Measurement of the ratio of branching fractions of the decays [lambda] 0b→[psi] (2S) [lambda] and [lambda] 0b→J/[psi lambda]
Using pp collisions corresponding to 3 fb−1 integrated luminosity, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, the ratio of branching fractions B(Λ0b→ψ(2S)Λ)/B(Λ0b→J/ψΛ)=0.513±0.023(stat)±0.016(syst)±0.011(B)B(Λb0→ψ(2S)Λ)/B(Λb0→J/ψΛ)=0.513±0.023(stat)±0.016(syst)±0.011...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
22 March 2019
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| In: |
Journal of high energy physics
Year: 2019, Heft: 3 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP03(2019)126 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1007/JHEP03(2019)126
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| Verfasserangaben: | the LHCb Collaboration: R. Aaij, S. Bachmann, D. Berninghoff, S. Braun, A. Comerma-Montells, P. D'Argent, M. De Cian, M. Dziewiecki, D. Gerick, J. Grabowski, X. Han, S. Hansmann-Menzemer, M. Kecke, B. Khanji, M. Kolpin, R. Kopecna, B. Leverington, J. Marks, D.S. Mitzel, S. Neubert, M. Neuner, T. Nikodem, A. Piucci, M. Stahl, S. Stemmle, U. Uwer, A. Zhelezov [und 776 weitere] |
MARC
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| 245 | 1 | 0 | |a Measurement of the ratio of branching fractions of the decays [lambda] 0b→[psi] (2S) [lambda] and [lambda] 0b→J/[psi lambda] |c the LHCb Collaboration: R. Aaij, S. Bachmann, D. Berninghoff, S. Braun, A. Comerma-Montells, P. D'Argent, M. De Cian, M. Dziewiecki, D. Gerick, J. Grabowski, X. Han, S. Hansmann-Menzemer, M. Kecke, B. Khanji, M. Kolpin, R. Kopecna, B. Leverington, J. Marks, D.S. Mitzel, S. Neubert, M. Neuner, T. Nikodem, A. Piucci, M. Stahl, S. Stemmle, U. Uwer, A. Zhelezov [und 776 weitere] |
| 246 | 3 | 0 | |a Λb0 → ψ(2S)Λ Λb0 → J/ψΛ |
| 246 | 3 | 3 | |a Measurement of the ratio of branching fractions of the decays lambda0b → psi(2S) lambda and lambda0b → J/psi lambda |
| 264 | 1 | |c 22 March 2019 | |
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| 500 | |a Gesehen am 16.07.2019 | ||
| 500 | |a Die 0 ist im Titel hochgestellt, das b ist tiefgestellt | ||
| 500 | |a Im Titel werden Lambda und psi als griechische Buchstaben dargestellt | ||
| 520 | |a Using pp collisions corresponding to 3 fb−1 integrated luminosity, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, the ratio of branching fractions B(Λ0b→ψ(2S)Λ)/B(Λ0b→J/ψΛ)=0.513±0.023(stat)±0.016(syst)±0.011(B)B(Λb0→ψ(2S)Λ)/B(Λb0→J/ψΛ)=0.513±0.023(stat)±0.016(syst)±0.011(B) \mathrm{\mathcal{B}}\left({\Lambda}_b^0\to \psi (2S)\Lambda \right)/\mathrm{\mathcal{B}}\left({\Lambda}_b^0\to J/\psi \Lambda \right)=0.513\pm 0.023\left(\mathrm{stat}\right)\pm 0.016\left(\mathrm{syst}\right)\pm 0.011\left(\mathrm{\mathcal{B}}\right) is determined. The first uncertainty is statistical, the second is systematic and the third is due to the external branching fractions used. Open image in new window | ||
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| 650 | 4 | |a Branching fraction | |
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