ReDY - Resummed
Drell-Yan at NNLO + NNLL
author: Marco Bonvini
Description
ReDY is a C++ code which is able to compute both
- rapidity distributions
- invariant-mass distributions
for the Drell-Yan process: p+p(bar) -> γ*/Z/W -> lepton-pair.
The process is inclusive over all QCD radiation.
The code reproduces the QCD correction of the hard process at:
- fixed-order: up to NNLO
- resumed level: up to NNLL
The fixed-order computation is based on the Vrap code.
The ReDY code itself is an extension and an improvement of this package.
The soft-gluon resummation is realized using both the Borel and the minimal prescriptions.
The resummation of rapidity distributions is based on the paper:
Download
Here you can download the gzipped tarball containig the code: ReDY.tgz (latest version)
You can take a look at the installation instructions.
Note that you need to have installed in your system the following libraries:
- LHAPDF - Les Houches Accord PDF interface
- GSL - Gnu Scientific Libraries
Version history
- 27-02-2012: ReDY v0.3 (recommended)
New: control constant terms in Borel prescription, bugfix (Borel prescription with log(1/z))
- 03-03-2011: ReDY v0.2
New: approximate PDFs (faster), integration over invariant mass
- 30-01-2011: ReDY v0.1
Some credits.
Contacts
For any problem or suggestion, contact me at (one of) the addresses
- marco.bonvini [at] ge.infn.it
- marco.bonvini [at] cern.ch