Measurement of the branching fraction ratios R(D+) and R(D[ast]+) using muonic τ decays
The branching fraction ratios of ¯𝐵0→𝐷+𝜏−¯𝜈𝜏 and ¯𝐵0→𝐷*+𝜏−¯𝜈𝜏 decays are measured with respect to their muonic counterparts, using a data sample corresponding to an integrated luminosity of 2.0 fb−1 collected by the LHCb experiment in proton-proton collisions at √𝑠 =13 TeV. The reconstructed fin...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
10 February 2025
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| In: |
Physical review letters
Year: 2025, Jahrgang: 134, Heft: 6, Pages: 1-13 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.134.061801 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevLett.134.061801 Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.134.061801 
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| Verfasserangaben: | R. Aaij et al., (LHCb Collaboration) |
MARC
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| 245 | 1 | 0 | |a Measurement of the branching fraction ratios R(D+) and R(D[ast]+) using muonic τ decays |c R. Aaij et al., (LHCb Collaboration) |
| 246 | 3 | 0 | |a * |
| 246 | 3 | 3 | |a Measurement of the branching fraction ratios R(D +) and R(D *+) using muonic tau decays |
| 246 | 3 | 3 | |a Measurement of the branching fraction ratios R(D plus ) and R(D[ast] plus ) using muonic tau decays |
| 264 | 1 | |c 10 February 2025 | |
| 300 | |b Illustrationen | ||
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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, F.C. Glaser, P.A. Günther, X. Han, S. Hausmann-Menzemer, P. Herrero Gascon, J. Hu, J. Kubat, 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 1053 | ||
| 500 | |a Im Titel sind die Zeichen "+" und "[ast]" hochgestellt | ||
| 500 | |a Im Titel ist [ast] als Tropfensternchen (englisch: teardrop-spoked asterisk) dargestellt | ||
| 500 | |a Gesehen am 20.10.2025 | ||
| 520 | |a The branching fraction ratios of ¯0→+−¯ and ¯0→*+−¯ decays are measured with respect to their muonic counterparts, using a data sample corresponding to an integrated luminosity of 2.0 fb−1 collected by the LHCb experiment in proton-proton collisions at √ =13 TeV. The reconstructed final states are formed by combining + mesons with −→−¯ candidates, where the + is reconstructed via the + →−++ decay. The results are (+)=0.249±0.043±0.047, (*+)=0.402±0.081±0.085, where the first uncertainties are statistical and the second systematic. The two measurements have a correlation coefficient of −0.39 and are compatible with the standard model. | ||
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