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ATLAS Blog
Its All About The Lumi!
– Now that the LHC has established colliding stable beams at a center of mass energy of 7 TeV, the next step to maximize its physics reach is to provide the most luminosity possible. As Leo posted, we need to increase the number of proton - proton collisions to make sure we have a chance of seeing the physics that we are looking for. The reason for that is because different p.hysics processes have different probabilities. These probabilities are referred to as cross-sections (in a vague reference to the particle's size). If one multiplies a cross section by a luminosity than what you get is a number of events.Read more →
Life Imitating Reality
– I was home sick today, probably from the stress of getting ready for "M-Day" (aka Media Day), more likely though I finally succumbed to the cold that had been spreading through the Control Room. As it so happened, my laptop had been in the shop because it experience an "incident" (actually I just dropped it) last Monday (the week before Media Day), and I just picked it up yesterday.Read more →
Increasing collision rate
– Many collisions will be needed to unveil the secrets eventually hidden at the 7 TeV energy regime.Read more →
Let The Physics Begin!
– After decades of planning. After years of delays and immeasureable amounts of patience and hard work. The physics operations of the LHC has begun!Read more →
First 7 Tev collisions have been recorded in ATLAS
– After ramping of the beams to 3.5 TeV and tuning, final checks, and some emotions due to an unforeseen beam dump, the 7 TeV collisions finally appeared on the on-line monitors of the ATLAS Control Room.Read more →
Expecting beam in 30 minutes!
– During this morning LHC has been working to give us the beam conditions for collisions.Read more →
How will it happen?
– So how will this whole "First 7 TeV Collisions" event happen? Well, here is my (somewhat naive) understanding of what will happen.Read more →
Approaching the End...and a New Beginning
– This Tuesday, if all goes according to plan, will mark the end of a very long journey for many High Energy Physicists. The first 7 TeV Collisions will signal the end of the the commissioning period of the LHC and its experiments.Read more →
Big step forward in LHC operation last night
– Last night a new very important milestone has been reached by the LHC: two counter-circulating proton beams have been accelerated for the first time to 3.5 TeV, the energy that they should routinely reach in the 2010-2011 running period.Read more →
3 Firsts for ATLAS in 2010
– It has been a BUSY weekend! The LHC has been working around the clock get the machine commissioned, and ATLAS has been enjoying the many Firsts that have resulted.Read more →
