23-27 January 2017
Bormio, Italy
Europe/Berlin timezone

Calculations of kaonic nuclei based on chiral meson-baryon coupled channel interaction models

26 Jan 2017, 17:25
20m
Bormio, Italy

Bormio, Italy

Short Contribution Thursday Afternoon

Speaker

Mrs Jaroslava Hrtankova (Nuclear Physics Institute, 25068 Rez, Czech Republic)

Description

We review our latest calculations of $K^-$-nuclear quasi-bound states. We apply a self-consistent scheme for constructing $K^-$-nuclear potentials from subthreshold chirally inspired $K^-$$N$ scattering amplitudes, which are derived within several chirally motivated meson-baryon coupled-channel interaction models: Prague [1], Kyoto- Munich [2], Murcia [3], and Bonn [4]. They capture the physics of the Λ(1405) and reproduce low energy $K^-N$ observables, including the 1s level shift and width in the $K^-$ hydrogen atom from the SIDDHARTA experiment [5]. We consider the in-medium versions of the scattering amplitudes taking into account Pauli blocking in the intermediate states. We calculate $K^-$ binding energies and widths in various nuclei and study the effects of 2N absorption, core polarization and the P-wave interaction on the considered observables. The chirally inspired $K^-N$ potentials supplemented with phenomenological terms representing $K^-$ multinucleon processes were recently confronted [6] with kaonic atom and $K^-$ absorption data to provide another test of considered interaction models. [1] A. Cieply, J. Smejkal, Nucl. Phys. A 881 (2012) 115 [2] Y. Ikeda, T. Hyodo and W. Weise, Nucl. Phys. A 881 (2012) 98 [3] Z. H. Guo and J. A. Oller, Phys. Rev. C 87, no. 3,(2013) 035202 [4] M. Mai and U.-G. Meißner, Nucl. Phys. A 900, (2013) 51 [5] M. Bazzi et al (SIDDHARTA Collaboration), Phys. Lett. B 704 (2011) 113 [6] E. Friedman, A. Gal, to be published, arXiv:1610.04004 [nucl-th]

Primary author

Mrs Jaroslava Hrtankova (Nuclear Physics Institute, 25068 Rez, Czech Republic)

Co-author

Dr Jiri Mares (Nuclear Physics Institute)

Presentation Materials