A5023027410- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Cosmology and Gravitation Theories
- Computational Physics and Python Applications
- Astrophysics and Cosmic Phenomena
- Language, Metaphor, and Cognition
- Hearing Impairment and Communication
- Black Holes and Theoretical Physics
- Radiation Detection and Scintillator Technologies
- Muon and positron interactions and applications
- Superconducting Materials and Applications
- Categorization, perception, and language
- Atomic and Subatomic Physics Research
- Particle Accelerators and Free-Electron Lasers
- Distributed and Parallel Computing Systems
- Medical Imaging Techniques and Applications
- Educational Methods and Analysis
- advanced mathematical theories
- linguistics and terminology studies
- Hand Gesture Recognition Systems
- EFL/ESL Teaching and Learning
Abdullah Gül University
2022-2023
Boğaziçi University
2007-2020
ORCID
2020
Purdue University West Lafayette
2008-2019
Işık University
2011-2019
Ankara University
2019
Istanbul Medipol University
2015-2017
Gaziantep University
2014-2015
Doğuş University
2008-2015
Istanbul Technical University
1994-2014
A search for the Standard Model Higgs boson in proton-proton collisions with ATLAS detector at LHC is presented. The datasets used correspond to integrated luminosities of approximately 4.8 fb^-1 collected sqrt(s) = 7 TeV 2011 and 5.8 8 2012. Individual searches channels H->ZZ^(*)->llll, H->gamma gamma H->WW->e nu mu data are combined previously published results H->ZZ^(*), WW^(*), bbbar tau^+tau^- from improved analyses H->ZZ^(*)->llll data. Clear evidence production a neutral measured mass...
The ATLAS detector as installed in its experimental cavern at point 1 CERN is described this paper. A brief overview of the expected performance when Large Hadron Collider begins operation also presented.
By using the ATLAS detector, observations have been made of a centrality-dependent dijet asymmetry in collisions lead ions at Large Hadron Collider. In sample lead-lead events with per-nucleon center mass energy 2.76 TeV, selected minimum bias trigger, jets are reconstructed fine-grained, longitudinally segmented electromagnetic and hadronic calorimeters. The transverse energies dijets opposite hemispheres observed to become systematically more unbalanced increasing event centrality leading...
A detailed study is presented of the expected performance ATLAS detector. The reconstruction tracks, leptons, photons, missing energy and jets investigated, together with b-tagging trigger. physics potential for a variety interesting processes, within Standard Model beyond, examined. comprises series notes based on simulations detector particular emphasis given to data from first years operation LHC at CERN.
A combined search for the Standard Model Higgs boson with ATLAS experiment at LHC using datasets corresponding to integrated luminosities from 1.04 fb-1 4.9 of pp collisions collected sqrt(s) = 7 TeV is presented. The mass ranges 112.9-115.5 GeV, 131-238 GeV and 251-466 are excluded 95% confidence level (CL), while range 124-519 expected be in absence a signal. An excess events observed around mH ~ 126 local significance 3.5 standard deviations (sigma). H -> gamma gamma, ZZ(*) lll'l' WW(*)...
Two-particle correlations in relative azimuthal angle (Δø) and pseudorapidity (Δη) are measured sqrt[s(NN)] = 5.02 TeV p+Pb collisions using the ATLAS detector at LHC. The measurements performed approximately 1 μb(-1) of data as a function transverse momentum (p(T)) energy (ΣE(T)(Pb)) summed over 3.1 < η 4.9 direction Pb beam. correlation function, constructed from charged particles, exhibits long-range (2 |Δ | 5) "near-side" (Δø ~ 0) that grows rapidly with increasing ΣE(T)(Pb). A...
Studies of the spin and parity quantum numbers Higgs boson are presented, based on proton-proton collision data collected by ATLAS experiment at LHC. The Standard Model spin-parity JP = 0+ hypothesis is compared with alternative hypotheses using decays H->gamma gamma, H -> ZZ 4 leptons H->WW l nu nu, as well combination these channels. analysed dataset corresponds to an integrated luminosity 20.7 fb-1 a centre-of-mass energy sqrt(s) 8 TeV. For 4-lepton decay mode corresponding 4.6 7 TeV...
The luminosity calibration for the ATLAS detector at LHC during pp collisions sqrt(s) = 7 TeV in 2010 and 2011 is presented. Evaluation of scale performed using several luminosity-sensitive detectors, comparisons are made long-term stability accuracy this applied to TeV. A uncertainty Delta L/L +/- 3.5% obtained 47 pb-1 data delivered 2010, an 1.8% 5.5 fb-1 2011.
Measurements are presented from proton–proton collisions at centre-of-mass energies of , 2.36 and 7 TeV recorded with the ATLAS detector LHC. Events were collected using a single-arm minimum-bias trigger. The charged-particle multiplicity, its dependence on transverse momentum pseudorapidity relationship between mean multiplicity measured. in different regions phase space shown, providing diffraction-reduced measurements as well more inclusive ones. observed distributions corrected to...
Differential measurements of charged particle azimuthal anisotropy are presented for lead-lead collisions at sqrt(s_NN) = 2.76 TeV with the ATLAS detector LHC, based on an integrated luminosity approximately 8 mb^-1. This is characterized via a Fourier expansion distribution particles in angle (phi), coefficients v_n denoting magnitude anisotropy. Significant v_2-v_6 values obtained as function transverse momentum (0.5<pT<20 GeV), pseudorapidity (|eta|<2.5) and centrality using event plane...
Detailed measurements of the electron performance ATLAS detector at LHC are reported, using decays Z, W and J/psi particles. Data collected in 2010 sqrt(s)=7 TeV used, corresponding to an integrated luminosity almost 40 pb^-1. The inter-alignment inner electromagnetic calorimeter, determination energy scale resolution, terms response uniformity linearity discussed. identification, reconstruction trigger efficiencies, as well charge misidentification probability, also presented.
A search for squarks and gluinos in final states containing jets, missing transverse momentum no electrons or muons is presented. The data were recorded by the ATLAS experiment s=7TeV proton–proton collisions at Large Hadron Collider. No excess above Standard Model background expectation was observed 35pb−1 of analysed data. Gluino masses below 500 GeV are excluded 95% confidence level simplified models only first two generations, a gluino octet massless neutralino. exclusion increases to...
Proton–proton collisions at $\sqrt{s}=7$ TeV and heavy ion $\sqrt{s_{NN}}=2.76$ were produced by the LHC recorded using ATLAS experiment’s trigger system in 2010. The is designed with a maximum bunch crossing rate of 40 MHz to record approximately 200 these per second. selects events rapidly identifying signatures muon, electron, photon, tau lepton, jet, B meson candidates, as well global event signatures, such missing transverse energy. An overview system, evolution during 2010 performance...
The measurement of missing transverse momentum in the ATLAS detector, described this paper, makes use full event reconstruction and a calibration based on reconstructed physics objects. performance is evaluated using data collected pp collisions at centre-of-mass energy 7 TeV 2010. Minimum bias events with jets hadrons are used from samples corresponding to an integrated luminosity about 0.3 nb−1 600 respectively, together containing Z boson decaying two leptons (electrons or muons) W lepton...
This paper describes the measurement of elliptic flow charged particles in lead-lead collisions at sqrt(s_NN) = 2.76 TeV using ATLAS detector Large Hadron Collider (LHC). The results are based on an integrated luminosity approximately 7 ub^-1. Elliptic is measured over a wide region pseudorapidity, |eta| < 2.5, and broad range transverse momentum, 0.5 p_T 20 GeV. parameter v_2 obtained by correlating individual tracks with event plane energy deposited forward calorimeters. As function...
The production cross sections of the inclusive Drell-Yan processes ${W}^{\ifmmode\pm\else\textpm\fi{}}\ensuremath{\rightarrow}\ensuremath{\ell}\ensuremath{\nu}$ and $Z/{\ensuremath{\gamma}}^{*}\ensuremath{\rightarrow}\ensuremath{\ell}\ensuremath{\ell}$ ($\ensuremath{\ell}=e$, $\ensuremath{\mu}$) are measured in proton-proton collisions at $\sqrt{s}=7\text{ }\text{ }\mathrm{TeV}$ with ATLAS detector. reported integrated over a fiducial kinematic range, extrapolated to full also evaluated...
Measurements of inclusive jet suppression in heavy ion collisions at the LHC provide direct sensitivity to physics quenching. In a sample lead-lead sqrt(s) = 2.76 TeV corresponding an integrated luminosity approximately 7 inverse microbarns, ATLAS has measured jets with calorimeter over pseudorapidity interval |eta| < 2.1 and transverse momentum range 38 pT 210 GeV. Jets were reconstructed using anti-kt algorithm values for distance parameter that determines nominal radius R 0.2, 0.3, 0.4...
A bstract The distributions of event-by-event harmonic flow coefficients v n for = 2- 4 are measured in $ \sqrt{{{s_{NN }}}} 2 . 76 TeV Pb + collisions using the ATLAS detector at LHC. measurements performed charged particles with transverse momentum p T > 0 5 GeV and pseudorapidity range | η < a dataset approximately 7 μ b −1 recorded 2010. shapes suggest that associated vectors described by two-dimensional Gaussian function central over most centrality 3 Significant deviations from...
The measurement of the jet energy resolution is presented using data recorded with ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV. sample corresponds to an integrated luminosity 35 pb-1. Jets are reconstructed from deposits measured by calorimeters and calibrated different calibration schemes. two situ methods which found be agreement within uncertainties. total uncertainties on these measurements range 20% 10% for jets |y|<2.8 transverse momenta increasing 30 GeV 500 GeV....
Inclusive jet and dijet cross sections have been measured in proton-proton collisions at a center-of-mass energy of 7 TeV using the ATLAS detector Large Hadron Collider. The were jets clustered with anti-${k}_{t}$ algorithm parameters $R=0.4$ $R=0.6$. These measurements are based on 2010 data sample, consisting total integrated luminosity $37\text{ }\text{ }{\mathrm{pb}}^{\ensuremath{-}1}$. double-differential presented as function transverse momentum, bins rapidity. Dijet studied invariant...
The production of W bosons in association with two jets proton-proton collisions at a centre-of-mass energy sqrt(s)=7 TeV has been analysed for the presence double-parton interactions using data corresponding to an integrated luminosity 36/pb, collected ATLAS detector LHC. fraction events arising from interactions, fDP(D) measured through momentum balance between and amounts = 0.08 +- 0.01 (stat.) 0.02 (sys) transverse PT > 20 GeV rapidity |y|<2.8. This corresponds measurement effective area...
In order to study further the long-range correlations ("ridge") observed recently in p+Pb collisions at sNN=5.02TeV, second-order azimuthal anisotropy parameter of charged particles, v2, has been measured with cumulant method using ATLAS detector LHC. a data sample corresponding an integrated luminosity approximately 1μb−1, v2 obtained two- and four-particle cumulants over pseudorapidity range |η|<2.5. The results are presented as function transverse momentum event activity, defined terms...