Search for heavy, top-like quark pair production in the dilepton final state in pp collisions at sqrt(s) = 7 TeV
arXiv:1203.5410 · doi:10.1016/j.physletb.2012.07.059
Abstract
The results of a search for pair production of a heavy, top-like quark, t', in the decay mode (t' anti-t') to (b anti-W anti-b W) to (b anti-lepton neutrino anti-b lepton anti-neutrino) are presented. The search is performed with a data sample corresponding to an integrated luminosity of 5.0 inverse femtobarns in pp collisions at a center-of-mass energy of 7 TeV, collected by the CMS experiment at the LHC. The observed number of events agrees with the expectation from standard model processes, and no evidence of t' anti-t' production is found. Upper limits on the production cross section as a function of t' mass are presented, and t' masses below 557 GeV/c^2 are excluded at the 95% confidence level.
Submitted to Physics Letters B. This version equivalent to the published version
References in corpus (9)
- PYTHIA 6.4 Physics and Manual
- -- HATHOR -- HAdronic Top and Heavy quarks crOss section calculatoR
- Less space for a new family of fermions
- Search for new physics with same-sign isolated dilepton events with jets and missing transverse energy
- Measurement of the t t-bar Production Cross Section in pp Collisions at 7 TeV in Lepton + Jets Events Using b-quark Jet Identification
- Experimental constraints on fourth generation quark masses
- Source of CP Violation for the Baryon Asymmetry of the Universe
- Source of CP Violation for Baryon Asymmetry of the Universe
- Search for pair production of a heavy up-type quark decaying to a W boson and a b quark in the lepton+jets channel with the ATLAS detector
Cited by in corpus (49)
- Inclusive search for a vector-like T quark with charge 2/3 in pp collisions at sqrt(s) = 8 TeV
- Search for production of vector-like quark pairs and of four top quarks in the lepton-plus-jets final state in collisions at TeV with the ATLAS detector
- Higgs Low-Energy Theorem (and its corrections) in Composite Models
- A Higgs Conundrum with Vector Fermions
- Coupling--mass mapping of di-jet peak searches
- Search for vector-like charge 2/3 T quarks in proton-proton collisions at sqrt(s) = 8 TeV
- A Fermionic Top Partner: Naturalness and the LHC
- Search for heavy bottom-like quarks in 4.9 inverse femtobarns of pp collisions at sqrt(s) = 7 TeV
- Measurements of t t-bar spin correlations and top-quark polarization using dilepton final states in pp collisions at sqrt(s) = 7 TeV
- Measurement of the ratio B(t to Wb)/B(t to Wq) in pp collisions at sqrt(s) = 8 TeV
- Direct and indirect signals of natural composite Higgs models
- Search for pair production of a new heavy quark that decays into a boson and a light quark in collisions at TeV with the ATLAS detector
- Vectorlike Fermions and Higgs Couplings
- Inclusive top-pair production phenomenology with TOPIXS
- Vector-like Singlet Quarks: a Roadmap
- Natural SUSY in Plain Sight
- Search for pair produced fourth-generation up-type quarks in pp collisions at sqrt(s) = 7 TeV with a lepton in the final state
- Search for pair production of heavy top-like quarks decaying to a high-pT W boson and a b quark in the lepton plus jets final state at sqrt(s)=7 TeV with the ATLAS detector
- The recent Higgs boson data and Higgs triplet model with vectorlike quarks
- Search for vector-like T quarks decaying to top quarks and Higgs bosons in the all-hadronic channel using jet substructure
- Minimal Dilaton Model
- Combined search for the quarks of a sequential fourth generation
- Top Partners and Higgs Boson Production
- Gamma-ray lines and One-Loop Continuum from s-channel Dark Matter Annihilations
- Measurements of the t t-bar charge asymmetry using the dilepton decay channel in pp collisions at sqrt(s) = 7 TeV
- Heavy Vector-like quark with charge 5/3 at the LHC
- Closing in on a perturbative fourth generation
- Searches for Higgs bosons in pp collisions at sqrt(s) = 7 and 8 TeV in the context of four-generation and fermiophobic models
- Exotic Top Partners and Little Higgs
- Non-minimal Universal Extra Dimensions with Brane Local Terms: The Top Quark Sector
- Dipole Moment Bounds on Dark Matter Annihilation
- Electroweak symmetry breaking and collider signatures in the next-to-minimal composite Higgs model
- Gamma Rays from Top-Mediated Dark Matter Annihilations
- Can New Colored Particles Illuminate the Higgs?
- Fourth Generation Parity
- Fully hadronic decays of a singly produced vector-like top partner at the LHC
- The 125 GeV Higgs in the context of four generations with 2 Higgs doublets
- LHC signatures of vector-like quarks
- Radiatively Induced Type II seesaw and Vector-like 5/3 Charge Quarks
- Direct Constraints, Flavor Physics, and Flavor Anomalies in Composite Higgs Models
- Non-Linear Single Higgs MSSM
- Vector Quarks in the Higgs Triplet Model
- Exotic colored scalars at the LHC
- Phenomenological Aspects of R-parity Violating Supersymmetry with A Vector-like Extra Generation
- Supersymmetry after the Higgs discovery and its LHC phenomenology
- One-loop QCD correction to top pair production in the littlest Higgs model with T-parity at the LHC
- A Fourth Neutrino and its Consequences on CP Asymmetries
- Dipole Moment Bounds on Scalar Dark Matter Annihilation
- LHC searches for physics beyond the Standard Model with top quarks