Measurement of the D+/- production asymmetry in 7 TeV pp collisions
The asymmetry in the production cross-section \sigma of D+/- mesons, A_P = (\sigma(D+) - \sigma(D-))/(\sigma(D+) + \sigma(D-)), is measured in bins of pseudorapidity \eta and transverse momentum p_T within the acceptance of the LHCb detector. The result is obtained with a sample of D+ -> K_S...
| Những tác giả chính: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Định dạng: | Journal article |
| Được phát hành: |
2012
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| _version_ | 1826303845642272768 |
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| author | collaboration, L Aaij, R Beteta, C Adametz, A Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Cartelle, P Jr, A Amato, S Amhis, Y Anderlini, L Anderson, J Appleby, R Gutierrez, O Archilli, F Artamonov, A Artuso, M |
| author_facet | collaboration, L Aaij, R Beteta, C Adametz, A Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Cartelle, P Jr, A Amato, S Amhis, Y Anderlini, L Anderson, J Appleby, R Gutierrez, O Archilli, F Artamonov, A Artuso, M |
| author_sort | collaboration, L |
| collection | OXFORD |
| description | The asymmetry in the production cross-section \sigma of D+/- mesons, A_P = (\sigma(D+) - \sigma(D-))/(\sigma(D+) + \sigma(D-)), is measured in bins of pseudorapidity \eta and transverse momentum p_T within the acceptance of the LHCb detector. The result is obtained with a sample of D+ -> K_S pi+ decays corresponding to an integrated luminosity of 1.0 fb^-1, collected in pp collisions at a centre of mass energy of 7 TeV at the Large Hadron Collider. When integrated over the kinematic range 2.0 < p_T < 18.0 GeV/c and 2.20 < \eta < 4.75, the production asymmetry is A_P = (-0.96+/-0.26+/-0.18)%. The uncertainties quoted are statistical and systematic, respectively. The result assumes that any direct CP violation in the D+ -> K_S pi+ decay is negligible. No significant dependence on \eta or p_T is observed. |
| first_indexed | 2024-03-07T06:08:53Z |
| format | Journal article |
| id | oxford-uuid:eec94a9f-aaa7-4d80-b672-a76b2d571509 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T06:08:53Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:eec94a9f-aaa7-4d80-b672-a76b2d5715092022-03-27T11:35:31ZMeasurement of the D+/- production asymmetry in 7 TeV pp collisionsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:eec94a9f-aaa7-4d80-b672-a76b2d571509Symplectic Elements at Oxford2012collaboration, LAaij, RBeteta, CAdametz, AAdeva, BAdinolfi, MAdrover, CAffolder, AAjaltouni, ZAlbrecht, JAlessio, FAlexander, MAli, SAlkhazov, GCartelle, PJr, AAmato, SAmhis, YAnderlini, LAnderson, JAppleby, RGutierrez, OArchilli, FArtamonov, AArtuso, MThe asymmetry in the production cross-section \sigma of D+/- mesons, A_P = (\sigma(D+) - \sigma(D-))/(\sigma(D+) + \sigma(D-)), is measured in bins of pseudorapidity \eta and transverse momentum p_T within the acceptance of the LHCb detector. The result is obtained with a sample of D+ -> K_S pi+ decays corresponding to an integrated luminosity of 1.0 fb^-1, collected in pp collisions at a centre of mass energy of 7 TeV at the Large Hadron Collider. When integrated over the kinematic range 2.0 < p_T < 18.0 GeV/c and 2.20 < \eta < 4.75, the production asymmetry is A_P = (-0.96+/-0.26+/-0.18)%. The uncertainties quoted are statistical and systematic, respectively. The result assumes that any direct CP violation in the D+ -> K_S pi+ decay is negligible. No significant dependence on \eta or p_T is observed. |
| spellingShingle | collaboration, L Aaij, R Beteta, C Adametz, A Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Cartelle, P Jr, A Amato, S Amhis, Y Anderlini, L Anderson, J Appleby, R Gutierrez, O Archilli, F Artamonov, A Artuso, M Measurement of the D+/- production asymmetry in 7 TeV pp collisions |
| title | Measurement of the D+/- production asymmetry in 7 TeV pp collisions |
| title_full | Measurement of the D+/- production asymmetry in 7 TeV pp collisions |
| title_fullStr | Measurement of the D+/- production asymmetry in 7 TeV pp collisions |
| title_full_unstemmed | Measurement of the D+/- production asymmetry in 7 TeV pp collisions |
| title_short | Measurement of the D+/- production asymmetry in 7 TeV pp collisions |
| title_sort | measurement of the d production asymmetry in 7 tev pp collisions |
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