118 Result(s)
within
Classical and Quantum Gravitation, Relativity Theory
Quantum Field Theories, String Theory
D. Liang
-
Article
Open AccessSuppression of non-prompt J/ψ, prompt J/ψ, and \( \Upsilon \) (1S) in PbPb collisions at \( \sqrt {{{s_{\text{NN}}}}} = 2.76 \) TeV
Yields of prompt and non-prompt J/ψ, as well as \( \Upsilon \) (1S) mesons, are measured by the CMS experiment via their μ ...
-
Article
Open AccessSearch for heavy bottom-like quarks in 4.9 fb−1 of pp collisions at \( \sqrt {s} = 7 \) TeV
Results are presented from a search for heavy bottom-like quarks, pair-produced in pp collisions at \( \sqrt {s} = 7 \) TeV, unde...
-
Article
Open AccessMeasurement of the inclusive production cross sections for forward jets and for dijet events with one forward and one central jet in pp collisions at \( \sqrt {s} = 7 \) TeV
The inclusive production cross sections for forward jets, as well for jets in dijet events with at least one jet emitted at central and the other at forward pseudorapidities, are measured in the range of trans...
-
Article
Open AccessMeasurement of the mass difference between top and antitop quarks
A measurement of the mass difference between the top and the antitop quark (Δm t = m t − ...
-
Article
Open AccessMeasurement of the cross section for production of \( b\overline b X \) decaying to muons in pp collisions at \( \sqrt {s} = 7 \) TeV
A measurement of the inclusive cross section for the process pp → \( {\text{b}}\overline {\text{b}} {\text{X}} \) → μμX′ at ...
-
Article
Open AccessMeasurement of the Z/γ* + b-jet cross section in pp collisions at \( \sqrt {s} = 7 \) TeV
The production of b jets in association with a Z/γ* boson is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7 TeV and recorded by the CMS detector. The inclusive cross s...
-
Article
Open AccessShape, transverse size, and charged-hadron multiplicity of jets in pp collisions at \( \sqrt{s}=7\;TeV \)
Measurements of jet characteristics from inclusive jet production in protonproton collisions at a centre-of-mass energy of 7 TeV are presented. The data sample was collected with the CMS detector at the LHC du...
-
Article
Open AccessSearch for anomalous production of multilepton events in pp collisions at \( \sqrt {s} = 7\,TeV \)
A search for anomalous production of events with three or more isolated leptons in pp collisions at \( \sqrt {s} = 7\,TeV \) is p...
-
Article
Open AccessSearch for a light charged Higgs boson in top quark decays in pp collisions at \( \sqrt {s} = 7\;TeV \)
Results are presented on a search for a light charged Higgs boson that can be produced in the decay of the top quark t → H+b and which, in turn, decays into τ +ν τ ...
-
Article
Open AccessSearch for stopped long-lived particles produced in pp collisions at \( \sqrt {s} = {\text{7TeV}} \)
A search has been performed for long-lived particles that have stopped in the CMS detector, during 7 TeV proton-proton operations of the CERN LHC. The existence of such particles could be inferred from observa...
-
Article
Open AccessSearch for leptonic decays of W′ bosons in pp collisions at \( \sqrt {s} = {7} \) TeV
A search for a new heavy gauge boson W′ decaying to an electron or muon, plus a low mass neutrino, is presented. This study uses data corresponding to an integrated luminosity of 5.0 fb−1, collected using the CMS...
-
Article
Open AccessSearch for new physics in events with same-sign dileptons and b-tagged jets in pp collisions at \( \sqrt {s} = 7 \) TeV
A search for new physics is performed using isolated same-sign dileptons with at least two b-quark jets in the final state. Results are based on a 4.98 fb−1 sample of proton-proton collisions at a centre-of-mass ...
-
Article
Open AccessMeasurement of the underlying event activity in pp collisions at \( \sqrt {s} = 0.9 \) and 7 TeV with the novel jet-area/median approach
The first measurement of the charged component of the underlying event using the novel “jet-area/median” approach is presented for proton-proton collisions at centre-of-mass energies of 0.9 and 7 TeV. The data...
-
Article
Open AccessSearch for anomalous \( t\overline t \) production in the highly-boosted all-hadronic final state
A search is presented for a massive particle, generically referred to as a Z′, decaying into a \( {\mathrm{t}}\overline {\mathrm{t}} \) ...
-
Article
Open AccessSearch for dark matter and large extra dimensions in monojet events in pp collisions at \( \sqrt {s} = {7} \) TeV
A search has been made for events containing an energetic jet and an imbalance in transverse momentum using a data sample of pp collisions at a center-of-mass energy of 7 TeV. This signature is common to both ...
-
Article
Open AccessSearch for a fermiophobic Higgs boson in pp collisions at \( \sqrt {s} = 7 \) TeV
Combined results are reported from searches for a fermiophobic Higgs boson in the γγ, WW, and ZZ decay modes in proton-proton collisions at $ ...
-
Article
Open AccessSearch for supersymmetry in hadronic final states using M T2 in pp collisions at \( \sqrt{s}=7 \) TeV
A search for supersymmetry or other new physics resulting in similar final states is presented using a data sample of 4.73 fb−1 of pp collisions collected at ...
-
Article
Open AccessMeasurement of jet fragmentation into charged particles in pp and PbPb collisions at \( \sqrt{{{s_{\mathrm{NN}}}}} = 2.76 \) TeV
Jet fragmentation in pp and PbPb collisions at a centre-of-mass energy of 2.76 TeV per nucleon pair was studied using data collected with the CMS detector at the LHC. Fragmentation functions are constructed us...
-
Article
Open AccessMeasurement of the \( \mathrm{t}\overline{\mathrm{t}} \) production cross section in the dilepton channel in pp collisions at \( \sqrt{s}=7 \) TeV
The \( \mathrm{t}\overline{\mathrm{t}} \) production cross section ...
-
Article
Open AccessSearch for the standard model Higgs boson produced in association with W and Z bosons in pp collisions at \( \sqrt{s}=7 \) TeV
A search for the Higgs boson produced in association with a W or Z boson in proton-proton collisions at a center-of-mass energy of 7 TeV is performed with the CMS detector at the LHC using the full 2011 data s...
