Autor: |
P. A. Nieto-Marín, Marco Alberto Ayala Torres, Isabel Dominguez, Eleazar Cuautle, Luis Valenzuela-Cázares, Jordi Salinas, M. Rodríguez-Cahuantzi, Ivonne Maldonado, E. Moreno-Barbosa, Marcos Aurelio Fontaine Sanchez, Alejandro Ayala, Maria Elena Tejeda-Yeomans |
Rok vydání: |
2020 |
Předmět: |
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Zdroj: |
Physics Letters B. 810:135818 |
ISSN: |
0370-2693 |
DOI: |
10.1016/j.physletb.2020.135818 |
Popis: |
We compute the Λ and Λ ‾ global polarization in semi-central heavy-ion collisions modeling the source as consisting of a high-density core and a less dense corona. We show that when more Λs than Λ ‾ s are produced in the corona, and this is combined with a smaller number of Λs coming from the core, as compared to those coming from the corona, an amplification effect for the Λ ‾ with respect to that of Λ polarization can occur. This amplification becomes more important for lower collision energies and quantitatively accounts for the Λ and Λ ‾ polarizations measured by the STAR beam energy scan. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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