Measurement of CP asymmetries and branching fraction ratios of B- decays to two charm mesons
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 meson are analysed by reconstructing only the D0 or D− s decay products....
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
28 September 2023
|
| In: |
Journal of high energy physics
Year: 2023, Heft: 9, Pages: 1-30 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP09(2023)202 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1007/JHEP09(2023)202 |
| Verfasserangaben: | The LHCb collaboration* |
| Zusammenfassung: | 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 meson are analysed by reconstructing only the D0 or D− s decay products. This paper presents the first measurement of ACP (B− → D∗− s D0) and ACP (B− → 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. |
|---|---|
| Beschreibung: | *The LHCb collaboration: R. Aaij, S. Bachmann, D. Berninghoff, M. Borsato, L. Carus, R. Caspary, M. De Cian, G. Frau, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, R. Kopecna, B. Leverington, J. Marks, M.P. Morgenthaler, G. Tuci, D.J. Unverzagt, U. Uwer, C. Witola, Y. Zhao, A. Zhelezov (und sehr viele weitere Personen) Im Titel ist das Minuszeichen hochgestellt Gesehen am 22.05.2024 |
| Beschreibung: | Online Resource |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP09(2023)202 |