Precision measurements of Higgs couplings: implications for new physics scales

Englert, C., Freitas, A., Mühlleitner, M. M., Plehn, T., Rauch, M., Spira, M. and Walz, K. (2014) Precision measurements of Higgs couplings: implications for new physics scales. Journal of Physics G: Nuclear and Particle Physics, 41(11), p. 113001. (doi:10.1088/0954-3899/41/11/113001)

Englert, C., Freitas, A., Mühlleitner, M. M., Plehn, T., Rauch, M., Spira, M. and Walz, K. (2014) Precision measurements of Higgs couplings: implications for new physics scales. Journal of Physics G: Nuclear and Particle Physics, 41(11), p. 113001. (doi:10.1088/0954-3899/41/11/113001)

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Abstract

The measured properties of the recently discovered Higgs boson are in good agreement with predictions from the Standard Model. However, small deviations in the Higgs couplings may manifest themselves once the currently large uncertainties will be improved as part of the LHC program and at a future Higgs factory. We review typical new physics scenarios that lead to observable modifications of the Higgs interactions. They can be divided into two broad categories: mixing effects as in portal models or extended Higgs sectors, and vertex loop effects from new matter or gauge fields. In each model we relate coupling deviations to their effective new physics scale. It turns out that with percent level precision the Higgs couplings will be sensitive to the multi-TeV regime.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Englert, Dr Christoph
Authors: Englert, C., Freitas, A., Mühlleitner, M. M., Plehn, T., Rauch, M., Spira, M., and Walz, K.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Journal of Physics G: Nuclear and Particle Physics
Publisher:IOP Publishing Ltd.
ISSN:0954-3899
ISSN (Online):1361-6471

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