Anomalous nonperturbative quark-gluon chromomagnetic interaction and spin effects in high energy reactions

Autor:	Korchagin, N. S., Kochelev, N. I.
Rok vydání:	2014
Předmět:	High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
Popis:	We disscuss a new nonperturbative mechanism for spin effects in high energy reactions with hadrons. This mechanism is based on the existence of a large anomalous quark chromomagnetic moment (AQCM) induced by the nontrivial topological structure of QCD vacuum. As an example, we estimate the contribution of this interaction to the single spin asymmetry (SSA) in the inclusive pion production in the proton-proton scattering. We show that SSA induced by AQCM is large and its value is in qualitative agreement with experimental data. Comment: 4 pages,2 figures, to appear in DSPIN-13 Proceedings, added reference
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1402.3101 Zobrazit plný text záznamu View this record from Arxiv