Determination of short- and long-distance contributions in B0 → K[ast]0[mu]+[mu]− decays
An amplitude analysis of the 𝐵0 →𝐾*0𝜇+𝜇− decay is presented. The analysis is based on data collected by the LHCb experiment from proton-proton collisions at √𝑠 =7, 8 and 13 TeV, corresponding to an integrated luminosity of 4.7 fb−1. For the first time, Wilson coefficients and nonlocal hadronic con...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
2024
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| In: |
Physical review
Year: 2024, Volume: 109, Issue: 5, Pages: 1-28 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.109.052009 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.109.052009 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.109.052009 
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| Author Notes: | R. Aaij et al. (LHCb Collaboration*) |
MARC
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| 245 | 1 | 0 | |a Determination of short- and long-distance contributions in B0 → K[ast]0[mu]+[mu]− decays |c R. Aaij et al. (LHCb Collaboration*) |
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| 246 | 3 | 3 | |a Determination of short- and long-distance contributions in B0 → K ast 0 mu + mu − decays |
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| 500 | |a Veröffentlicht: 28. März 2024 | ||
| 500 | |a Im Titel ist sind die Zahlen 0 sowie [ast] und das Plus- und Minuszeichen hochgestellt | ||
| 500 | |a Im Titel ist [ast] als Trophensternchen dargestellt | ||
| 500 | |a *LHCb Collaboration: R. Aaij, S. Bachmann, L. Carus, R. Caspary, C. Cocha Toapaxi, M. De Cian, G. Frau, P.A. Günther, X. Han, S. Hansmann-Menzemer, P. Herrero Gascon, J. Hu, C. Langenbruch, B. Leverington, J. Marks, M.P. Morgenthaler, P.R. Pais, 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 1076 weitere Personen] | ||
| 500 | |a Gesehen am 25.06.2025 | ||
| 520 | |a An amplitude analysis of the 0 →*0+− decay is presented. The analysis is based on data collected by the LHCb experiment from proton-proton collisions at √ =7, 8 and 13 TeV, corresponding to an integrated luminosity of 4.7 fb−1. For the first time, Wilson coefficients and nonlocal hadronic contributions are accessed directly from the unbinned data, where the latter are parametrized as a function of 2 with a polynomial expansion. Wilson coefficients and nonlocal hadronic parameters are determined under two alternative hypotheses: the first relies on experimental information alone, while the second one includes information from theoretical predictions for the nonlocal contributions. Both models obtain similar results for the parameters of interest. The overall level of compatibility with the Standard Model is evaluated to be between 1.8 and 1.9 standard deviations when looking at the 9 Wilson coefficient alone, and between 1.3 and 1.4 standard deviations when considering the full set of 9,10,′9 and ′10 Wilson coefficients. The ranges reflect the theoretical assumptions made in the analysis. | ||
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