Light neutralinos at LHC in cosmologically-inspired scenarios: new benchmarks in the search for supersymmetry

Simple item page
dc.creatorBottino, A.
dc.creatorFornengo, N.
dc.creatorPolesello, G.
dc.creatorScopel, S.
dc.date2008-01-22
dc.date.accessioned2026-07-07T11:55:25Z
dc.date.available2026-07-07T11:55:25Z
dc.descriptionWe study how the properties of the four neutralino states, chi_i (i = 1, 2, 3, 4), can be investigated at the Large Hadron Collider (LHC), in the case when the lightest one, chi_1, has a mass m_chi < 50 GeV and is stable. This situation arises naturally in supersymmetric models where gaugino masses are not unified at a Grand Unified (GUT) scale and R-parity is conserved. The main features of these neutralino states are established by analytical and numerical analyses, and two scenarios are singled out on the basis of the cosmological properties required for the relic neutralinos. Signals expected at LHC are discussed through the main chain processes started by a squark, produced in the initial proton-proton scattering. We motivate the selection of some convenient benchmarks, in the light of the spectroscopical properties (mass spectrum and transitions) of the four neutralino states. Branching ratios and the expected total number of events are derived in the various benchmarks, and their relevance for experimental determination of neutralino properties is finally discussed.
dc.description21 pages, 17 figures
dc.identifierhttps://arxiv.org/abs/0801.3334
dc.identifierhttp://arxiv.org/abs/0801.3334
dc.identifierPhys.Rev.D77:115026,2008
dc.identifierdoi:10.1103/PhysRevD.77.115026
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205235
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleLight neutralinos at LHC in cosmologically-inspired scenarios: new benchmarks in the search for supersymmetry
dc.typetext

Files

Collections

arXiv