Standard Model In Pp Collisions Research Articles

Search for neutral Higgs bosons of the minimal supersymmetric standard model in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector

A search for the neutral Higgs bosons predicted by the Minimal Supersymmetric Standard Model (MSSM) is reported. The analysis is performed on data from proton-proton collisions at a centre-of-mass energy of 8 TeV collected with the ATLAS detector at the Large Hadron Collider. The samples used for this search were collected in 2012 and correspond to integrated luminosities in the range 19.5-20.3 fb−1. The MSSM Higgs bosons are searched for in the τ τ final state. No significant excess over the expected background is observed, and exclusion limits are derived for the production cross section times branching fraction of a scalar particle as a function of its mass. The results are also interpreted in the MSSM parameter space for various benchmark scenarios.

Results on non-SUSY searches for physics beyond standard model in pp collisions at CMS

In this paper a review of the results on searches for physics beyond the standard model in pp collisions with the CMS experiment at {ie257-1} and 8 TeV is presented. Aspects of the analyses and their achieved limits on Z′- and W′-bosons, heavy neutrino, 4 th generation, leptoquarks as well as extra dimensions will be covered.

Search for the neutral Higgs bosons of the minimal supersymmetric standard model in pp collisions at $ \sqrt{s}=7 $ TeV with the ATLAS detector

AbstractA search for neutral Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM) is reported. The analysis is based on a sample of proton-proton collisions at a centre-of-mass energy of 7 TeV recorded with the ATLAS detector at the Large Hadron Collider. The data were recorded in 2011 and correspond to an integrated luminosity of 4.7 fb−1to 4.8 fb−1. Higgs boson decays into oppositely-charged muon orτlepton pairs are considered for final states requiring either the presence or absence ofb-jets. No statistically significant excess over the expected background is observed and exclusion limits at the 95% confidence level are derived. The exclusion limits are for the production cross-section of a generic neutral Higgs boson,ϕ, as a function of the Higgs boson mass and forh/A/Hproduction in the MSSM as a function of the parametersmAand tanβin the$ m_h^{\max } $scenario formAin the range of 90 GeV to 500 GeV.

Search for W-tilde1Z-tilde2 production via trilepton final states in pp-bar collisions at sqrt s=1.8 TeV.

We have searched for associated production of the lightest chargino W 1 and next-to-lightest neutralino Z 2 of the minimal supersymmetric standard model in pp collisions at √s=1.8 TeV using the D0 detector at the Fermilab Tevatron collider. Data corresponding to an integrated luminosity of 12.5±0.7pb -1 were examined for events containing three isolated leptons. No evidence for W 1 Z 2 pair production was found. Limits on s(W 1 Z 2 )B(W 1 →lνZ 1 )B(Z 2 →llZ 1 ) are presented.