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Weak Radiative Decays of the B Meson and Bounds on $M_{H^\pm}$ in the Two-Higgs-Doublet Model

In a recent publication (Abdesselam et al.  arXiv:1608.02344 ), the Belle collaboration updated their analysis of the inclusive weak radiative B-meson decay, including the full dataset of $(772 \pm 11)\times 10^6~B\bar{B}$ pairs. Their result for the branching ratio is now below the Standard Model p...

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Detalles Bibliográficos
Autores principales: Misiak, Mikolaj, Steinhauser, Matthias
Lenguaje:eng
Publicado: 2017
Materias:
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-017-4776-y
http://cds.cern.ch/record/2258292
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author Misiak, Mikolaj
Steinhauser, Matthias
author_facet Misiak, Mikolaj
Steinhauser, Matthias
author_sort Misiak, Mikolaj
collection CERN
description In a recent publication (Abdesselam et al.  arXiv:1608.02344 ), the Belle collaboration updated their analysis of the inclusive weak radiative B-meson decay, including the full dataset of $(772 \pm 11)\times 10^6~B\bar{B}$ pairs. Their result for the branching ratio is now below the Standard Model prediction (Misiak et al. Phys Rev Lett 114:221801, 2015, Czakon et al. JHEP 1504:168, 2015), though it remains consistent with it. However, bounds on the charged Higgs boson mass in the Two-Higgs-Doublet Model get affected in a significant manner. In the so-called Model II, the 95% C.L. lower bound on $M_{H^\pm }$ is now in the 570–800 GeV range, depending quite sensitively on the method applied for its determination. Our present note is devoted to presenting and discussing the updated bounds, as well as to clarifying several ambiguities that one might encounter in evaluating them. One of such ambiguities stems from the photon energy cutoff choice, which deserves re-consideration in view of the improved experimental accuracy.
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spelling cern-22582922021-11-13T09:15:39Zdoi:10.1140/epjc/s10052-017-4776-yhttp://cds.cern.ch/record/2258292engMisiak, MikolajSteinhauser, MatthiasWeak Radiative Decays of the B Meson and Bounds on $M_{H^\pm}$ in the Two-Higgs-Doublet Modelhep-phParticle Physics - PhenomenologyIn a recent publication (Abdesselam et al.  arXiv:1608.02344 ), the Belle collaboration updated their analysis of the inclusive weak radiative B-meson decay, including the full dataset of $(772 \pm 11)\times 10^6~B\bar{B}$ pairs. Their result for the branching ratio is now below the Standard Model prediction (Misiak et al. Phys Rev Lett 114:221801, 2015, Czakon et al. JHEP 1504:168, 2015), though it remains consistent with it. However, bounds on the charged Higgs boson mass in the Two-Higgs-Doublet Model get affected in a significant manner. In the so-called Model II, the 95% C.L. lower bound on $M_{H^\pm }$ is now in the 570–800 GeV range, depending quite sensitively on the method applied for its determination. Our present note is devoted to presenting and discussing the updated bounds, as well as to clarifying several ambiguities that one might encounter in evaluating them. One of such ambiguities stems from the photon energy cutoff choice, which deserves re-consideration in view of the improved experimental accuracy.In a recent publication [6], the Belle collaboration updated their analysis of the inclusive weak radiative B-meson decay, including the full dataset of (772 +_ 11) x 10^6 BBbar pairs. Their result for the branching ratio is now below the Standard Model prediction [7,8], though it remains consistent with it. However, bounds on the charged Higgs boson mass in the Two-Higgs-Doublet Model get affected in a significant manner. In the so-called Model-II, the 95% C.L. lower bound on $M_{H^\pm}$ is now in the 570-800 GeV range, depending quite sensitively on the method applied for its determination. Our present note is devoted to presenting and discussing the updated bounds, as well as to clarifying several ambiguities that one might encounter in evaluating them. One of such ambiguities stems from the photon energy cutoff choice, which deserves re-consideration in view of the improved experimental accuracy.arXiv:1702.04571TTP17-004IFT-1-2017oai:cds.cern.ch:22582922017-02-15
spellingShingle hep-ph
Particle Physics - Phenomenology
Misiak, Mikolaj
Steinhauser, Matthias
Weak Radiative Decays of the B Meson and Bounds on $M_{H^\pm}$ in the Two-Higgs-Doublet Model
title Weak Radiative Decays of the B Meson and Bounds on $M_{H^\pm}$ in the Two-Higgs-Doublet Model
title_full Weak Radiative Decays of the B Meson and Bounds on $M_{H^\pm}$ in the Two-Higgs-Doublet Model
title_fullStr Weak Radiative Decays of the B Meson and Bounds on $M_{H^\pm}$ in the Two-Higgs-Doublet Model
title_full_unstemmed Weak Radiative Decays of the B Meson and Bounds on $M_{H^\pm}$ in the Two-Higgs-Doublet Model
title_short Weak Radiative Decays of the B Meson and Bounds on $M_{H^\pm}$ in the Two-Higgs-Doublet Model
title_sort weak radiative decays of the b meson and bounds on $m_{h^\pm}$ in the two-higgs-doublet model
topic hep-ph
Particle Physics - Phenomenology
url https://dx.doi.org/10.1140/epjc/s10052-017-4776-y
http://cds.cern.ch/record/2258292
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