Adams, J;
Aggarwal, MM;
Ahammed, Z;
Amonett, J;
Anderson, BD;
Arkhipkin, D;
Averichev, GS;
... Zubarev, AN; + view all
(2005)
Open charm yields in d+Au collisions at root s(NN)=200 GeV.
PHYS REV LETT
, 94
(6)
, Article 062301. 10.1103/PhysRevLett.94.062301.
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Abstract
Midrapidity open charm spectra from direct reconstruction of D-0((D) over bar (0))-->K(-/+)pi(+/-) in d(+)Au collisions and indirect electron-positron measurements via charm semileptonic decays in p+p and d+Au collisions at roots(NN)=200 GeV are reported. The D-0((D) over bar (0)) spectrum covers a transverse momentum (p(T)) range of 0.1< p(T) < 3 GeV/c, whereas the electron spectra cover a range of 1< p(T) < 4 GeV/c. The electron spectra show approximate binary collision scaling between p+p and d+Au collisions. From these two independent analyses, the differential cross section per nucleon-nucleon binary interaction at midrapidity for open charm production from d+Au collisions at BNL RHIC is dsigma(c)((c)) over bar (NN)/dy=0.30+/-0.04(stat)+/-0.09(syst) mb. The results are compared to theoretical calculations. Implications for charmonium results in A+A collisions are discussed.
Type: | Article |
---|---|
Title: | Open charm yields in d+Au collisions at root s(NN)=200 GeV |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1103/PhysRevLett.94.062301 |
Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.94.062301 |
Language: | English |
Additional information: | © 2005 The American Physical Society |
Keywords: | HEAVY-ION COLLISIONS, RESISTIVE PLATE CHAMBERS, DEPENDENCE, ELECTRONS, ENERGIES, PAIRS, PP |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1324860 |
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