ALPGEN, a generator for hard multiparton processes in hadronic collisions
Abstract
This paper presents a new event generator, ALPGEN, dedicated to the study of multiparton hard processes in hadronic collisions. The code performs, at the leading order in QCD and EW interactions, the calculation of the exact matrix elements for a large set of partonlevel processes of interest in the study of the Tevatron and LHC data. The current version of the code describes the following final states: (W rightarrow f fbar') Q Qbar + N jets (Q being a heavy quark, and f=l,q), with N < = 4; (Z/gamma*rightarrow f fbar), Q Qbar + N jets (f=l,nu), with N < = 4; (W rightarrow f fbar') + charm + N jets (f=l,q, N < = 5); (W rightarrow f fbar') + N jets (f=l,q) and (Z/gamma*rightarrow f fbar) + N jets (f=l,nu), with N < = 6; nW + mZ+ lH + N jets, with n + m + l + N < = 8, N < = 3, including all 2fermion decay modes of W and Z bosons, with spin correlations; Q Qbar + N jets, with t rightarrow b f fbar' decays and relative spin correlations included if Q=t, and N < = 6; Q Qbar Q' Qbar'+ N jets, with Q and Q' heavy quarks (possibly equal) and N < = 4; H Q Qbar + N jets, with t rightarrow b f fbar' decays and relative spin correlations included if Q=t and N < = 4; N jets, with N < = 6. Partonlevel events are generated, providing full information on their colour and flavour structure, enabling the evolution of the partons into fully hadronised final states.
 Publication:

Journal of High Energy Physics
 Pub Date:
 July 2003
 DOI:
 10.1088/11266708/2003/07/001
 arXiv:
 arXiv:hepph/0206293
 Bibcode:
 2003JHEP...07..001M
 Keywords:

 QCD Jets Hadronic Colliders;
 High Energy Physics  Phenomenology
 EPrint:
 1+38 pages, uses JHEP.cls. Documents code version 1.2: extended list of processes, updated documentation and bibliography