The Role of Local and Global Strangeness Neutrality at the Inhomogeneous Freeze-Out in Relativistic Heavy ion Collisions



Título del documento: The Role of Local and Global Strangeness Neutrality at the Inhomogeneous Freeze-Out in Relativistic Heavy ion Collisions
Revue: Brazilian journal of physics
Base de datos: PERIÓDICA
Número de sistema: 000403247
ISSN: 0103-9733
Autores: 1
1
Instituciones: 1Universidade Federal do Rio de Janeiro, Instituto de Fisica, Rio de Janeiro. Brasil
Año:
Periodo: Sep
Volumen: 37
Número: 3A
Paginación: 1014-1020
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico
Resumen en inglés The decoupling surface in relativistic heavy-ion collisions may not be homogeneous. Rather, inhomogeneities should form when a rapid transition from high to low entropy density occurs. We analyze the hadron “chemistry” from high-energy heavy-ion reactions for the presence of such density inhomogeneities. We show that due to the non-linear dependence of the particle densities on the temperature and baryon-chemical potential such inhomogeneities should be visible even in the integrated, inclusive abundances. We analyze experimental data from Pb+Pb collisions at CERN-SPS and Au+Au collisions at BNL-RHIC to determine the amplitude of inhomogeneities and the role of local and global strangeness neutrality
Disciplinas: Física y astronomía
Palabras clave: Física nuclear,
Iones pesados,
Colisiones,
Relatividad general
Keyword: Physics and astronomy,
Nuclear physics,
Heavy ions,
Collisions,
General relativity
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