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arXiv · 1301.4647

Violation of Geometrical Scaling in pp Collisions at NA61/SHINE

Michal Praszalowicz
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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.

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Michal Praszalowicz. 2013-04-09. Violation of Geometrical Scaling in pp Collisions at NA61/SHINE. https://doi.org/10.1103/physrevd.87.071502

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