PROBE4TEVSCALE

Resolving short-distance physics mechanisms in hadron collisions at TeV-scale energies

Coordinatore	STICHTING VOOR FUNDAMENTEEL ONDERZOEK DER MATERIE - FOM    more  Organization address address: Van Vollenhovenlaan 659 city: UTRECHT postcode: 3527 JP contact info Titolo: Mr. Nome: Arjen Cognome: Van Rijn Email: send email Telefono: +31 20 592 5000 Fax: +31 20 592 5054
Nazionalità Coordinatore	Netherlands [NL]
Totale costo	191˙675 €
EC contributo	191˙675 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-2011-IEF
Funding Scheme	MC-IEF
Anno di inizio	2012
Periodo (anno-mese-giorno)	2012-04-01   -   2014-03-31

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	STICHTING VOOR FUNDAMENTEEL ONDERZOEK DER MATERIE - FOM  Organization address address: Van Vollenhovenlaan 659 city: UTRECHT postcode: 3527 JP contact info Titolo: Mr. Nome: Arjen Cognome: Van Rijn Email: send email Telefono: +31 20 592 5000 Fax: +31 20 592 5054	NL (UTRECHT)	coordinator	191˙675.40

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 Obiettivo del progetto (Objective)

'The Large Hadron Collider (LHC) at CERN offers a promising opportunity to discover and characterize a putative new physics sector at the TeV energy scale. Due to the complexity of the experimental signatures, the direct search for new particles at this huge experimental facility is a real challenge, requiring a very clear understanding of the structure of hadron collisions. For this reason, in the last decade a tremendous effort has been devoted to improving the accuracy of theoretical scattering amplitudes. Very recently, a new milestone has been reached with the elaboration of algorithms capable of generating hard scattering amplitudes at next-to-leading-order accuracy. In this context, it is urgent to redefine strategies for new physics searches at the LHC which makes maximum use of state-of-the-art theoretical information. In this project, we consider more specifically the case of decay chains, which plays a very important role in the search for new physics. As a first objective, we propose to use our expertise in Monte Carlo techniques, spin physics and next-to-leading-order calculations to develop a generic decay algorithm designed specifically to retain all spin correlation effects at next-to-leading order accuracy in any decay chain in the Standard Model and beyond, and to implement this algorithm in the MadGraph framework. Secondly, we propose to develop a matrix-element-based likelihood method dedicated to experimental analyses involving decay chains and constructed to maximize the use of spin correlation effects. Finally, we propose to revisit, with the aid of these tools, specific searches for new physics at the LHC -in particular the search for a light Standard Model Higgs- and to assess the increase of significance that is gained with a careful treatment of higher-order radiation and spin correlation effects.'