Monte-Carlo Production

To provide physicists with an idea of what the detector is likely to produce when operational there exists a massive Monte-Carlo production effort within CMS. This involves several steps which pass generated physical processes through a simulation of the detector and allows physicists to see what new physics would look like when seen by the detector and hence where to concentrate their searches.

Many people located at many sites have contributed to this effort which has produced millions of sample events totalling hundreds of Terabytes of data. Imperial has been responsible for a significant fraction of this effort both through use of dedicated local computing farms and the LCG Grid.

Imperial is also one of a smaller number of sites that host this data and allow analysis of it to be carried out. We have set up PhEDEx to transfer data and PubDB to publish data. Those datasets we have hosted in dCache can be found on our PubDB website.

The CMS MC production system is currently being re-engineered so that it is ready for the increased production rate required when CMS starts taking data. When the new version enters service Imperial plans to contribute both significant computing resources and manpower.



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