Compact Dimensions and their Radiative Mixing
| dc.creator | Ghilencea, D. M. | |
| dc.date | 2003-11-20 | |
| dc.date | 2004-06-01 | |
| dc.date.accessioned | 2026-07-07T11:09:28Z | |
| dc.date.available | 2026-07-07T11:09:28Z | |
| dc.description | For one and two dimensional field theory orbifolds we compute in the DR scheme the full dependence on the momentum scale (q) of the one-loop radiative corrections to the 4D gauge coupling. Imposing a discrete "shift" symmetry of summing the infinite towers of associated Kaluza-Klein (KK) modes, it is shown that higher dimension operators are radiatively generated as one-loop counterterms for the case of two (but not for one) compact dimension(s). They emerge as a ``radiative mixing'' of effects (Kaluza-Klein infinite sums) associated with both compact dimensions. Particular attention is paid to the link of the one-loop corrections with their counterparts computed in infrared regularised 4D N=1 heterotic string orbifolds with N=2 sectors. The correction from these sectors usually ignores higher order terms in the IR string regulator (lambda_s->0) of type lambda_s ln(alpha'), but these become relevant in the field theory limit alpha'->0. Such terms ultimately re-emerge in pure field theory calculations of $Π(q^2)$ as higher dimension one-loop counterterms. We stress the importance of such terms for the unification of gauge couplings and for the predicted value of the string scale. | |
| dc.description | 14 pages, LaTeX; additional comments | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0311264 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0311264 | |
| dc.identifier | Phys.Rev.D70:045018,2004 | |
| dc.identifier | doi:10.1103/PhysRevD.70.045018 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/190476 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Compact Dimensions and their Radiative Mixing | |
| dc.type | text |