Amplitude analysis and branching fraction measurement of B[bar]0s → J/ψK+K-
An amplitude analysis of the final state structure in the B̄0s→J/ψK+K− decay mode is performed using 1.0 fb−1 of data collected by the LHCb experiment in 7 TeV center-of-mass energy pp collisions produced by the LHC. A modified Dalitz plot analysis of the final state is performed using both the inva...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
8 April 2013
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| In: |
Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2013, Volume: 87, Issue: 7, Pages: 1-23 |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.87.072004 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.87.072004 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.87.072004 
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| Author Notes: | R. Aaij et al. (LHCb Collaboration) |
MARC
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| 245 | 1 | 0 | |a Amplitude analysis and branching fraction measurement of B[bar]0s → J/ψK+K- |c R. Aaij et al. (LHCb Collaboration) |
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| 246 | 3 | 3 | |a Amplitude analysis and branching fraction measurement of B bar zero s → J/ psi K plus K minus |
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| 500 | |a Im Titel steht der Buchstabe B mit einem Oberstrich | ||
| 500 | |a Im Titel sind "0", "+" und "-" hochgestellt und "s" in B[bar]0s tiefgestellt | ||
| 500 | |a LHCb Collaboration: R. Aaij, A. Adametz, O. Aquines Gutierrez, S. Bachmann, A. Bien, J. Blouw, M. Britsch, A. Di Canto, F. Dordei, C. Färber, M. Fontana, E. Gersabeck, S. Hansmann-Menzemer, T. Hartmann, A. Jaeger, K. Kreplin, G. Krocker, C. Linn, J. Marks, M. Meissner, T. Nikodem, D. Popov, M. Schmelling, P. Seyfert, S. Stahl, J. van Tilburg, U. Uwer, D. Volyanskyy, C. Voß, H. Voss, R. Waldi, S. Wandernoth, D. Wiedner, M. Zavertyaev, A. Zhelezov und weitere 591 | ||
| 500 | |a Gesehen am 22.03.2021 | ||
| 520 | |a An amplitude analysis of the final state structure in the B̄0s→J/ψK+K− decay mode is performed using 1.0 fb−1 of data collected by the LHCb experiment in 7 TeV center-of-mass energy pp collisions produced by the LHC. A modified Dalitz plot analysis of the final state is performed using both the invariant mass spectra and the decay angular distributions. Resonant structures are observed in the K+K− mass spectrum as well as a significant nonresonant S-wave contribution over the entire K+K− mass range. The largest resonant component is the ϕ(1020), accompanied by f0(980), f′2(1525), and four additional resonances. The overall branching fraction is measured to be B(B̄0s→J/ψK+K−)=(7.70±0.08±0.39±0.60)×10−4, where the first uncertainty is statistical, the second systematic, and the third due to the ratio of the number of B̄0s to B− mesons produced. The mass and width of the f′2(1525) are measured to be 1522.2±2.8+5.3−2.0 MeV and 84±6+10−5 MeV, respectively. The final state fractions of the other resonant states are also reported. | ||
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