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March 8, 2004

High Bandwidth Real-time Remote Processing Systems and Grids for the ATLAS High Level Trigger

An international partnership and collaboration is underway between researchers and staff from CERN near Geneva, Switzerland, the Centre for Subatomic Research (CSR) at the University of Alberta in Edmonton, Canada, the Niels Bohr Institute (NBI) in Copenhagen, Denmark, and the Institute for Nuclear Physics (INP) in Cracow, Poland for the development of real-time processing systems for high bandwidth time-critical applications in experimental particle physics, in particular the real-time remote processing of data collected by the High Level Trigger of the ATLAS experiment at the CERN LHC (Large Hadron Collider).

The development of a remote trigger data collection system provides a significant advantage in that it is much easier to add additional computation and data acquisition resources at remote sites, thereby allowing for lower thresholds and higher data sampling rates at the LHC. This in turn has the potential to improve the scientific reach of the ATLAS experiment when searching for as of yet undiscovered particles and new physics beyond the Standard Model.

The participating sites will be connected through national and international research networks using end-to-end lightpaths initially at speeds of 1 Gigabit per second and then beyond to 10 Gigabits per second which will be needed to accommodate the high bandwidth real-time requirements of the experiment. A first version of the system will be deployed as part of the ATLAS Combined Test-beam at CERN during the summer of 2004.

See: csr.phys.ualberta.ca/atlas_hlt

Related Links:
Centre for Subatomic Research, University of Alberta, Edmonton, AB Canada
CERN
Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
Institute for Nuclear Physics, Cracow, Poland
The ATLAS Experiment at CERN
CANARIE
Netera Alliance
SURFnet
The GARDEN Project