22-29 July 2015
Europe/Vienna timezone

Effects of Beyond Standard Model physics on Higgs' p_T spectra in Effective Field Theory approach

Jul 23, 2015, 10:40 AM
15m
Großer Festsaal

Großer Festsaal

talk Higgs and New Physics Higgs and New Physics

Speaker

Agnieszka Ilnicka (University of Warsaw)

Description

The first run of the LHC has successfully discovered a Higgs boson, however no signs of New Physics were found. This may suggest that the New Physics is beyond reach of current experiments, and may be accessed just by measuring small deviations from SM predictions. Effective Field Theory (EFT) offers a consistent bottom-up approach to parametrise such deviations. In our work we apply the EFT to shed light on the effects of high-scale BSM physics on the Higgs' p_T spectrum, which will become important for the experimental measurements. The SM predictions for Higgs boson production were augmented by three new dimension 6 operators, leading to the modification of the top and bottom Yukawa coupling, and the ggH point-like coupling. We present p_T spectra including these operators at NLO+NLL level and show how BSM effective operators affect them.

additional information

Work done in collaboration with M. Grazzini, M. Spira and M. Wiesemann.

Primary author

Agnieszka Ilnicka (University of Warsaw)

Co-authors

Marius Wiesemann (Universitaet Zuerich (CH)) Massimiliano Grazzini (Universitaet Zuerich (CH)) Michael Spira (Paul Scherrer Institut (CH))

Presentation materials