Strange tribaryons as Kbar-mediated dense nuclear systems

Details Strange tribaryons as Kbar-mediated dense nuclear systems Strange tribaryons as Kbar-mediated dense nuclear systems

2005-01-17

arxiv.org/abs/nucl-th/0501040v1

Phys.Lett. B613 (2005) 140-147

Physics

Nuclear Physics

Nuclear Theory

8 pages, 6 figures

Scientific paper

10.1016/j.physletb.2005.03.041

We discuss the implications of recently discovered strange tribaryons in 4He(stopped-K-, p)S0 (3115) and 4He(stopped-K, n) S1 (3140) within the framework of deeply bound kbar states formed on shrunk nuclear cores. S1 (3140) corresponds to T=0 ppnK-, whereas S0 (3115) to T=1 pnnK-, which is an isobaric analog state of pppK-, predicted previously. The observed binding energies can be accounted for by including the relativistic effect and by invoking a medium-enhanced kbar-N interaction by 15%. We propose various experimental methods to further study these and related bound systems.

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