Search found 42 matches

by JNW
Sat Jan 09, 2010 4:37 pm
Forum: Science
Topic: Magnetic monopoles found?
Replies: 37
Views: 12416

Re: Magnetic monopoles found?

JNW, would you like to provide legitimate references? You do know we have detectors in space recording cosmic rays and ultra-high energy photons directly? Yes, I know about space detectors, and high altitude balloon detectors. These detectors don't have a very large collecting area. Cosmic rays of ...
by JNW
Sat Jan 09, 2010 3:53 am
Forum: Science
Topic: Magnetic monopoles found?
Replies: 37
Views: 12416

Re: Magnetic monopoles found?

It takes a cosmic ray proton traveling at 10^17 eV and hitting a stationary proton to have the same CM energy as the LHC has with colliding protons. This makes no sense. The LHC's center-of-mass proton+proton collision energy is 1.4 x 10^13 eV. The 10^17 eV is from a CERN safety report: http://cern...
by JNW
Thu Jan 07, 2010 11:24 pm
Forum: Science
Topic: Magnetic monopoles found?
Replies: 37
Views: 12416

Re: Magnetic monopoles found?

The cosmic rays do exactly the same type of stuff what the LHC does. I'm not so sure. It takes a cosmic ray proton traveling at 10^17 eV and hitting a stationary proton to have the same CM energy as the LHC has with colliding protons. We know that many low energy cosmic rays are protons, but what d...
by JNW
Wed Jan 06, 2010 3:17 am
Forum: The Accelerator
Topic: Post shutdown things to do
Replies: 13
Views: 3819

Re: What is the emergency shut off for the CERN LHC?

If something goes 'amiss' or terribly unforeseen how do they turn it off, The LHC will shut down automatically if any problem is detected. It can also be shut down manually, of course. you have 15 minutes to reach a safe distance warning, what is their strategy? Everyone is already a safe distance ...
by JNW
Wed Jan 06, 2010 3:04 am
Forum: Off topic
Topic: Happy Holidays!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Replies: 46
Views: 31072

Re: Happy Holidays!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

That's a great limerick, but I'm having a little trouble with the line:

"is not to make them flatter".

It seems smoother if I say:

"is not making them flatter".
by JNW
Mon Jan 04, 2010 5:33 pm
Forum: Science
Topic: Magnetic monopoles found?
Replies: 37
Views: 12416

Re: Magnetic monopoles found?

In the LSAG they say a light proton eating monopole will eat 10^18 before exiting the earth, but what happens after that? Only the ultra-heavy GUT monopoles can eat protons. The light monopoles that the LHC might produce never eat protons. The only problem monopoles might cause is if the LHC produc...
by JNW
Mon Jan 04, 2010 4:59 pm
Forum: Controversial topics
Topic: Several biggest errors of particle physicists.
Replies: 1135
Views: 323230

Re: Several biggest errors of particle physicists.

... magnetic hole can be created at the p-p collisions with 0.25 TeV per proton. ... Do you want to test these conclusions on LHC? Relax, the LHC will never reach 0.25 TeV per proton. It can only do from 0.45 TeV to 7.0 TeV per proton. 0.25 TeV is well outside that range. So we are safe! :happy-jum...
by JNW
Sat Jan 02, 2010 5:47 pm
Forum: Controversial topics
Topic: Several biggest errors of particle physicists.
Replies: 1135
Views: 323230

Re: Several biggest errors of particle physicists.

Created magnetic hole captures protons; destroy them onto positron and x-boson (or onto μ+ and x-boson, or onto pi+ and x-boson); ejects positron (or μ+, or pi+) and captures x-boson and grow. http://www.darkenergy.narod.ru/mh5.gif First, treating a proton as an elementary particle is a low energy ...
by JNW
Mon Dec 28, 2009 8:58 pm
Forum: New Users Start Here
Topic: Shut down
Replies: 11
Views: 2945

Re: Shut down

They're doing a lot of things that are best done with the LHC shut down, but the main thing seems to be qualifying the new quench protection systems for 3.5TeV/beam operation.
by JNW
Sat Dec 12, 2009 10:26 pm
Forum: End Of The World
Topic: Mini Black Holes
Replies: 30
Views: 11809

Re: Mini Black Holes

If mini black holes could exist, then virtual black holes would mediate proton decay. Proton decay has never been observed, and the lower bound on its rate means that there are no black holes below 10^16 GeV. That's around 12 orders of magnitude higher than the LHC can reach. So the LHC has no chanc...
by JNW
Mon Dec 07, 2009 8:16 pm
Forum: The Accelerator
Topic: Weekend of 12-3-09 collision events !
Replies: 188
Views: 32518

Re: Weekend collision events !

From page 1:

Cryo conditions OK now
preparing for powering
by JNW
Mon Dec 07, 2009 4:46 am
Forum: The Accelerator
Topic: Weekend of 12-3-09 collision events !
Replies: 188
Views: 32518

Re: *** COLLISION ALERT ***

I notice on the LHC cryo page that the DFB45 temp is over 14 and rising fast. I guess the cryo for that is off right now.

Edit: That temp is now 17 and falling. It looks like they've fixed it.