Search found 42 matches
- Thu Mar 01, 2012 3:19 am
- Forum: The Accelerator
- Topic: 2012 Events Discussion
- Replies: 100
- Views: 218127
Re: 2012 Events Discussion
I just looked at the cryo page, and at the moment it's all green.
- Wed Jan 18, 2012 7:18 pm
- Forum: The Accelerator
- Topic: 2011 Events Discussion
- Replies: 184
- Views: 259307
Re: 2011 Events Discussion
I see from the Cryo status page that they've started cooling the arc magnets.
However, the lhcportal Progress link still points to last year's "latest news". Is there something like that for this year?
However, the lhcportal Progress link still points to last year's "latest news". Is there something like that for this year?
- Tue Oct 18, 2011 1:55 pm
- Forum: Science
- Topic: Neutrinos go faster then light !
- Replies: 109
- Views: 213971
Re: Neutrinos go faster then light !
Tomaso Dorigo says that ICARUS says nah to Superluminal neutrinos. http://www.science20.com/quantum_diaries_survivor/icarus_refutes_operas_superluminal_neutrinos-83684 They're assuming that the neutrinos are traveling as normal neutrinos, which would quickly lose energy from emitting the weak force...
- Mon Oct 17, 2011 3:27 pm
- Forum: The Accelerator
- Topic: 2011 Events Discussion
- Replies: 184
- Views: 259307
Re: 2011 Events Discussion
ATLAS and CMS are both over 5fb-1 now.Harbles wrote:Now just a fill or two away from crossing 4fb-1.
http://lpc.web.cern.ch/lpc/lumiplots.htm
- Tue Aug 23, 2011 6:34 pm
- Forum: Science
- Topic: About Higgs - Seems that the signal is fainting
- Replies: 1
- Views: 5486
Re: About Higgs - Seems that the signal is fainting
Whether this is good or bad depends on your point of view. The Higgs is the most boring way to plug a hole in the Standard Model. If there's no Higgs, then there must be something much more interesting out there, waiting to be found.
- Thu May 05, 2011 3:01 am
- Forum: Controversial topics
- Topic: Frequencies and Densities
- Replies: 17
- Views: 35404
Re: Vacuum Bubbles
The size of a proton is 0.1 nm (10^-10) That's atomic size. The size of a proton is around 10^-15 m. Next to that the LHC detectors might produce 10^34 collisions per second and per cm^2. ( source ) That's not the number of collisions. That's what you multiply by the extremely small cross section t...
- Thu Feb 17, 2011 2:02 am
- Forum: Portal link and forum suggestions
- Topic: Is there a 2011 schedule to point to?
- Replies: 1
- Views: 6411
Re: Is there a 2011 schedule to point to?
Do you mean something like: https://espace.cern.ch/be-dep/BEDepartm ... e_v1.2.pdf
?
?
- Sat Feb 12, 2011 5:29 pm
- Forum: The Accelerator
- Topic: 2011 Events Discussion
- Replies: 184
- Views: 259307
Re: 2011 Events Discussion
The portal's LHC "Progress" link needs to be updated. The new link is:
http://lhc-commissioning.web.cern.ch/lh ... -news.html
http://lhc-commissioning.web.cern.ch/lh ... -news.html
- Sat Dec 25, 2010 3:58 am
- Forum: The Accelerator
- Topic: Merit of different collision types
- Replies: 3
- Views: 8436
Re: Merit of different collision types
Is it possible that collisions between two very elementary particle such a the electron and positron, would be too "simple" and would not yeld any interresting (new) particles such as the (in-) famous Higgs? When an electron and positron annihilate, they can produce a virtual photon or virtual Z0 (...
- Mon Dec 20, 2010 12:26 am
- Forum: The Accelerator
- Topic: Merit of different collision types
- Replies: 3
- Views: 8436
Re: Merit of different collision types
Actually, LEP also used electron-positron collisions. With electron-positron collisions the particles annihilate and nearly all the energy is available for the collision products. Also, the amount of energy is fairly consistent and known. And there is no special requirement imposed on the products, ...
- Tue Sep 21, 2010 2:15 am
- Forum: The Accelerator
- Topic: Portal updates.
- Replies: 4
- Views: 8626
Re: Portal updates.
Some of the portal links are being redirected. For instance:Xymox wrote:Anything you can think of that needs addressing. ...
In the ATLAS section the "LIVE collisions" link.
In the LHCb section the "Status" link.
- Fri Apr 23, 2010 3:37 am
- Forum: The Accelerator
- Topic: Current Events Discussion
- Replies: 512
- Views: 613108
Re: Current Events Discussion
how much of the beam comissioning they are doing now will need to be repeated when they run at 7Tev? They will have a much better understanding of the machine by the time they go to 7TeV. And many of the problems that they've solved will stay solved. So re-commissioning at 7TeV should go significan...
- Thu Apr 22, 2010 12:57 am
- Forum: The GRID
- Topic: Question about LHC Home site, BOINC download link broken
- Replies: 16
- Views: 43868
Re: Question about LHC Home site, BOINC download link broken
The main BOINC site is: http://boinc.berkeley.edu/rhody wrote: I googled for BOINC, and got many hits, but need a good reliable site for the BOINC Client.
- Sat Apr 03, 2010 4:22 am
- Forum: Science
- Topic: Let's go hump hunting!
- Replies: 86
- Views: 117040
Re: Let's go hump hunting!
Electrical interference can be caused by an alternative ground path. Here's an example. Assume we're in the US where many electrical outlets have a 120VAC hot wire and the return is near ground potential. If you plug in an appliance that draws current, then the current in the hot wire and the curren...
- Thu Apr 01, 2010 2:22 am
- Forum: The Accelerator
- Topic: Current Events Discussion
- Replies: 512
- Views: 613108
Re: Current Events Discussion
The beams are still going, and with good lifetimes, too!
And LHCb just had a bizarre event: http://lblogbook.cern.ch/Shift/100401_0 ... 4210_0.jpg
And LHCb just had a bizarre event: http://lblogbook.cern.ch/Shift/100401_0 ... 4210_0.jpg