Measurement of the CKM angle γ using the B± → D*h± channels
A measurement of the CP-violating observables from B± → D*K± and B± → D*π± decays is presented, where D*(D) is an admixture of D*0 and $$ {\overline{D}}^{\ast 0} $$(D0 and $$ {\overline{D}}^0 $$) states and is reconstructed through the decay chains D* → Dπ0/γ and $$ D\to {K}_S^0{\pi}^{+}{\pi}^{-}/{K...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
01 December 2023
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| In: |
Journal of high energy physics
Year: 2023, Issue: 12, Pages: 1-32 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP12(2023)013 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1007/JHEP12(2023)013
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| Author Notes: | The LHCb collaboration* |
MARC
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| 245 | 1 | 0 | |a Measurement of the CKM angle γ using the B± → D*h± channels |c The LHCb collaboration* |
| 246 | 3 | 3 | |a Measurement of the CKM angle gamma using the B + - → D * h + - channels |
| 264 | 1 | |c 01 December 2023 | |
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| 500 | |a *The LHCb collaboration: R. Aaij, S. Bachmann, D. Berninghoff, M. Borsato, L. Carus, R. Caspary, C. Cocha Toapaxi, M. De Cian, G. Frau, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, R. Kopecna, C. Langenbruch, B. Leverington, J. Marks, M.P. Morgenthaler, P.R. Pais, G. Tuci, D.J. Unverzagt, U. Uwer, C. Wang, L. Witola, Y. Zhao, A. Zhelezov [und sehr viele weitere Personen] | ||
| 500 | |a Im Titel sind das Plus-, Minus- und Asterix-Zeichen hochgestellt | ||
| 500 | |a Gesehen am 03.07.2024 | ||
| 520 | |a A measurement of the CP-violating observables from B± → D*K± and B± → D*π± decays is presented, where D*(D) is an admixture of D*0 and $$ {\overline{D}}^{\ast 0} $$(D0 and $$ {\overline{D}}^0 $$) states and is reconstructed through the decay chains D* → Dπ0/γ and $$ D\to {K}_S^0{\pi}^{+}{\pi}^{-}/{K}_S^0{K}^{+}{K}^{-} $$. The measurement is performed by analysing the signal yield variation across the D decay phase space and is independent of any amplitude model. The data sample used was collected by the LHCb experiment in proton-proton collisions and corresponds to a total integrated luminosity of 9 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV. The CKM angle γ is determined to be $$ {\left({69}_{-14}^{+13}\right)}^{\circ } $$using the measured CP-violating observables. The hadronic parameters $$ {r}_B^{D^{\ast }{K}^{\pm }},{r}_B^{D^{\ast }{\pi}^{\pm }},{\delta}_B^{D^{\ast }{K}^{\pm }},{\delta}_B^{D^{\ast }{\pi}^{\pm }} $$, which are the ratios and strong phase differences between favoured and suppressed B± decays, are also reported. | ||
| 650 | 4 | |a B Physics | |
| 650 | 4 | |a CKM Angle Gamma | |
| 650 | 4 | |a CP Violation | |
| 650 | 4 | |a Hadron-Hadron Scattering | |
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