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Open AccessJournal ArticleDOI

Search for supersymmetry in pp collisions at √s = 7 TeV in events with a single lepton, jets, and missing transverse momentum

S. Chatrchyan, +3910 more
- 01 Aug 2011 - 
- Vol. 73, Iss: 8, pp 156-199
TLDR
In this paper, a search for physics beyond the standard model in proton-proton collisions at a center-of-mass energy of 7 TeV is reported, focusing on the signature with a single, isolated, high-transverse-momentum lepton (electron or muon), energetic jets, and large missing transverse momentum.
Abstract
Results are reported from a search for physics beyond the standard model in proton-proton collisions at a center-of-mass energy of 7 TeV, focusing on the signature with a single, isolated, high-transverse-momentum lepton (electron or muon), energetic jets, and large missing transverse momentum The data sample comprises an integrated luminosity of 36 inverse picobarns, recorded by the CMS experiment at the LHC The search is motivated by models of new physics, including supersymmetry The observed event yields are consistent with standard model backgrounds predicted using control samples obtained from the data The characteristics of the event sample are consistent with those expected for the production of t t-bar and W +jets events The results are interpreted in terms of limits on the parameter space for the constrained minimal supersymmetric extension of the standard model

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Citations
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Journal ArticleDOI

SARAH 3.2: Dirac Gauginos, UFO output, and more

TL;DR: The newest version of SARAH provides the possibility to create model files in the UFO format which is supported by MadGraph 5, MadAnalysis 5, GoSam , and soon by Herwig++, and SARAH also calculates the mass matrices, RGEs and 1-loop corrections to the mass spectrum.
Journal ArticleDOI

Searches for electroweak production of charginos, neutralinos, and sleptons decaying to leptons and W, Z, and Higgs bosons in pp collisions at 8 TeV

Vardan Khachatryan, +2124 more
TL;DR: In this paper, searches for the direct electroweak production of supersymmetric charginos, neutralinos, and sleptons in a variety of signatures with leptons and W, Z, and Higgs bosons are presented.
Journal ArticleDOI

A critical appraisal of NLO+PS matching methods

TL;DR: In this article, uncertainties in and differences between the MC{at}NLO and POWHEG methods for matching next-to-leading order QCD calculations with parton showers are discussed.
Journal ArticleDOI

Complex scalar singlet dark matter: Vacuum stability and phenomenology

TL;DR: In this article, the authors analyzed one-loop vacuum stability, perturbativity, and phenomenological constraints on a complex singlet extension of the standard model scalar sector containing a scalar dark matter candidate.
Journal ArticleDOI

A critical appraisal of NLO+PS matching methods

TL;DR: In this article, uncertainties in and differences between MC@NLO and POWHEG methods for matching next-to-leading order QCD calculations with parton showers are discussed.
References
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Journal ArticleDOI

Geant4—a simulation toolkit

S. Agostinelli, +126 more
TL;DR: The Gelfant 4 toolkit as discussed by the authors is a toolkit for simulating the passage of particles through matter, including a complete range of functionality including tracking, geometry, physics models and hits.
Journal ArticleDOI

PYTHIA 6.4 Physics and Manual

TL;DR: The Pythia program as mentioned in this paper can be used to generate high-energy-physics ''events'' (i.e. sets of outgoing particles produced in the interactions between two incoming particles).
Journal ArticleDOI

The anti-$k_t$ jet clustering algorithm

TL;DR: The anti-k-t algorithm as mentioned in this paper behaves like an idealised cone algorithm, in that jets with only soft fragmentation are conical, active and passive areas are equal, the area anomalous dimensions are zero, the non-global logarithms are those of a rigid boundary and the Milan factor is universal.
Journal ArticleDOI

The CMS experiment at the CERN LHC

S. Chatrchyan, +3175 more
TL;DR: The Compact Muon Solenoid (CMS) detector at the Large Hadron Collider (LHC) at CERN as mentioned in this paper was designed to study proton-proton (and lead-lead) collisions at a centre-of-mass energy of 14 TeV (5.5 TeV nucleon-nucleon) and at luminosities up to 10(34)cm(-2)s(-1)
Journal ArticleDOI

Dynamical Breaking of Supersymmetry

TL;DR: In this article, general conditions for dynamical supersymmetry breaking are discussed and examples are given (in 0 + 1 and 2 + 1 dimensions) in which such a program in four dimensions is possible.
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