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Committee for collaboration of Czech Republic with Joint Institute for Nuclear Research in Dubna Login
The production of triton and reconstruction of H-3(Lambda) with the Heavy Flavor Tracker in Au plus Au collisions at STAR

Author
Adamczyk L. AGH University of Science and Technology, Poland
Lednický Richard, promovaný fyzik DrSc. dr. h. c. Institute of physics of the ASCR, JINR Dubna
et al.  different institutions

Year
2019

Scientific journal
NUCLEAR PHYSICS A 982 811-814

Web


Abstract
The transverse momentum spectra of triton with STAR Beam Energy Scan data from Au+Au collisions at root N-SS = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, 200 GeV in the centrality classes 0 - 10%, 10 - 20%, 20 - 40% and 40 - 80% are reported. The centrality dependence of the coalescence parameter B-3 of triton and the collision energy dependence of the relative neutron density fluctuation are then calculated. The results indicate that the B-3 decreases from peripheral to central collisions and the neutron density fluctuation shows a non-monotonic collision energy dependence with a peak around collision energy of 20-30 GeV. In addition, we report details about the reconstruction method of H-3(Lambda) via H-3(Lambda) -> 4 He-3 + pi(-) and H-3(Lambda) -> + p + pi(-) using high statistics data in Au+Au collisions at root S-NN = 200 GeV collected in 2014 and 2016 with the Heavy Flavor Tracker.

Cite article as:
L. Adamczyk, R. Lednický, . et al., "The production of triton and reconstruction of H-3(Lambda) with the Heavy Flavor Tracker in Au plus Au collisions at STAR ", NUCLEAR PHYSICS A 982 811-814 (2019)