Regular Article - Theoretical Physics
Production of and in ultra-relativistic heavy-ion collisions
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 201800, Shanghai, China
2 Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Institute of Modern Physics, Fudan University, 200433, Shanghai, China
3 School of Nuclear Sciences and Technology, University of Chinese Academy of Sciences, 100049, Beijing, China
4 Shanghai Research Center for Theoretical Nuclear Physics, NSFC and Fudan University, 200438, Shanghai, China
Accepted: 19 April 2022
Published online: 8 May 2022
Even though lots of -hypernuclei have been found and measured, multi-strangeness hypernuclei consisting of are not yet discovered. The studies of multi-strangeness hypernuclei help us further understand the interaction between hyperons and nucleons. Recently the and interactions as well as binding energies were calculated by the HAL-QCD’s lattice Quantum Chromo-Dynamics (LQCD) simulations and production rates of -dibaryon in Au + Au collisions at RHIC and Pb + Pb collisions at LHC energies were estimated by a coalescence model. The present work discusses the production of more exotic triple-baryons including , namely and as well as their decay channels. A variation method is used in calculations of bound states and binding energy of and with the potentials from the HAL-QCD’s results. The productions of and are predicted by using a blast-wave model plus coalescence model in ultra-relativistic heavy-ion collisions at GeV and 2.76 TeV. Furthermore, plots for baryon number dependent yields of different baryons (N and ), their dibaryons and hypernuclei are made and the production rate of a more exotic tetra-baryon () is extrapolated.
© The Author(s) 2022
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