Charged antiparticle to particle ratios near midrapidity in p+p collisions at sqrt(s_NN)=200 GeV
| dc.creator | the PHOBOS Collaboration | |
| dc.creator | Back, B. B. | |
| dc.date | 2004-09-02 | |
| dc.date.accessioned | 2026-07-07T10:50:48Z | |
| dc.date.available | 2026-07-07T10:50:48Z | |
| dc.description | The ratios of the yields of primary charged antiparticles to particles have been obtained for pions, kaons, and protons near midrapidity for p+p collisions at sqrt(s_NN) = 200 GeV. Ratios of <pi-/pi+>=1.000 +/- 0.012 (stat.) +/- 0.019 (syst.), <K-/K+>=0.93 +/- 0.05 (stat.) +/- 0.03 (syst.), and <pbar/p>=0.85 +/- 0.04 (stat.) +/- 0.03 (syst.) have been measured. The reported values represent the ratio of the yields averaged over the rapidity range of 0.1<y_{pi}<1.3 and 0<y_{K,p}<0.8, and for transverse momenta of 0.1<p_T^{pi,K}<1.0 GeV/c and 0.3<p_T^{p}<1.0 GeV/c. Within the uncertainties, all three ratios are consistent with the values measured in d+Au collisions at the same energy. The data are compared to results from other collision systems and energies. | |
| dc.description | 3 pages, 2 figures, 1 table, submitted to Phys. Rev. C | |
| dc.identifier | https://arxiv.org/abs/nucl-ex/0409003 | |
| dc.identifier | http://arxiv.org/abs/nucl-ex/0409003 | |
| dc.identifier | Phys.Rev.C71:021901,2005 | |
| dc.identifier | doi:10.1103/PhysRevC.71.021901 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/184654 | |
| dc.subject | Nuclear Experiment | |
| dc.title | Charged antiparticle to particle ratios near midrapidity in p+p collisions at sqrt(s_NN)=200 GeV | |
| dc.type | text |