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Determination of short- and long-distance contributions in B0 → K[ast]0[mu]+[mu]− decays

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An amplitude analysis of the 𝐵0 →𝐾*0⁢𝜇+⁢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: Aaij, Roel (Author) , Bachmann, Sebastian (Author) , Carus, Leon (Author) , Caspary, Rowina (Author) , Cocha Toapaxi, Carlos (Author) , De Cian, Michel (Author) , Frau, Giulia (Author) , Günther, Paul André (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Herrero Gascón, Paula (Author) , Hu, Jiangqiao (Author) , Langenbruch, Christoph (Author) , Leverington, Blake (Author) , Marks, Jörg (Author) , Morgenthaler, Maurice Pierre (Author) , Pais, Preema (Author) , Roy, Shreya (Author) , Ruiz Diaz, Miguel (Author) , Tuci, Giulia (Author) , Uecker, Lennart Henning (Author) , Unverzagt, Daniel Joachim (Author) , Uwer, Ulrich (Author) , Wang, Chishuai (Author) , Witola, Lukas (Author) , Zhao, Ya (Author) , Zhelezov, Alexey (Author)
Corporate Author: LHCb Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 2024
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*)
Description
Summary:An amplitude analysis of the 𝐵0 →𝐾*0⁢𝜇+⁢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 contributions are accessed directly from the unbinned data, where the latter are parametrized as a function of 𝑞2 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 𝒞9 Wilson coefficient alone, and between 1.3 and 1.4 standard deviations when considering the full set of 𝒞9,𝒞10,𝒞′9 and 𝒞′10 Wilson coefficients. The ranges reflect the theoretical assumptions made in the analysis.
Item Description:Veröffentlicht: 28. März 2024
Im Titel ist sind die Zahlen 0 sowie [ast] und das Plus- und Minuszeichen hochgestellt
Im Titel ist [ast] als Trophensternchen dargestellt
*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]
Gesehen am 25.06.2025
Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.109.052009

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