Abstract
The inert Two Higgs Doublet Model (i2HDM) is a theoretically well-motivated example of a minimal consistent Dark Matter(DM) model which provides mono-jet, mono-Z, mono-Higgs and Vector-Boson-Fusion+Missing Transverse Momentum signatures at the LHC, complemented by signals in direct and indirect DM search experiments. In this paper we have performed a detailed analysis of the constraints in the full 5D parameter space of the i2HDM, coming from perturbativity, unitarity, electroweak precision data, Higgs data from LHC, DM relic density, direct/indirect DM detection and LHC mono-jet analysis, as well as implications of experimental LHC studies on disappearing charged tracks relevant to high DM mass region. We demonstrate the complementarity of the above constraints and present projections for future LHC data and direct DM detection experiments to probe further i2HDM parameter space. The model is implemented into the CalcHEP and micrOMEGAs packages, which are publicly available at the HEPMDB database, and is ready for a further exploration in the context of the LHC, relic density and DM direct detection.
Highlights
The evidence for dark matter (DM) is well established from several independent cosmological observations, including galactic rotation curves, cosmic microwave background fits of the Wilkinson Microwave Anisotropy Probe (WMAP) and PLANCK data, gravitational lensing, large scale structure of the Universe, as well as interacting galaxy clusters such as the Bullet Cluster
The model is implemented into the CALCHEP and MICROMEGAS packages, which are publicly available at the High Energy Physics Model Data-Base (HEPMDB) database, and it is ready for a further exploration in the context of the LHC, relic density, and DM direct detection
When calculating the cross sections of mono-object production at the LHC, we used the following setup for the process evaluation: (i) the QCD renormalization and factorization scales Q were chosen to be equal to the transverse momentum of the pair of DM particles, i.e. missing transverse momentum, EmT iss for all processes; (ii) the parton density function (PDF) and the strong coupling constant are as provided by the NNPDF23LO PDF set [90]; (iii) for all processes a cut on the minimal value of missing transverse momentum of 100 GeV was applied; (iv) the vector boson fusion (VBF) cross section has been evaluated with the following additional cuts: PjT > 30 GeV; Δηjj > 4; Ej > 400 GeV: ð35Þ
Summary
The evidence for dark matter (DM) is well established from several independent cosmological observations, including galactic rotation curves, cosmic microwave background fits of the WMAP and PLANCK data, gravitational lensing, large scale structure of the Universe, as well as interacting galaxy clusters such as the Bullet Cluster. (i) detailed combined analysis of the i2HDM model in its full five-dimensional (5D) parameter space, taking into account perturbativity and unitarity, LEP and electroweak precision data, Higgs data from the LHC, DM relic density, direct/indirect DM detection complemented by realistic (beyond-theparton-level) LHC monojet analysis at the LHC;. (v) separate, detailed analyses for the assumptions of the DM relic density being fitted to the PLANCK results or underabundant, allowing for additional allowed regions of the parameter space All these points above are in close focus of the present paper where we have performed a comprehensive scan and study of the full parameter space of the i2HDM model.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
