Measurement of the CKM angle γ in B± → DK[ast](892)± decays
Measurements of CP observables and the CKM angle γ are performed in B± → DK∗(892)± decays, where D represents a superposition of D0 and D0 states, using the LHCb dataset collected during Run 1 (2011–2012) and Run 2 (2015–2018). A study of this channel is presented with the D meson reconstructed in t...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
February 18, 2025
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| In: |
Journal of high energy physics
Year: 2025, Heft: 2, Pages: 1-36 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP02(2025)113 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1007/JHEP02(2025)113 Verlag, kostenfrei, Volltext: https://link.springer.com/article/10.1007/JHEP02(2025)113 |
| Verfasserangaben: | The LHCb collaboration |
| Zusammenfassung: | Measurements of CP observables and the CKM angle γ are performed in B± → DK∗(892)± decays, where D represents a superposition of D0 and D0 states, using the LHCb dataset collected during Run 1 (2011–2012) and Run 2 (2015–2018). A study of this channel is presented with the D meson reconstructed in two-body final states K±π∓, K+K− and π+π−; four-body final states K±π∓π±π∓ and π+π−π+π−; and three-body final states K0 Sπ+π− and K0 SK+K−. This analysis includes the first observation of the suppressed B± → [π±K∓]DK∗± and B± → [π±K∓π±π∓]DK∗± decays. The combined result gives γ = (63 ± 13)◦. |
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| Beschreibung: | The LHCb collaboration: R. Aaij, S. Bachmann, L. Carus, R. Caspary, S. Celani, C.E. Cocha Toapaxi, M. De Cian, L. Dittmann, S. Esen, F. Glaser, P.A. Günther, X. Han, S. Hausmann-Menzemer, P. Herrero Gascon, J. Hu, C. Langenbruch, B. Leverington, J. Marks, M.P. Morgenthaler, P.R. Pais, S.R. Roy, M. Ruiz Diaz, M. Schmelling, G. Tuci, L.H. Uecker, D.J. Unverzagt, U. Uwer, C. Wang, L. Witola, M. Zavertyaev, Y. Zhao, A. Zhelezov und weitere 1099 Im Titel sind die Zeichen "±" und [ast] hochgestellt Im Titel ist [ast] als Tropfensternchen (englisch: teardrop-spoked asterisk) dargestellt Gesehen am 20.10.2025 |
| Beschreibung: | Online Resource |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP02(2025)113 |