| 1. |
- Flechl, Martin, et al.
(författare)
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Grid interoperability : joining grid information systems
- 2007
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Ingår i: Journal of Physics, Conference Series. - : IOP Publishing. - 1742-6588 .- 1742-6596. ; 119:6, s. 062030-
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Tidskriftsartikel (refereegranskat)abstract
- A grid is defined as being 'coordinated resource sharing and problem solving in dynamic, multi-institutional virtual organizations'. Over recent years a number of grid projects, many of which have a strong regional presence, have emerged to help coordinate institutions and enable grids. Today, we face a situation where a number of grid projects exist, most of which are using slightly different middleware. Grid interoperation is trying to bridge these differences and enable Virtual Organizations to access resources at the institutions independent of their grid project affiliation. Grid interoperation is usually a bilateral activity between two grid infrastructures. Recently within the Open Grid Forum, the Grid Interoperability Now (GIN) Community Group is trying to build upon these bilateral activities. The GIN group is a focal point where all the infrastructures can come together to share ideas and experiences on grid interoperation. It is hoped that each bilateral activity will bring us one step closer to the overall goal of a uniform grid landscape. A fundamental aspect of a grid is the information system, which is used to find available grid services. As different grids use different information systems, interoperation between these systems is crucial for grid interoperability. This paper describes the work carried out to overcome these differences between a number of grid projects and the experiences gained. It focuses on the different techniques used and highlights the important areas for future standardization.
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| 2. |
- Mohn, Bjarte, et al.
(författare)
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ATLAS discovery potential for the Charged Higgs Boson in H+ decays
- 2007
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Ingår i: CDS.
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Tidskriftsartikel (refereegranskat)abstract
- The \textsc{Atlas} discovery potential for the hadronic decay of a heavy charged Higgs boson, H , is presented. A new matched production algorithm for the processes ggtbH and gbtH is used allowing to span the investigated mass range from mHmt up to mHmt with a consistent treatment of the transition region. For the considered charged Higgs boson masses from 165 to 600 GeV, H is the most relevant decay channel together with Htb . Whereas the latter suffers from large irreducible backgrounds, the decay channel offers a decisively cleaner signature. This is the first \textsc{Atlas} Full Simulation study of the H channel. For the background, \textsc{Atlas} Fast Simulation is used for the investigation of a greater variety of channels than in previous studies, emphasizing the need for new selection cuts with additional discriminating power between signal and background. Such cuts are introduced and it is shown that current limits from direct charged Higgs boson searches can be substantially extended already with a few years of LHC data.
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