Time-reversal-odd phenomena in QCD
| dc.creator | Mulders, P. J. | |
| dc.date | 2008-10-21 | |
| dc.date.accessioned | 2026-07-07T12:43:16Z | |
| dc.date.available | 2026-07-07T12:43:16Z | |
| dc.description | Single-spin asymmetries were long thought to vanish in high-energy scattering processes because of their specific time-reversal behavior. Time-reversal-odd phenomena, however, appear naturally when one includes effects of intrinsic transverse momenta of partons. The partons, quarks and gluons, enter the description of high-energy scattering processes in correlators which contain quark and gluon fields. The correlators, parameterized in terms of distribution and fragmentation functions, constitute matrix elements of non-local field configurations. For transverse momentum dependent (TMD) correlators the non-locality is along a light-front, in contrast to the non-locality along the light-cone for collinear correlators, integrated over transverse momenta. The TMD correlators require a careful treatment to assure color gauge invariance, leading to nontrivial gauge links connecting the parton fields. These give rise to time-reversal-odd phenomena, showing up as single spin and azimuthal asymmetries. The gauge links, arising from multi-gluon initial and final state interactions, depend on the color flow in the process, which has consequences for issues like universality and factorization. | |
| dc.description | To appear in the proceedings of Light Cone 2008: Relativistic Nuclear and Particle Physics (LC2008), Mulhouse, France, 7-11 Jul 2008 | |
| dc.identifier | https://arxiv.org/abs/0810.3772 | |
| dc.identifier | http://arxiv.org/abs/0810.3772 | |
| dc.identifier | PoS LC2008:034,2008 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/220363 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Time-reversal-odd phenomena in QCD | |
| dc.type | text |