Search
Now showing items 1-8 of 8
Investigation into the event-activity dependence of ϒ(nS) relative production in proton-proton collisions at s= 7 TeV
(Journal of High Energy Physics, 2020)
The ratios of the production cross sections between the excited ϒ(2S) and ϒ(3S) mesons and the ϒ(1S) ground state, detected via their decay into two muons, are studied as a function of the number of charged particles in ...
Search for direct top squark pair production in events with one lepton, jets, and missing transverse momentum at 13 TeV with the CMS experiment
(Journal of High Energy Physics, 2020)
A search for direct top squark pair production is presented. The search is based on proton-proton collision data at a center-of-mass energy of 13 TeV recorded by the CMS experiment at the LHC during 2016, 2017, and 2018, ...
Search for dark matter particles produced in association with a Higgs boson in proton-proton collisions at √s = 13 TeV
(Journal of High Energy Physics, 2020)
A search for dark matter (DM) particles is performed using events with a Higgs boson candidate and large missing transverse momentum. The analysis is based on proton- proton collision data at a center-of-mass energy of 13 ...
Measurement of the cross section for t t ¯ production with additional jets and b jets in pp collisions at √s = 13 TeV
(Journal of High Energy Physics, 2020)
Measurements of the cross section for the production of top quark pairs in association with a pair of jets from bottom quarks (σtt ¯bb ¯) and in association with a pair of jets from quarks of any flavor or gluons (σtt ¯jj) ...
Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at √s = 13 TeV
(Journal of High Energy Physics, 2021)
A search is presented for a Higgs boson that is produced via vector boson fusion and that decays to an undetected particle and an isolated photon. The search is performed by the CMS collaboration at the LHC, using a data ...
Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at √s = 13 TeV
(Journal of High Energy Physics, 2020)
The parton-level top quark (t) forward-backward asymmetry and the anomalous chromoelectric (d̂ t) and chromomagnetic (μ̂ t) moments have been measured using LHC pp collisions at a center-of-mass energy of 13 TeV, collected ...
Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s=13 TeV
(Journal of High Energy Physics, 2019)
A search for dark matter produced in association with top quarks in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. The data set used corresponds to an integrated luminosity of 35.9 fb −1 recorded ...
Search for dark matter and unparticles in events with a Z boson and missing transverse momentum in proton-proton collisions at √s=13 TeV
(Journal of High Energy Physics, 2017)
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. ...