Department of Theoretical Physics

Research Overview:
  • Production of strangeness

    strangeness production   strangeness production

    • D. Skoupil, P. Bydzovsky: Photo- and electroproduction of K+ Lambda with unitarity-restored isobar model, Phys. Rev. C 97 (2018) 025202.
    • D. Skoupil, P. Bydzovsky: Photoproduction of K-Lambda on the proton,
      Phys. Rev. C 93, 025204 (2016).
    • A1 Coll., P. Achenbach,... P. Bydzovsky, ...: Exclusive electroproduction of K+ Lambda
      and K+ Sigma0 final states at Q2 = 0.030--0.055 (GeV/c)2,
      Eur. Phys. J. A 48 (2012) 14.
    • A1 Coll., P. Achenbach,... P. Byd\v{z}ovsk\'y,... D. Skoupil,..: Beam helicity asymmetries
      in K+ Lambda electroproduction off the proton at low Q2,
      Eur. Phys. J. A 53 (2017) 198.
    • Beckford, P. Bydzovsky, ...: Near threshold angular distributions for the
      2H(gamma,Lambda)X reaction,
      Progr. Theor. Exp. Phys. 2016 (2016) 063D01.

  • Gauge-invariant chiral unitary framework for meson photoproduction

    production of mesons

    • B. Borasoy, P. C. Bruns, U.-G. Meißner and R. Nißler: A Gauge invariant chiral
      unitary framework for kaon photo- and electroproduction on the proton,

      Eur. Phys. J. A 34 (2007) 161.
    • M. Mai, P. C. Bruns, U.-G. Meißner: Chiral dynamics of the S11(1535) and S11(1650) resonances revisited, Phys. Lett. B 697 (2011) 254.
    • M. Mai, P. C. Bruns, U.-G. Meißner: Pion photoproduction off the proton
      in a gauge-invariant chiral unitary framework,
      Phys. Rev. D 86 (2012) 094033.

  • 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).
    • G.M. Urciuoli,... P. Bydzovsky, ... (Jefferson Lab Hall A Coll.): Spectroscopy of 9LiLambda
      by electroproduction,
      Phys, Rev, C 91 (2015) 034308.
    • P. Bydzovsky, M. Sotona, T. Motoba, K. Itonaga, K. Ogawa, O. Hashimoto: Electromagnetic production of medium mass Lambda-hypernuclei, Nucl. Phys. A 881 (2012) 199.
    • 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).

  • Structure of light hypernuclei within NCSM & FMD

    structure of hypernuclei   structure of hypernuclei

    • D. Gazda, A. Gal: Ab initio calculations of charge symmetry breaking in the A=4 hypernuclei, Phys. Rev. Lett. 116 (2016) 122501.
    • R. Wirth, D. Gazda, P. Navratil, A. Calci, J. Langhammer, R. Roth: Ab initio descrition of p-shell hypernuclei, Phys. Rev. Lett. 113, 192502 (2014).
    • M. Schäfer, H. Feldmeier, J. Mares, T. Neff: Structure of light hypernuclei
      in the framework of Fermionic Moleclular Dynamics,
      PoS Bormio2015 (2015) 036.

  • Traces of a hidden-charm S = -1 pentaquark

    albert's results

    • A. Feijoo, V. K. Magas, A. Ramos and E. Oset: Eur. Phys. J. C 76 (2016) 446.

  • K--nucleon and eta-nucleon interactions

    kaonic hydrogen   pisigma spectrum

    • A. Cieply, M. Mai, Meißner, J. Smejkal: On the pole content of coupled channels
      chiral approaches used for the KbarN system,
      Nucl. Phys. A 954 (2016) 17.
    • A. Cieply, J. Smejkal: Chirally motivated separable potential model for eta-N amplitudes,
      Nucl. Phys. A 919 (2013) 46.
    • A. Cieply, J. Smejkal: Chirally motivated KbarN amplitudes for in-medium applications,
      Nucl. Phys. A 881 (2012) 115.
    • J. Revai, N.V. Shevchenko: Isospin mixing effects in low-energy Kbar N - pi Sigma interaction, Phys. Rev. C 79, 035202 (2009).

  • Meson-meson interactions

    meson-meson interactions

    • P. Bydzovsky, R. Kaminski, V. Nazari: Dispersive analysis of the S-, P-, D-, and F-wave pi-pi amplitudes, Phys. Rev. D 94 (2016) 116013.
    • P. Bydzovsky, R. Kaminski, V. Nazari: Modified pi-pi amplitude with sigma pole, Phys. Rev. D 90 (2014) 116005.
    • Yu. S. Surovtsev, P. Bydzovsky, T. Gutsche, R. Kaminski, V. E. Lyubovitskij, and M. Nagy:
      Effect of the KKbar and eta-eta channels and interference phenomena in the two-pion
      and KKbar transitions of charmonia and bottomonia,
      Phys. Rev. D 97 (2018) 014009.
    • Yu. S. Surovtsev, P. Bydzovsky, R. Kaminski, V.E. Lyubovitskij, M. Nagy
      Parameters of scalar resonances from the combined analysis of data on processes pi+pi -> pi+pi, K+Kbar, eta+eta and J/Psi Decays, Phys. Rev. D 89 (2014) 036010.
    • 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).

  • Few-body antikaon-nucleus systems

    few-body kaonic systems

    • P. Doleschall, J. Revai, N. Shevchenko: Three-body calculation of the 1s level shift
      in kaonic deuterium,
      Phys. Lett. B 744 (2015] 105.
    • J. Revai, N. Shevchenko: Faddeev calculations of the KbarNN system
      with chirally-motivated KbarN interaction. II. The K-pp quasi-bound state,

      Phys. Rev. C 90 (2014) 034004.
    • N. Shevchenko, J. Revai: Faddeev calculations of the KbarNN system
      with chirally-motivated KbarN interaction. I. Low-energy K-d scattering and antikaonic deuterium,
      Phys. Rev. C 90 (2014) 034003.
    • N. Shevchenko, A. Gal, J. Mares, J. Revai: KbarNN quasi-bound state and the anti-K N interaction: Coupled-channel Faddeev calculations of the KbarNN - 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).

  • Eta nuclei

    eta nuclei

    • J. Mares, A. Cieply, M. Schäfer, N. Barnea, B. Bazak, E. Friedman, A. Gal:
      Eta-mesic nuclei, PoS Hadron2017 (2018) 203.
    • A. Cieply, E. Friedman, A. Gal, J. Mares: In-medium eta-N interactions
      and eta nuclear bound states,
      Nucl. Phys. A 925 (2014) 126.
    • E. Friedman, A. Gal, J. Mares: Eta nuclear bound states revisited,
      Phys. Lett. B 725 (2013) 334.

  • Kaonic nuclei

    antikaon potential   antikaon potential

    • J. Hrtankova, J. Mares: K- nuclear states: Binding energies and widths,
      Phys. Rev. C96 (2017) 015205.
    • J. Hrtankova, J. Mares: Are there any narrow K- nuclear states?,
      Phys. Lett. B770 (2017) 342.
    • D. Gazda, J. Mares: Calculations of Kbar nuclear quasi-bpound states based on chiral meson-baryon amplitudes, Nucl. Phys. A 881 (2012) 159.
    • A. Cieply, E. Friedman, A. Gal, D. Gazda, J. Mares: Chirally motivated K- nuclear potentials, Phys. Lett. B 702 (2011) 402.
    • J. Mares, E.Friedman, A. Gal: Widths of Kbar - nuclear deeply bound states
      in a dynamical model,
      Phys. Lett. B 606, 295 (2005).

  • Interactions of antiprotons with nuclei

    pbar nuclei   pbar nuclei

    • J. Hrtankova, J. Mares: Calculations of antiproton-nucleus quasi-bound states
      using the Paris NbarN potential,
      Nucl. Phys. A 969 (2018) 45.
    • J. Hrtankova, J. Mares: Interaction of antiprotons with nuclei, Nucl. Phys. A 945 (2016) 197.

  • Mean field and beyond mean field description of hypernuclei

    structure of hypernuclei   structure of hypernuclei

    • P. Vesely, E. Hiyama, J. Hrtankova, J. Mares: Sensitivity of Lambda single-particle
      energies to the LN spin-orbit coupling and to nuclear core structure in p-shell
      and sd-shell hypernuclei,
      Nucl. Phys. A 954 (2016) 260.
    • 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).

  • Ab initio nuclear structure calculations for dark matter direct detection

    dark matter   dark matter

    • D. Gazda, R. Catena, C. Forssen: Ab initio nuclear response functions for dark matter searches, Phys. Rev. D 95 (2017) 103011.

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

    sigma atoms

    • E.Friedman, A. Gal, J. Mares: Antiproton-nucleus potentials from global fits to antiprotonic X-rays and radichemical data, Nucl. Phys. A 761 (2005) 283.
    • 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).