The Two-loop Soft Anomalous Dimension Matrix and Resummation at Next-to-next-to Leading Pole
| dc.creator | Aybat, S. Mert | |
| dc.creator | Dixon, Lance J. | |
| dc.creator | Sterman, George | |
| dc.date | 2006-07-27 | |
| dc.date.accessioned | 2026-07-07T13:00:24Z | |
| dc.date.available | 2026-07-07T13:00:24Z | |
| dc.description | We extend the resummation of dimensionally-regulated amplitudes to next-to-next-to-leading poles. This requires the calculation of two-loop anomalous dimension matrices for color mixing through soft gluon exchange. Remarkably, we find that they are proportional to the corresponding one-loop matrices. Using the color generator notation, we reproduce the two-loop single-pole quantities H^(2) introduced by Catani for quark and gluon elastic scattering. Our results also make possible threshold and a variety of other resummations at next-to-next-to leading logarithm. All of these considerations apply to 2 to n processes with massless external lines. | |
| dc.description | 52 pages, revtex, 4 eps figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0607309 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0607309 | |
| dc.identifier | Phys.Rev.D74:074004,2006 | |
| dc.identifier | doi:10.1103/PhysRevD.74.074004 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/225829 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | The Two-loop Soft Anomalous Dimension Matrix and Resummation at Next-to-next-to Leading Pole | |
| dc.type | text |