Numerical evaluation of multi-gluon amplitudes for High Energy Factorization - INSPIRE

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Numerical evaluation of multi-gluon amplitudes for High Energy Factorization

M. Bury
(
- Cracow, INP
)
,
A. van Hameren
(
- Cracow, INP
)

Mar 30, 2015

7 pages

Published in:

Comput.Phys.Commun. 196 (2015) 592-598

Published: Nov, 2015

e-Print:

1503.08612 [hep-ph]

DOI:

10.1016/j.cpc.2015.06.023

Report number:

IFJPAN-IV-2015-4

View in:

ADS Abstract Service

reference search67 citations

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Abstract: (Elsevier)

We present a program to evaluate tree-level multi-gluon amplitudes with up to two of them off-shell. Furthermore, it evaluates squared amplitudes summed over colors and helicities for up to six external gluons. It employs both analytic expressions, obtained via BCFW recursion, and numerical BCFW recursion. It has been validated numerically with the help of an independent program employing numerical Dyson–Schwinger recursion.

Note:

12 pages

QCD
Amplitudes
Off-shell
energy: high
tree approximation
factorization
off-shell
scattering amplitude
quantum chromodynamics
helicity

References(47)

Figures(0)

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