L. Zhang

Measurement of the W-boson helicity in top-quark decays from $ \mathrm{t}\overline{\mathrm{t}} $ production in lepton+jets events in pp collisions at $ \sqrt{s}=7 $ TeV

S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan et autres

Abstract The W-boson helicity fractions in top-quark decays are measured with $ \mathrm{t}\overline{\mathrm{t}} $ events in the lepton+jets final state, using proton-proton collisions at a centre-of-mass energy of 7 TeV, collected in 2011 with the CMS detector at the LHC. The data …

am, at, be (code pays fourni par la source)

Search for supersymmetry in events with opposite-sign dileptons and missing transverse energy using an artificial neural network

S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan et autres

In this paper, a search for supersymmetry (SUSY) is presented in events with two opposite-sign isolated leptons in the final state, accompanied by hadronic jets and missing transverse energy. An artificial neural network is employed to discriminate possible SUSY signals from a …

am, at, be, cn (code pays fourni par la source)

Long-range and short-range dihadron angular correlations in central PbPb collisions at $ \sqrt {{{s_{\text{NN}}}}} $ = 2.76 TeV

S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan et autres

am, at, be (code pays fourni par la source)

Search for new physics with same-sign isolated dilepton events with jets and missing transverse energy at the LHC

S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan et autres

am, at, be (code pays fourni par la source)