Single-spin asymmetry from pomeron-odderon interference
| dc.creator | Jarvinen, M. | |
| dc.date | 2006-10-09 | |
| dc.date | 2006-11-21 | |
| dc.date.accessioned | 2026-07-07T10:25:38Z | |
| dc.date.available | 2026-07-07T10:25:38Z | |
| dc.description | The transverse single-spin asymmetry A_N observed in high energy proton-proton collisions p^\uparrow p \to pi X has been found to increase with the momentum fraction x_F of the pion up to the largest measured x_F \sim 0.8, where A_N \simeq 40%. We consider the possibility that the asymmetry is due to a non-perturbatively generated spin-flip coupling in soft rescattering on the target proton. We demonstrate using perturbation theory that a non-vanishing asymmetry can be generated through interference between exchanges of even and odd charge conjugation provided both helicity flip and non-flip couplings contribute. Pomeron and odderon exchange can thus explain the energy independence of the asymmetry and predicts that the asymmetry should persist in events with large rapidity gaps. | |
| dc.description | 6 pages, 4 figures. Talk at the "Advanced studies institute on symmetries and spin", Prague, July 19-26. v2: Added references | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0610101 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0610101 | |
| dc.identifier | Czech.J.Phys.56:F209-F214,2006 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/176605 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Single-spin asymmetry from pomeron-odderon interference | |
| dc.type | text |