LHC Hits an Energy of 3.5TeV

Inovaovao writes "As announced on Twitter by the CMS experiment, the LHC has finally accelerated both beams to 3.5 TeV for the first time. It thus broke the previous energy record of 1.18 TeV it had set last fall, about a month since operations started again this year. It'll be a while yet before we see stable beams and collisions at 3.5 TeV. You won't get much of a clue to the timetable by reading the General Manager's pompous announcements. If you want to follow what's going on, look at the Status Ops."

Not pompous,

[Anonymous Coward]

It's pretty outrageous calling the Director General's web update pompous. Someone clearly has an axe to grind. His web page seemed like quite a reasonable summary for the time it was posted. Part of his job is to promote the value of the billions of Euros being spent on CERN.

Kdawson is the problem

[hexghost]

What I want to know is - when will kdawson not be such a tool?

Press release vs Status Ops

[OzPeter]

The Press Release tells me what they have achieved in terms of goals, and what goals they hope to achieve over the next year or so. On the other hand the all Status Ops tell me is whether or not the LHC was plugged in over the last 12 hours. Both datasets have their place and both tell me something that the other doesn't or can't.

Re:The press release is one week old

[ceoyoyo]

The release wasn't pompous anyway. It was clear, outlined what their goals are and put their (nearly) current status in perspective.

Doesn't Slashdot have editors to turn crappy submissions into reasonable summaries?

All right, I just exceeded my sarcasm quota for the day in a single statement.

Who cares?

[Schickeneder]

I don't mean to offend anyone, but why is this even such a big deal? Sure it's a new record, but why is it posted seemingly every week. Tomorrow we can expect another headline reading 3.6TeV.

Didn't they design this thing to run at much higher energy levels anyway?

Perhaps considering the frequency of problems they have been experiencing, the merit here is that it is, for the time being, running without something else exploding, leaking or burning up.

I'm more interested in the actual results of experiments when they finally get around to doing them.

Re:Who cares?

[Steve Max]

Actually, this goes in steps. They went from ~1.18TeV (which was already the highest energy for a proton beam ever achieved in lab) to 3.5TeV. The experiments will run at 3.5TeV for some time, then another shutdown to get them to the design energy of 7TeV per beam (14 TeV per collision). All is happening as planned.

The "problems" you mention happened with every single collider, ever. When you get to a new scale, you expect things to happen differently from your original idea; so you plan to allow time to solve problems. The accelerator itself is an experiment, and one that is going very well.

You want hard results? ALICE [aliceinfo.cern.ch] published a science paper [arxiv.org] on collisions almost four months ago. You can see more from ALICE [stanford.edu], ATLAS [stanford.edu], CMS [stanford.edu] and LHCb [stanford.edu]. Lots of simulations, descriptions and detection methods, but at least the two "smaller" groups (LHCb and ALICE) have measurements already, at one sixth of the energy they were designed to work on. In fact, LHCb will only have actual b hadrons to see when they start colliding protons at 3.5TeV; but they still could find a meaningful result to publish, sooner than anticipated by anyone with even passing understanding of collider physics. Is that enough? Or do people actually believe things go like this [xkcd.com]?

pompous?

[vaderj]

I would say the guy in charge of the largest and most expensive machine in the known universe has a right to be a little pompous