Violation of Geometrical Scaling in pp Collisions at NA61/SHINE

Abstract

We analyze geometrical scaling (GS) of negative pion multiplicity p_T distributions at NA61/SHINE energies. We show that even though NA61/SHINE energies are low, one may expect to find GS in the particle spectra. We argue that qualitative behavior of ratios of multiplicities at different energies is in agreement with a simple picture of GS which is violated for p_T smaller than some nonperturbative scale Lambda and when larger Bjorken x of one of the scattering patrons crosses x_max above which gluonic cloud becomes dilute and quark degrees of freedom become important.

5 pages, 3 figures, in v3 minor typos corrected, references added. Version accepted in Phys. Rev. D

References in corpus (5)

• Saturation and Scaling of Multiplicity, Mean p_T and p_T Distributions from 200 GeV < sqrt{s} < 7 TeV - Addendum
• HERA data and DGLAP evolution: theory and phenomenology
• Geometrical scaling in hadronic collisions
• Quantitative Study of Geometrical Scaling in Deep Inelastic Scattering at HERA
• Systematic Analysis of Scaling Properties in Deep Inelastic Scattering

Cited by in corpus (6)

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• Recent results from NA61/SHINE
• Geometrical scaling in high energy collisions and its breaking
• Saturation and geometrical scaling