The Massive Yang-Mills Model and Diffractive Scattering
| dc.creator | Forshaw, J. R. | |
| dc.creator | Papavassiliou, J. | |
| dc.creator | Parrinello, C. | |
| dc.date | 1998-08-24 | |
| dc.date | 1999-02-08 | |
| dc.date.accessioned | 2026-07-07T10:52:52Z | |
| dc.date.available | 2026-07-07T10:52:52Z | |
| dc.description | We argue that the massive Yang-Mills model of Kunimasa and Goto, Slavnov, and Cornwall, in which massive gauge vector bosons are introduced in a gauge-invariant way without resorting to the Higgs mechanism, may be useful for studying diffractive scattering of strongly interacting particles. We perform in this model explicit calculations of S-matrix elements between quark states, at tree level, one loop, and two loops, and discuss issues of renormalisability and unitarity. In particular, it is shown that the S-matrix element for quark scattering is renormalisable at one-loop order and is only logarithmically non-renormalisable at two loops. The discrepancies in the ultraviolet regime between the one-loop predictions of this model and those of massless QCD are discussed in detail. Also, some of the similarities and differences between the massive Yang-Mills model and theories with a Higgs mechanism are analysed at the level of the S-matrix. Finally, we briefly discuss the high-energy behaviour of the leading-order amplitude for quark-quark elastic scattering in the diffractive region. The above analysis sets up the stage for carrying out a systematic computation of the higher order corrections to the two-gluon exchange model of the Pomeron using massive gluons inside quantum loops. | |
| dc.description | 38 pages, Latex, with 7 PostScript pictures. Introduction and Section 6 further enlarged, minor typos corrected | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9808392 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9808392 | |
| dc.identifier | Phys.Rev.D59:074008,1999 | |
| dc.identifier | doi:10.1103/PhysRevD.59.074008 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/185301 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | The Massive Yang-Mills Model and Diffractive Scattering | |
| dc.type | text |