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

0388566 - ÚJF 2013 RIV RU eng C - Konferenční příspěvek (zahraniční konf.)
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]
Grant CEP: GA MŠMT LA08002
Výzkumný záměr: CEZ:AV0Z10480505
Klíčová slova: hadron production * Tevatron * scaling
Kód oboru RIV: BE - Teoretická fyzika

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.
Trvalý link: http://hdl.handle.net/11104/0217563