The left-right asymmetry of top quarks in associated top-charged Higgs bosons at the LHC as a probe of the tan beta parameter

J. Baglio...[et al.]; M. Beccaria; A. Djouadi; Guido Macorini

doi:10.1016/j.physletb.2011.09.100

The left-right asymmetry of top quarks in associated top-charged Higgs bosons at the LHC as a probe of the tan beta parameter

J. Baglio...[et al.], M. Beccaria, A. Djouadi, Guido Macorini

15 Citationer (Scopus)

Abstract

Many extensions of the Standard Model involve two Higgs doublet fields to break the electroweak symmetry, leading to the existence of three neutral and two charged Higgs particles. In particular, this is the case of the Minimal Supersymmetric extension of the Standard Model, the MSSM. A very important parameter is tan β defined as the ratio of the vacuum expectation value of the two Higgs doublets. In this Letter we focus on the left-right asymmetry in the production of polarised top quarks in association with charged Higgs bosons at the LHC. This quantity allows for a theoretically clean determination of tan β. In the MSSM, the asymmetry remains sensitive to the strong and electroweak radiative corrections and, thus, to the superparticle spectrum. Some possible implications of these results are discussed.

Originalsprog	Engelsk
Tidsskrift	Physics Letters B
Vol/bind	705
Udgave nummer	3
Sider (fra-til)	212-216
ISSN	0370-2693
DOI	https://doi.org/10.1016/j.physletb.2011.09.100
Status	Udgivet - 11 nov. 2011

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10.1016/j.physletb.2011.09.100

Citationsformater

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AU - Baglio...[et al.], J.

AU - Beccaria, M.

AU - Djouadi, A.

AU - Macorini, Guido

PY - 2011/11/11

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N2 - Many extensions of the Standard Model involve two Higgs doublet fields to break the electroweak symmetry, leading to the existence of three neutral and two charged Higgs particles. In particular, this is the case of the Minimal Supersymmetric extension of the Standard Model, the MSSM. A very important parameter is tan β defined as the ratio of the vacuum expectation value of the two Higgs doublets. In this Letter we focus on the left-right asymmetry in the production of polarised top quarks in association with charged Higgs bosons at the LHC. This quantity allows for a theoretically clean determination of tan β. In the MSSM, the asymmetry remains sensitive to the strong and electroweak radiative corrections and, thus, to the superparticle spectrum. Some possible implications of these results are discussed.

AB - Many extensions of the Standard Model involve two Higgs doublet fields to break the electroweak symmetry, leading to the existence of three neutral and two charged Higgs particles. In particular, this is the case of the Minimal Supersymmetric extension of the Standard Model, the MSSM. A very important parameter is tan β defined as the ratio of the vacuum expectation value of the two Higgs doublets. In this Letter we focus on the left-right asymmetry in the production of polarised top quarks in association with charged Higgs bosons at the LHC. This quantity allows for a theoretically clean determination of tan β. In the MSSM, the asymmetry remains sensitive to the strong and electroweak radiative corrections and, thus, to the superparticle spectrum. Some possible implications of these results are discussed.

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DO - 10.1016/j.physletb.2011.09.100

M3 - Journal article

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JO - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology

JF - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology

IS - 3

ER -

The left-right asymmetry of top quarks in associated top-charged Higgs bosons at the LHC as a probe of the tan beta parameter

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