Browsing Natural and Mathematical Sciences by Author "1"
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Alignment of the CMS tracker with LHC and cosmic ray data
Chatrchyan, S.; Işıldak, Bora (IOP Publishing, 2014-06)Results are reported from a search for supersymmetry in pp collisions at a center-of-mass energy of 8 TeV, based on events with a single isolated lepton (electron or muon) and multiple jets, at least two of which are ... -
Angular analysis and branching fraction measurement of the decay B-0 -> K*(0)mu(+)mu(-)
Chatrchyan, S.; Işıldak, Bora (Elsevier, 2013-11-25)The angular distributions and the differential branching fraction of the decay B0→K⁎(892)0μ+μ− are studied using a data sample corresponding to an integrated luminosity of 5.2 fb−1 collected with the CMS detector at the ... -
Angular analysis of the decay B + → K + μ + μ − in proton-proton collisions at √s =8 TeV
Sirunyan, A. M.; Işıldak, Bora (American Physical Society, 2018-12-01)The angular distribution of the flavor-changing neutral current decay B+→K+μ+μ- is studied in proton-proton collisions at a center-of-mass energy of 8 TeV. The analysis is based on data collected with the CMS detector at ... -
Angular analysis of the decay B0→K*0μ+μ- from pp collisions at s=8 TeV
Khachatryan, V.; Işıldak, Bora (Elsevier, 2016-02-10)The angular distributions and the differential branching fraction of the decay B0→K⁎(892)0μ+μ− are studied using data corresponding to an integrated luminosity of 20.5 fb−1 collected with the CMS detector at the LHC in pp ... -
Angular coefficients of Z bosons produced in pp collisions at s=8 TeV and decaying to μ+μ- as a function of transverse momentum and rapidity
Khachatryan, V.; Işıldak, Bora (Elsevier, 2015-11-12)Measurements of the five most significant angular coefficients, A0 through A4, for Z bosons produced in pp collisions at View the MathML source and decaying to μ+μ− are presented as a function of the transverse momentum ... -
An approach to nonlinear viscoelasticity via metric gradient flows
Mielke, A.; Ortner, C.; Şengül, Yasemin (SIAM, 2014)We formulate quasistatic nonlinear finite-strain viscoelasticity of rate type as a gradient system. Our focus is on nonlinear dissipation functionals and distances that are related to metrics on weak diffeomorphisms and ... -
Approximate markov-nash equilibria for discrete-time risk-sensitive mean-field games
Saldı, Naci; Basar, T.; Raginsky, M. (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. ... -
Approximate nash equilibria in partially observed stochastic games with mean-field interactions
Saldı, Naci; Başar, T.; Raginsky, M. (Informs, 2019-08)Establishing the existence of Nash equilibria for partially observed stochastic dynamic games is known to be quite challenging, with the difficulties stemming from the noisy nature of the measurements available to individual ... -
Approximation by special values of Dirichlet series
Çelik, Şermin Çam; Göral, H. (American Mathematical Society, 2020)The classification of the irreducible unitary representations of the stabilizer of the horocycles of a homogeneous tree of finite degree is well-known. In this article we use these stabilizers to form an Olshanski pair and ... -
Approximations for constrained Markov decision problems
Saldı, Naci; Linder, T.; Yüksel, S. (Springer, 2018)This chapter studies the finite-state approximation of a discrete-time constrained Markov decision process with compact state space, under the discounted and average cost criteria. Using the linear programming formulation ... -
Approximations for partially observed Markov decision processes
Saldı, Naci; Linder, T.; Yüksel, S. (Birkhäuser Basel, 2018)This chapter studies the finite-model approximation of discrete-time partially observed Markov decision process. We will find that by performing the standard reduction method, where one transforms a partially observed model ... -
Asymptotic optimality of finite model approximations for partially observed markov decision processes with discounted cost
Saldı, Naci; Yuksel, S.; Linder, T. (IEEE, 2020-01)We consider finite model approximations of discrete-time partially observed Markov decision processes (POMDPs) under the discounted cost criterion. After converting the original partially observed stochastic control problem ... -
Asymptotic optimality of finite models for witsenhausen’s counterexample and beyond
Saldı, Naci; Linder, T.; Yüksel, S. (Birkhäuser Basel, 2018)In this chapter, we study the approximation of Witsenhausen’s counterexample and the Gaussian relay channel problem by using the results of the previous chapter. In particular, our goal is to establish that finite models ... -
Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at √sNN= 5.02 TeV
Sirunyan, A. M.; Işıldak, Bora (Elsevier, 2018-01)The Fourier coefficients v(2) and v(3) characterizing the anisotropy of the azimuthal distribution of charged particles produced in PbPb collisions at root S-NN = 5.02 TeV are measured with data collected by the CMS ... -
Azimuthal decorrelation of jets widely separated in rapidity in pp collisions at s√=7s=7 TeV
Khachatryan, V.; Işıldak, Bora (Springer International Publishing, 2018)The decorrelation in the azimuthal angle between the most forward and the most backward jets (Mueller-Navelet jets) is measured in data collected in pp collisions with the CMS detector at the LHC at s√=7s=7 TeV. The ... -
Azimuthal separation in nearly back-to-back jet topologies in inclusive 2- and 3-jet events in pp collisions at s√=13TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2019-09)A measurement for inclusive 2- and 3-jet events of the azimuthal correlation between the two jets with the largest transverse momenta, Delta phi(12), is presented. The measurement considers events where the two leading ... -
B → T transition form factors in light-cone sum rules
Aliev, T. M.; Dağ, Hüseyin; Kokulu, A.; Ozpineci, A. (American Physical Society, 2019-11-11)We present a new calculation of the semileptonic tree-level and flavor-changing neutral current form factors describing B-meson transitions to tensor mesons T ¼ D2, K2, a2, f2 (JP ¼ 2þ). We employ the QCD light-cone sum ... -
Beyond nPDFs effects: prompt J/ψ and ψ(2S) production in pPb and pp collisions
Oh, G.; Sirunyan, A. M.; Işıldak, Bora (Elsevier, 2019-02)A multi-dimensional analysis of prompt charmonia in pp and pPb collisions at root s(NN) = 5.02 TeV with the CMS detector is presented. The pPb differential cross-sections of prompt J/psi are shown in a wide kinematic region, ... -
Bose-Einstein correlations of charged hadrons in proton-proton collisions at s√ = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (Springer Nature, 2020-03-03)Bose-Einstein correlations of charged hadrons are measured over a broad multiplicity range, from a few particles up to about 250 reconstructed charged hadrons in proton-proton collisions at <mml:msqrt>s</mml:msqrt> = 13 ... -
Calibration of the CMS hadron calorimeters using proton-proton collision data at √s = 13 TeV
Sirunyan, A. M.; Işıldak, Bora (IOP Publishing, 2020-05)Methods are presented for calibrating the hadron calorimeter system of theCMSetector at the LHC. The hadron calorimeters of the CMS experiment are sampling calorimeters of brass and scintillator, and are in the form of one ...
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