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English
Výbor pro spolupráci ČR se Spojeným ústavem jaderných výzkumů Přihlášení
The production of triton and reconstruction of H-3(Lambda) with the Heavy Flavor Tracker in Au plus Au collisions at STAR

Autor
Adamczyk L. AGH University of Science and Technology, Poland
Lednický Richard, promovaný fyzik DrSc. dr. h. c. Fyzikální ústav AV ČR, SÚJV Dubna
et al.  různé instituce

Rok
2019

Časopis
NUCLEAR PHYSICS A 982 811-814

Web


Obsah
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.

Příklad citace článku:
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)