You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
29 lines
1.4 KiB
29 lines
1.4 KiB
<?xml version="1.0" encoding="UTF-8"?>
|
|
<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
|
|
<pkgmetadata>
|
|
<maintainer type="project">
|
|
<email>sci-physics@gentoo.org</email>
|
|
<name>Gentoo Physics Project</name>
|
|
</maintainer>
|
|
<longdescription lang="en">
|
|
The HepMC package is an object oriented event record written in C++
|
|
for High Energy Physics Monte Carlo Generators. Many extensions from
|
|
HEPEVT, the Fortran HEP standard, are supported: the number of entries
|
|
is unlimited, spin density matrices can be stored with each vertex,
|
|
flow patterns (such as color) can be stored and traced, integers
|
|
representing random number generator states can be stored, and an
|
|
arbitrary number of event weights can be included. Particles and
|
|
vertices are kept separate in a graph structure, physically similar to
|
|
a physics event. The added information supports the modularisation of
|
|
event generators. The package has been kept as simple as possible with
|
|
minimal internal/external dependencies. Event information is accessed
|
|
by means of iterators supplied with the package.
|
|
|
|
Reference: M. Dobbs and J.B. Hansen, Comput. Phys. Commun. 134 (2001)41.
|
|
</longdescription>
|
|
<use>
|
|
<flag name="gev">Build with GeV instead of default MeV for momentum units</flag>
|
|
<flag name="cm">Build with cm instead of default mm for length units</flag>
|
|
</use>
|
|
</pkgmetadata>
|