Saturation of Hadron Production in Proton-(anti)Proton Collisions at Low PT

0388566 - ÚJF 2013 RIV RU eng C - Conference Paper (international conference)
Zborovský, Imrich - Tokarev, M. V.
Saturation of Hadron Production in Proton-(anti)Proton Collisions at Low PT.
Relativistic nuclear physics and quantum chromodynamics: proceedings of the XX International Baldin seminar on high energy physics problems. Dubna: JIRN, 2011, s. 265-271. ISBN 978-5-9530-0308-7.
[XX International Baldin Seminar on High Energy Physics Problems. Dubna (RU), 04.10.2010-09.10.2010]
R&D Projects: GA MŠMT LA08002
Institutional research plan: CEZ:AV0Z10480505
Keywords : hadron production * Tevatron * scaling
Subject RIV: BE - Theoretical Physics

Experimental data on inclusive cross sections of the hadrons produced in high energy proton-(anti)proton collisions are analyzed in the z-scaling approach. Saturation of the scaling function ψ(z) for z < 0.1 (low transverse momenta) was found. The first results on charged hadron spectra in pp collisions obtained by the CMS Collaboration at the LHC have confirmed the saturation down to the value of z = 0.05. The CMS data on K0 s -meson production at s 1/2 = 7 TeV extend the saturation region even to a lower value of z = 0.002 in the new energy domain. A microscopic scenario of hadron production at a constituent level based on the z-scaling is discussed in the saturation regime.
Permanent Link: http://hdl.handle.net/11104/0217563