Tibor Keri

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Proton-antiproton annihilation is a unique tool to address fundamental questions of the strong interaction and to explore the structure of the nucleon. The PANDA collaboration proposes to build a state-of-the-art universal detector system to study reactions of anti-protons impinging on a proton or nuclear target internal to the high energy storage ring at(More)
Azimuthal single-spin asymmetries of leptoproduced pions and charged kaons were measured on a transversely polarized hydrogen target. Evidence for a naive-T-odd, transverse-momentum-dependent parton distribution function is deduced from nonvanishing Sivers effects for pi(+), pi(0), and K(+/-), as well as in the difference of the pi(+) and pi(-) cross(More)
A. Airapetian, N. Akopov, Z. Akopov, E. C. Aschenauer, W. Augustyniak, A. Avetissian, E. Avetisyan, S. Belostotski, H. P. Blok, A. Borissov, V. Bryzgalov, J. Burns, M. Capiluppi, G. P. Capitani, E. Cisbani, G. Ciullo, M. Contalbrigo, P. F. Dalpiaz, W. Deconinck, R. De Leo, E. De Sanctis, M. Diefenthaler, P. Di Nezza, M. Düren, M. Ehrenfried, G. Elbakian, F.(More)
The upcoming PANDA Experiment at FAIR in Germany will be equipped with a novel Cherenkov detector type for high-energy particle identification. This very compact Disc-DIRC detector uses a large disc-shaped fused silica plate of 2 cm thickness as its Cherenkov radiator. The internally reflected Cherenkov light is transported to the rim of the disc where it(More)
  • Tibor Keri
  • 2011 IEEE Nuclear Science Symposium Conference…
  • 2011
The P̄ANDA Disc DIRC is a novel detector concept for particle identification based on Detection of Internally-Reflected Cherenkov light (DIRC). A thin disc of ∼1 m radius will be used as radiator and for light transportation. At the rim, crystal bars are foreseen to perform passive chromatic correction. Focussing light guides map the angles of(More)
The HERMES collaboration at DESY will install a new recoil detector surrounding its target region for the envisaged final two years of the HERA II running period aiming at detecting recoiling nucleons from hard exclusive scattering [1, 2]. Protons and Pions with momenta p > 250 MeV/c will be detected and identified by a two–barrel scintillating fibre(More)
Muon tomography is a non-invasive imaging technique which can be used to visualize the internal structures of an object using the Coulomb scattering of cosmic-ray muons. Because of their high penetrative power of high energy muons, this technique can potentially be used to image large and dense objects. It has been demonstrated in our previous study that(More)
Bose–Einstein correlations of like-sign charged hadrons produced in deep-inelastic electron and positron scattering are studied in the HERMES experiment using nuclear targets of 1H, 2H, 3He, 4He, N, Ne, Kr, and Xe. A Gaussian approach is used to parametrize a two-particle correlation function determined from events with at least two charged hadrons of the(More)