Search for a heavy vector resonance decaying to a boson and a Higgs boson in proton-proton collisions at .

A search is presented for a heavy vector resonance decaying into a boson and the standard model Higgs boson, where the boson is identified through its leptonic decays to electrons, muons, or neutrinos, and the Higgs boson is identified through its hadronic decays. The search is performed in a Lorentz-boosted regime and is based on data collected from 2016 to 2018 at the CERN LHC, corresponding to an integrated luminosity of 137 . Upper limits are derived on the production of a narrow heavy resonance , and a mass below 3.

MUSiC: a model-unspecific search for new physics in proton-proton collisions at .

Results of the Model Unspecific Search in CMS (MUSiC), using proton-proton collision data recorded at the LHC at a centre-of-mass energy of 13 , corresponding to an integrated luminosity of 35.9 , are presented. The MUSiC analysis searches for anomalies that could be signatures of physics beyond the standard model.

Measurement of the Higgs boson production rate in association with top quarks in final states with electrons, muons, and hadronically decaying tau leptons at .

The rate for Higgs ( ) bosons production in association with either one ( ) or two ( ) top quarks is measured in final states containing multiple electrons, muons, or tau leptons decaying to hadrons and a neutrino, using proton-proton collisions recorded at a center-of-mass energy of by the CMS experiment. The analyzed data correspond to an integrated luminosity of 137 . The analysis is aimed at events that contain , , or decays and each of the top quark(s) decays either to lepton+jets or all-jet channels.

Measurements of production cross sections and constraints on anomalous triple gauge couplings at .

The production of Z boson pairs in proton-proton ( ) collisions, , where or , is studied at a center-of-mass energy of 13 with the CMS detector at the CERN LHC. The data sample corresponds to an integrated luminosity of 137 , collected during 2016-2018. The production cross section, , measured for events with two pairs of opposite-sign, same-flavor leptons produced in the mass region is consistent with standard model predictions.

Search for dark matter produced in association with a leptonically decaying boson in proton-proton collisions at .

A search for dark matter particles is performed using events with a Z boson candidate and large missing transverse momentum. The analysis is based on proton-proton collision data at a center-of-mass energy of 13 , collected by the CMS experiment at the LHC in 2016-2018, corresponding to an integrated luminosity of 137 . The search uses the decay channels and .

Search for top squark pair production using dilepton final states in collision data collected at .

A search is presented for supersymmetric partners of the top quark (top squarks) in final states with two oppositely charged leptons (electrons or muons), jets identified as originating from quarks, and missing transverse momentum. The search uses data from proton-proton collisions at collected with the CMS detector, corresponding to an integrated luminosity of 137 . Hypothetical signal events are efficiently separated from the dominant top quark pair production background with requirements on the significance of the missing transverse momentum and on transverse mass variables.

Measurement of single-diffractive dijet production in proton-proton collisions at with the CMS and TOTEM experiments.

Measurements are presented of the single-diffractive dijet cross section and the diffractive cross section as a function of the proton fractional momentum loss and the four-momentum transfer squared . Both processes and , i.e.

Study of central exclusive production in proton-proton collisions at and 13TeV.

Central exclusive and semiexclusive production of pairs is measured with the CMS detector in proton-proton collisions at the LHC at center-of-mass energies of 5.02 and 13TeV. The theoretical description of these nonperturbative processes, which have not yet been measured in detail at the LHC, poses a significant challenge to models.

Measurement of differential cross sections and charge ratios for -channel single top quark production in proton-proton collisions at .

A measurement is presented of differential cross sections for -channel single top quark and antiquark production in proton-proton collisions at a centre-of-mass energy of 13 by the CMS experiment at the LHC. From a data set corresponding to an integrated luminosity of 35.9 , events containing one muon or electron and two or three jets are analysed.

Search for direct pair production of supersymmetric partners to the lepton in proton-proton collisions at .

A search is presented for slepton pairs produced in proton-proton collisions at a center-of-mass energy of 13 . The search is carried out in events containing two leptons in the final state, on the assumption that each slepton decays primarily to a lepton and a neutralino. Events are considered in which each lepton decays to one or more hadrons and a neutrino, or in which one of the leptons decays instead to an electron or a muon and two neutrinos.

A multi-dimensional search for new heavy resonances decaying to boosted , , or boson pairs in the dijet final state at 13 .

A search in an all-jet final state for new massive resonances decaying to , , or boson pairs using a novel analysis method is presented. The analysis is performed on data corresponding to an integrated luminosity of 77.3 recorded with the CMS experiment at the LHC at a centre-of-mass energy of 13  .

Search for production of four top quarks in final states with same-sign or multiple leptons in proton-proton collisions at .

The standard model (SM) production of four top quarks ( ) in proton-proton collisions is studied by the CMS Collaboration. The data sample, collected during the 2016-2018 data taking of the LHC, corresponds to an integrated luminosity of 137 at a center-of-mass energy of 13 . The events are required to contain two same-sign charged leptons (electrons or muons) or at least three leptons, and jets.

Searches for physics beyond the standard model with the variable in hadronic final states with and without disappearing tracks in proton-proton collisions at .

Two related searches for phenomena beyond the standard model (BSM) are performed using events with hadronic jets and significant transverse momentum imbalance. The results are based on a sample of proton-proton collisions at a center-of-mass energy of , collected by the CMS experiment at the LHC in 2016-2018 and corresponding to an integrated luminosity of 137 . The first search is inclusive, based on signal regions defined by the hadronic energy in the event, the jet multiplicity, the number of jets identified as originating from bottom quarks, and the value of the kinematic variable for events with at least two jets.

Extraction and validation of a new set of CMS pythia8 tunes from underlying-event measurements.

New sets of CMS underlying-event parameters ("tunes") are presented for the pythia8 event generator. These tunes use the NNPDF3.1 parton distribution functions (PDFs) at leading (LO), next-to-leading (NLO), or next-to-next-to-leading (NNLO) orders in perturbative quantum chromodynamics, and the strong coupling evolution at LO or NLO.

Measurement of the average very forward energy as a function of the track multiplicity at central pseudorapidities in proton-proton collisions at .

The average total energy as well as its hadronic and electromagnetic components are measured with the CMS detector at pseudorapidities in proton-proton collisions at a centre-of-mass energy . The results are presented as a function of the charged particle multiplicity in the region . This measurement is sensitive to correlations induced by the underlying event structure over a very wide pseudorapidity region.

Measurements of triple-differential cross sections for inclusive isolated-photon+jet events in collisions at .

Measurements are presented of the triple-differential cross section for inclusive isolated-photon+jet events in collisions at TeV as a function of photon transverse momentum ( ), photon pseudorapidity ( ), and jet pseudorapidity ( ). The data correspond to an integrated luminosity of that probe a broad range of the available phase space, for and , , , and jet transverse momentum, , > 25 . The measurements are compared to next-to-leading order perturbative quantum chromodynamics calculations, which reproduce the data within uncertainties.

Azimuthal separation in nearly back-to-back jet topologies in inclusive 2- and 3-jet events in collisions at .

A measurement for inclusive 2- and 3-jet events of the azimuthal correlation between the two jets with the largest transverse momenta, , is presented. The measurement considers events where the two leading jets are nearly collinear ("back-to-back") in the transverse plane and is performed for several ranges of the leading jet transverse momentum. Proton-proton collision data collected with the CMS experiment at a center-of-mass energy of and corresponding to an integrated luminosity of are used.

Measurement of exclusive photoproduction in ultraperipheral pPb collisions at .

Exclusive photoproduction is measured for the first time in ultraperipheral pPb collisions at with the CMS detector. The cross section is b at for photon-proton centre-of-mass energies between 29 and . The differential cross section is measured in the interval as a function of , where is the squared four-momentum transfer at the proton vertex.

Search for a heavy pseudoscalar boson decaying to a Z and a Higgs boson at .

A search is presented for a heavy pseudoscalar boson decaying to a Z  boson and a Higgs boson with mass of 125 . In the final state considered, the Higgs boson decays to a bottom quark and antiquark, and the Z  boson decays either into a pair of electrons, muons, or neutrinos. The analysis is performed using a data sample corresponding to an integrated luminosity of 35.

Search for supersymmetry in events with a photon, jets, -jets, and missing transverse momentum in proton-proton collisions at 13 .

A search for supersymmetry is presented based on events with at least one photon, jets, and large missing transverse momentum produced in proton-proton collisions at a center-of-mass energy of 13 . The data correspond to an integrated luminosity of 35.9 and were recorded at the LHC with the CMS detector in 2016.

Search for vector-like quarks in events with two oppositely charged leptons and jets in proton-proton collisions at .

A search for the pair production of heavy vector-like partners and of the top and bottom quarks has been performed by the CMS experiment at the CERN LHC using proton-proton collisions at . The data sample was collected in 2016 and corresponds to an integrated luminosity of 35.9 .

Combined measurements of Higgs boson couplings in proton-proton collisions at .

Combined measurements of the production and decay rates of the Higgs boson, as well as its couplings to vector bosons and fermions, are presented. The analysis uses the LHC proton-proton collision data set recorded with the CMS detector in 2016 at , corresponding to an integrated luminosity of 35.9 .

Measurement of the production cross section, the top quark mass, and the strong coupling constant using dilepton events in pp collisions at .

A measurement of the top quark-antiquark pair production cross section in proton-proton collisions at a centre-of-mass energy of 13 is presented. The data correspond to an integrated luminosity of , recorded by the CMS experiment at the CERN LHC in 2016. Dilepton events ( , , ) are selected and the cross section is measured from a likelihood fit.