Threshold Resummation in Momentum Space from Effective Field Theory
| dc.creator | Becher, Thomas | |
| dc.creator | Neubert, Matthias | |
| dc.date | 2006-05-04 | |
| dc.date | 2006-08-23 | |
| dc.date.accessioned | 2026-07-07T11:26:56Z | |
| dc.date.available | 2026-07-07T11:26:56Z | |
| dc.description | Methods from soft-collinear effective theory are used to perform the threshold resummation of Sudakov logarithms for the deep-inelastic structure function F_2(x,Q^2) in the endpoint region x->1 directly in momentum space. An explicit all-order formula is derived, which expresses the short-distance coefficient function C in the convolution F_2=C*phi_q in terms of Wilson coefficients and anomalous dimensions defined in the effective theory. Contributions associated with the physical scales Q^2 and Q^2(1-x) are separated from non-perturbative hadronic physics in a transparent way. A crucial ingredient to the momentum-space resummation is the exact solution to the integro-differential evolution equation of the jet function, which is derived. The methods developed in this Letter can be applied to many other hard QCD processes. | |
| dc.description | 4 pages, 1 figure. Version to appear in PRL | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0605050 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0605050 | |
| dc.identifier | Phys.Rev.Lett.97:082001,2006 | |
| dc.identifier | doi:10.1103/PhysRevLett.97.082001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/195993 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Threshold Resummation in Momentum Space from Effective Field Theory | |
| dc.type | text |