Single Transverse-Spin Asymmetries at Large-x
| dc.creator | Brodsky, Stanley J. | |
| dc.creator | Yuan, Feng | |
| dc.date | 2006-10-18 | |
| dc.date.accessioned | 2026-07-07T11:05:55Z | |
| dc.date.available | 2026-07-07T11:05:55Z | |
| dc.description | The large-$x$ behavior of the transverse-momentum dependent quark distributions is analyzed in the factorization-inspired perturbative QCD framework, particularly for the naive time-reversal-odd quark Sivers function which is responsible for the single transverse-spin asymmetries in various semi-inclusive hard processes. By examining the dominant hard gluon exchange Feynman diagrams, and using the resulting power counting rule, we find that the Sivers function has power behavior $(1-x)^4$ at $x \to 1$, which is one power of $(1-x)$ suppressed relative to the unpolarized quark distribution. These power-counting results provide important guidelines for the parameterization of quark distributions and quark-gluon correlations. | |
| dc.description | 20 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0610236 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0610236 | |
| dc.identifier | Phys.Rev.D74:094018,2006 | |
| dc.identifier | doi:10.1103/PhysRevD.74.094018 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/189358 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Single Transverse-Spin Asymmetries at Large-x | |
| dc.type | text |