Nuclear stopping in Au+Au collisions at root s(NN) = 200 GeV
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Issue Date
2004-09Author
Ito, H.
Kim, E. J.
Murray, Michael J.
Norris, J.
Sanders, Stephen J.
Publisher
AMERICAN PHYSICAL SOC
Type
Article
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Show full item recordAbstract
Transverse momentum spectra and rapidity densities, dN/dy, of protons, antiprotons, and net protons (p-(p) over bar) from central (0%-5%) Au+Au collisions at roots(NN)=200 GeV were measured with the BRAHMS experiment within the rapidity range 0less than or equal toyless than or equal to3. The proton and antiproton dN/dy decrease from midrapidity to y=3. The net-proton yield is roughly constant for y<1 at dN/dysimilar to7, and increases to dN/dysimilar to12 at ysimilar to3. The data show that collisions at this energy exhibit a high degree of transparency and that the linear scaling of rapidity loss with rapidity observed at lower energies is broken. The energy loss per participant nucleon is estimated to be 73+/-6 GeV.
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Citation
Bearden, IG; Beavis, D, et al. Nuclear stopping in Au+Au collisions at root s(NN) = 200 GeV. PHYSICAL REVIEW LETTERS. September 2004. 93(10)
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