LIGHT HYPERNUCLEI PRODUCTION IN Pb-Pb COLLISIONS AT √sNN=2.76 TeV WITH ALICE AT LHC

被引:1
|
作者
Lea, Ramona [1 ]
机构
[1] Univ Trieste, Dept Phys, I-34127 Trieste, Italy
来源
STRANGENESS IN QUARK MATTER 2011 | 2012年 / 5卷 / 02期
关键词
D O I
10.5506/APhysPolBSupp.5.599
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
Relativistic heavy-ion collisions offer a method to produce strangeness, hyperons, and also hyperon-baryon bound systems called hypernuclei. Thanks to its excellent performance for the reconstruction and identification of low p(t) particles and light ions, the ALICE detector is ideally suited for this kind of measurements. In this paper, preliminary results of hyper-triton production in Pb-Pb collisions at root s(NN) = 2.76 TeV will be reported using the data sample collected by the ALICE experiment during the first LHC heavy-ion run at the end of 2010. The H-3(Lambda) (3/Lambda (H) over bar) signal is extracted from the study of its mesonic decay H-3(Lambda) -> He-3 + pi(-) (3/Lambda(H) over bar -> (3)(He) over bar + pi(+)). Different background evaluation methods will be discussed.
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页码:599 / 604
页数:6
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