Download over one million events

News from CERN
Week 7-11th of December
News from LHC : this week-end
• After only three weeks of running it almost felt like routine operation in the
CERN control centre and the experiments' control rooms this weekend:
– long periods of stable beams at 450 GeV,
– good beam lifetimes and
– beam intensities of up to 7 x 10^10 protons per beam meant that all experiments
took a very good set of data.
• Over the weekend ATLAS, ALICE, CMS, LHCb, TOTEM and LHCf recorded well
over one million events.
• The operators performed more tests at the higher energy of 1.18 TeV per beam
and the experiments saw about 50 000 collisions at 2.36 TeV.
• With only three days of operation to go before the end-of-the-year technical
stop, the experiments have many events to look at in the new year, and the LHC
operators have learnt a lot about their machine, which is running more
smoothly than anyone could have expected.
Rolf Heuer
With Particle Flow
http://indico.cern.ch/getFile.py/acce
ss?contribId=54&sessionId=87&resI
d=0&materialId=slides&confId=7321
2
physics
http://indico.cern.ch/conferenceDisplay.py?co
nfId=73212#2009-12-07
agenda