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166 papers found.
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Search for beyond the standard model Higgs bosons decaying into a \( \mathrm{b}\overline{\mathrm{b}} \) pair in pp collisions at \( \sqrt{s}=13 \) TeV

Abstract A search for Higgs bosons that decay into a bottom quark-antiquark pair and are accompanied by at least one additional bottom quark is performed with the CMS detector. The data analyzed were recorded in proton-proton collisions at a centre-of-mass energy of \( \sqrt{s}=13 \) TeV at the LHC, corresponding to an integrated luminosity of 35.7 fb−1. The final state...

Search for disappearing tracks as a signature of new long-lived particles in proton-proton collisions at \( \sqrt{s}=13 \) TeV

Abstract A search is presented for long-lived charged particles that decay within the CMS detector and produce the signature of a disappearing track. A disappearing track is an isolated track with missing hits in the outer layers of the silicon tracker, little or no energy in associated calorimeter deposits, and no associated hits in the muon detectors. This search uses data...

Measurement of the cross section for top quark pair production in association with a W or Z boson in proton-proton collisions at \( \sqrt{s}=13 \) TeV

Abstract A measurement is performed of the cross section of top quark pair production in association with a W or Z boson using proton-proton collisions at a center-of-mass energy of 13 TeV at the LHC. The data sample corresponds to an integrated luminosity of 35.9 fb−1, collected by the CMS experiment in 2016. The measurement is performed in the same-sign dilepton, three- and...

Measurement of the inelastic proton-proton cross section at \( \sqrt{s}=13 \) TeV

Abstract A measurement of the inelastic proton-proton cross section with the CMS detector at a center-of-mass energy of \( \sqrt{s}=13 \) TeV is presented. The analysis is based on events with energy deposits in the forward calorimeters, which cover pseudorapidities of −6.6 < η < −3.0 and +3.0 < η < +5.2. An inelastic cross section of 68.6 ± 0.5(syst) ± 1.6(lumi) mb is obtained...

Observation of proton-tagged, central (semi)exclusive production of high-mass lepton pairs in pp collisions at 13 TeV with the CMS-TOTEM precision proton spectrometer

, Austria W. Adam, F. Ambrogi, E. Asilar, T. Bergauer, J. Brandstetter, E. Brondolin, M. Dragicevic, J. Ero, A. Escalante Del Valle, M. Flechl, M. Friedl, R. Fruhwirth1, V.M. Ghete, J. Grossmann, J. Hrubec

Electroweak production of two jets in association with a Z boson in proton–proton collisions at \(\sqrt{s}= \) 13 \(\,\text {TeV}\)

A measurement of the electroweak (EW) production of two jets in association with a \(\mathrm {Z} \) boson in proton-proton collisions at \(\sqrt{s}=13\,\text {TeV} \) is presented, based on data recorded in 2016 by the CMS experiment at the LHC corresponding to an integrated luminosity of 35.9\(\,\text {fb}^{\text {--}1}\). The measurement is performed in the \(\ell \ell \mathrm...

Search for a heavy resonance decaying into a Z boson and a vector boson in the \( \nu \overline{\nu}\mathrm{q}\overline{\mathrm{q}} \) final state

Institute, Yerevan, Armenia A.M. Sirunyan, A. Tumasyan Institut fur Hochenergiephysik, Wien, Austria W. Adam, F. Ambrogi, E. Asilar, T. Bergauer, J. Brandstetter, E. Brondolin, M. Dragicevic, J. Ero, A

Azimuthal correlations for inclusive 2-jet, 3-jet, and 4-jet events in pp collisions at \(\sqrt{s}= 13~\hbox {TeV}\)

Azimuthal correlations between the two jets with the largest transverse momenta \(p_{\mathrm {T}}\) in inclusive 2-, 3-, and 4-jet events are presented for several regions of the leading jet \(p_{\mathrm {T}}\) up to 4\(\,\text {Te}\text {V}\). For 3- and 4-jet scenarios, measurements of the minimum azimuthal angles between any two of the three or four leading \(p_{\mathrm {T...

Measurement of the underlying event activity in inclusive Z boson production in proton-proton collisions at \( \sqrt{s}=13 \) TeV

Institute, Yerevan, Armenia A.M. Sirunyan, A. Tumasyan Institut fur Hochenergiephysik, Wien, Austria W. Adam, F. Ambrogi, E. Asilar, T. Bergauer, J. Brandstetter, E. Brondolin, M. Dragicevic, J. Ero, M

Search for high-mass resonances in final states with a lepton and missing transverse momentum at \( \sqrt{s}=13 \) TeV

, Armenia A.M. Sirunyan, A. Tumasyan Institut fur Hochenergiephysik, Wien, Austria W. Adam, F. Ambrogi, E. Asilar, T. Bergauer, J. Brandstetter, E. Brondolin, M. Dragicevic, J. Ero, A. Escalante Del Valle

Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at \( sqrt{s}=13 \) TeV

, Armenia A.M. Sirunyan, A. Tumasyan Institut fur Hochenergiephysik, Wien, Austria W. Adam, F. Ambrogi, E. Asilar, T. Bergauer, J. Brandstetter, E. Brondolin, M. Dragicevic, J. Ero, A. Escalante Del Valle

Search for \( \mathrm{t}\overline{\mathrm{t}}\mathrm{H} \) production in the all-jet final state in proton-proton collisions at \( \sqrt{s}=13 \) TeV

Abstract A search is presented for the associated production of a Higgs boson with a top quark pair in the all-jet final state. Events containing seven or more jets are selected from a sample of proton-proton collisions at \( \sqrt{s}=13 \) TeV collected with the CMS detector at the LHC in 2016, corresponding to an integrated luminosity of 35.9 fb−1. To separate the \( \mathrm{t...

Measurement of prompt and nonprompt charmonium suppression in \(\text {PbPb}\) collisions at 5.02 \(\,\text {Te}\text {V}\)

The nuclear modification factors of \({\mathrm {J}/\psi }\) and \(\psi \text {(2S)}\) mesons are measured in \(\text {PbPb}\) collisions at a centre-of-mass energy per nucleon pair of \(\sqrt{\smash [b]{s_{_{\text {NN}}}}} = 5.02\,\text {Te}\text {V} \). The analysis is based on \(\text {PbPb}\) and \(\mathrm {p}\mathrm {p}\) data samples collected by CMS at the LHC in 2015...

Measurement of b hadron lifetimes in pp collisions at \(\sqrt{s} = 8\) \(\,\text {Te}\text {V}\)

Measurements are presented of the lifetimes of the \({\mathrm {B}^0}\), \(\mathrm {B}^0_\mathrm {s}\), \(\mathrm {\Lambda }_\mathrm {b} ^0\), and \(\mathrm {B}_\mathrm {c}^+\) hadrons using the decay channels \({\mathrm {B}^0}\!\rightarrow \! \mathrm {J}/\psi \mathrm {K^{*}(892)}{}^{0}\), \({\mathrm {B}^0}\!\rightarrow \! \mathrm {J}/\psi \mathrm {K^0_S}\), \(\mathrm {B}^0_...

Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at \( \sqrt{s}=13 \) TeV

Abstract A search for dark matter is conducted in events with large missing transverse momentum and a hadronically decaying, Lorentz-boosted top quark. This study is performed using proton-proton collisions at a center-of-mass energy of 13 TeV, in data recorded by the CMS detector in 2016 at the LHC, corresponding to an integrated luminosity of 36 fb−1. New substructure...

Search for single production of vector-like quarks decaying to a b quark and a Higgs boson

A.M. Sirunyan, A. Tumasyan Institut fur Hochenergiephysik, Wien, Austria W. Adam, F. Ambrogi, E. Asilar, T. Bergauer, J. Brandstetter, E. Brondolin, M. Dragicevic, J. Ero, A. Escalante Del Valle, M

Search for lepton flavour violating decays of the Higgs boson to μτ and eτ in proton-proton collisions at \( \sqrt{s}=13 \) TeV

Abstract A search for lepton flavour violating decays of the Higgs boson in the μτ and eτ decay modes is presented. The search is based on a data set corresponding to an integrated luminosity of 35.9 fb−1 of proton-proton collisions collected with the CMS detector in 2016, at a centre-of-mass energy of 13 TeV. No significant excess over the standard model expectation is observed...

Measurements of differential cross sections of top quark pair production as a function of kinematic event variables in proton-proton collisions at \( \sqrt{s}=13 \) TeV

. Tumasyan Institut fur Hochenergiephysik, Wien, Austria W. Adam, F. Ambrogi, E. Asilar, T. Bergauer, J. Brandstetter, E. Brondolin, M. Dragicevic, J. Ero, A. Escalante Del Valle, M. Flechl, M. Friedl, R

Search for a heavy right-handed W boson and a heavy neutrino in events with two same-flavor leptons and two jets at \( \sqrt{s}=13 \) TeV

, Yerevan Physics Institute, Yerevan, Armenia A.M. Sirunyan, A. Tumasyan Institut fur Hochenergiephysik, Wien, Austria W. Adam, F. Ambrogi, E. Asilar, T. Bergauer, J. Brandstetter, E. Brondolin, M