Accès ouvert
2022
article
OpenAlex
A. Tumasyan, W. Adam, J. W. Andrejkovic, T. Bergauer et autres
The ${B}_{c}^{+}$ meson is observed for the first time in heavy ion collisions. Data from the CMS detector are used to study the production of the ${B}_{c}^{+}$ meson in lead-lead (Pb-Pb) and proton-proton ($pp$) collisions at a center-of-mass energy per nucleon pair …
am, at, be, kr, br
(code pays fourni par la source)
Accès ouvert
2020
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
A first observation is presented for the electroweak production of a W boson, a photon, and two jets in proton-proton collisions. The W boson decays are selected by requiring one identified electron or muon and an imbalance in transverse momentum. The two …
am, at, by, be, cn, ru
(code pays fourni par la source)
Accès ouvert
2020
article
OpenAlex
A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
The first search for supersymmetry in events with an experimental signature of one soft, hadronically decaying $\ensuremath{\tau}$ lepton, one energetic jet from initial-state radiation, and large transverse momentum imbalance is presented. These event signatures are consistent with direct or indirect production of …
am, at, be, br
(code pays fourni par la source)
Accès ouvert
2017
article
OpenAlex
A.M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi et autres
A search is performed for anomalous interactions of the recently discovered Higgs boson using matrix element techniques with the information from its decay to four leptons and from associated Higgs boson production with two quark jets in either vector boson fusion or …
am, at, by, be, ru, us
(code pays fourni par la source)
Accès ouvert
2015
article
OpenAlex
V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam et autres
The pseudorapidity distribution of charged hadrons in pp collisions at s = 13 TeV is measured using a data sample obtained with the CMS detector, operated at zero magnetic field, at the CERN LHC. The yield of primary charged long-lived hadrons produced …
am, at, by, be
(code pays fourni par la source)
Accès ouvert
2013
article
OpenAlex
S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan et autres
Abstract A search for supersymmetry in final states with jets and missing transverse energy is performed in pp collisions at a centre-of-mass energy of $ \sqrt{s}=7 $ TeV. The data sample corresponds to an integrated luminosity of 4.98 fb−1 collected by the …
am, at, by, be
(code pays fourni par la source)
Accès ouvert
2012
article
OpenAlex
S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan et autres
Spectra of identified charged hadrons are measured in pp collisions at the LHC for √ s = 0.9, 2.76, and 7 TeV.Charged pions, kaons, and protons in the transversemomentum range p T ≈ 0.1-1.7 GeV/c and for rapidities |y| < 1 are …
ch, at, by, be
(code pays fourni par la source)
Accès ouvert
2012
article
OpenAlex
S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan et autres
A search is presented for charge-asymmetric production of a W boson that has been proposed to accommodate the forward-backward asymmetry observed in the production of top-antitop quark pairs at the Tevatron.The new heavy W boson would be produced in association with a …
am, at, by, be
(code pays fourni par la source)
Accès ouvert
2012
article
OpenAlex
S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan et autres
Abstract Combined results are reported from searches for a fermiophobic Higgs boson in the γγ, WW, and ZZ decay modes in proton-proton collisions at $ \sqrt {s} = 7 $ TeV. The explored Higgs boson mass range is 110–300 GeV. The data …
am, at, by, be
(code pays fourni par la source)
Accès ouvert
2012
article
OpenAlex
S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan et autres
The top quark pair production cross section is measured in dilepton events with one electron or muon, and one hadronically decaying $\ensuremath{\tau}$ lepton from the decay $t\overline{t}\ensuremath{\rightarrow}(\ensuremath{\ell}{\ensuremath{\nu}}_{\ensuremath{\ell}})({\ensuremath{\tau}}_{\mathrm{h}}{\ensuremath{\nu}}_{\ensuremath{\tau}})\mathrm{b}\overline{\mathrm{b}}$, ($\ensuremath{\ell}=e,\ensuremath{\mu}$). The data sample corresponds to an integrated luminosity of $2.0\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ for the …
am, at, be
(code pays fourni par la source)
Accès ouvert
2011
article
OpenAlex
S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan et autres
A measurement of W+W− production in pp collisions at s=7 TeV and a search for the Higgs boson are reported. The W+W− candidates are selected in events with two leptons, either electrons or muons. The measurement is performed using LHC data recorded …
am, be, at
(code pays fourni par la source)