MadGraph/MadEvent v4: the new web generation

被引:983
作者
Alwall, Johan
Demin, Pavel
de Visscher, Simon
Frederix, Rikkert
Herquet, Michel
Maltoni, Fabio
Plehn, Tilman
Rainwaterd, David L.
Stelzer, Tim
机构
[1] Stanford Linear Accelerator Center, Stanford, CA 94309
[2] Centre for Particle Physics and Phenomenology (CP3), Université Catholique de Louvain, 1348 Louvain-la-Neuve
[3] School of Physics, James Clerk Maxwell Building, University of Edinburgh
[4] Dept. of Physics and Astronomy, University of Rochester, Rochester
[5] Dept. of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 61801
来源
JOURNAL OF HIGH ENERGY PHYSICS | 2007年 / 09期
关键词
hadronic colliders; standard model; beyond standard model;
D O I
10.1088/1126-6708/2007/09/028
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We present the latest developments of the MadGraph/MadEvent Monte Carlo event generator and several applications to hadron collider physics. In the current version events at the parton, hadron and detector level can be generated directly from a web interface, for arbitrary processes in the Standard Model and in several physics scenarios beyond it (HEFT, MSSM, 2HDM). The most important additions are: a new frame work for implementing user-defined new physics models; a standalone running mode for creating and testing matrix elements; generation of events corresponding to different processes, such as signal(s) and backgrounds, in the same run; two platforms for data analysis, where events are accessible at the parton, hadron and detector level; and the generation of inclusive multi-jet samples by combining parton-level events with parton showers. To illustrate the new capabilities of the package some applications to hadron collider physics are presented: I. Higgs search in pp-->H-->W+W-: signal and backgrounds. II. Higgs CP properties: pp-->Hjj in the HEFT. III. Spin of a new resonance from lepton angular distributions. IV. Single-top and Higgs associated production in a generic 2HDM. V. Comparison of strong SUSY pair production at the SPS points. VI. Inclusive W+jets matched samples: comparison with Tevatron data.
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页数:39
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