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Prikaz rezultata 31-40 od 419
Measurement of Spin Correlation in Top-Antitop Quark Events and Search for Top Squark Pair Production in pp Collisions at root s=8 TeV Using the ATLAS Detector
(Physical Review Letters, 2015)
A measurement of spin correlation in t (t) over bar production is presented using data collected with the ATLAS detector at the Large Hadron Collider in proton-proton collisions at a center-of-mass energy of 8 TeV, ...
Search for Higgs and Z Boson Decays to J/psi gamma and Upsilon(nS)gamma with the ATLAS Detector
(Physical Review Letters, 2015)
A search for the decays of the Higgs and Z bosons to J/psi gamma and Upsilon(nS)gamma (n = 1,2,3) is performed with pp collision data samples corresponding to integrated luminosities of up to 20.3 fb(-1) collected at root ...
Transverse momentum spectra of inclusive b jets in pPb collisions atv root s(NN)=5.02 TeV
(Elsevier, 2016)
We present a measurement of b jet transverse momentum (p(T)) spectra in proton-lead (pPb) collisions using a dataset corresponding to about 35nb(-1) collected with the CMS detector at the LHC. Jets from b quark fragmentation ...
Search for pair production of heavy top-like quarks decaying to a high-p(T) W boson and a b quark in the lepton plus jets final state at root s=7 TeV with the ATLAS detector
(Physics Letters B, 2013)
A search is presented for production of a heavy up-type quark (t) together with its antiparticle, assuming a significant branching ratio for subsequent decay into a W boson and a b quark. The search is based on 4.7 fb(-1) ...
Search for Narrow Resonances Decaying to Dijets in Proton-Proton Collisions at root s=13 TeV
(Physical Review Letters, 2016)
A search for narrow resonances in proton-proton collisions at root s = 13 TeV is presented. The invariant mass distribution of the two leading jets is measured with the CMS detector using a data set corresponding to an ...
Search for stealth supersymmetry in events with jets, either photons or leptons, and low missing transverse momentum in pp collisions at 8 TeV
(Physics Letters B, 2015)
The results of a search for new physics in final states with jets, either photons or leptons, and low missing transverse momentum are reported. The study is based on a sample of proton-proton collisions collected at a ...
Angular analysis of the decay B-0 - GT K*(0)mu(+)mu(-) from pp collisions at root s=8 TeV
(Elsevier, 2016)
The angular distributions and the differential branching fraction of the decay B-0 - GT K*(892)(0)mu(+)mu(-) are studied using data corresponding to an integrated luminosity of 20.5 fb(-1) collected with the CMS detector ...
Measurement of jet suppression in central Pb-Pb collisions at root s(NN)=2.76 TeV
(Physics Letters B, 2015)
The transverse momentum(p(T)) spectrum and nuclear modification factor (R-AA) of reconstructed jets in 0-10% and 10-30% central Pb-Pb collisions at root s(NN) = 2.76 TeV were measured. Jets were reconstructed using the ...
Search for top-squark pairs decaying into Higgs or Z bosons in pp collisions at root s=8 TeV
(Physics Letters B, 2014)
A search for supersymmetry through the direct pair production of top squarks, with Higgs (H) or Z bosons in the decay chain, is performed using a data sample of proton-proton collisions at root s = 8 TeVcollected in 2012 ...
Colchicine for Prevention of Postpericardiotomy Syndrome and Postoperative Atrial Fibrillation The COPPS-2 Randomized Clinical Trial
(Journal of the American Medical Association / JAMA, 2014)
IMPORTANCE Postpericardiotomy syndrome, postoperative atrial fibrillation (AF), and postoperative effusions may be responsible for increased morbidity and health care costs after cardiac surgery. Postoperative use of ...