G. Unal

ORCID: 0000-0001-8130-7423
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About
Contact & Profiles
Research Areas
  • Particle physics theoretical and experimental studies
  • High-Energy Particle Collisions Research
  • Particle Detector Development and Performance
  • Quantum Chromodynamics and Particle Interactions
  • Dark Matter and Cosmic Phenomena
  • Computational Physics and Python Applications
  • Cosmology and Gravitation Theories
  • Neutrino Physics Research
  • Distributed and Parallel Computing Systems
  • Radiation Detection and Scintillator Technologies
  • Black Holes and Theoretical Physics
  • Astrophysics and Cosmic Phenomena
  • Medical Imaging Techniques and Applications
  • Particle Accelerators and Free-Electron Lasers
  • Advanced Data Storage Technologies
  • Muon and positron interactions and applications
  • Atomic and Subatomic Physics Research
  • advanced mathematical theories
  • Superconducting Materials and Applications
  • Particle accelerators and beam dynamics
  • Big Data Technologies and Applications
  • Scientific Computing and Data Management
  • Radiation Therapy and Dosimetry
  • Digital Radiography and Breast Imaging
  • Scientific Research and Discoveries

European Organization for Nuclear Research
2016-2025

ETH Zurich
2025

The University of Texas at Austin
2020-2024

Istanbul University
2023-2024

Northern Illinois University
2023-2024

Institute for High Energy Physics
2023-2024

Institute of Science and Technology
2023-2024

Atlas Scientific (United States)
2024

Institute of High Energy Physics
2024

A. Alikhanyan National Laboratory
2024

The direct CP violation parameter Re(epsilon'/epsilon) has been measured from the decay rates of neutral kaons into two pions using NA48 detector at CERN SPS. 2001 running period was devoted to collecting additional data under varied conditions compared earlier years (1997-99). new yield result: = (13.7 +/- 3.1) times 10^{-4}. Combining this result with that published 1997, 98 and 99 data, an overall value (14.7 2.2) 10^{-4} is obtained experiment.

10.1016/s0370-2693(02)02476-0 article EN cc-by Physics Letters B 2002-09-01

10.1016/j.nima.2007.08.157 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2007-08-23

10.1016/j.nima.2005.05.041 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2005-07-02

We present a measurement of the ratio decay rates Gamma(KL -> pi+ pi-)/Gamma(KL pi e nu), denoted as Gamma(K2pi)/Gamma(Ke3). The analysis is based on data taken during dedicated run in 1999 by NA48 experiment at CERN SPS. Using sample 47000 K2pi and five million Ke3 decays, we find Gamma(K2pi)/Gamma(Ke3) = (4.835 +- 0.022(stat) 0.016(syst)) x 10^-3. From this derive branching CP violating KL pi- violation parameter |eta+-|. Excluding conserving direct photon emission component gamma, obtain...

10.1016/j.physletb.2006.11.071 article EN cc-by Physics Letters B 2006-12-20

The construction and the assembly of two end-caps ATLAS liquid argon electromagnetic calorimeter as well their test qualification programs are described. work described here started at beginning 2001 lasted for approximately three years. results tests performed before installation in LHC pit given. detectors now installed cavern, full being commissioned. complete coverage is powered with high voltage readout.

10.1088/1748-0221/3/06/p06002 article EN Journal of Instrumentation 2008-06-10

10.1016/j.nima.2009.05.021 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2009-05-19

The KS->gamma gamma decay rate has been measured with the NA48 detector using a high intensity short neutral beam from CERN SPS. branching ratio BR(KS->gamma gamma)=(2.78+-0.06(stat)+-0.04(syst))x10-6, obtained 7461+-172 events, is significantly higher than O(p^4) prediction of Chiral Perturbation Theory. Using KL BR(KL->gamma gamma)/BR(KL->3pi0)=(2.81+-0.01(stat)+-0.02(syst))x10-3 measured.

10.1016/s0370-2693(02)02955-6 article EN cc-by Physics Letters B 2002-12-27
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