arXiv:1509.08854·v1·High Energy Physics — Phenomenology
Self-similarity of proton spin and z-scaling
M.Tokarev (1)🇷🇺 · I.Zborovsky (2) ((1) Veksler and Baldin Laboratory of High Energy Physics, Joint Institute for Nuclear Research, Dubna, Moscow region, Russia, (2) Nuclear Physics Institute, Academy of Sciences of the Czech Republic, Rez, Czech Republic)🇨🇿
Abstract
The concept of z-scaling previously developed for analysis of inclusive reactions in proton-proton collisions is applied for description of processes with polarized particles. Hypothesis of self-similarity of the proton spin structure is discussed. The possibility of extracting information on spin-dependent fractal dimensions of hadrons and fragmentation process from the cross sections and asymmetries is justified. The double longitudinal spin asymmetry A_{LL} of jet and pi0-meson production and the coefficient of polarization transfer D_{LL} measured in proton-proton collisions at sqrt s = 200 GeV at RHIC are analyzed in the framework of z-scaling. The spin-dependent fractal dimension of proton is estimated.
Comments: 4 pages, LaTeX, 6 figures, Presented at the XVI Workshop on High Energy Spin Physics (DSPIN-15), 8-12 September, 2015, Dubna, Russia