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POSSIBLE DEVELOPMENT OF CUMULATIVE PARTICLE
EXPERIMENTS WITH NICA FACILITY
B.F. Kostenko 1† , J. Pribish 2 and V.P. Filinova 1
(1) Joint Institute for Nuclear Research
(2) Technical University, Košice, Slovakia
† E-mail: bkostenko@jinr.ru
After collisions with projectiles, density fluctuation of nuclear matter may turn into
multibaryon (MB) with chiral symmetry restored in its interior. This method of observation
of the chiral phase transition has its advantages due to a relatively moderate number
ofsecondary particles tobemeasured. Wesuggest to useacumulative particle asatrigger
for registration of MB decay products. Estimations show that its appearance is a signature
of ”deep cooling” of the MB, which brings it close to the unexcited state [1]. This
gives a chance to separate MB from the secondary particle background. For separation of
events with MB production, a role of intranuclear collisions of MB decay products should
also be evaluated. We study experimental data taken (with a view to observation of the
color transparency and the short range correlations) with the EVA spectrometer at BNL
[2, 3] as a simplified form of the problem. Analysis of intranuclear interactions before
and after hard scattering of protons on SRC leads to unexpected conclusion that wave
function of 12 C has an admixture of states reminding a fusiform body.
References
[1] B.F. Kostenko, J. Pribish, Phys. Atom. Nucl. 75, 888 (2012).
[2] J. Aclander et al., Phys. Lett. B453, 211 (1999).
[3] A. Tang et al., Phys. Rev. Lett. 90, 042301 (2003).
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