تقرير
Core meets corona: a two-component source to explain Lambda and anti-Lambda global polarization in semi-central heavy-ion collisions
| العنوان: | Core meets corona: a two-component source to explain Lambda and anti-Lambda global polarization in semi-central heavy-ion collisions |
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| المؤلفون: | Ayala, Alejandro, Torres, Marco Alberto Ayala, Cuautle, Eleazar, Dominguez, Isabel, Sanchez, Marcos Aurelio Fontaine, Maldonado, Ivonne, Moreno-Barbosa, E., Nieto-Marin, P. A., Rodriguez-Cahuantzi, M., Salinas, Jordi, Tejeda-Yeomans, Maria Elena, Valenzuela-Cazares, L. |
| سنة النشر: | 2020 |
| المجموعة: | High Energy Physics - Phenomenology Nuclear Experiment Nuclear Theory |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology, Nuclear Experiment, Nuclear Theory |
| الوصف: | We compute the Lambda and anti-Lambda 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 Lambdas than anti-Lambdas are produced in the corona, and this is combined with a smaller number of Lambdas coming from the core, as compared to those coming from the corona, an amplification effect for the anti-Lambda with respect to that of Lambda polarization can occur. This amplification becomes more important for lower collision energies and quantitatively accounts for the Lambda and anti-Lambda polarizations measured by the STAR beam energy scan. Comment: 6 pages, 5 figures. Version to appear in Phys. Lett. B |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.physletb.2020.135818 |
| URL الوصول: | http://arxiv.org/abs/2003.13757 |
| رقم الأكسشن: | edsarx.2003.13757 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.physletb.2020.135818 |
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