Amplitude analysis and branching fraction measurement of B+ → D∗−D+ s π+ decays
The decays of the B+ meson to the final state D∗−D+ s π+ are studied in protonproton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13TeV, corresponding to a total integrated luminosity of 9 fb−1. The ratio of branching fractions of the B+ → D∗−D+ s π+ and B0...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
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21 August 2024
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| In: |
Journal of high energy physics
Year: 2024, Heft: 8, Pages: 1-40 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP08(2024)165 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1007/JHEP08(2024)165
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| Verfasserangaben: | The LHCb collaboration* |
MARC
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| 245 | 1 | 0 | |a Amplitude analysis and branching fraction measurement of B+ → D∗−D+ s π+ decays |c The LHCb collaboration* |
| 246 | 3 | 3 | |a Amplitude analysis and branching fraction measurement of B + → D ∗ − D + s pi + decays |
| 264 | 1 | |c 21 August 2024 | |
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| 500 | |a *The LHCb collaboration: R. Aaij, S. Bachmann, L. Carus, R. Caspary, S. Celani, C. Cocha Toapaxi, M. De Cian, L. Dittmann, S. Esen, G. Frau, P.A. Günther, X. Han, S. Hansmann-Menzemer, P. Herrero Gascon, C. Langenbruch, B. Leverington, J. Marks, M.P. Morgenthaler, S.R. Roy, M. Ruiz Diaz, G. Tuci, L.H. Uecker, D.J. Unverzagt, U. Uwer, L. Witola, Y. Zhao, A. Zhelezov [und sehr viele weitere Personen] | ||
| 500 | |a Gesehen am 10.09.2025 | ||
| 500 | |a Im Titel sind die Pluszeichen, das Minuszeichen und das Tropfensternchen [ast] hochgestellt sowie der Buchstabe "s" tiefgestellt | ||
| 520 | |a The decays of the B+ meson to the final state D∗−D+ s π+ are studied in protonproton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13TeV, corresponding to a total integrated luminosity of 9 fb−1. The ratio of branching fractions of the B+ → D∗−D+ s π+ and B0 → D∗−D+ s decays is measured to be 0.173 ± 0.006 ± 0.010, where the first uncertainty is statistical and the second is systematic. Using partially reconstructed D∗+ s → D+ s γ and D+ s π0 decays, the ratio of branching fractions between the B+ → D∗−D∗+ s π+ and B+ → D∗−D+ s π+ decays is determined as 1.31±0.07±0.14. An amplitude analysis of the B+ → D∗−D+ s π+ decay is performed for the first time, revealing dominant contributions from known excited charm resonances decaying to the D∗−π+ final state. No significant evidence of exotic contributions in the D+ s π+ or D∗−D+ s channels is found. The fit fraction of the scalar state T∗ c¯s0(2900)++ observed in the B+ → D−D+ s π+ decay is determined to be less than 2.3% at a 90% confidence level. | ||
| 650 | 4 | |a Branching fraction | |
| 650 | 4 | |a Charm Physics | |
| 650 | 4 | |a Hadron-Hadron Scattering | |
| 650 | 4 | |a Spectroscopy | |
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