Search found 92 matches

by dukwon
Tue Dec 04, 2018 9:14 am
Forum: The Accelerator
Topic: LS2 and looking ahead to Run 3
Replies: 5
Views: 542

Re: LS2 and looking ahead to Run 3

First night of LS2, violent thunderstorm caused extensive power cuts. The fire brigade had a busy night.
by dukwon
Mon Dec 03, 2018 6:53 am
Forum: The Accelerator
Topic: LS2 and looking ahead to Run 3
Replies: 5
Views: 542

Re: LS2 and looking ahead to Run 3

Screenshot from 2018-12-03 07-52-39.png
Screenshot from 2018-12-03 07-52-39.png (2.84 KiB) Viewed 72 times
by dukwon
Mon Dec 03, 2018 6:06 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11068

Re: 2018 Operation

Screenshot from 2018-12-03 07-05-49.png
by dukwon
Sun Dec 02, 2018 4:12 pm
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11068

Re: 2018 Operation

That's it. With the beam dump just now, we are done with Stable Beams for Run 2. Now we have some MDs overnight and Run 2 will be completely over at 6am.
by dukwon
Fri Nov 30, 2018 7:57 pm
Forum: Off topic
Topic: you know the RHIC
Replies: 2
Views: 51

Re: you know the RHIC

I believe the absolute maximum beam energy is 255 Z GeV where Z is charge of the ion (atomic number for fully ionised nuclei). "Full energy" is 100 GeV per nucleon, but bear in mind Z/A < 1/2 for almost all nuclides.
by dukwon
Mon Oct 29, 2018 9:12 am
Forum: New Users Start Here
Topic: hello to all
Replies: 0
Views: 111

Re: hello to all

Welcome!
by dukwon
Thu Oct 25, 2018 2:38 pm
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11068

Re: 2018 Operation

For Run1+Run2

187 /fb for ATLAS
192 /fb for CMS
10 /fb for LHCb

The page shows a buggy number for ALICE unfortunately

https://acc-stats.web.cern.ch/acc-stats ... view-panel

(remember to filter by proton-proton and stable beams)
by dukwon
Wed Oct 03, 2018 2:40 pm
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11068

Re: 2018 Operation

Run 2 delivered luminosity so far:

ATLAS: 150.29 fb^-1
ALICE: 60.96 pb^-1
CMS: 154.26 fb^-1
LHCb: 6.38 fb^-1
by dukwon
Wed Sep 19, 2018 10:30 am
Forum: Science
Topic: Review of Lepton Flavour Universality tests in B decays
Replies: 0
Views: 2171

Review of Lepton Flavour Universality tests in B decays

Nice comprehensive summary of all of the LFU tests in B decays:

https://arxiv.org/abs/1809.06229
by dukwon
Mon Sep 10, 2018 6:41 am
Forum: The Accelerator
Topic: Tenth anniversary of first beams in the LHC
Replies: 1
Views: 270

Tenth anniversary of first beams in the LHC

Here's the press release from 2008: https://press.cern/press-releases/2008/09/first-beam-lhc-accelerating-science CERN update from today: https://home.cern/about/updates/2018/09/large-hadron-collider-10-years-and-counting Blog post: https://cosmicshambles.com/words/blogs/jonbutterworth/big-bang-day-...
by dukwon
Fri Sep 07, 2018 9:06 am
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11068

Re: 2018 Operation

Delivered lumi so far this year:

50.0 /fb to ATLAS
51.9 /fb to CMS
1.9 /fb to LHCb
18.2 /pb to ALICE
Lumi2018-model.png
by dukwon
Sun Aug 05, 2018 2:53 pm
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11068

Re: 2018 Operation

Level 3 evacuation alarm in all sectors due to high temperature during this fill. Fire brigade says no action required.

I guess you can't escape the heat 100 metres below the surface
by dukwon
Tue Jul 10, 2018 12:29 pm
Forum: The Accelerator
Topic: 2018 Operation
Replies: 78
Views: 11068

Re: 2018 Operation

The high β* run dragged on a bit too long. LHCb is back to the nominal prediction line.