Not all of these projects are terribly interesting (that's why it counts as service work), but even the most boring ones offer a good opportunity for a newcomer to learn about D0 software and triggers and to achieve results fast. So if you are looking for a project that you can complete for your first year report, you have come to the right place. There are also a number of projects which require an experienced person (L3 code has to fast and robust and some details of it are rather gory), so if you think you are up to the challenge (unlike reco, everything Level 3 does is final -- reprocessing is for wusses), -- we've got the projects for you as well. Most Level 3 tools, even if unchanged require to be re-certified for each new release that goes online (typically once a year), so we encourage people (or institutions) to take long term responsibilities for a part of the Level 3 software. That does not mean you have to sign up for life when you decide to work on Level 3, but it requires that you document and communicate any changes you make/problems you discover etc to the rest of the group.

Here is a very brief summary of some of the opportunities for new people to get involved in level 3 filtering work:

• Level 3 infrastructure (to replace Jon Hays, experienced person only)
  * L2ORing/splitting
  * l3fserver rewrite
  * Online cpu monitoring
  
• Isolation tool (some experience with D0 software, but not necessary triggers required)
  * new infrastructure, current version does not provide functionality physics groups need and will not be able to run much beyond 100e30.
  * certification (incl. TMB)
  
• L3 results in the TMB. The first implementation of the L3 results in the TMB was less than ideal and will need some revision. This project is ideal for beginners as it requires mostly diligence rather than experience and offers an opportunity to learn about Level3 filters as a whole.
• Muons. Level 3 muon is currently in a holding pattern. While the tools runs, there is room for improvement, especially for high pT muons. No experience necessary, but will require at least 6 months of commitment.
• Jets: L1 cal confirmation, Electron removal, JES studies. Help out Camille ! No experience necessary as long as you are willing to listen to Camille.
• BID/Vertexing: Commission a number of new tools. Ideal for newcomers. Work with Imperial College group. Short term projects possible.