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Measurement of electroweak-induced production of Wγ with two jets in pp collisions at \( \sqrt{s}=8 \) TeV and constraints on anomalous quartic gauge couplings

A measurement of electroweak-induced production of Wγ and two jets is performed, where the W boson decays leptonically. The data used in the analysis correspond to an integrated luminosity of 19.7 fb−1 collected by the CMS experiment in \( \sqrt{s}=8 \) TeV proton-proton collisions produced at the LHC. Candidate events are selected with exactly one muon or electron, missing ...

Observation of Y(1S) pair production in proton-proton collisions at \( \sqrt{s}=8 \) TeV

Pair production of Y(1S) mesons is observed at the LHC in proton-proton collisions at \( \sqrt{s}=8 \) TeV by the CMS experiment in a data sample corresponding to an integrated luminosity of 20.7 fb−1. Both Y(1S) candidates are fully reconstructed via their decays to μ + μ −. The fiducial acceptance region is defined by an absolute Y(1S) rapidity smaller than 2.0. The fiducial ...

Search for single production of vector-like quarks decaying to a Z boson and a top or a bottom quark in proton-proton collisions at \( \sqrt{s}=13 \) TeV

A search for single production of vector-like quarks, T and B, decaying into a Z boson and a top or a bottom quark, respectively, is presented. The search is performed using data collected by the CMS experiment at the LHC in proton-proton collisions at \( \sqrt{s}=13 \) TeV, corresponding to an integrated luminosity of 2.3fb−1. An exotic T quark production mode through the decay of ...

A search for new phenomena in pp collisions at \(\sqrt{s} = 13\,\text {TeV} \) in final states with missing transverse momentum and at least one jet using the \(\alpha _{\mathrm {T}}\) variable

. CMS Collaboration Yerevan Physics Institute, Yerevan, Armenia V. Khachatryan, A. M. Sirunyan, A. Tumasyan Institute for Nuclear Problems, Minsk, Belarus O. Dvornikov, V. Makarenko, V. Zykunov

Searches for pair production of third-generation squarks in \(\sqrt{s}=13\) \(\,\text {TeV}\) pp collisions

, Yerevan, Armenia A. M. Sirunyan, A. Tumasyan Institut für Hochenergiephysik, Wien, Austria W. Adam, E. Asilar, T. Bergauer, J. Brandstetter, E. Brondolin, M. Dragicevic, J. Erö, M. Flechl, M. Friedl, R

Measurement of the top quark mass using single top quark events in proton-proton collisions at \(\sqrt{s}= 8\) TeV

. Mossolov, J. Suarez Gonzalez, V. Zykunov 3 Yerevan Physics Institute , Yerevan , Armenia A. M. Sirunyan, A. Tumasyan 4 University of Sofia , Sofia, Bulgaria A. Dimitrov, I. Glushkov, L. Litov, B. Pavlov, P

Suppression and azimuthal anisotropy of prompt and nonprompt \({\mathrm{J}}/\psi \) production in PbPb collisions at \(\sqrt{{s_{_{\text {NN}}}}} =2.76\) \(\,\mathrm{TeV}\)

< |y| < 2.4, 3 < pT < 6.5 GeV/c TAA ( mb−1) Yerevan Physics Institute, Yerevan, Armenia V. Khachatryan, A. M. Sirunyan, A. Tumasyan Institut für Hochenergiephysik, Wien, Austria W. Adam, E. Asilar, T

Search for electroweak production of charginos in final states with two τ leptons in pp collisions at \( \sqrt{s}=8 \) TeV

Results are presented from a search for the electroweak production of supersymmetric particles in pp collisions in final states with two τ leptons. The data sample corresponds to an integrated luminosity between 18.1 fb−1 and 19.6 fb−1 depending on the final state of τ lepton decays, at \( \sqrt{s}=8 \) TeV, collected by the CMS experiment at the LHC. The observed event yields in ...

Charged-particle nuclear modification factors in PbPb and pPb collisions at \( \sqrt{s_{\mathrm{N}\;\mathrm{N}}}=5.02 \) TeV

The spectra of charged particles produced within the pseudorapidity window |η| 20 GeV, R pA exhibits weak momentum dependence and shows a moderate enhancement above unity.

Measurement of the WZ production cross section in pp collisions at \(\sqrt{s} = 7\) and 8 \(\,\text{TeV}\) and search for anomalous triple gauge couplings at \(\sqrt{s} = 8\,\text{TeV} \)

to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3. CMS Collaboration Yerevan Physics Institute, Yerevan, Armenia V. Khachatryan, A. M. Sirunyan, A. Tumasyan

Measurements of differential production cross sections for a Z boson in association with jets in pp collisions at \( \sqrt{s}=8 \) TeV

Cross sections for the production of a Z boson in association with jets in proton-proton collisions at a centre-of-mass energy of \( \sqrt{s}=8 \) TeV are measured using a data sample collected by the CMS experiment at the LHC corresponding to 19.6 fb−1. Differential cross sections are presented as functions of up to three observables that describe the jet kinematics and the jet ...

Search for electroweak production of a vector-like quark decaying to a top quark and a Higgs boson using boosted topologies in fully hadronic final states

A search is performed for electroweak production of a vector-like top quark partner T of charge 2/3 in association with a standard model top or bottom quark, using 2.3 fb−1 of proton-proton collision data at \( \sqrt{s}=13 \) TeV collected by the CMS experiment at the CERN LHC. The search targets T quarks decaying to a top quark and a Higgs boson in fully hadronic final states. For ...

Measurement of prompt and nonprompt \(\mathrm{J}/{\psi }\) production in \(\mathrm {p}\mathrm {p}\) and \(\mathrm {p}\mathrm {Pb}\) collisions at \(\sqrt{s_{\mathrm {NN}}} =5.02\,\text {TeV} \)

, Yerevan , Armenia A. M. Sirunyan, A. Tumasyan 4 Institute Rudjer Boskovic , Zagreb , Croatia V. Brigljevic, D. Ferencek, K. Kadija, B. Mesic, T. Susa 5 Faculty of Science, University of Split , Split

Identification techniques for highly boosted W bosons that decay into hadrons

In searches for new physics in the energy regime of the LHC, it is becoming increasingly important to distinguish single-jet objects that originate from the merging of the decay products of W bosons produced with high transverse momenta from jets initiated by single partons. Algorithms are defined to identify such W jets for different signals of interest, using techniques that are ...

Measurement of top quark–antiquark pair production in association with a W or Z boson in pp collisions at \(\sqrt{s} = 8\) \(\,\text {TeV}\)

source are credited. Funded by SCOAP3 / License Version CC BY 4.0. The CMS Collaboration Yerevan Physics Institute, Yerevan, Armenia V. Khachatryan, A. M. Sirunyan, A. Tumasyan Institut fr

Measurement of the transverse momentum spectrum of the Higgs boson produced in pp collisions at \( \sqrt{s}=8 \) TeV using H → WW decays

The cross section for Higgs boson production in pp collisions is studied using the H → W+W− decay mode, followed by leptonic decays of the W bosons to an oppositely charged electron-muon pair in the final state. The measurements are performed using data collected by the CMS experiment at the LHC at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.4 ...

Search for dark matter and unparticles in events with a Z boson and missing transverse momentum in proton-proton collisions at \( \sqrt{s}=13 \) TeV

A search for dark matter and unparticle production at the LHC has been performed using events containing two charged leptons (electrons or muons), consistent with the decay of a Z boson, and large missing transverse momentum. This study is based on data collected with the CMS detector in 2015, corresponding to an integrated luminosity of 2.3 fb−1 of proton-proton collisions at the ...

Search for heavy neutrinos or third-generation leptoquarks in final states with two hadronically decaying τ leptons and two jets in proton-proton collisions at \( \sqrt{s}=13 \) TeV

A search for new particles has been conducted using events with two high transverse momentum (p T) τ leptons that decay hadronically, at least two high-p T jets, and missing transverse energy from the τ lepton decays. The analysis is performed using data from proton-proton collisions, collected by the CMS experiment in 2015 at \( \sqrt{s}=13 \) TeV, corresponding to an integrated ...

Measurement of the \(\mathrm{t}\overline{\mathrm{t}} \) production cross section using events in the \(\mathrm {e}\mu \) final state in pp collisions at \(\sqrt{s}=13\,\text {TeV} \)

source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3. Yerevan Physics Institute, Yerevan, Armenia V. Khachatryan, A. M. Sirunyan, A. Tumasyan

Search for CP violation in \( t\overline{t} \) production and decay in proton-proton collisions at \( \sqrt{s}=8 \) TeV

The results of a first search for CP violation in the production and decay of top quark-antiquark (\( t\overline{t} \)) pairs are presented. The search is based on asymmetries in T-odd, triple-product correlation observables, where T is the time-reversal operator. The analysis uses a sample of proton-proton collisions at \( \sqrt{s}=8 \) TeV collected by the CMS experiment, ...