Determining the masses of invisible particles: Application to Higgs boson invisible decay
arXiv:1311.3442 · doi:10.1103/PhysRevD.89.093019
Abstract
To know the total width of the recently discovered Higgs boson particle, it is important to measure the invisible decay width of the Higgs boson. However, the signal for this measurement at the LHC, i.e., a charged lepton pair and missing energy in the final state, cannot be definitely understood as the product of the intermediate produced and bosons due to the possible interaction between dark matter and a boson or quarks, which can be described by representative effective operators. First, we consider the relic abundance, the LUX direct detection experiment and the result of searching for Higgs boson invisible decay at the LEP and LHC to find the allowed parameter region for the effective operators. Then we investigate the transverse momentum distribution of the missing energy and propose two observables that can be used to distinguish the different underlying processes. Moreover, with these two observables, we may be able to determine the masses of invisible particles.
10 pages, 8 figures, more discussion and references added, version published in Phys.Rev.D
References in corpus (17)
- Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
- Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
- Jet substructure as a new Higgs search channel at the LHC
- Gauge Singlet Scalars as Cold Dark Matter
- Constraints on Dark Matter from Colliders
- LHC Phenomenology of an Extended Standard Model with a Real Scalar Singlet
- Jet substructure as a new Higgs search channel at the LHC
- Constraints on the Higgs boson width from off-shell production and decay to Z-boson pairs
- Deducing the nature of dark matter from direct and indirect detection experiments in the absence of collider signatures of new physics
- Search for Dark Matter and Large Extra Dimensions in pp Collisions Yielding a Photon and Missing Transverse Energy
- Searching for Dark Matter at the LHC with a Mono-Z
- Next-to-Leading Order Predictions for Dark Matter Production at Hadron Colliders
- Total Width of 125 GeV Higgs Boson
- A Detailed Look at the First Results from the Large Underground Xenon (LUX) Dark Matter Experiment
- A Two-Singlet Model for Light Cold Dark Matter
- Graviton plus vector boson production to NLO in QCD at the LHC
- Updated predictions for graviton and photon associated production at the LHC