Programs in Physics & Physical Chemistry
|[Licence| Download | New Version Template] aehn_v1_0.tar.gz(1666 Kbytes)|
|Manuscript Title: CAMORRA: a C++ library for recursive computation of particle scattering amplitudes|
|Authors: R. Kleiss, G. van den Oord|
|Program title: CAMORRA|
|Catalogue identifier: AEHN_v1_0|
Distribution format: tar.gz
|Journal reference: Comput. Phys. Commun. 182(2011)435|
|Programming language: C++.|
|Operating system: Tested on Linux and Mac OS, but should work on any system.|
|Keywords: template library, Les-Houches interface.|
Nature of problem:
Current recursive matrix element computation programs are confined to standard model amplitudes, whereas many new physics signatures and backgrounds at hadron colliders are associated with multi-parton final states.
The library applies the Berends-Giele/Caravaglios-Moretti recursive algorithm in a generic way applicable to a wide range of quantum field theories. It allows the user to define a new physics model and consequently compute its predicted scattering amplitudes with exponential growth of the computing time with process multiplicity rather than factorial growth.
There are no built-in restrictions on process complexity.
CAMORRA can cope with Majorana fermions
A ten-gluon amplitude typically takes 9 ms per event.
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