Self-similarity of proton spin and z-scaling

16th Workshop on High Energy Spin Physics

Tokarev, M.^1 ; Zborovský, I.^2

Joint Institute for Nuclear Research, Moscow region, Dubna, Russia^1

Nuclear Physics Institute, Academy of Sciences of the Czech Republic, e, Czech Republic^2

关键词: Extracting information;    Fragmentation process;    Polarization transfer;    Polarized particles;    Proton proton collisions;    Proton spins;    Self-similarities;    Spin asymmetry;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/678/1/012044/pdf
DOI  :  10.1088/1742-6596/678/1/012044

来源: IOP

【 摘 要 】

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 ALLof jet and π0-meson production and the coefficient of polarization transfer DLLmeasured in proton-proton collisions at √s = 200 GeV at RHIC are analyzed in the framework of z-scaling. The spin-dependent fractal dimension of proton is estimated.