Physics at TeV colliders, tools and the dark matter connection
The emergence of these new paradigms means it is of utmost importance to update and renew our approach to searches of the Higgs and the NP at the LHC, get acquainted with the new models and be equipped with the tools and software to conduct future analyses to dig out the new signals. At the same time, it is important to be in control of all the predictions of our current theory. This calls for the development of sophisticated SM codes. Our proposal consists of a series of four events, starting in June 2007 and covering the first years of the LHC runs. We propose an original approach to training that involves both critical reviews of new concepts and participation in the improvement of the codes, in data simulations and analyses.
Two of the Training Courses will bring together theorists and experimentalists working on SM and New Physics issues in a secluded location over a period of three weeks. A series of lectures will alternate with small group meetings and discussions with ample time to carrying specific projects. The other two meetings will focus on a review of tools where emphasis will be put on the New Physics tools in order to attract also the astroparticle physics community.
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
Rue Michel-Ange, 3
Genevieve BELANGER (Ms)
MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V.
UNIVERSITY OF SOUTHAMPTON
Grant agreement ID: 46171
1 January 2007
31 December 2010
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
Final Activity Report Summary - PHYSTEV (Physics at TeV colliders, tools and the dark matter connection)
Another major objective of the LHC was the production of a new dark matter particle. Indeed recent cosmological measurements show evidence that most of the matter in the Universe is dark. This dark matter cannot be composed of the particles we know now. Both the symmetry breaking and dark matter problems point towards extensions of the standard model featuring a rich phenomenology such as supersymmetry or extra dimensions. The aim of the PHYSTEV project was to prepare young researchers for analyses of the LHC results. In particular to renew our approach to searches for the Higgs and the new physics at the LHC, get acquainted with the new theoretical models and be equipped with all the tools and software to conduct analyses to extract the new signals.
To unravel any signature from beyond the standard model it is important to control all the predictions of the current theory. This calls for the development of sophisticated standard model codes, in particular those dealing with multiparticle final states. Combining new ideas for performing these calculations based on some very formal theoretical construct borrowed from string theory and twistor space with the improved standard techniques will allow constructing new powerful Monte Carlo generators. To maximise the physics output of the LHC one needs to provide the most efficient tools and software both for the standard model calculations and the new physics predictions. This requires gathering theorists with the experimentalists, especially young physicists, who will be exploiting these tools.
The training aspect of the project was truly original. The driver events, held in the first and third year, were the culminating point of what should be considered as a continuous collaborative and training process over the duration of the project. These events were forums that brought together physicists in a secluded location over a period of three weeks. A series of lectures alternate with small group meetings and discussions with ample time to carrying specific projects. Intergroup and larger group meetings were set-up as the need arises. The driver events meetings involved both theorists and experimentalists working on standard model as well as on extensions of the standard model.
Although one of the ultimate aims of the project was to furnish computer tools to be used for physics analyses at the LHC, the emphasis was also on the physics analyses and the confrontation of new ideas. The other two events took place at one-year interval form the driver events. They were comparatively smaller in both duration and scope but with a more focused aim. They were dedicated to a review of tools, monitoring the progress made since the driver events and giving new directions both for theory and the experimentalists needs. Some emphasis was put on the 'new physics' tools including those dealing with dark matter to make a connection with the astrophysics community. Altogether the events gather over 350 physicists, roughly half of them young researchers. Furthermore the project events attracted several internationally known senior participants and keynote speakers as well as senior representative of the major ongoing experiments at Tevatron and at the LHC. One of the measures of the success of the project is the impact the workshops had on preparing for physics analyses at the LHC. One of the main achievements in this respect was the new proposals for 'les houches accords' that aim at standardising the interface between different computer codes.
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