Strangeness -2 two-baryon systems

Details Strangeness -2 two-baryon systems Strangeness -2 two-baryon systems

2010-09-09

arxiv.org/abs/1009.1704v1

Phys. Lett. B693, 305 (2010)

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 4 figures. Accepted for publication in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2010.08.066

We derive strangeness -2 baryon-baryon interactions from a chiral constituent quark model including the full set of scalar mesons. The model has been tuned in the strangeness 0 and -1 two-baryon systems, providing parameter free predictions for the strangeness -2 case. We calculate elastic and inelastic $N\Xi$ and $\Lambda\Lambda$ cross sections which are consistent with the existing experimental data. We also calculate the two-body scattering lengths for the different spin-isospin channels.

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