HELAS and MadGraph/MadEvent with spin-2 particles
| dc.creator | Hagiwara, Kaoru | |
| dc.creator | Kanzaki, Junichi | |
| dc.creator | Li, Qiang | |
| dc.creator | Mawatari, Kentarou | |
| dc.date | 2008-05-16 | |
| dc.date.accessioned | 2026-07-07T11:50:52Z | |
| dc.date.available | 2026-07-07T11:50:52Z | |
| dc.description | Fortran subroutines to calculate helicity amplitudes with massive spin-2 particles (massive gravitons), which couple to the standard model particles via the energy momentum tensor, are added to the {\tt HELAS} ({\tt HEL}icity {\tt A}mplitude {\tt S}ubroutines) library. They are coded in such a way that arbitrary scattering amplitudes with one graviton production and its decays can be generated automatically by {\tt MadGraph} and {\tt MadEvent}, after slight modifications. All the codes have been tested carefully by making use of the invariance of the helicity amplitudes under the gauge and general coordinate transformations. | |
| dc.description | 11 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/0805.2554 | |
| dc.identifier | http://arxiv.org/abs/0805.2554 | |
| dc.identifier | Eur.Phys.J.C56:435-447,2008 | |
| dc.identifier | doi:10.1140/epjc/s10052-008-0663-x | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/203703 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | HELAS and MadGraph/MadEvent with spin-2 particles | |
| dc.type | text |