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Λ and Σ + (1385) HYPERONS RECONSTRUCTION BY CBM-ROOT
P.Zh. Aslanyan 1† ,I. Vassilev 2 and M.Zizak 2
(1) JINR, LHEP, Dubna, Russia
(2) GSI, Darmstadt, Germany
† E-mail: paslanian@jinr.ru
The CBM experiment at FAIR will investigate the QCD phase diagram at high baryon
densities[1]. Energy densities above GeV/fm 3 appear at E lab > 5A GeV and exist during
the time interval less than 5 fm/c. Baryon densities above 10n 0 (n 0 - normal baryon
density) can be reached at E lab >10 GeV A in heavy A+A collisions[2].One of the signatures
of this new state is the enhanced production of strange particles, therefore hyperon
reconstruction is essential for the understanding of the heavy ion collision dynamics. The
experimental Λ/π + ratio in the pC reaction is approximately two times larger than this
ratio in pp reactions at the same energy [3]. Reconstruction of Σ ∗± (1385) hyperons for
p+p, p+nucleus, nucleus-nucleus collisions at SIS energies[4],[5] are a good experience for
anextstepstudyofexoticaandet. alasin[1],[3]reports. Thehighstatisticstudyofmulti
strange hyperons and exotica production FAIR, SIS energies will be one of important task
for CBM project in proton-nucleus and nucleus-nucleus collisions [1],[3].
References
[1] CBM Experiment, Technical Status Report, January (2005).
[2] I. Mishustin, L. Satarov and A. Merdeev, Proc. CPOD-11, August 23-29, JINR,
Dubna(2010).
[3] P.Zh.Aslanyan, Physics ofParticlesandNuclei(Springer), Vol.40, No.4, p.525(2009).
[4] P.Aslanyan and I.Vassiliev, Proc. EXA11, September 5th-9th, Vienna, Austria(2011).
[5] I. Vassiliev et al., Proc. CBM’12, Darmstadt, Germany, 19-23 March(2012).
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