Measurement of D0-D0 mixing parameters and search for CP violation using D0 → K+ π- decays.
Measurements of charm mixing parameters from the decay-time-dependent ratio of D0 → K+ π- to D0 → K- π+ rates and the charge-conjugate ratio are reported. The analysis uses data, corresponding to 3 fb(-1) of integrated luminosity, from proton-proton collisions at 7 and 8 TeV center-of-mass energies...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2013
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| _version_ | 1797057188288528384 |
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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 Alvarez Cartelle, P Alves, A Amato, S Amerio, S Amhis, Y Anderlini, L Anderson, J Andreassen, R Andrews, J Appleby, R Aquines Gutierrez, O Archilli, F Artamonov, A Artuso, M |
| author_facet | Aaij, R 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 Andrews, J Appleby, R Aquines Gutierrez, O Archilli, F Artamonov, A Artuso, M |
| author_sort | Aaij, R |
| collection | OXFORD |
| description | Measurements of charm mixing parameters from the decay-time-dependent ratio of D0 → K+ π- to D0 → K- π+ rates and the charge-conjugate ratio are reported. The analysis uses data, corresponding to 3 fb(-1) of integrated luminosity, from proton-proton collisions at 7 and 8 TeV center-of-mass energies recorded by the LHCb experiment. In the limit of charge-parity (CP ) symmetry, the mixing parameters are determined to be x'2=(5.5±4.9)×10(-5), y'=(4.8±1.0)×10(-3), and RD=(3.568±0.066)×10(-3). Allowing for CP violation, the measurement is performed separately for D0 and D0 mesons yielding AD=(-0.7±1.9)%, for the direct CP-violating asymmetry, and 0.75<|q/p|<1.24 at the 68.3% confidence level, for the parameter describing CP violation in mixing. This is the most precise determination of these parameters from a single experiment and shows no evidence for CP violation. |
| first_indexed | 2024-03-06T19:32:42Z |
| format | Journal article |
| id | oxford-uuid:1e027949-1550-4cd0-a5a4-45920b7fecd6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:32:42Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:1e027949-1550-4cd0-a5a4-45920b7fecd62022-03-26T11:14:01ZMeasurement of D0-D0 mixing parameters and search for CP violation using D0 → K+ π- decays.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1e027949-1550-4cd0-a5a4-45920b7fecd6EnglishSymplectic Elements at Oxford2013Aaij, RAdeva, BAdinolfi, MAdrover, CAffolder, AAjaltouni, ZAlbrecht, JAlessio, FAlexander, MAli, SAlkhazov, GAlvarez Cartelle, PAlves, AAmato, SAmerio, SAmhis, YAnderlini, LAnderson, JAndreassen, RAndrews, JAppleby, RAquines Gutierrez, OArchilli, FArtamonov, AArtuso, MMeasurements of charm mixing parameters from the decay-time-dependent ratio of D0 → K+ π- to D0 → K- π+ rates and the charge-conjugate ratio are reported. The analysis uses data, corresponding to 3 fb(-1) of integrated luminosity, from proton-proton collisions at 7 and 8 TeV center-of-mass energies recorded by the LHCb experiment. In the limit of charge-parity (CP ) symmetry, the mixing parameters are determined to be x'2=(5.5±4.9)×10(-5), y'=(4.8±1.0)×10(-3), and RD=(3.568±0.066)×10(-3). Allowing for CP violation, the measurement is performed separately for D0 and D0 mesons yielding AD=(-0.7±1.9)%, for the direct CP-violating asymmetry, and 0.75<|q/p|<1.24 at the 68.3% confidence level, for the parameter describing CP violation in mixing. This is the most precise determination of these parameters from a single experiment and shows no evidence for CP violation. |
| spellingShingle | Aaij, R 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 Andrews, J Appleby, R Aquines Gutierrez, O Archilli, F Artamonov, A Artuso, M Measurement of D0-D0 mixing parameters and search for CP violation using D0 → K+ π- decays. |
| title | Measurement of D0-D0 mixing parameters and search for CP violation using D0 → K+ π- decays. |
| title_full | Measurement of D0-D0 mixing parameters and search for CP violation using D0 → K+ π- decays. |
| title_fullStr | Measurement of D0-D0 mixing parameters and search for CP violation using D0 → K+ π- decays. |
| title_full_unstemmed | Measurement of D0-D0 mixing parameters and search for CP violation using D0 → K+ π- decays. |
| title_short | Measurement of D0-D0 mixing parameters and search for CP violation using D0 → K+ π- decays. |
| title_sort | measurement of d0 d0 mixing parameters and search for cp violation using d0 k π decays |
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