Charged-particle multiplicity at mid-rapidity in Au–Au collisions at relativistic heavy-ion collider

Pramana

D Silvermyr¹ 

[1] Department of Physics, Lund University, Box 118, 22100 Lund, Sweden$$

关键词: PHENIX;    relativistic heavy-ion collisions;    ultra-relativistic heavy-ion collisions;    multiplicity.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

The particle density at mid-rapidity is an essential global variable for the characterization of nuclear collisions at ultra-relativistic energies. It provides information about the initial conditions and energy density reached in these collisions. The pseudorapidity densities of charged particles at mid-rapidity in Au + Au collisions at $sqrt{S_{NN}}=130$ and 200 GeV at RHIC (relativistic heavy ion collider) have been measured with the PHENIX detector. The measurements were performed using sets of wire-chambers with pad readout in the two central PHENIX tracking arms. Each arm covers one quarter of the azimuth in the pseudorapidity interval |𝜂| < 0.35. Data is presented and compared with results from proton–proton collisions and nucleus–nucleus collisions at lower energies. Extrapolations to LHC energies are discussed.

【 授权许可】

Unknown