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Strangeness production in antiproton-nucleus collisions | | A.B. Larionov
; T. Gaitanos
; U. Mosel
; | | Date: |
3 Feb 2012 | | Abstract: | Antiproton annihilations on nuclei provide a very interesting way to study
the behaviour of strange particles in the nuclear medium. In low energy $ar
p$ annihilations, the hyperons are produced mostly by strangeness exchange
mechanisms. Thus, hyperon production in $ar p A$ interactions is very
sensitive to the properties of the antikaon-nucleon interaction in nuclear
medium. Within the Giessen Boltzmann-Uehling-Uhlenbeck transport model (GiBUU),
we analyse the experimental data on $Lambda$ and $K^0_S$ production in $ar p
A$ collisions at $p_{
m lab}=0.2-4$ GeV/c. A satisfactory overall agreement is
reached, except for the $K^0_S$ production in $ar p+^{20}$Ne collisions at
$p_{
m lab}=608$ MeV/c, where we obtain substantially larger $K^0_S$
production rate. We also study the $Xi$ hyperon production, important in view
of the forthcoming experiments at FAIR and J-PARC. | | Source: | arXiv, 1202.0748 | | Services: | Forum | Review | PDF | Favorites | |
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