The European physical journal. C, Particles and fields, 2008-08, Vol.56 (3), p.435-447
2008
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Details
- Autor(en) / Beteiligte
- Titel
- HELAS and MadGraph/MadEvent with spin-2 particles
- Ist Teil von
- The European physical journal. C, Particles and fields, 2008-08, Vol.56 (3), p.435-447
- Ort / Verlag
- Berlin/Heidelberg: Springer-Verlag
- Erscheinungsjahr
- 2008
- Quelle
- SpringerLink_现刊
- Beschreibungen/Notizen
- 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 HELAS (HELicity Amplitude Subroutines) library. They are coded in such a way that arbitrary scattering amplitudes with one graviton production and its decays can be generated automatically by MadGraph and 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.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1434-6044eISSN: 1434-6052DOI: 10.1140/epjc/s10052-008-0663-xTitel-ID: cdi_proquest_journals_2293805715
- Format
- –
- Schlagworte
- Amplitudes, Astronomy, Astrophysics and Cosmology, Coordinate transformations, Elementary Particles, Gravitons, Hadrons, Heavy Ions, Helicity, Mathematical analysis, Measurement Science and Instrumentation, Nuclear Energy, Nuclear Physics, Particle spin, Physics, Physics and Astronomy, Quantum Field Theories, Quantum Field Theory, Special Article - Tools for Experiment and Theory, Standard model (particle physics), String Theory, Subroutines, Tensors