Formation of double-¦« hypernuclei at PANDA

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• 作者：T. Gaitanos ; ^{Theodoros.Gaitanos@theo.physik.uni-giessen.de} ; A.B. Larionov¹ ; H. Lenske ; U. Mosel
• 关键词：BUU transport equation ; Giessen-BUU ; Statistical multifragmentation model ; Antiptoron-induced reactions ; Hypernuclei ; PANDA experiment
• 刊名：Nuclear Physics A
• 出版年：2012
• 出版时间：1 May, 2012
• 年：2012
• 卷：881
• 期：Complete
• 页码：240-254
• 全文大小：342 K

文摘

We study the formation of single- and double-¦« hypernuclei in antiproton-induced reactions relevant for the forthcoming PANDA experiment at FAIR. We use the Giessen Boltzmann-Uehling-Uhlenbeck (GiBUU) transport model with relativistic mean-fields for the description of non-equilibrium dynamics and the statistical multifragmentation model (SMM) for fragment formation. This combined approach describes the dynamical properties of strangeness and fragments in low energy -induced reactions fairly well. We then focus on the formation of double-¦« hypernuclei in high energy -nucleus collisions on a primary target including the complementary ¦®-induced reactions to a secondary one, as proposed by the PANDA Collaboration. Our results show that a copious production of double-¦« hyperfragments is possible at PANDA. In particular, we provide first theoretical estimations on the double-¦« production cross section, which strongly rises with decreasing energy of the secondary ¦®-beam.