Two-loop scalar self-energies and pole masses in a general renormalizable theory with massless gauge bosons
| dc.creator | Martin, Stephen P. | |
| dc.date | 2005-02-18 | |
| dc.date | 2005-09-12 | |
| dc.date.accessioned | 2026-07-07T11:31:45Z | |
| dc.date.available | 2026-07-07T11:31:45Z | |
| dc.description | I present the two-loop self-energy functions for scalar bosons in a general renormalizable theory, within the approximation that vector bosons are treated as massless or equivalently that gauge symmetries are unbroken. This enables the computation of the two-loop physical pole masses of scalar particles in that approximation. The calculations are done simultaneously in the mass-independent \bar{MS}, \bar{DR}, and \bar{DR}' renormalization schemes, and with arbitrary covariant gauge fixing. As an example, I present the two-loop SUSYQCD corrections to squark masses, which can increase the known one-loop results by of order one percent. More generally, it is now straightforward to implement all two-loop sfermion pole mass computations in supersymmetry using the results given here, neglecting only the electroweak vector boson masses compared to the superpartner masses in the two-loop parts. | |
| dc.description | 16 pages, 4 figures. v2: typo in eq. (5.30) fixed | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0502168 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0502168 | |
| dc.identifier | Phys.Rev.D71:116004,2005 | |
| dc.identifier | doi:10.1103/PhysRevD.71.116004 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/197373 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Two-loop scalar self-energies and pole masses in a general renormalizable theory with massless gauge bosons | |
| dc.type | text |