Three-loop $b\to s\gamma$ vertex with current-current operators

We compute three-loop vertex corrections to $b\to s\gamma$ induced by current-current operators. The results are presented as expansions in $m_c/m_b$ with numerical coefficients which allow to cover all relevant values for the heavy quark masses in different renormalization schemes. Moreover we prov...

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Detalles Bibliográficos
Autores principales: Fael, Matteo, Lange, Fabian, Schönwald, Kay, Steinhauser, Matthias
Lenguaje:eng
Publicado: 2023
Materias:
hep-ph
Particle Physics - Phenomenology
Acceso en línea:http://cds.cern.ch/record/2872505
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author Fael, Matteo
Lange, Fabian
Schönwald, Kay
Steinhauser, Matthias
author_facet Fael, Matteo
Lange, Fabian
Schönwald, Kay
Steinhauser, Matthias
author_sort Fael, Matteo
collection CERN
description We compute three-loop vertex corrections to $b\to s\gamma$ induced by current-current operators. The results are presented as expansions in $m_c/m_b$ with numerical coefficients which allow to cover all relevant values for the heavy quark masses in different renormalization schemes. Moreover we provide for the first time analytic results for the next-to-leading order contribution. Our results present an important building block to the next-to-next-to-leading order interference contributions of the current-current operators $Q_1$ and $Q_2$ with the electric dipole operator $Q_7$.
id cern-2872505
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2023
record_format invenio
spelling cern-28725052023-10-15T06:24:55Zhttp://cds.cern.ch/record/2872505engFael, MatteoLange, FabianSchönwald, KaySteinhauser, MatthiasThree-loop $b\to s\gamma$ vertex with current-current operatorshep-phParticle Physics - PhenomenologyWe compute three-loop vertex corrections to $b\to s\gamma$ induced by current-current operators. The results are presented as expansions in $m_c/m_b$ with numerical coefficients which allow to cover all relevant values for the heavy quark masses in different renormalization schemes. Moreover we provide for the first time analytic results for the next-to-leading order contribution. Our results present an important building block to the next-to-next-to-leading order interference contributions of the current-current operators $Q_1$ and $Q_2$ with the electric dipole operator $Q_7$.arXiv:2309.14706CERN-TH-2023-148P3H-23-059TTP23-035ZU-TH 56/23oai:cds.cern.ch:28725052023-09-26
spellingShingle hep-ph
Particle Physics - Phenomenology
Fael, Matteo
Lange, Fabian
Schönwald, Kay
Steinhauser, Matthias
Three-loop $b\to s\gamma$ vertex with current-current operators
title Three-loop $b\to s\gamma$ vertex with current-current operators
title_full Three-loop $b\to s\gamma$ vertex with current-current operators
title_fullStr Three-loop $b\to s\gamma$ vertex with current-current operators
title_full_unstemmed Three-loop $b\to s\gamma$ vertex with current-current operators
title_short Three-loop $b\to s\gamma$ vertex with current-current operators
title_sort three-loop $b\to s\gamma$ vertex with current-current operators
topic hep-ph
Particle Physics - Phenomenology
url http://cds.cern.ch/record/2872505
work_keys_str_mv AT faelmatteo threeloopbtosgammavertexwithcurrentcurrentoperators
AT langefabian threeloopbtosgammavertexwithcurrentcurrentoperators
AT schonwaldkay threeloopbtosgammavertexwithcurrentcurrentoperators
AT steinhausermatthias threeloopbtosgammavertexwithcurrentcurrentoperators

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