Seminars IFIC

IFIC Topical Seminar: "Radiative corrections and threshold resummed predictions to pseudoscalar Higgs boson production"

by Arunima Bhattacharya

Europe/Madrid
1001-Primera-1-1-1 - Paterna. Seminario (Universe)

1001-Primera-1-1-1 - Paterna. Seminario

Universe

60
Description

The Higgs boson's discovery has opened up a plethora of possibilities. Exploring these possibilities requires precise theoretical predictions within the SM and beyond (BSM) in conjunction with revolutionary experimental progress. My talk will revolve around the production of the BSM pseudoscalar Higgs boson. First, I will present a setting that has led to the current state of work, followed by the computation of radiative corrections to di-pseudoscalar production via gluon fusion up to NNLO in the Effective Field Theory framework. But FO corrections are known to exhibit instability in certain regions of the kinematic phase space due to large logarithmic contributions from soft gluon emissions. However, resumming these large logs to all orders in perturbation theory can solve the problem. So, I will next talk about the resummation of Next-to-Soft Virtual logarithms up to two-loop order for the threshold production of a pseudoscalar Higgs boson through gluon fusion. I will present the phenomenological implications of the resummed results, theory uncertainties and the impact of QCD corrections on mixed scalar-pseudoscalar states. I will conclude by outlining an ongoing work that attempts to combine the FO and resummed corrections for di-pseudoscalar production.

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