Top mass dependent O(α <inf>s</inf><sup>3</sup>) corrections to B-meson mixing in the MSSM

Javier Virto

doi:10.1007/JHEP01(2012)120

Top mass dependent O(α <inf>s</inf><sup>3</sup>) corrections to B-meson mixing in the MSSM

Javier Virto

Department of Physics

Research output: Contribution to journal › Article › Research › peer-review

6 Citations (Scopus)

Abstract

We compute the top mass dependent NLO strong interaction matching conditions to the ΔF = 2 effective Hamiltonian in the general MSSM. We study the relevance of such corrections, comparing its size with that of previously known NLO corrections in the limit m t → 0, in scenarios with degeneracy, alignment, and hierarchical squarks. We find that, while these corrections are generally small, there are regions in the parameter space where the contributions to the Wilson coefficients C 1 and C 4 could partially overcome the expected suppression m t/M SUSY. © SISSA 2012.

Original language	English
Article number	120
Journal	Journal of High Energy Physics
Volume	2012
Issue number	1
DOIs	https://doi.org/10.1007/JHEP01(2012)120
Publication status	Published - 27 Feb 2012

Keywords

B-Physics
Supersymmetric Standard Model

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10.1007/JHEP01(2012)120

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title = "Top mass dependent O(α s3) corrections to B-meson mixing in the MSSM",

abstract = "We compute the top mass dependent NLO strong interaction matching conditions to the ΔF = 2 effective Hamiltonian in the general MSSM. We study the relevance of such corrections, comparing its size with that of previously known NLO corrections in the limit m t → 0, in scenarios with degeneracy, alignment, and hierarchical squarks. We find that, while these corrections are generally small, there are regions in the parameter space where the contributions to the Wilson coefficients C 1 and C 4 could partially overcome the expected suppression m t/M SUSY. {\textcopyright} SISSA 2012.",

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T1 - Top mass dependent O(α s3) corrections to B-meson mixing in the MSSM

AU - Virto, Javier

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N2 - We compute the top mass dependent NLO strong interaction matching conditions to the ΔF = 2 effective Hamiltonian in the general MSSM. We study the relevance of such corrections, comparing its size with that of previously known NLO corrections in the limit m t → 0, in scenarios with degeneracy, alignment, and hierarchical squarks. We find that, while these corrections are generally small, there are regions in the parameter space where the contributions to the Wilson coefficients C 1 and C 4 could partially overcome the expected suppression m t/M SUSY. © SISSA 2012.

AB - We compute the top mass dependent NLO strong interaction matching conditions to the ΔF = 2 effective Hamiltonian in the general MSSM. We study the relevance of such corrections, comparing its size with that of previously known NLO corrections in the limit m t → 0, in scenarios with degeneracy, alignment, and hierarchical squarks. We find that, while these corrections are generally small, there are regions in the parameter space where the contributions to the Wilson coefficients C 1 and C 4 could partially overcome the expected suppression m t/M SUSY. © SISSA 2012.

KW - B-Physics

KW - Supersymmetric Standard Model

U2 - 10.1007/JHEP01(2012)120

DO - 10.1007/JHEP01(2012)120

M3 - Article

VL - 2012

IS - 1

M1 - 120

ER -

Top mass dependent O(α <inf>s</inf><sup>3</sup>) corrections to B-meson mixing in the MSSM

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