Abstract
The PHOBOS experiment at the Relativistic Heavy Ion Collider (RHIC), comprising the spectrometer with multiple layers of silicon wafers, is an excellent detector for very low transverse momentum (p T ) particles. Transverse momentum distributions of π–+π+, K–+K+ and \(p+\overline{p}\) produced at mid-rapidity are presented for the 15% most central Au-Au collisions at \(\sqrt{s_{NN}}\) = 200 GeV. The momentum ranges for measured particles are from 30 to 50 MeV/c for pions, 90 to 130 MeV/c for kaons and 140 to 210 MeV/c for protons and antiprotons. The measurement method is briefly described. A comparison of the p T spectra to experimental results at higher particle momenta and to model predictions is discussed.
PACS: 25.75.-q
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Back, B., Baker, M., Barton, D. et al. Low-p T spectra of identified charged particles in \(\sqrt{s_{NN}}\) = 200 GeV Au+Au collisions from PHOBOS experiment at RHIC. Eur Phys J C 33 (Suppl 1), s600–s602 (2004). https://doi.org/10.1140/epjcd/s2004-03-1700-3
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DOI: https://doi.org/10.1140/epjcd/s2004-03-1700-3