HADRONS AND BARYONIC SYSTEMS
 

Department of Theoretical Physics




Research Overview:
  • Production of strangeness

    strangeness production


    • M. Coman,... P. Bydzovsky,... M. Sotona: Cross sections and Rosenbluth separations
      in H(e,e'K+)Lambda up to Q^2=2.35 GeV^2,
      Phys. Rev. C 81, 052201 (2010).
    • K. Tsukada,... P. Bydzovsky,... M. Sotona: Photoproduction of neutral kaons on a liquid deuterium target, Phys. Rev. C 78, 014001 (2008).
    • P. Bydzovsky, T. Mart: Analysis of the consistency of kaon photoproduction data with Lambda in the final state, Phys. Rev. C 76, 065202 (2007).
    • T. Watanabe,... P. Bydzovsky, M. Sotona,...: Photo-production of neutral kaons on 12C in the threshold region, Phys. Lett B 651, 269 (2007).


  • Production and structure of Lambda hypernuclei

    production of hypernuclei


    • A. Cieply, E. Friedman, A. Gal, V. Krejcirik: Constraints on the threshold K- nuclear potential from FINUDA (stopped K-, pi-) hypernuclear spectra, Phys. Lett. B 698, 226 (2011).
    • V. Krejcirik, A. Cieply, A. Gal: Lambda-hypernuclear production in stopped (K-,pion) reactions reexamined, Phys. Rev. C 82, 024609 (2010).
    • F. Cussano, ... P. Bydzovsky,... M.Sotona: High resolution spectroscopy of 16NLambda by eletroproduction, Phys. Rev. Lett. 103, 202501 (2009).
    • J.J. LeRose,... P. Bydzovsky, M.Sotona: Hypernuclear spectroscopy via (e,e'K+) in JLab's Hall A, Nucl. Phys. A 804, 116 (2008).
    • M. Iodice, ... P. Bydzovsky,... M.Sotona: High resolution spectroscopy of 12BLambda by electroproduction, Phys. Rev. Lett. 99, 052501 (2007).


  • K--nucleon interaction

    KN amplitudes


    • A. Cieply, J. Smejkal: Separable potential model for K-N interactions at low energies,
      Eur. Phys. J. A43, 191 (2010).
    • J. Revai, N.V. Shevchenko: Isospin mixing effects in low-energy anti-K N - pi Sigma interaction, Phys. Rev. C 79, 035202 (2009).
    • A. Cieply, J. Smejkal: Kaonic hydrogen versus the K- p low energy data,
      Eur. Phys. J. A34, 237 (2007).


  • Pion-pion scattering

    pipi scattering amplitude


    • Yu.S. Surovtsev, P. Bydzovsky, V.E. Lyubovitskij : Nature of the scalar-isoscalar mesons in the uniformizing-variable method based on analycity and unitarity,
      Phys. Rev. D 85, 036002 (2012).
    • Yu.S. Surovtsev, P. Bydzovsky, R. Kaminski, M. Nagy: Light-meson spectroscopy and combined analysis of processes with pseudoscalar mesons,
      Phys. Rev. D 81, 016001 (2010).
    • Yu.S. Surovtsev, P. Bydzovsky: Analysis of the pion-pion scattering data and rho-like mesons,
      Nucl. Phys. A 807, 145 (2008).


  • Production of pseudoscalar mesons

    eta+pi production


    • Yu.S. Surovtsev, T.D. Blochintseva, P. Bydzovsky, M. Nagy: Electroproduction, photoproduction and inverse electroproduction of pions in the first resonance region, Phys. Rev. C 71, 055205 (2005).


  • Kaonic nuclei

    kaonic hypernuclei


    • D. Gazda, E. Friedman, A. Gal, J. Mares: Multi-Kbar hypernuclei,
      Phys. Rev. C 80 (2009) 035205.
    • D. Gazda, E. Friedman, A. Gal, J. Mares: Dynamics of anti-K and multi-anti-K nuclei,
      Phys. Rev. C 76, 055204 (2007).
    • J. Mares, E.Friedman, A. Gal: Anti-K nuclear bound states in a dynamical model,
      Nucl. Phys. A 770, 84 (2006).
    • J. Mares, E.Friedman, A. Gal: Widths of anti-K - nuclear deeply bound states in a dynamical model, Phys. Lett. B 606, 295 (2005).


  • Few-body antikaon-nucleus systems

    few-body kaonic systems


    • N. Shevchenko:Near-threshold K^-d scattering and properties of kaonic deuterium,
      Nucl. Phys. A 890-891 (2012) 50.
    • N. Shevchenko:One- versus two-pole KbarN-piSIgma potential: K^-d scattering length, Phys. Rev. C 85, 034001 (2012).
    • N. Shevchenko, A. Gal, J. Mares, J. Revai: Anti-K NN quasi-bound state and the anti-K N interaction: Coupled-channel Faddeev calculations of the anti-K NN - pi Sigma N system, Phys. Rev. C 76, 044004 (2007).
    • N. Shevchenko, A. Gal, J. Mares: Faddeev calculation of a K^-pp quasi-bound state,
      Phys. Rev. Lett. 98, 082301 (2007).


  • Strong interaction effects in pi-, K- and Sigma exotic atoms

    sigma atoms


    • A. Cieply, E. Friedman, A. Gal, J. Mares: Study of chirally motivated low-energy K- optical potentials, Nucl. Phys. A 696, 173 (2001).
    • E. Friedman, A. Gal, J. Mares, A. Cieply: K- nucleus relativistic mean field potential consistent with kaonic atoms, Phys. Rev. C 60, 024314 (1999).
    • J. Mares, E. Friedman, A. Gal: Constraints on Sigma nucleus dynamics from Dirac phenomeology, Nucl. Phys. A 594, 311 (1995).


  • RMF description of hypernuclei

    ls splitting


    • J. Mares, B.K. Jennings: Relativistic description of Lambda, Sigma and Xi hypernuclei,
      Phys. Rev. C 49, 2472 (1994).
    • J. Mares, J. Zofka: On Lambda hyperon(s) in the nuclear medium,
      Z. Phys. A 333, 209 (1989).