Browsing Natural and Mathematical Sciences by Title
Now showing items 539-558 of 1083
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Performance of the CMS Level-1 trigger in proton-proton collisions at √s = 13 TeV
(2020-10)At the start of Run 2 in 2015, the LHC delivered proton-proton collisions at a center-ofmass energy of 13 TeV. During Run 2 (years 2015-2018) the LHC eventually reached a luminosity of 2.1 x 10(34) cm(-2) s(-1), almost ... -
Performance of the CMS missing transverse momentum reconstruction in pp data at root s=8 TeV
(IOP Publishing, 2015-02)The performance of missing transverse energy reconstruction algorithms is presented using √s=8 TeV proton-proton (pp) data collected with the CMS detector. Events with anomalous missing transverse energy are studied, and ... -
The performance of the CMS muon detector in proton-proton collisions at √ s = 7 TeV at the LHC
(IOP Publishing, 2013-11)The performance of all subsystems of the CMS muon detector has been studied by using a sample of proton-proton collision data at √s = 7 TeV collected at the LHC in 2010 that corresponds to an integrated luminosity of ... -
Performance of the CMS muon trigger system in proton-proton collisions at √(s) = 13
(IOP Publishing, 2021-07)The muon trigger system of the CMS experiment uses a combination of hardware and software to identify events containing a muon. During Run 2 (covering 2015-2018) the LHC achieved instantaneous luminosities as high as 2 × ... -
Performance of the local reconstruction algorithms for the CMS hadron calorimeter with Run 2 data
(IOP Publishing, 2023-11)A description is presented of the algorithms used to reconstruct energy deposited in the CMS hadron calorimeter during Run 2 (2015-2018) of the LHC. During Run 2, the characteristic bunch-crossing spacing for proton-proton ... -
Performance of the reconstruction and identification of high-momentum muons in proton-proton collisions at √s = 13 TeV
(IOP Publishing, 2020-02-28)The CMS detector at the LHC has recorded events from proton-proton collisions, with muon momenta reaching up to 1.8 TeV in the collected dimuon samples. These high-momentum muons allow direct access to new regimes in physics ... -
Phenomenological MSSM interpretation of CMS searches in pp collisions at root s=7 and 8 TeV
(Springer Nature, 2016-10)Searches for new physics by the CMS collaboration are interpreted in the framework of the phenomenological minimal supersymmetric standard model (pMSSM). The data samples used in this study were collected at s√=7s=7 and ... -
Pileup mitigation at CMS in 13 TeV data
(IOP Publishing, 2020-09)With increasing instantaneous luminosity at the LHC come additional reconstruction challenges. At high luminosity, many collisions occur simultaneously within one proton-proton bunch crossing. The isolation of an interesting ... -
Porous materials
(Elsevier, 2018)Natural gas has received significant attention as a cleaner energy source alternative to gasoline. Natural gas consists of mainly methane (CH4); therefore, efficient storage of CH4 is essential to utilize natural gas. ... -
Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 TeV
(Springer Nature, 2015-05)Properties of the Higgs boson with mass near 125GeV are measured in proton-proton collisions with the CMS experiment at the LHC. Comprehensive sets of production and decay measurements are combined. The decay channels ... -
Precision luminosity measurement in proton–proton collisions at √s = 13 TeV in 2015 and 2016 at CMS
(Springer, 2021-09-09)The measurement of the luminosity recorded by the CMS detector installed at LHC interaction point 5, using proton–proton collisions at s=13TeV in 2015 and 2016, is reported. The absolute luminosity scale is measured for ... -
Precision measurement of the structure of the CMS inner tracking system using nuclear interactions
(IOP Publishing, 2018-10-29)The structure of the CMS inner tracking system has been studied using nuclear interactions of hadrons striking its material. Data from proton-proton collisions at a center-of-mass energy of 13 TeV recorded in 2015 at the ... -
Precision measurement of the W boson decay branching fractions in proton-proton collisions at √s = 13 TeV
(American Physical Society, 2022-04-26)The leptonic and inclusive hadronic decay branching fractions of the W boson are measured using proton-proton collision data collected at s=13 TeV by the CMS experiment at the CERN LHC, corresponding to an integrated ... -
Prelude to part I
(Springer, 2018)Part I involves classical stochastic control problems, with a single decision maker acting repeatedly over time with its information set growing at each time stage. -
Prelude to part II
(Springer, 2018)In Part II, we focus on decentralized stochastic control problems and their applications. In Chapter 8, we present our results on the finite model approximation of multi-agent stochastic control problems (team decision ... -
Probing charm quark dynamics via multiparticle correlations in Pb-Pb collisions at √s NN = 5.02 TeV
(American Physical Society, 2022-07-05)Multiparticle azimuthal correlations of prompt D0 mesons are measured in Pb-Pb collisions at a nucleon-nucleon center-of-mass energy of sNN=5.02 TeV. For the first time, a four-particle cumulant method is used to extract ... -
Probing color coherence effects in pp collisions at root s=7 TeV
(Springer Science+Business Media, 2014-06)A study of color coherence effects in pp collisions at a center-of-mass energy of 7 is presented. The data used in the analysis were collected in 2010 with the CMS detector at the LHC and correspond to an integrated ... -
Probing effective field theory operators in the associated production of top quarks with a Z boson in multilepton final states at s√ = 13 TeV
(Springer, 2021-12-13)A search for new top quark interactions is performed within the framework of an effective field theory using the associated production of either one or two top quarks with a Z boson in multilepton final states. The data ... -
Probing heavy majorana neutrinos and the weinberg operator through vector boson fusion processes in proton-proton collisions at √s = 13 TeV
(American Physical Society, 2023-07-06)The first search exploiting the vector boson fusion process to probe heavy Majorana neutrinos and the Weinberg operator at the LHC is presented. The search is performed in the same-sign dimuon final state using a proton-proton ... -
The production of isolated photons in PbPb and pp collisions at √sNN = 5.02 TeV
(Springer Nature, 2020-07-17)The transverse energy (ET gamma) spectra of photons isolated from other particles are measured using proton-proton (pp) and lead-lead (PbPb) collisions at the LHC at root s(NN) = 5.02 TeV with integrated luminosities of ...
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