1st Mini-Workshop on "Theoretical advances in the Matrix Element Methods"

27 May 2013, 08:30 → 28 May 2013, 19:30 Europe/Brussels

CYCL.01 (Auditoire Charles de la Vallee Poussin) (Cyclotron)

Last 8 TeV run at the LHC has written a new page in the history of particle physics. This year data will be scrutinized is great detail and preparation will start for the next step beyond 10 TeV. In this context, more and more experimentalists as well as theorists, are getting interested in methods that maximize the information that we can gather from the LHC data. Multivariate analyses, boosted decision tree, Neural Networks are just a few of the currently widely employed techniques. The idea of this two-day meeting to gather the experts of the matrix element method (MEM) and focus on the latest developments/ideas/improvements and on its applications to LHC physics. Among the main topics: 1. Methods: w/ or wo/ transfer functions, momenta reshuffling, shower deconstruction. 2. Going higher orders : using merged samples, extension to NLO. 3. New aims: from measurements to event selection, to BSM searches,... Participation: By invitation only. Organizers: John Campbell, Fabio Maltoni, Tilman Plehn

Monday, 27 May

08:30 → 09:00 Registration

09:00 → 09:10 Welcome

Speaker: Prof. Fabio Maltoni (UCL)

09:15 → 09:45 The wisdom of the matrix element methods

Speaker: Florencia Canelli (University of Zurich)

Slides MEM-canelli.pdf

10:00 → 10:30 Coffee break

10:30 → 11:00 The statistical fundaments of the MEM and maximum significance

Speaker: Kyle Cranmer (NYU)

Slides Matrix-Element-Method-2013.pdf

11:30 → 12:00 Experimental aspects of the MEM using the example of mtop

Speaker: Dr Oleg Brandt (University of Goettingen)

Slides 2013_05_28_MEMWS_ExpAspME_OlegBRANDT.pdf

12:30 → 14:30 Lunch

14:30 → 15:00 MadWeight and application to tth

Speaker: Mr Pierre Artoisenet (Nikhef)

Slides MadWeight_Artoisenet.pdf

15:15 → 15:45 VBF with higgs in gamma gamma

Speaker: Englert Christoph (IPPP)

Slides Louvain_2013.pdf

16:00 → 16:30 Cofee Break

16:30 → 17:00 Higgs characterization with the MEM

Speaker: Myeonghun Park (CERN)

Slides PARK_MEM.pdf

17:30 → 18:30 Discussion

Speaker: Tilman Plehn (Heidelberg)

19:30 → 21:20 Dinner

Dinner at MadZebu restaurant in LLN

Tuesday, 28 May

09:00 → 09:30 Effective treatment of extra radiation at LO MEM

Speaker: Mr Olivier Mattelaer (CP3)

Slides 13_05_28_MW5_LLN.pdf

09:30 → 10:00 MEM at NLO

Speaker: Ciaran Williams (FNAL)

Slides MEMwork.pdf

10:00 → 10:30 Discussion

Speaker: Mr Pierre Artoisenet (Nikhef)

10:30 → 11:00 Coffee Break

11:00 → 11:30 Stop searches

Speaker: Dr Petra Van Mulders (Vrije Universiteit Brussel)

Slides MEM_forStop_Petra.pdf

11:45 → 12:00 Differential MEM

Speaker: Mr Arnaud Pin (CP3)

Slides DMEM_W.pdf

12:00 → 12:15 Higgs characterization

Speaker: Alexandre Mertens (CP3)

Slides Higgs_Parity.pdf

12:30 → 14:30 Lunch

14:30 → 14:45 Event selection with via the MEM : b charge identification in ttbar events

Speaker: Dr Michele Selvaggi (UCL)

Slides CP.pdf

14:45 → 15:15 Studies with the MEM

Speaker: Suzan Basegmez (UCL)

Slides MEM__workshop_suzan.pdf

15:15 → 16:00 Discussion on the statistics

Speaker: Prof. Jorgen D'Hondt (Vrije Universiteit Brussel)

Slides MEM-statistics-May2013.pptx

16:00 → 16:30 Coffee Break

16:30 → 17:00 Deconstruction in boosted objects

Speaker: Michael Spannowsky (IPPP)

Slides ShowerDec_Spannowsky.pdf

17:00 → 17:30 Farewell