Nikos D. Giokaris
Nikos D. Giokaris received the B.S. degree in physics and the Ph.D. degree from the University of Athens and the University of Chicago, in 1973 and 1981, respectively. From 1981 to 1984, he held Research Associate positions at Rochester University and Fermilab. From 1984 to 1985, he was a Visiting Assistant Professor at the University of Notre Dame. From 1985 to 1993 and from 1993 to 1996, he held Assistant and Associate Professor positions at Rockefeller University. In 1996, he was appointed as an Associate Professor at the Physics Department of the University of Athens. He participated in a variety of fixed target experiments with hadron, neutrino, and electron beams. Since 1985, he has been a Member of the CDF collider experiment at the Tevatron of Fermilab and since 1994 he is a Member of the ATLAS experiment at CERN where he has led a University of Athens group by participating in the construction and the commissioning of the Hadronic Tile Calorimeter. Among his main contributions are his proposal and the development of high pressure gas calorimetry for high energy/high luminosity colliders, his proposal to use the total transverse energy in top-antitop quark candidate events to separate the signal from the background and, more recently, his proposal and the development of a technique to use the lepton (electron and muon) transverse momentum to obtain an accurate measurement of the top quark mass. He has coauthored more than 300 papers resulting in more than 18000 citations worldwide. Since 1994 he has been a Member of the Physics Advisory Committee for particle physics of the Joint Institute for NuclearResearch, Dubna. He has been invited to referee papers for Physical Review Letters and Nuclear Instruments and Methods. His present research interests include the precise measurement of the top quark mass with CDF and ATLAS and the search for the Standard Model Higgs particle with the ATLAS experiment.
Articles in Scholarly Journals [Incomplete List]
- The CDF II eXtremely Fast Tracker upgrade
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 572, no. 1, pp. 358–360, 2007 - Measurement of the B^{+} production cross section in pp [over ¯] collisions at sqrt[s] =1960 GeV
Physical Review D, vol. 75, no. 1, 2007 - Precision measurement of the top-quark mass from dilepton events at CDF II
Physical Review D, vol. 75, no. 3, 2007 - Search for exotic S=-2 baryons in pp[over ¯] collisions at sqrt[s]=1.96 TeV
Physical Review D, vol. 75, no. 3, 2007 - Measurement of the helicity fractions of W bosons from top quark decays using fully reconstructed tt [over ¯] events with CDF II
Physical Review D, vol. 75, no. 5, 2007 - Measurement of the top quark mass in pp[over ¯] collisions at sqrt[s]=1.96 TeV using the decay length technique
Physical Review D, vol. 75, no. 7, 2007 - Search for W^{′} boson decaying to electron-neutrino pairs in pp[over ¯] collisions at sqrt[s]=1.96 TeV
Physical Review D, vol. 75, no. 9, 2007 - Measurement of the Ratios of Branching Fractions B(B_{s}^{0}→D_{s}^{-}π^{+}π^{+}π^{-})/B(B^{0}→D^{-}π^{+}π^{+}π^{-}) and B(B_{s}^{0}→D_{s}^{-}π^{+})/B(B^{0}→D^{-}π^{+})
Physical Review Letters, vol. 98, no. 6, 2007 - Search for V+A Current in Top-Quark Decays in pp[over ¯] Collisions at sqrt[s]=1.96 TeV
Physical Review Letters, vol. 98, no. 7, 2007 - Observation of Exclusive Electron-Positron Production in Hadron-Hadron Collisions
Physical Review Letters, vol. 98, no. 11, 2007 - Measurement of the Λ_{b}^{0} Lifetime in Λ_{b}^{0}→J/ψΛ^{0} in pp[over ¯] Collisions at sqrt[s]=1.96 TeV
Physical Review Letters, vol. 98, no. 12, 2007 - Measurement of σ_{Λ_{b}^{0}}/σ_{B[over ¯]^{0}}×B(Λ_{b}^{0}→Λ_{c}^{+}π^{-})/B(B[over ¯]^{0}→D^{+}π^{-}) in pp[over ¯] Collisions at sqrt[s]=1.96 TeV
Physical Review Letters, vol. 98, no. 12, 2007 - Search for Anomalous Production of Multilepton Events in pp [over ¯] Collisions at sqrt[s] =1.96 TeV
Physical Review Letters, vol. 98, no. 13, 2007 - Analysis of the Quantum Numbers J^{PC} of the X(3872) Particle
Physical Review Letters, vol. 98, no. 13, 2007 - Measurement of the Top-Quark Mass in All-Hadronic Decays in pp [over ¯] Collisions at CDF II
Physical Review Letters, vol. 98, no. 14, 2007 - Observation of WZ Production
Physical Review Letters, vol. 98, no. 16, 2007 - The ATLAS Hadronic Tile Calorimeter: From Construction Toward Physics
IEEE Transactions on Nuclear Science, vol. 53, no. 3, pp. 1275–1281, 2006 - New-generation large-area muon scintillation counters with wavelength shifter fiber readout for CDF II
Physics of Particles and Nuclei Letters, vol. 3, no. 3, pp. 188–200, 2006 - Organization of the first week of the 8th Hellenic Summer Study by the European Research and Training Network, Probe for New Physics: main objectives and outcomes
Journal of Physics: Conference Series, vol. 53, pp. 1–6, 2006 - Search for anomalous semileptonic decay of heavy flavor hadrons produced in association with a W boson at CDF II
Physical Review D, vol. 73, no. 5, 2006 - Search for second-generation scalar leptoquarks in pp[over ¯] collisions at sqrt[s]=1.96 TeV
Physical Review D, vol. 73, no. 5, 2006 - Measurement of the top quark mass with the dynamical likelihood method using lepton plus jets events with b-tags in pp[over ¯] collisions at sqrt[s]=1.96ââTeV
Physical Review D, vol. 73, no. 9, 2006 - Measurement of the top quark mass using template methods on dilepton events in pp [over ¯] collisions at sqrt[s] =1.96 TeV
Physical Review D, vol. 73, no. 11, 2006 - Measurement of the ratio of branching fractions B(D^{0}âK^{+}Ï^{-})/B(D^{0}âK^{-}Ï^{+}) using the CDF II detector
Physical Review D, vol. 74, no. 3, 2006 - Measurement of the b jet cross section in events with a Z boson in pp[over ¯] collisions at sqrt[s]=1.96ââTeV
Physical Review D, vol. 74, no. 3, 2006 - Top quark mass measurement from dilepton events at CDF II with the matrix-element method
Physical Review D, vol. 74, no. 3, 2006 - Measurement of the tt [over ¯] production cross section in pp [over ¯] collisions at sqrt[s] =1.96 TeV in the all hadronic decay mode
Physical Review D, vol. 74, no. 7, 2006 - Measurement of the tt [over ¯] production cross section in pp [over ¯] collisions at sqrt[s] =1.96 TeV using lepton+jets events with jet probability b-tagging
Physical Review D, vol. 74, no. 7, 2006 - A PMT-Block test bench
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 564, no. 1, pp. 597–607, 2006 - Comparison of CsI(Tl) and CsI(Na) partially slotted crystals for high-resolution SPECT imaging
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 569, no. 2, pp. 185–187, 2006 - Imaging properties of cerium doped Yttrium Aluminum Oxide (YAP:Ce) powder scintillating screens under X-ray excitation
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 569, no. 2, pp. 210–214, 2006 - Design and construction of new central and forward muon counters for CDF II
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 538, no. 1-3, pp. 358–371, 2005 - Partially slotted crystals for a high-resolution -camera based on a position sensitive photomultiplier
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 550, no. 1-2, pp. 305–312, 2005 - Properties of the Ukraine polystyrene-based plastic scintillator UPS 923A
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 555, no. 1-2, pp. 125–131, 2005 - Design of a cylindrical Cerenkov detector
Journal of Physics D: Applied Physics, vol. 37, no. 16, pp. 2283–2290, 2004 - Validation of the GATE Monte Carlo simulation platform for modelling a CsI(Tl) scintillation camera dedicated to small-animal imaging
Physics in Medicine and Biology, vol. 49, no. 2, pp. 271–285, 2004 - Identification of neutrino interactions using the DONUT spectrometer
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 516, no. 1, pp. 21–33, 2004 - The use of the Micromegas technology for a new imaging system
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 527, no. 1-2, pp. 62–67, 2004 - High-resolution and high-sensitivity SPECT imaging of breast phantoms
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 527, no. 1-2, pp. 97–101, 2004 - Crystal and collimator optimization studies of a high-resolution ?-camera based on a position sensitive photomultiplier
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 527, no. 1-2, pp. 134–139, 2004 - A modification of the dual energy window subtraction method for scatter compensation in pixelized scintillators for SPECT
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 527, no. 1-2, pp. 145–150, 2004 - Tomographic image reconstruction using Artificial Neural Networks
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 527, no. 1-2, pp. 211–215, 2004 - Design and development of a position-sensitive γ-camera for SPECT imaging based on PCI electronics
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 527, no. 1-2, pp. 151–156, 2004 - Imaging of breast phantoms using a high-resolution position sensitive photomultiplier tube
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 497, no. 1, pp. 141–149, 2003 - Improving spatial resolution in SPECT with the combination of PSPMT based detector and iterative reconstruction algorithms
Computerized Medical Imaging and Graphics, vol. 27, no. 4, pp. 307–313, 2003 - A 3D high-resolution gamma camera for radiopharmaceutical studies with small animals
Applied Radiation and Isotopes, vol. 58, no. 4, pp. 501–508, 2003 - A measurement of the photonuclear interactions of 180 GeV muons in iron
The European Physical Journal C - Particles and Fields, vol. 28, no. 3, pp. 297–304, 2003 - The MINOS scintillator calorimeter system
IEEE Transactions on Nuclear Science, vol. 49, no. 3, pp. 861–863, 2002 - The IASA RaceTrack Microtron Facility
Nuclear Physics A, vol. 663-664, no. 1-2, pp. 1095c–1098c, 2000 - Beam test of a parallel-plate calorimeter with high pressure gas as active medium
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 324, no. 1-2, pp. 77–82, 1993 - A novel electromagnetic shower maximum position detector
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 324, no. 3, pp. 475–481, 1993 - A comparison of argon and xenon gas mixtures at high pressure for calorimetry
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 333, no. 2-3, pp. 364–371, 1993 - A high-pressure gas-ionization tube calorimeter for forward detectors
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 333, no. 2-3, pp. 372–380, 1993 - Study of dose-rate effects on the radiation damage of polymer-based SCSN23, SCSN81, SCSN81+Y7, SCSN81+Y8 and 3HF scintillators
Radiation Physics and Chemistry, vol. 41, no. 1-2, pp. 315–320, 1993 - Measurement of jet shapes in p¯p collisions at vs =1.8 TeV
Physical Review Letters, vol. 70, no. 6, pp. 713–717, 1993 - Measurement of the W-boson P_{T} distribution in p¯p collisions at â??s =1.8 TeV
Physical Review Letters, vol. 66, no. 23, pp. 2951–2955, 1991 - Determinaiton of sin^{2}θ¯_{W} from the forward-backward asymmetry in pp¯â??Z^{0}Xâ??e^{+}e^{-}X interactions at â??s =1.8 TeV
Physical Review Letters, vol. 67, no. 12, pp. 1502–1506, 1991 - Measurement of the e^{+}e^{-} Invariant-Mass Distribution in p¯p Collisions at s=1.8 TeV
Physical Review Letters, vol. 67, no. 18, pp. 2418–2422, 1991 - Measurement of the Z-boson p_{T} distribution in p¯p collisions at vs =1.8 TeV
Physical Review Letters, vol. 67, no. 21, pp. 2937–2941, 1991 - Measurement of B0B¯0 mixing at the Fermilab Tevatron Collider
Physical Review Letters, vol. 67, no. 24, pp. 3351–3355, 1991 - Hadron and electron response in a uranium liquid argon calorimeter from 10 to 150 GeV
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 269, no. 3, pp. 492–506, 1988 - A multicell threshold Cherenkov counter
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 248, no. 2-3, pp. 358–366, 1986 - Signal from the natural radioactivity of depleted uranium in liquid argon
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 248, no. 2-3, pp. 389–392, 1986