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Identification of heavy, energetic, hadronically decaying particles using machine-learning techniques
(IOP Publishing, 2020-06)
Machine-learning (ML) techniques are explored to identify and classify hadronic decays of highly Lorentz-boosted W/Z/Higgs bosons and top quarks. Techniques without ML have also been evaluated and are included for comparison. ...
Measurement of electroweak production of a W boson in association with two jets in proton–proton collisions at s√=13 TeV
(Springer Nature, 2020-01-18)
A measurement is presented of electroweak (EW) production of a W boson in association with two jets in proton-proton collisions at root s = 13 TeV. The data sample was recorded by the CMS Collaboration at the LHC and ...
Search for physics beyond the standard model in events with jets and two same-sign or at least three charged leptons in proton-proton collisions at √s=13 TeV
(Springer Nature, 2020-08-18)
A data sample of events from proton-proton collisions with at least two jets, and two isolated same-sign or three or more charged leptons, is studied in a search for signatures of new physics phenomena. The data correspond ...
Search for physics beyond the standard model in multilepton final states in proton-proton collisions at s√ = 13 TeV
(Springer Nature, 2020-03-10)
A search for physics beyond the standard model in events with at least three charged leptons (electrons or muons) is presented. The data sample corresponds to an integrated luminosity of 137 fb(-1) of proton-proton collisions ...
Strange hadron production in pp and pPb collisions at √sNN = 5.02 TeV
(American Physical Society, 2020-06-22)
The transverse momentum (pT) distributions of Lambda, Xi(-), and Omega(-) baryons, their antiparticles, and K-S(0) mesons are measured in proton-proton (pp) and proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass ...
Running of the top quark mass from proton-proton collisions at √s=13 TeV
(Elsevier, 2020-04-10)
The running of the top quark mass is experimentally investigated for the first time. The mass of the top quark in the modified minimal subtraction ((MS) over bar) renormalization scheme is extracted from a comparison of ...
Production of Λc + baryons in proton-proton and lead-lead collisions at √sNN=5.02 TeV
(Elsevier, 2020-04-10)
The transverse momentum (P-T) spectra of inclusively produced A c P baryons are measured via the exclusive decay channel Lambda(+)(c) -> pK(-)pi(+) using the CMS detector at the LHC. Spectra are measured as a function of ...
Evidence for top quark production in nucleus-nucleus collisions
(American Physical Society, 2020-11-24)
Ultrarelativistic heavy ion collisions recreate in the laboratory the thermodynamical conditions prevailing in the early universe up to 10(-6) sec, thereby allowing the study of the quark-gluon plasma (QGP), a state of ...
Study of excited Λ0b states decaying to Λ0bπ+π−in proton-proton collisions at √s=13 TeV
(Elsevier, 2020-04-10)
A study of excited Lambda(0)(b) baryons is reported, based on a data sample collected in 2016-2018 with the CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an ...
Search for a heavy Higgs boson decaying to a pair of W bosons in proton-proton collisions at s√ = 13 TeV
(Springer Nature, 2020-03-06)
A search for a heavy Higgs boson in the mass range from 0.2 to 3.0 TeV, decaying to a pair of W bosons, is presented. The analysis is based on proton-proton collisions at = 13 TeV recorded by the CMS experiment at the LHC ...
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