Natural and Mathematical Sciences
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Axial-tensor meson family at T≠0
(Springer Nature, 2020-10-12)The mass and decay constants of rho(2), omega(2) and a missing member in the 2(--) nonet along with their first excited states are analyzed by the Thermal QCD sum rules approach, including QCD condensates up to dimension ... -
Independently randomized symmetric policies are optimal for exchangeable stochastic teams with infinitely many decision makers
(IEEE, 2020-12-14)We study stochastic team (known also as decentralized stochastic control or identical interest stochastic game) problems with large or countably infinite number of decision makers, and characterize existence and structural ... -
Large deviations for local mass of branching Brownian motion
(Instituto Nacional de Matematica Pura e Aplicada, 2020)We study the local mass of a dyadic branching Brownian motion Z evolving in R-d. By 'local mass', we refer to the number of particles of Z that fall inside a ball with fixed radius and time-dependent center, lying in the ... -
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 ... -
Measurement of tt¯ normalised multi-differential cross sections in pp collisions at s√=13 TeV, and simultaneous determination of the strong coupling strength, top quark pole mass, and parton distribution functions
(Springer Nature, 2020-07-22)Normalised multi-differential cross sections for top quark pair (t (t) over bar) production are measured in proton-proton collisions at a centre-of-mass energy of 13 TeV using events containing two oppositely charged ... -
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 ... -
Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions
(IOP Publishing, 2020-10)A template fitting technique for reconstructing the amplitude of signals produced by the lead tungstate crystals of the CMS electromagnetic calorimeter is described. This novel approach is designed to suppress the contribution ... -
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 ... -
Approximate markov-nash equilibria for discrete-time risk-sensitive mean-field games
(Informs, 2020-11)In this paper, we study a class of discrete-time mean-field games under the infinite-horizon risk-sensitive optimality criterion. Risk sensitivity is introduced for each agent (player) via an exponential utility function. ... -
Investigation into the event-activity dependence of ϒ(nS) relative production in proton-proton collisions at s√ = 7 TeV
(Springer Nature, 2020-11-02)The ratios of the production cross sections between the excited gamma(2S) and gamma(3S) mesons and the gamma(1S) ground state, detected via their decay into two muons, are studied as a function of the number of charged ... -
LHC constraints on W′, Z′ that couple mainly to third generation fermions
(Springer Nature, 2020-11-03)We use the results of CMS and ATLAS searches for resonances that decay to tau nu or tb and tau(+)tau(-) or t (t) over bar final states to constrain the parameters of non-universal W' and Z' gauge bosons that couple ... -
W + W − boson pair production in proton-proton collisions at √s = 13 TeV
(American Physical Society, 2020-11-09)A measurement of the W+W- boson pair production cross section in proton-proton collisions at root s = 13 TeV is presented. The data used in this study are collected with the CMS detector at the CERN LHC and correspond to ... -
Search for decays of the 125 GeV Higgs boson into a Z boson and a ρ or ϕ meson
(Springer Nature, 2020-11-10)Decays of the 125 GeV Higgs boson into a Z boson and a ρ0(770) or ϕ(1020) meson are searched for using proton-proton collision data collected by the CMS experiment at the LHC at s = 13 TeV. The analysed data set corresponds ... -
Measurement of Bc(2S)+ and Bc*(2S)+ cross section ratios in proton-proton collisions at s=13 TeV
(American Physical Society, 2020-11-16)The ratios of the B-c (2S)(+) to B-c(+), B-c(*)(2S)(+) to B-c(+), and Bc(2S)(+) to Bco2STHORNthorn production cross sections are measured in proton-proton collisions at root s = 13 TeV, using a data sample collected by the ... -
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 ... -
Measurement of the top quark Yukawa coupling from t¯t kinematic distributions in the dilepton final state in proton-proton collisions at √s = 13 TeV
(American Physical Society, 2020-11-30)A measurement of the Higgs boson Yukawa coupling to the top quark is presented using proton-proton collision data at root s = 13 TeV, corresponding to an integrated luminosity of 137 fb(-1), recorded with the CMS detector. ... -
Measurements of the W boson rapidity, helicity, double-differential cross sections, and charge asymmetry in pp collisions at √ s = 13 TeV
(American Physical Society, 2020-11-20)The differential cross section and charge asymmetry for inclusive W boson production at root s = 13 TeV is measured for the two transverse polarization states as a function of the W boson absolute rapidity. The measurement ... -
Overcharging dilaton black holes in (2+1) dimensions to extremality and beyond
(World Scientific Publishing Co Pte Lt, 2020-12)We test whether static charged dilaton black holes in (2 + 1) dimensions can be turned into naked singularities by sending in test particles from infinity. We derive that overcharging is possible and generic for both ... -
Measurement of single-diffractive dijet production in proton–proton collisions at s√=8 TeV with the CMS and TOTEM experiments
(Springer Nature, 2020-12)Measurements are presented of the single-diffractive dijet cross section and the diffractive cross section as a function of the proton fractional momentum loss xi and the four-momentum transfer squared t. Both processes ... -
Search for bottom-type, vectorlike quark pair production in a fully hadronic final state in proton-proton collisions at √s = 13 TeV
(American Physical Society, 2020-12-07)A search is described for the production of a pair of bottom-type vectorlike quarks (VLQs), each decaying into a b or (b) over bar quark and either a Higgs or a Z boson, with a mass greater than 1000 GeV. The analysis is ...
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