Next Steps in Les Houches Event format (LHEF): An overview and discussion

Friday 25 Oct 2013, 14:00 → 16:00 Europe/Zurich

4/3-006 - TH Conference Room (CERN)

Leif Lönnblad (Lund University (SE)), Sanjay Padhi (Univ. of California San Diego (US))

The Les Houches Accord event format has been immensely successful so far in its usage with information from matrix-elements to the general-purpose parton shower generators. The Les Houches Event File (LHEF) accord introduced in 2006 standardizes the way such event files are currently structured. With the evolution of matrix-element-based generators from LO to NLO and the need to store various event properties, such as weights associated with scale, PDFs, and suggested shower starting scales, etc., changes in the current format are required. These talks provide an overview of the current proposals of LHEF in order to facilitate discussions among generator authors,as well as its usage with the LHC experiments.

14:00 → 14:10 Introduction and goals

Speaker: Sanjay Padhi (Univ. of California San Diego (US))

Slides lhefintro.pdf

14:10 → 14:55 Next Steps in Les Houches Event format (LHEF)

Speaker: Leif Lönnblad (Lund University (SE))

Slides CERN13a.pdf

14:55 → 15:25 Employing an extended LHE 2.0 format in MadGraph5_aMC@NLO

Speakers: Benjamin Fuks (Institut Pluridisciplinaire Hubert Curien (FR)), Rikkert Frederix (CERN)

Slides Frederix_Fuks.pdf

15:25 → 15:45 Discussions