Combined CDF and D0 upper limits on MSSM Higgs boson production in tau-tau final states with up to 2.2 fb-1

Abstract

Combined results are presented on the search for a neutral Higgs boson in the di-tau final state using 1.8 fb −1 and 2.2 fb −1 of integrated luminosity collected at the CDF and D0 experiments respectively. Data were collected in pp collisions at a centre of mass energy of 1.96 TeV during RunII of the Tevatron. Limits are set on the cross section × branching ratio ranging from 13.6 pb to 0.653 pb for Higgs masses from 90 GeV to 200 GeV respectively. The results are then interpreted as limits in four different benchmark scenarios within the framework of the MSSM.

Constraints on Supersymmetry from relic density compared with future Higgs searches at the LHC

“…Similar results were obtained earlier by the CMS Collaboration [29]. The region excluded at present by the combined data from the CDF and D0 Collaborations at the Tevatron (using 1.8-2.2 f b −1 at a center-of-mass energy of 1.96 TeV) has been indicated as well [30]. The expected exclusion for the initial LHC run at 7 TeV is indicated from the preliminary CMS study assuming a luminosity of 1f b −1 [31].…”

“…If the heavy Higgses are well above the light Higgs, all masses of the other charged and neutral Higgses are nearly degenerate and the production cross sections for the heavy scalar and pseudoscalar Higgs are nearly identical, so in practice one obtains twice the cross section, since the interference between [28]. The region already excluded at the Tevatron [30] and the expected exclusion reach after the initial 7 TeV run at the LHC [29] have been indicated as well (assuming a luminosity of 1 f b −1 ). These sensitivity projections for future LHC running of the ATLAS and CMS detectors are preliminary.…”

“…Right: expected discovery reach for the ATLAS detector at 14 TeV and a luminosity of 30 f b −1[28]. The region already excluded at the Tevatron[30] and the expected exclusion reach after the initial 7 TeV run at the LHC[29] have been indicated as well (assuming a luminosity of 1 f b −1 ). These sensitivity projections for future LHC running of the ATLAS and CMS detectors are preliminary.…”

Low Mass Neutralino Dark Matter in the MSSM with Constraints from $B_s\to μ^+μ^-$ and Higgs Search Limits

“…The blue band is the approximate range of Higgs mass disallowed by Tevatron searches. The analysis shows that the reach of the spin independent cross section is strongly constrained by the mass of the Higgses[17,18]. Right: Spin independent cross section correlated to the branching ratio Bs → µ + µ − .…”

The Higgs Sector and CoGeNT/DAMA-Like Dark Matter in Supersymmetric Models

“…There are two especially relevant limits given the need to focus on large tan β in order to achieve large σ SI . The first is the limit on bbh 1 with h 1 → τ + τ − associated production [18], which scales as C 2 h 1 bb ∼ tan 2 β, the latter being something we want to maximize. The second limits are those on t → h + b with h + → τ + ν τ [19] (dominant at large tan β).…”