Extending CKKW-merging to one-loop matrix elements
نویسندگان
چکیده
منابع مشابه
Extending CKKW-merging to One-Loop Matrix Elements
We extend earlier schemes for merging tree-level matrix elements with parton showers to include also merging with one-loop matrix elements. In this paper we make a first study on how to include one-loop corrections, not only for events with a given jet multiplicity, but simultaneously for several different jet multiplicities. Results are presented for the simplest non-trivial case of hadronic e...
متن کاملRecursive Approach to One-loop QCD Matrix Elements
Recently, a “weak-weak” duality, between N = 4 super Yang-Mills and a topological string theory propagating in twistor space, has been proposed [1] implying an identical perturbative S-matrix for the two theories. The existence of a duality between the two theories implies a surprising structure within the S-matrix of gauge theory. This has inspired considerable progress in computing scattering...
متن کاملA modified CKKW matrix element merging approach to angular-ordered parton showers
A modified version of the CKKW matrix element merging algorithm is presented, suitable for use in an angular-ordered parton shower, using truncated showers and forced splittings. The algorithm is implemented in the Herwig++ Monte Carlo event generator for the benchmark process e+e− → hadrons. Results are presented at parton and hadron levels, demonstrating a smooth merging between the matrix el...
متن کاملMerging Parton Showers and Matrix Elements
This thesis considers models for describing high energy particle collisions. Existing phenomonological models are modified and new implementations made in order to achive a better description of states with several hard jets. To predict final state hadrons, parton showers are used together with pheonomenological hadronization models. These models describe a wide range of observables, but have t...
متن کاملMulti-jet merging with NLO matrix elements
In the algorithm presented here, the ME+PS approach [1] to merge samples of tree-level matrix elements into inclusive event samples is combined with the POWHEG method [2], which includes exact next-to-leading order matrix elements in the parton shower. The advantages of the method are discussed and the quality of its implementation in SHERPA is exemplified by results for e+e− annihilation into ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2008
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2008/12/070