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Search for new physics with dijet angular distributions in proton-proton collisions at \( \sqrt{s}=13 \) TeV

A search is presented for extra spatial dimensions, quantum black holes, and quark contact interactions in measurements of dijet angular distributions in proton-proton collisions at \( \sqrt{s}=13 \) TeV. The data were collected with the CMS detector at the LHC and correspond to an integrated luminosity of 2.6 fb−1. The distributions are found to be in agreement with predictions ...

Search for \( \mathrm{t}\overline{\mathrm{t}} \) resonances in highly boosted lepton+jets and fully hadronic final states in proton-proton collisions at \( \sqrt{s}=13 \) TeV

A search for the production of heavy resonances decaying into top quark-antiquark pairs is presented. The analysis is performed in the lepton+jets and fully hadronic channels using data collected in proton-proton collisions at \( \sqrt{s}=13 \) TeV using the CMS detector at the LHC, corresponding to an integrated luminosity of 2.6 fb−1. The selection is optimized for massive ...

Search for associated production of a Z boson with a single top quark and for tZ flavour-changing interactions in pp collisions at \( \sqrt{s}=8 \) TeV

A search for the production of a single top quark in association with a Z boson is presented, both to identify the expected standard model process and to search for flavour-changing neutral current interactions. The data sample corresponds to an integrated luminosity of 19.7 fb−1 recorded by the CMS experiment at the LHC in proton-proton collisions at \( \sqrt{s}=8 \) TeV. Final ...

Measurement of double-differential cross sections for top quark pair production in pp collisions at \(\sqrt{s} = 8\) \(\,\text {TeV}\) and impact on parton distribution functions

observed in the 18-parameter fit at NLO (Fig. 17). Page 30 of 45 CMS Collaboration Yerevan Physics Institute, Yerevan, Armenia A. M. Sirunyan, A. Tumasyan Institut für Hochenergiephysik, Vienna, Austria W

Measurement of the jet mass in highly boosted \({\mathrm{t}}\overline{\mathrm{t}}\) events from pp collisions at \(\sqrt{s}=8\) \(\,\text {TeV}\)

Collaboration Yerevan Physics Institute, Yerevan, Armenia A. M. Sirunyan, A. Tumasyan Institute for Nuclear Problems, Minsk, Belarus O. Dvornikov, V. Makarenko, V. Mossolov, J. Suarez Gonzalez, V. Zykunov

Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at \( \sqrt{s}=13 \) TeV

A search for dark matter particles is performed using events with large missing transverse momentum, at least one energetic jet, and no leptons, in proton-proton collisions at \( \sqrt{s}=13 \) TeV collected with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 12.9 fb−1. The search includes events with jets from the hadronic decays of a W or ...

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

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 ...

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