Gruffalo has woken up? What that means? Anyone knows?
Thanks
fernando
Search found 14 matches
- Wed Nov 15, 2017 1:12 am
- Forum: The Accelerator
- Topic: 2017 Operation
- Replies: 72
- Views: 171985
- Wed Dec 07, 2011 12:39 am
- Forum: The Accelerator
- Topic: 2011 Events Discussion
- Replies: 184
- Views: 259309
Re: 2011 Events Discussion
Hello. What was the luminosity target for 2011 ion run?
Thanks
fernando
Thanks
fernando
- Sat Sep 17, 2011 5:40 pm
- Forum: The Accelerator
- Topic: Tine and Losses Panel in vistars
- Replies: 5
- Views: 10647
Re: Tine and Losses Panel in vistars
The following is just my understanding of what you ask, someone please correct me if I am totally off-track. You can find excellent description of the tune here among other beam parameters. Vertical position of the tune dot represents measured vertical tune and horizontal position of the dot the ho...
- Mon Sep 12, 2011 5:36 pm
- Forum: The Accelerator
- Topic: Tine and Losses Panel in vistars
- Replies: 5
- Views: 10647
Tine and Losses Panel in vistars
Hello, looking at the vistars (meltronx.com) in one of the LHC dashboard panels you can see Tune and Losses. I tried but could not understood some of the panels, if someone is so kind to explain It will be very welcomed. http://lhclite.meltronx.com/dash.html How Tune is read? Why are there multiple ...
- Tue Aug 23, 2011 1:04 am
- Forum: Science
- Topic: About Higgs - Seems that the signal is fainting
- Replies: 1
- Views: 5486
- Tue Jun 28, 2011 1:10 pm
- Forum: The Accelerator
- Topic: Have two consecutive programmed fills ever been achieved?
- Replies: 9
- Views: 13236
Re: Have two consecutive programmed fills ever been achieved
Crossing fingers seems that fill #1900 and #1901 will do that. Fill #1900 ended up with Programmed Dump, and #1901 is on its way.
- Tue Jun 21, 2011 1:54 am
- Forum: The Accelerator
- Topic: Luminosity vs. number of collisions
- Replies: 4
- Views: 8388
Luminosity vs. number of collisions
Hi, I was wondering if there is any way of calculate number of collision per second for example based on luminosity. Is this possible?
I read somewhere that there are about 13 collisions per bunch, is this correct? Are there any LHC Vistar with this information?
Thanks very much.
Fernando
I read somewhere that there are about 13 collisions per bunch, is this correct? Are there any LHC Vistar with this information?
Thanks very much.
Fernando
- Thu Jun 09, 2011 1:37 am
- Forum: Science
- Topic: Proton mass increase
- Replies: 7
- Views: 17788
Re: Proton mass increase
Thanks very much for the detailed answer. Really appreciate it, it is a very interesting (and sometimes confusing) topic for me (no physics beyond high school). It is much clear now.
- Sat Jun 04, 2011 3:08 pm
- Forum: Science
- Topic: Proton mass increase
- Replies: 7
- Views: 17788
Re: Proton mass increase
Thanks very much Zaim. But regarding the last questions, do the size (diameter) increase with the relativistic mass increase?
Thanks!
Thanks!
- Sat Jun 04, 2011 3:29 am
- Forum: Science
- Topic: Proton mass increase
- Replies: 7
- Views: 17788
Proton mass increase
AFAIK when particles accelerate, their mass increase. Do you know how many times proton mass is increased at the LHC at 3.5 TeV? Do only the mass increase or also the size of the proton increase as well? If yes, does it means that at higher energies (7 TeV) collision ratio should increase by the siz...
- Fri Oct 08, 2010 2:25 am
- Forum: The Accelerator
- Topic: Current Events Discussion
- Replies: 512
- Views: 613116
Re: Current Events Discussion
Hi, why is Atlas BGND2 so big (it reads 1454 now) compared to CMS (1.710)? In wich unit is it meassured? And the difference between BGND #1, 2 and 3?
Thanks very much!
Regards;
Fernando
Thanks very much!
Regards;
Fernando
- Thu Sep 30, 2010 11:30 am
- Forum: The Accelerator
- Topic: Current Events Discussion
- Replies: 512
- Views: 613116
Re: Current Events Discussion
What does UFO #xx means? Seems it is causing beam dumps.
Thanks
Fernando.
Thanks
Fernando.
- Fri Jul 30, 2010 2:55 am
- Forum: The Accelerator
- Topic: Current Events Discussion
- Replies: 512
- Views: 613116
Re: Current Events Discussion
Hi, I see that about 20% of the beam is lost (It started at 2.5E12 and now it is ~2.0E12). Is this caused by collisions? Is it safe to loss this amount of particles?
Thanks
Fernando.
Thanks
Fernando.
- Mon May 10, 2010 2:48 am
- Forum: The Accelerator
- Topic: Current Events Discussion
- Replies: 512
- Views: 613116
Re: Current Events Discussion
Hi, where can you see the collision's rate and the number of collisions?
Thanks very much.
Thanks very much.