Measurement of CP asymmetries and branching fraction ratios of B− decays to two charm mesons
Abstract The CP asymmetries of seven B− decays to two charm mesons are measured using data corresponding to an integrated luminosity of 9 fb−1 of proton-proton collisions collected by the LHCb experiment. Decays involving a D*0 or...
| Main Authors: | , , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2023
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| Online Access: | https://hdl.handle.net/1721.1/152403 |
| _version_ | 1811096303632908288 |
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| author | Aaij, R. Abdelmotteleb, A. S. W. Abellan Beteta, C. Abudinén, F. Ackernley, T. Adeva, B. Adinolfi, M. Adlarson, P. Afsharnia, H. Agapopoulou, C. Aidala, C. A. Ajaltouni, Z. Akar, S. Akiba, K. Albicocco, P. Albrecht, J. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Aaij, R. Abdelmotteleb, A. S. W. Abellan Beteta, C. Abudinén, F. Ackernley, T. Adeva, B. Adinolfi, M. Adlarson, P. Afsharnia, H. Agapopoulou, C. Aidala, C. A. Ajaltouni, Z. Akar, S. Akiba, K. Albicocco, P. Albrecht, J. |
| author_sort | Aaij, R. |
| collection | MIT |
| description | Abstract
The CP asymmetries of seven B− decays to two charm mesons are measured using data corresponding to an integrated luminosity of 9 fb−1 of proton-proton collisions collected by the LHCb experiment. Decays involving a D*0 or
D
s
∗
−
$$ {D}_s^{\ast -} $$
meson are analysed by reconstructing only the D0 or
D
s
−
$$ {D}_s^{-} $$
decay products. This paper presents the first measurement of
A
$$ \mathcal{A} $$
CP(B− →
D
s
∗
−
$$ {D}_s^{\ast -} $$
D0) and
A
$$ \mathcal{A} $$
CP(B− →
D
s
−
$$ {D}_s^{-} $$
D∗0), and the most precise measurement of the other five CP asymmetries. There is no evidence of CP violation in any of the analysed decays. Additionally, two ratios between branching fractions of selected decays are measured. |
| first_indexed | 2024-09-23T16:41:46Z |
| format | Article |
| id | mit-1721.1/152403 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T16:41:46Z |
| publishDate | 2023 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1524032024-01-31T21:32:35Z Measurement of CP asymmetries and branching fraction ratios of B− decays to two charm mesons Aaij, R. Abdelmotteleb, A. S. W. Abellan Beteta, C. Abudinén, F. Ackernley, T. Adeva, B. Adinolfi, M. Adlarson, P. Afsharnia, H. Agapopoulou, C. Aidala, C. A. Ajaltouni, Z. Akar, S. Akiba, K. Albicocco, P. Albrecht, J. Massachusetts Institute of Technology. Department of Physics Abstract The CP asymmetries of seven B− decays to two charm mesons are measured using data corresponding to an integrated luminosity of 9 fb−1 of proton-proton collisions collected by the LHCb experiment. Decays involving a D*0 or D s ∗ − $$ {D}_s^{\ast -} $$ meson are analysed by reconstructing only the D0 or D s − $$ {D}_s^{-} $$ decay products. This paper presents the first measurement of A $$ \mathcal{A} $$ CP(B− → D s ∗ − $$ {D}_s^{\ast -} $$ D0) and A $$ \mathcal{A} $$ CP(B− → D s − $$ {D}_s^{-} $$ D∗0), and the most precise measurement of the other five CP asymmetries. There is no evidence of CP violation in any of the analysed decays. Additionally, two ratios between branching fractions of selected decays are measured. 2023-10-10T18:49:12Z 2023-10-10T18:49:12Z 2023-09-28 2023-10-08T03:12:11Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/152403 Journal of High Energy Physics. 2023 Sep 28;2023(9):202 PUBLISHER_CC en https://doi.org/10.1007/JHEP09(2023)202 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Aaij, R. Abdelmotteleb, A. S. W. Abellan Beteta, C. Abudinén, F. Ackernley, T. Adeva, B. Adinolfi, M. Adlarson, P. Afsharnia, H. Agapopoulou, C. Aidala, C. A. Ajaltouni, Z. Akar, S. Akiba, K. Albicocco, P. Albrecht, J. Measurement of CP asymmetries and branching fraction ratios of B− decays to two charm mesons |
| title | Measurement of CP asymmetries and branching fraction ratios of B− decays to two charm mesons |
| title_full | Measurement of CP asymmetries and branching fraction ratios of B− decays to two charm mesons |
| title_fullStr | Measurement of CP asymmetries and branching fraction ratios of B− decays to two charm mesons |
| title_full_unstemmed | Measurement of CP asymmetries and branching fraction ratios of B− decays to two charm mesons |
| title_short | Measurement of CP asymmetries and branching fraction ratios of B− decays to two charm mesons |
| title_sort | measurement of cp asymmetries and branching fraction ratios of b decays to two charm mesons |
| url | https://hdl.handle.net/1721.1/152403 |
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