Deuteron and antideuteron production in Au+Au collisions at √sNN=200GeV

Adler, S. S. ; Kapoor, S. S. ; et., al (2005) Deuteron and antideuteron production in Au+Au collisions at √sNN=200GeV Physical Review Letters, 94 (12). 122302_1-122302_6. ISSN 0031-9007

PDF - Publisher Version

Official URL:

Related URL:


The production of deuterons and antideuterons in the transverse momentum range 1.1<pT<4.3 GeV/c at midrapidity in Au+Au collisions at √sNN=200 GeV has been studied by the PHENIX experiment at RHIC. A coalescence analysis, comparing the deuteron and antideuteron spectra with that of proton and antiproton, has been performed. The coalescence probability is equal for both deuterons and antideuterons and it increases as a function of pT, which is consistent with an expanding collision zone. Comparing (anti)proton yields, p- /p=0.73±0.01, with (anti)deuteron yields, d-/d=0.47±0.03, we estimate that n- /n=0.64±0.04. The nucleon phase space density is estimated from the coalescence measurement.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
Keywords:Relativistic; Heavy Ion; Collisions; Deuteron
ID Code:16645
Deposited On:15 Nov 2010 13:30
Last Modified:17 May 2016 01:23

Repository Staff Only: item control page