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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 ...

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, ...

Search for massive resonances decaying into WW, WZ or ZZ bosons in proton-proton collisions at \( \sqrt{s}=13 \) TeV

A search is presented for new massive resonances decaying to WW, WZ or ZZ bosons in \( \ell \nu q\overline{q} \) and \( q\overline{q}q\overline{q} \) final states. Results are based on data corresponding to an integrated luminosity of 2.3-2.7 fb−1 recorded in proton-proton collisions at \( \sqrt{s}=13 \) TeV with the CMS detector at the LHC. Decays of spin-1 and spin-2 resonances ...

Measurement and QCD analysis of double-differential inclusive jet cross sections in pp collisions at \( \sqrt{s}=8 \) TeV and cross section ratios to 2.76 and 7 TeV

A measurement of the double-differential inclusive jet cross section as a function of the jet transverse momentum p T and the absolute jet rapidity |y| is presented. Data from LHC proton-proton collisions at \( \sqrt{s}=8 \) TeV, corresponding to an integrated luminosity of 19.7 fb−1, have been collected with the CMS detector. Jets are reconstructed using the anti-k T clustering ...

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 ...

Search for anomalous Wtb couplings and flavour-changing neutral currents in t-channel single top quark production in pp collisions at \( \sqrt{s}=7 \) and 8 TeV

Single top quark events produced in the t channel are used to set limits on anomalous Wtb couplings and to search for top quark flavour-changing neutral current (FCNC) interactions. The data taken with the CMS detector at the LHC in proton-proton collisions at \( \sqrt{s}=7 \) and 8 TeV correspond to integrated luminosities of 5.0 and 19.7 fb−1, respectively. The analysis is ...

Search for heavy resonances decaying to tau lepton pairs in proton-proton collisions at \( \sqrt{s}=13 \) TeV

A search for heavy resonances that decay to tau lepton pairs is performed using proton-proton collisions at \( \sqrt{s}=13 \) TeV. The data were collected with the CMS detector at the CERN LHC and correspond to an integrated luminosity of 2.2 fb−1. The observations are in agreement with standard model predictions. An upper limit at 95% confidence level on the product of the ...

Measurement of the production cross section of a W boson in association with two b jets in pp collisions at \(\sqrt{s} = 8{\,\mathrm{{TeV}}} \)

original author(s) and the 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 Institut für Hochenergiephysik der OeAW, Wien, Austria W. Adam, E. Asilar, T. Bergauer, J. Brandstetter, E. Brondolin, M. Dragicevic, J. Erö, M. Flechl, M. Friedl, R. Frühwirth1, V. M

Search for top quark decays via Higgs-boson-mediated flavor-changing neutral currents in pp collisions at \( \sqrt{s}=8 \) TeV

A search is performed for Higgs-boson-mediated flavor-changing neutral currents in the decays of top quarks. The search is based on proton-proton collision data corresponding to an integrated luminosity of 19.7 fb−1 at a center-of-mass energy of 8 TeV collected with the CMS detector at the LHC. Events in which a top quark pair is produced with one top quark decaying into a charm or ...

Measurement of the transverse momentum spectra of weak vector bosons produced in proton-proton collisions at \( \sqrt{s}=8 \) TeV

The transverse momentum spectra of weak vector bosons are measured in the CMS experiment at the LHC. The measurement uses a sample of proton-proton collisions at \( \sqrt{s}=8 \) TeV, collected during a special low-luminosity running that corresponds to an integrated luminosity of 18.4 ± 0.5 pb−1. The production of W bosons is studied in both electron and muon decay modes, while ...

Searches for invisible decays of the Higgs boson in pp collisions at \( \sqrt{s} \) = 7, 8, and 13 TeV

Searches for invisible decays of the Higgs boson are presented. The data collected with the CMS detector at the LHC correspond to integrated luminosities of 5.1, 19.7, and 2.3 fb−1 at centre-of-mass energies of 7, 8, and 13 TeV, respectively. The search channels target Higgs boson production via gluon fusion, vector boson fusion, and in association with a vector boson. Upper limits ...

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