Lilith: a tool for constraining new physics from Higgs measurements

Abstract

The properties of the observed Higgs boson with mass around 125 GeV can be affected in a variety of ways by new physics beyond the Standard Model (SM). The wealth of experimental results, targeting the different combinations for the production and decay of a Higgs boson, makes it a non-trivial task to assess the compatibility of a non-SM-like Higgs boson with all available results. In this paper we present Lilith, a new public tool for constraining new physics from signal strength measurements performed at the LHC and the Tevatron. Lilith is a Python library that can also be used in C and C++/ROOT programs. The Higgs likelihood is based on experimental results stored in an easily extensible XML database, and is evaluated from the user input, given in XML format in terms of reduced couplings or signal strengths. The results of Lilith can be used to constrain a wide class of new physics scenarios.

57 pages, 11 figures; v2: minor corrections, references added; v3: extended discussions on the validity of the approach, matches the published version; the code can be found at http://lpsc.in2p3.fr/projects-th/lilith/

References in corpus (11)

• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Parton distributions for the LHC
• Observation of the diphoton decay of the Higgs boson and measurement of its properties
• VBFNLO: A parton level Monte Carlo for processes with electroweak bosons
• Complete Higgs Sector Constraints on Dimension-6 Operators
• Scalar and pseudoscalar Higgs production in association with a top-antitop pair
• Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interaction
• Constraints on and future prospects for Two-Higgs-Doublet Models in light of the LHC Higgs signal
• Higgcision Updates 2014
• Status of Higgs couplings after Run-1 of the LHC using Lilith 1.0
• Determination of the Higgs CP mixing angle in the tau decay channels at the LHC including the Drell-Yan background

Cited by in corpus (44)

• HiggsSignals-2: Probing new physics with precision Higgs measurements in the LHC 13 TeV era
• HiggsTools: BSM scalar phenomenology with new versions of HiggsBounds and HiggsSignals
• Scrutinizing the Alignment Limit in Two-Higgs-Doublet Models. Part 2: $m_H=125$ GeV
• Scrutinizing the Alignment Limit in Two-Higgs-Doublet Models. Part 1: $m_h=125$ GeV
• The diphoton signal of the light Higgs boson in Natural NMSSM
• A new insight into the phase transition in the early Universe with two Higgs doublets
• Constraining new physics from Higgs measurements with Lilith: update to LHC Run 2 results
• Reinterpretation of LHC Results for New Physics: Status and Recommendations after Run 2
• Hierarchical vs Degenerate 2HDM: The LHC Run 1 Legacy at the Onset of Run 2
• Strong first-order phase transitions in the NMSSM --- a comprehensive survey
• What Fermilab $(g-2{)}_{\mu }$ experiment tells us about discovering SUSY at HL-LHC and HE-LHC
• Leptoquarks in Oblique Corrections and Higgs Signal Strength: Status and Prospects
• Exploring Extended Scalar Sectors with Di-Higgs Signals: A Higgs EFT Perspective
• Pseudo-Nambu-Goldstone dark matter and two-Higgs-doublet models
• Probing a Scalar Singlet-Catalyzed Electroweak Phase Transition with Resonant Di-Higgs Production in the $4b$ Channel
• Phase transition gravitational waves from pseudo-Nambu-Goldstone dark matter and two Higgs doublets
• Implications of CP-violating Top-Higgs Couplings at LHC and Higgs Factories
• Phenomenological MSSM interpretation of CMS searches in pp collisions at sqrt(s) = 7 and 8 TeV
• Minimal Neutral Naturalness Model
• Mono-Higgs Signature in the Scotogenic Model with Majorana Dark Matter
• Signatures of sneutrino dark matter in an extension of the CMSSM
• Investigating light NMSSM pseudoscalar states with boosted ditau tagging
• A light dilaton at the LHC
• Review of LHC experimental results on low mass bosons in multi Higgs models
• Constraints on the Parameter Space in an Inert Doublet Model with two Active Doublets
• EFTs meet Higgs Nonlinearity, Compositeness and (Neutral) Naturalness
• Interpreting 95 GeV di-photon/$b\bar{b}$ excesses as a lightest Higgs boson of the MRSSM
• EasyScan_HEP: a tool for connecting programs to scan the parameter space of physics models
• Vector dark matter from split SU(2) gauge bosons
• Prospecting bipartite Dark Matter through Gravitational Waves
• Ultraviolet completion of pseudo-Nambu-Goldstone dark matter with a hidden U(1) gauge symmetry
• Right sneutrino with $\Delta L=2$ masses as non-thermal dark matter
• Heavy dark matter through the dilaton portal
• Restricting the parameter space of Type-II Two Higgs Doublet Models with CP violation
• Upper limit on first-order electroweak phase transition strength
• Testing Higgs boson scenarios in the phenomenological NMSSM
• Dilaton portal in strongly interacting twin Higgs models
• Low-mass neutralino dark matter in supergravity scenarios: phenomenology and naturalness
• Flavor Violating Higgs Couplings in Minimal Flavor Violation
• Revealing mass-degenerate states in Higgs boson signals
• Tests of gluino-driven radiative breaking of the electroweak symmetry at the LHC
• Is there new particle running in the loop-induced $H\gamma \gamma$ and $Hgg$ vertex?
• Light dark matter around 100 GeV from the inert doublet model
• Complex scalar dark matter in a new gauged U(1) symmetry with kinetic and direct mixings