b --> s$\gamma$ and b --> s g: a theoretical reappraisal

We present upgraded theoretical predictions for inclusive and exclusive radiative decays of {\it B} mesons. Our results include those next-to-leading order corrections that have already been computed. Our best estimates in the Standard Model are $BR(B \rightarrow K~* \gamma)=(4.3 \pm 0.9~{ +1.4}_{-1...

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Detalles Bibliográficos
Autores principales: Ciuchini, Marco, Franco, E., Martinelli, G., Reina, L., Silvestrini, L.
Lenguaje:eng
Publicado: 1994
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(94)90602-5
http://cds.cern.ch/record/264241
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author Ciuchini, Marco
Franco, E.
Martinelli, G.
Reina, L.
Silvestrini, L.
author_facet Ciuchini, Marco
Franco, E.
Martinelli, G.
Reina, L.
Silvestrini, L.
author_sort Ciuchini, Marco
collection CERN
description We present upgraded theoretical predictions for inclusive and exclusive radiative decays of {\it B} mesons. Our results include those next-to-leading order corrections that have already been computed. Our best estimates in the Standard Model are $BR(B \rightarrow K~* \gamma)=(4.3 \pm 0.9~{ +1.4}_{-1.0}) \times 10~{-5}$, $BR(B \rightarrow X_s \gamma) =(1.9 \pm 0.2\pm 0.5) \times 10~{-4}$, $\Gamma(B \rightarrow K~* \gamma)/ \Gamma(B \rightarrow X_s \gamma)=0.23 \pm 0.09$ and $BR(B \rightarrow X_s g)= (1.57 \pm 0.15 ~{+0.86}_{-0.59} \pm 0.23) \times 10~{-3}$. We also consider limits found with two-Higgs-doublet models.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1994
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spelling cern-2642412022-08-05T02:28:12Zdoi:10.1016/0370-2693(94)90602-5http://cds.cern.ch/record/264241engCiuchini, MarcoFranco, E.Martinelli, G.Reina, L.Silvestrini, L.b --> s$\gamma$ and b --> s g: a theoretical reappraisalParticle Physics - PhenomenologyWe present upgraded theoretical predictions for inclusive and exclusive radiative decays of {\it B} mesons. Our results include those next-to-leading order corrections that have already been computed. Our best estimates in the Standard Model are $BR(B \rightarrow K~* \gamma)=(4.3 \pm 0.9~{ +1.4}_{-1.0}) \times 10~{-5}$, $BR(B \rightarrow X_s \gamma) =(1.9 \pm 0.2\pm 0.5) \times 10~{-4}$, $\Gamma(B \rightarrow K~* \gamma)/ \Gamma(B \rightarrow X_s \gamma)=0.23 \pm 0.09$ and $BR(B \rightarrow X_s g)= (1.57 \pm 0.15 ~{+0.86}_{-0.59} \pm 0.23) \times 10~{-3}$. We also consider limits found with two-Higgs-doublet models.We present upgraded theoretical predictions for inclusive and exclusive radiative decays of {\it B} mesons. Our results include those next-to-leading order corrections that have already been computed. Our best estimates in the Standard Model are $BR(B \rightarrow K~* \gamma)=(4.3 \pm 0.9~{ +1.4}_{-1.0}) \times 10~{-5}$, $BR(B \rightarrow X_s \gamma) =(1.9 \pm 0.2\pm 0.5) \times 10~{-4}$, $\Gamma(B \rightarrow K~* \gamma)/ \Gamma(B \rightarrow X_s \gamma)=0.23 \pm 0.09$ and $BR(B \rightarrow X_s g)= (1.57 \pm 0.15 ~{+0.86}_{-0.59} \pm 0.23) \times 10~{-3}$. We also consider limits found with two-Higgs-doublet models.We present upgraded theoretical predictions for inclusive and exclusive radiative decays of {\it B} mesons. Our results include those next-to-leading order corrections that have already been computed. Our best estimates in the Standard Model are $BR(B \rightarrow K~* \gamma)=(4.3 \pm 0.9~{ +1.4}_{-1.0}) \times 10~{-5}$, $BR(B \rightarrow X_s \gamma) =(1.9 \pm 0.2\pm 0.5) \times 10~{-4}$, $\Gamma(B \rightarrow K~* \gamma)/ \Gamma(B \rightarrow X_s \gamma)=0.23 \pm 0.09$ and $BR(B \rightarrow X_s g)= (1.57 \pm 0.15 ~{+0.86}_{-0.59} \pm 0.23) \times 10~{-3}$. We also consider limits found with two-Higgs-doublet models.We present upgraded theoretical predictions for inclusive and exclusive radiative decays of B mesons. Our results include those next-to-leading order corrections that have already been computed. Our best estimates in the Standard Model are BR ( B → K * γ) = (4.3±0.9 −1.0 +1.4 ) × 10 −5 , BR ( B → X s γ) = (1.9±0.2±0.5) × 10 −4 , Γ( B → K * γ)/Γ( B → X s γ) = 0.23±0.09 and BR ( B → X s g ) = (1.57±0.15 −059 +0.86 ±0.23) × 10 −3 . We also consider limits found with two-Higgs-doublet models.hep-ph/9406239CERN-TH-7283-94ROME-1020-1994ULB-TH-09-94ROMA-1-1020CERN-TH-7283-94oai:cds.cern.ch:2642411994
spellingShingle Particle Physics - Phenomenology
Ciuchini, Marco
Franco, E.
Martinelli, G.
Reina, L.
Silvestrini, L.
b --> s$\gamma$ and b --> s g: a theoretical reappraisal
title b --> s$\gamma$ and b --> s g: a theoretical reappraisal
title_full b --> s$\gamma$ and b --> s g: a theoretical reappraisal
title_fullStr b --> s$\gamma$ and b --> s g: a theoretical reappraisal
title_full_unstemmed b --> s$\gamma$ and b --> s g: a theoretical reappraisal
title_short b --> s$\gamma$ and b --> s g: a theoretical reappraisal
title_sort b --> s$\gamma$ and b --> s g: a theoretical reappraisal
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/0370-2693(94)90602-5
http://cds.cern.ch/record/264241
work_keys_str_mv AT ciuchinimarco bsgammaandbsgatheoreticalreappraisal
AT francoe bsgammaandbsgatheoreticalreappraisal
AT martinellig bsgammaandbsgatheoreticalreappraisal
AT reinal bsgammaandbsgatheoreticalreappraisal
AT silvestrinil bsgammaandbsgatheoreticalreappraisal

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