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System-size independence of directed flow at the BNL Relativistic Heavy-Ion Collider (CROSBI ID 151502)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Abelev, B.I. ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; et al. (the STAR Collaboration) System-size independence of directed flow at the BNL Relativistic Heavy-Ion Collider // Physical review letters, 101 (2008), 25; 252301-1-252301-6

Podaci o odgovornosti

Abelev, B.I. ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; et al. (the STAR Collaboration)

engleski

System-size independence of directed flow at the BNL Relativistic Heavy-Ion Collider

We measure directed flow ($v_1$) for charged particles in Au+Au and Cu+Cu collisions at $\sqrt{; ; s_{; ; NN}; ; }; ; =$ 200 GeV and 62.4 GeV, as a function of pseudorapidity ($\eta$), transverse momentum ($p_t$) and collision centrality, based on data from the STAR experiment. We find that the directed flow depends on the incident energy but, contrary to all existing models, not on the size of the colliding system at a given centrality. We extend the validity of the limiting fragmentation concept to different collision systems, and investigate possible explanations for the observed sign change in $v_1(p_t)$

Au+Au and Cu+Cu collisions

Art. no. 252301.

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o izdanju

101 (25)

2008.

252301-1-252301-6

objavljeno

0031-9007

Povezanost rada

Fizika

Indeksiranost