The hypernucleus formation probability in nuclear collisions is formulated with a coalescence model and is calculated for p +Ne and Ne+Ne collisions at 2.1 GeV/nucleon and 5 GeV/nucleon. It is found that the probability of the hypernucleus formation at 5 GeV/nucleon is about a few times larger than at 2.1 GeV/nucleon and also that the probability of the hypernucleus formation in the Ne+Ne collisions is a few times larger than that in the p +Ne collisions. The cross section of A-hypernucleus formation is of the order of pb in the Ne+Ne collisions at 5 GeV/nucleon. The formation probability of multi-A hypernucleus is also discussed.
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