PoS - Proceedings of Science
Volume 282 - 38th International Conference on High Energy Physics (ICHEP2016) - Poster Session
Excessive double strange baryon production due to strangeness oscillation in p+A, A+A collisions
P. Filip
Full text: pdf
Pre-published on: February 22, 2017
Published on: April 19, 2017
Production of double strange Xi- hyperons at sub-threshold energies has been observed by HADES experiment [1] to be unexpectedly enhanced in comparison to theoretical estimates. We suggest, that K0* <--> anti-K0* oscillation of neutral kaons can be affected in very dense baryonic matter in a specific way, which may result in the oscillation length 5-10 fm. This allows for the strangeness violation process (s'd) --> (sd') to occur in a very short time, within the volume of dense hadronic medium, and excessive double-strange hyperons can be created via rescattering anti-K0* + (Sigma , Lambda) --> Xi + pi interactions. The significance of such processes is underestimated, if global strangeness conservation is assumed in p + A and A + A collisions at low energies.
DOI: https://doi.org/10.22323/1.282.0962
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