Branching fraction measurement of the decay π΅+ βπβ‘(2β’π)β’πβ‘(1020)β’πΎ+
The branching fraction of the decay π΅+ βπβ‘(2β’π)β’πβ‘(1020)β’πΎ+, relative to the topologically similar decay π΅+ βπ½/πβ’πβ‘(1020)β’πΎ+, is measured using proton-proton collision data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
13 May, 2025
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| In: |
Physical review
Year: 2025, Volume: 111, Issue: 9, Pages: 1-15 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.111.092008 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevD.111.092008 Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.111.092008 |
| Author Notes: | R. Aaij et al.* (LHCb Collaboration) |
| Summary: | The branching fraction of the decay π΅+ βπβ‘(2β’π)β’πβ‘(1020)β’πΎ+, relative to the topologically similar decay π΅+ βπ½/πβ’πβ‘(1020)β’πΎ+, is measured using proton-proton collision data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fbβ1. The ratio is found to be 0.061 Β±0.004 Β±0.009, where the first uncertainty is statistical and the second systematic. Using the world-average branching fraction for π΅+ βπ½/πβ’πβ‘(1020)β’πΎ+, the branching fraction for the decay π΅+ βπβ‘(2β’π)β’πβ‘(1020)β’πΎ+ is found to be (3.0 Β±0.2 Β±0.5 Β±0.2) Γ10β6, where the first uncertainty is statistical, the second systematic, and the third is due to the branching fraction of the normalization channel. |
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| Item Description: | Im Text ist "+" jeweils hochgestellt LHCb Collaboration: R. Aaij, S. Bachmann, L. Carus, R. Caspary, S. Celani, C. Cocha Toapaxi, M. De Cian, L. Dittmann, S. Esen, F.C. Glaser, P.βA. GuΜnther, 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, C. Wang, L. Witola, Y. Zhao, A. Zhelezov [und viele weitere] Gesehen am 03.12.2025 |
| Physical Description: | Online Resource |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.111.092008 |