Power Corrections and KLN Cancellations
| dc.creator | Akhoury, R. | |
| dc.creator | Stodolsky, L. | |
| dc.creator | Zakharov, V. I. | |
| dc.date | 1996-09-16 | |
| dc.date.accessioned | 2026-07-07T11:35:18Z | |
| dc.date.available | 2026-07-07T11:35:18Z | |
| dc.description | We consider perturbative expansions in theories with an infrared cutoff $λ$. The infrared sensitive pieces are defined as terms nonanalytic in the infinitesimal $λ^2$ and powers of this cutoff characterize the strength of these infrared contributions. It is argued that the sum over the initial and final degenerate ( as $λ\to 0$) states which is required by the Kinoshita - Lee - Nauenberg theorem eliminates terms of order $λ^0$ and $λ^1$. However, the quadratic and higher order terms in general do not cancel. This is investigated in simple examples of KLN cancellations, of relevance to the inclusive decay rate of a heavy particle, at the one loop level. | |
| dc.description | 20 pages, LaTeX | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9609368 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9609368 | |
| dc.identifier | Nucl.Phys.B516:317-332,1998 | |
| dc.identifier | doi:10.1016/S0550-3213(97)00766-9 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/198545 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Power Corrections and KLN Cancellations | |
| dc.type | text |