HELAS and MadGraph/MadEvent with spin-2 particles

被引：0
|
作者：
K. Hagiwara
J. Kanzaki
Q. Li
K. Mawatari
机构：
[1] KEK,Institut für Theoretische Physik
[2] Theory Division and Sokendai,School of Physics
[3] KEK,undefined
[4] Universität Karlsruhe,undefined
[5] Korea Institute for Advanced Study,undefined
来源：
The European Physical Journal C | 2008年 / 56卷
关键词：
Vector Boson; Helicity Amplitude; Scalar Boson; Massive Graviton; General Coordinate Transformation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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.
引用
收藏
页码：435 / 447
页数：12
相关论文
共 50 条
  • [1] HELAS and MadGraph/MadEvent with spin-2 particles
    Hagiwara, K.
    Kanzaki, J.
    Li, Q.
    Mawatari, K.
    EUROPEAN PHYSICAL JOURNAL C, 2008, 56 (03): : 435 - 447
  • [2] HELAS and MadGraph with spin-3/2 particles
    K. Hagiwara
    K. Mawatari
    Y. Takaesu
    The European Physical Journal C, 2011, 71
  • [3] HELAS and MadGraph with spin-3/2 particles
    Hagiwara, K.
    Mawatari, K.
    Takaesu, Y.
    EUROPEAN PHYSICAL JOURNAL C, 2011, 71 (01):
  • [4] New Developments in MadGraph/MadEvent
    Alwall, J.
    Artoisenet, P.
    de Visscher, S.
    Duhrl, C.
    Frederix, R.
    Herquet, M.
    Mattelaer, O.
    SUPERSYMMETRY AND THE UNIFICATION OF FUNDAMENTAL INTERACTIONS, 2008, 1078 : 84 - +
  • [5] HELAS and MadGraph with goldstinos
    K. Mawatari
    Y. Takaesu
    The European Physical Journal C, 2011, 71
  • [6] HELAS and MadGraph with goldstinos
    Mawatari, K.
    Takaesu, Y.
    EUROPEAN PHYSICAL JOURNAL C, 2011, 71 (06):
  • [7] MadGraph/MadEvent : a multipurpose event generator
    Herquet, Michel
    Maltoni, Fabio
    NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2008, 179-80 : 211 - 217
  • [8] Madgraph/madevent - The new web generation
    Alwall, J.
    DEEP INELASTIC SCATTERING, 2007, : 499 - 502
  • [9] MadEvent: automatic event generation with MadGraph
    Maltoni, F
    Stelzer, T
    JOURNAL OF HIGH ENERGY PHYSICS, 2003, (02):
  • [10] PARTICLES WITH SPIN-2
    DASILVEIRA, A
    PHYSICAL REVIEW, 1955, 97 (04): : 1144 - 1144
12345