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Trapping in proton irradiated p+-n-n+ silicon sensors at fluences anticipated at the HL-LHC outer tracker
(2016)Journal of InstrumentationThe degradation of signal in silicon sensors is studied under conditions expected at the CERN High-Luminosity LHC. 200 μm thick n-type silicon sensors are irradiated with protons of different energies to fluences of up to 3 · 10¹⁵ neq/cm². Pulsed red laser light with a wavelength of 672 nm is used to generate electron-hole pairs in the sensors. The induced signals are used to determine the charge collection efficiencies separately for ...Journal Article -
Measurement of simplified template cross sections of the Higgs boson produced in association with W or Z bosons in the H → bb¯ decay channel in proton-proton collisions at √s = 13 TeV
(2024)Physical Review DDifferential cross sections are measured for the standard model Higgs boson produced in association with vector bosons (W, Z) and decaying to a pair of b quarks. Measurements are performed within the framework of the simplified template cross sections. The analysis relies on the leptonic decays of the W and Z bosons, resulting in final states with 0, 1, or 2 electrons or muons. The Higgs boson candidates are either reconstructed from pairs ...Journal Article -
Combination of Measurements of the Top Quark Mass from Data Collected by the ATLAS and CMS Experiments at √s = 7 and 8 TeV
(2024)Physical Review LettersA combination of fifteen top quark mass measurements performed by the ATLAS and CMS experiments at the LHC is presented. The datasets used correspond to an integrated luminosity of up to 5 and Formula Presented of proton-proton collisions at center-of-mass energies of 7 and 8 TeV, respectively. The combination includes measurements in top quark pair events that exploit both the semileptonic and hadronic decays of the top quark, and a ...Journal Article -
Searches for electroweak neutralino and chargino production in channels with Higgs, Z, and W bosons in pp collisions at 8 TeV
(2014)Physical Review DSearches for supersymmetry (SUSY) are presented based on the electroweak pair production of neutralinos and charginos, leading to decay channels with Higgs, Z, and W bosons and undetected lightest SUSY particles (LSPs). The data sample corresponds to an integrated luminosity of about 19.5 fb−1 of proton-proton collisions at a center-of-mass energy of 8 TeV collected in 2012 with the CMS detector at the LHC. The main emphasis is neutralino ...Journal Article -
Measurement of the B(0) Production Cross Section in pp Collisions at root s=7 TeV
(2011)Physical Review LettersJournal Article -
Measurements of jet multiplicity and differential production cross sections of Z+jets events in proton-proton collisions at √s =7TeV
(2015)Physical Review DMeasurements of differential cross sections are presented for the production of a Z boson and at least one hadronic jet in proton-proton collisions at √s = 7 TeV, recorded by the CMS detector, using a data sample corresponding to an integrated luminosity of 4.9 fb⁻¹. The jet multiplicity distribution is measured for up to six jets. The differential cross sections are measured as a function of jet transverse momentum and pseudorapidity ...Journal Article -
Measurement of the rapidity and transverse momentum distributions of Z bosons in pp collisions at √(s)=7 TeV
(2012)Physical Review DMeasurements of the normalized rapidity (y) and transverse-momentum (qT) distributions of Drell–Yan muon and electron pairs in the Z-boson mass region (60 < 𝑀�ll < 120 GeV) are reported. The results are obtained using a data sample of proton-proton collisions at a center-of-mass energy of 7 TeV, collected by the CMS experiment at the Large Hadron Collider (LHC), corresponding to an integrated luminosity of 36 pb⁻¹. The distributions ...Journal Article -
Search for Narrow Trijet Resonances in Proton-Proton Collisions at Formula Presented
(2024)Physical Review LettersThe first search for singly produced narrow resonances decaying to three well-separated hadronic jets is presented. The search uses proton-proton collision data corresponding to an integrated luminosity of 138 fb⁻¹ at √s = 13 TeV, collected at the CERN LHC. No significant deviations from the background predictions are observed between 1.75 and 9.00 TeV. The results provide the first mass limits on a right-handed boson Z_R decaying to ...Journal Article -
Search for ZZ and ZH production in the bbbb final state using proton-proton collisions at √s = 13 TeV
(2024)The European Physical Journal CA search for ZZ and ZH production in the bb¯bb¯ final state is presented, where H is the standard model (SM) Higgs boson. The search uses an event sample of proton-proton collisions corresponding to an integrated luminosity of 133fb-1 collected at a center-of-mass energy of 13TeV with the CMS detector at the CERN LHC. The analysis introduces several novel techniques for deriving and validating a multi-dimensional background model based ...Journal Article -
Search for pair production of scalar and vector leptoquarks decaying to muons and bottom quarks in proton-proton collisions at √s = 13 TeV
(2024)Physical Review DA search for pair production of scalar and vector leptoquarks (LQs) each decaying to a muon and a bottom quark is performed using proton-proton collision data collected at √s = 13 TeV with the CMS detector at the CERN LHC, corresponding to an integrated luminosity of 138 fb⁻¹. No excess above standard model expectation is observed. Scalar (vector) LQs with masses less than 1810 (2120) GeV are excluded at 95% confidence level, assuming a ...Journal Article