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Transverse energy production and charged-particle multiplicity at midrapidity in various systems from sqrt(s_NN)=7.7 to 200 GeV (CROSBI ID 226189)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Adare, A. ; ... ; Makek, Mihael ; ... ; Zou, L. Transverse energy production and charged-particle multiplicity at midrapidity in various systems from sqrt(s_NN)=7.7 to 200 GeV // Physical review. C, 93 (2016), 2; 024901-024901. doi: 10.1103/PhysRevC.93.024901

Podaci o odgovornosti

Adare, A. ; ... ; Makek, Mihael ; ... ; Zou, L.

engleski

Transverse energy production and charged-particle multiplicity at midrapidity in various systems from sqrt(s_NN)=7.7 to 200 GeV

Measurements of midrapidity charged-particle multiplicity distributions, dNch/dη, and midrapidity transverse-energy distributions, dET/dη, are presented for a variety of collision systems and energies. Included are distributions for Au+Au collisions at sqrt(s_NN)=200, 130, 62.4, 39, 27, 19.6, 14.5, and 7.7 GeV, Cu+Cu collisions at sNN=200 and 62.4 GeV, Cu+Au collisions at sNN=200 GeV, U+U collisions at sNN=193 GeV, d+Au collisions at sNN=200 GeV, He3+Au collisions at sNN=200 GeV, and p+p collisions at sNN=200 GeV. Centrality-dependent distributions at midrapidity are presented in terms of the number of nucleon participants, Npart, and the number of constituent quark participants, Nqp. For all A+A collisions down to sNN=7.7 GeV, it is observed that the midrapidity data are better described by scaling with Nqp than scaling with Npart. Also presented are estimates of the Bjorken energy density, ɛBJ, and the ratio of dET/dη to dNch/dη, the latter of which is seen to be constant as a function of centrality for all systems.

beam energy scan ; transverse energy ; PHENIX

PHENIX Collaboration.

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Podaci o izdanju

93 (2)

2016.

024901-024901

objavljeno

2469-9985

2469-9993

10.1103/PhysRevC.93.024901

Povezanost rada

Fizika

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