→K(-)π(+)=0.27±0.04 (stat)±0.01 (syst), with significance excee...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2013
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| _version_ | 1826268927373606912 |
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| author | Aaij, R Abellan Beteta, C Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Alvarez Cartelle, P Alves, A Amato, S Amerio, S Amhis, Y Anderlini, L Anderson, J Andreassen, R Appleby, R Aquines Gutierrez, O Archilli, F Artamonov, A Artuso, M |
| author_facet | Aaij, R Abellan Beteta, C Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Alvarez Cartelle, P Alves, A Amato, S Amerio, S Amhis, Y Anderlini, L Anderson, J Andreassen, R Appleby, R Aquines Gutierrez, O Archilli, F Artamonov, A Artuso, M |
| author_sort | Aaij, R |
| collection | OXFORD |
| description | Using pp collision data corresponding to an integrated luminosity of 1.0 fb(-1) and collected by LHCb in 2011 at a center-of-mass energy of 7 TeV, we report the measurement of direct CP violation in B(s)(0)→K(-)π(+) decays, A(CP)(B(s)(0)→K(-)π(+)=0.27±0.04 (stat)±0.01 (syst), with significance exceeding 5 standard deviations. This is the first observation of CP violation in the decays of B(s)(0) mesons. Furthermore, we provide an improved determination of direct CP violation in B(0)→K(+)π(-) decays, A(CP)(B(0)→K(+)π(-)=-0.080±0.007 (stat)±0.003 (syst), which is the most precise measurement of this quantity to date. |
| first_indexed | 2024-03-06T21:17:03Z |
| format | Journal article |
| id | oxford-uuid:4020e693-01ae-43b4-b8dd-819093c97e56 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:17:03Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:4020e693-01ae-43b4-b8dd-819093c97e562022-03-26T14:36:13ZFirst observation of CP violation in the decays of B(s)0 mesons.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:4020e693-01ae-43b4-b8dd-819093c97e56EnglishSymplectic Elements at Oxford2013Aaij, RAbellan Beteta, CAdeva, BAdinolfi, MAdrover, CAffolder, AAjaltouni, ZAlbrecht, JAlessio, FAlexander, MAli, SAlkhazov, GAlvarez Cartelle, PAlves, AAmato, SAmerio, SAmhis, YAnderlini, LAnderson, JAndreassen, RAppleby, RAquines Gutierrez, OArchilli, FArtamonov, AArtuso, MUsing pp collision data corresponding to an integrated luminosity of 1.0 fb(-1) and collected by LHCb in 2011 at a center-of-mass energy of 7 TeV, we report the measurement of direct CP violation in B(s)(0)→K(-)π(+) decays, A(CP)(B(s)(0)→K(-)π(+)=0.27±0.04 (stat)±0.01 (syst), with significance exceeding 5 standard deviations. This is the first observation of CP violation in the decays of B(s)(0) mesons. Furthermore, we provide an improved determination of direct CP violation in B(0)→K(+)π(-) decays, A(CP)(B(0)→K(+)π(-)=-0.080±0.007 (stat)±0.003 (syst), which is the most precise measurement of this quantity to date. |
| spellingShingle | Aaij, R Abellan Beteta, C Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Alvarez Cartelle, P Alves, A Amato, S Amerio, S Amhis, Y Anderlini, L Anderson, J Andreassen, R Appleby, R Aquines Gutierrez, O Archilli, F Artamonov, A Artuso, M First observation of CP violation in the decays of B(s)0 mesons. |
| title | First observation of CP violation in the decays of B(s)0 mesons. |
| title_full | First observation of CP violation in the decays of B(s)0 mesons. |
| title_fullStr | First observation of CP violation in the decays of B(s)0 mesons. |
| title_full_unstemmed | First observation of CP violation in the decays of B(s)0 mesons. |
| title_short | First observation of CP violation in the decays of B(s)0 mesons. |
| title_sort | first observation of cp violation in the decays of b s 0 mesons |
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