Search for anomalous production of highly boosted Z bosons decaying to dimuons in proton-proton collisions at sqrt(s) = 7 TeV
arXiv:1210.0867 · doi:10.1016/j.physletb.2013.03.037
Abstract
Results are reported from a search for the anomalous production of highly boosted Z bosons with large transverse momentum and decaying to dimuons. Such Z bosons may be produced in the decays of new heavy particles. The search uses pp collision data at sqrt(s) = 7 TeV, corresponding to an integrated luminosity of 5.0 inverse femtobarns recorded with the CMS detector. The shape of the observed transverse-momentum distribution of Z bosons is consistent with standard model expectations. Constraints are obtained on models predicting the production of excited quarks decaying via electroweak processes. Assuming a compositeness scale that is equal to the excited quark mass as well as transition coupling strengths between Z bosons and excited quarks that are equal to standard model couplings to quarks, masses of excited quarks below 1.94 TeV are excluded at the 95% confidence level. For excited quark production via a novel contact interactions, masses below 2.22 TeV are excluded, even if the excited quarks do not couple to gluons.
arXiv commentReplaced with published version. Added DOI
References in corpus (27)
- PYTHIA 6.4 Physics and Manual
- PYTHIA 6.2 Physics and Manual
- Parton distributions for the LHC
- A New Method for Combining NLO QCD with Shower Monte Carlo Algorithms
- Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
- MadGraph 5 : Going Beyond
- Confidence Level Computation for Combining Searches with Small Statistics
- Implications of CTEQ global analysis for collider observables
- Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV
- The PDF4LHC Working Group Interim Recommendations
- NLO vector-boson production matched with shower in POWHEG
- A first unbiased global NLO determination of parton distributions and their uncertainties
- Measurements of Inclusive W and Z Cross Sections in pp Collisions at sqrt(s)=7 TeV
- Search for new particles decaying into dijets in proton-antiproton collisions at sqrt(s) = 1.96 TeV
- Minimal Walking Technicolor: Set Up for Collider Physics
- Measurement of the Rapidity and Transverse Momentum Distributions of Z Bosons in pp Collisions at sqrt(s)=7 TeV
- ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at sqrt(s)=7 TeV
- Measurement of dijet angular distributions at sqrt{s}=1.96TeV and searches for quark compositeness and extra spatial dimensions
- Early LHC Underlying Event Data - Findings and Surprises
- Search for narrow resonances in dilepton mass spectra in pp collisions at sqrt(s) = 7 TeV
- Measurement of the transverse momentum distribution of Z/gamma* bosons in proton-proton collisions at sqrt(s)=7 TeV with the ATLAS detector
- Higgs and Z-boson Signatures of Supersymmetry
- Search for quark compositeness in dijet angular distributions from pp collisions at sqrt(s) = 7 TeV
- Search for excited leptons in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
- A search for excited leptons in pp Collisions at sqrt(s) = 7 TeV
- Search for Excited Quarks in ep Collisions at HERA
- Search for a heavy resonance decaying into a Z+jet final state in p-pbar collisions at sqrt(s) = 1.96 TeV using the D0 detector
Cited by in corpus (6)
- Search for massive resonances in dijet systems containing jets tagged as W or Z boson decays in pp collisions at sqrt(s) = 8 TeV
- Search for massive resonances decaying into WW, WZ, ZZ, qW, and qZ with dijet final states at 13 TeV
- Search for heavy resonances in the W/Z-tagged dijet mass spectrum in pp collisions at 7 TeV
- Search for excited quarks in the photon+jet final state in proton-proton collisions at sqrt(s) = 8 TeV
- Searching in CMS Open Data for Dimuon Resonances with Substantial Transverse Momentum
- Signature of the +jet and dijet production mediated by an excited quark with QCD next-to-leading order accuracy at the LHC