The Large Hadron Collider has today reached new record luminosities of about 2.8 Megahertz per barn using 25 bunches per beam. Each experiment now sees 16 collisions per turn which is twice the number in the previous scheme that used 13 bunches per beam. With some tuning slightly higher luminosities will be possible.
The current plan confirmed by Steve Meyers at ICHEP is to run with this scheme constantly during August. This will give the collider control teams the opportunity to perfect their operations and improve stability so that they can get the maximum amount of stable beam time.
It should now be possible to sustain average luminosities of about 2 MegaHertz per barn with this scheme. If they can produce enough hours of stable beam per day during August the experiments could collect about ten times the integrated luminosity seen so far. From results presented at ICHEP – especially the dijet and dimuon observations – there is some hope that new physics at above 1 TeV could already become evident with such a data sample.
After August they will once again start to step up the number of bunches ready to collect the much higher target of 1 inverse femtobarns by the end of 2011.