Programme

O.19 -- Oral, VCTP-44

Date: Thursday, 1 August 2019

Time: 14:50 - 15:10

Constraining new physics from Higgs measurements with Lilith: update to LHC Run 2 results

Thi Nhung Dao (1), Sabine Kraml (2), Duc Ninh Le (1), Quang Loc Tran (1)

(1) Institute For Interdisciplinary Research in Science and Education, ICISE, 590000, Quy Nhon, Vietnam; (2) Laboratoire de Physique Subatomique et de Cosmologie, Université Grenoble-Alpes, CNRS/IN2P3, 53 Avenue des Martyrs, F-38026 Grenoble, France

Lilith is public python library for constraining new physics from Higgs signal strength measurements. We here present version 2.0 of Lilith together with an updated database which includes the full set of ATLAS and CMS Run 2 Higgs results for 36 fb$^{-1}$. Both the code and the XML database where extended from the ordinary Gaussian approximation employed in Lilith-1.1 to using variable Gaussian and Poisson distributions. Moreover, Lilith can now make use of correlation matrices of arbitrary dimension. We provide detailed validations of the implemented experimental results as well as a status of global fits for i) reduced Higgs couplings and ii) Two-Higgs-doublet models of Type-I and Type-II. Lilith-2.0 is available on GitHub and ready to be used to constrain a wide class of new physics scenarios.

Presenter: Tran Quang Loc