If New York gets a new major, do you write "the US got a new president"?
And do you claim people would be nitpicking if someone corrects you?
Search found 168 matches
- Sun Mar 12, 2017 10:35 pm
- Forum: The Accelerator
- Topic: The Large Hadron Collider Just Got a Crucial Upgrade
- Replies: 9
- Views: 18427
- Sat Mar 11, 2017 6:30 pm
- Forum: The Accelerator
- Topic: 2017 Operation
- Replies: 72
- Views: 168438
Re: 2017 Operation
Here is the schedule
Machine checkout starting April 26, commissioning with beam starting May 1. Scrubbing in early June if necessary, with first stable beams currently expected for June 12. Only 3 MD and TS blocks until the end of the year.
Machine checkout starting April 26, commissioning with beam starting May 1. Scrubbing in early June if necessary, with first stable beams currently expected for June 12. Only 3 MD and TS blocks until the end of the year.
- Sat Mar 11, 2017 6:22 pm
- Forum: The Accelerator
- Topic: Mmm how to put this...?
- Replies: 2
- Views: 10893
Re: Mmm how to put this...?
High temperature of what?
You cannot create a macroscopic amount of matter hot enough to simulate the conditions in the early universe. High-energy collisions are the only option. In those collisions you have the conditions similar to the early universe.
You cannot create a macroscopic amount of matter hot enough to simulate the conditions in the early universe. High-energy collisions are the only option. In those collisions you have the conditions similar to the early universe.
- Sat Mar 11, 2017 6:20 pm
- Forum: The Accelerator
- Topic: The Large Hadron Collider Just Got a Crucial Upgrade
- Replies: 9
- Views: 18427
Re: The Large Hadron Collider Just Got a Crucial Upgrade
This is not the Large Hadron Collider. It is the CMS experiment, which got a new pixel tracker. Describing it as first major upgrade is misleading. ATLAS inserted a new pixel layer during the last long stop, for example, and all the experiments replaced various smaller components during that time. A...
- Tue Jan 31, 2017 10:45 pm
- Forum: Science
- Topic: Precision electroweak physics by ATLAS
- Replies: 6
- Views: 15021
Re: Precision electroweak physics by ATLAS
but on a scientific level it isn't teaching us anything significant Or you just don't understand the significance because you have no idea about particle physics (something you really like to demonstrate often). How can you expect to contribute to a scientific discussion that way? The measurements,...
- Sat Jan 28, 2017 7:13 pm
- Forum: Science
- Topic: Precision electroweak physics by ATLAS
- Replies: 6
- Views: 15021
Re: Precision electroweak physics by ATLAS
Can you just go somewhere else if you don't want to contribute anything?
Measuring the properties more precisely is harder than adding more transistors to a chip.
Measuring the properties more precisely is harder than adding more transistors to a chip.
- Fri Jan 27, 2017 9:28 pm
- Forum: Science
- Topic: Precision electroweak physics by ATLAS
- Replies: 6
- Views: 15021
Precision electroweak physics by ATLAS
Two nice recent measurements from ATLAS: W+, W-, Z cross sections (7 TeV) - with an uncertainty of just 0.6% and 0.3% for W and Z, respectively, and with many precise differential cross section values. The additional luminosity uncertainty of 1.9% is dominant, but not that relevant for the main resu...
- Tue Jan 03, 2017 4:00 pm
- Forum: Science
- Topic: TED - How we explore unanswered questions in physics
- Replies: 6
- Views: 17034
Re: TED - How we explore unanswered questions in physics
chelle: "he is dead"
experts: "uh, we are chatting with him right now"
chelle: "I can see clearly that he is dead from my 100 km of distance to the field"
experts: "uh, we are chatting with him right now"
chelle: "I can see clearly that he is dead from my 100 km of distance to the field"
- Mon Jan 02, 2017 10:43 pm
- Forum: Science
- Topic: TED - How we explore unanswered questions in physics
- Replies: 6
- Views: 17034
Re: TED - How we explore unanswered questions in physics
This is not "particles and cosmic rays". The introduction is about the attempts to unify quantum mechanics and general relativity, and the bump that appeared in 2015 could have been a graviton - a first experimental hint how to combine those two. That wouldn't have been just another particle, it wou...
- Mon Jan 02, 2017 8:38 pm
- Forum: Science
- Topic: Work at CERN but what to do?
- Replies: 3
- Views: 12620
Re: Work at CERN but what to do?
Learn actual science.What do I have to do?
CERN and NASA don't hire crackpots. Same for every other reputable institute.
- Fri Dec 16, 2016 12:52 am
- Forum: Science
- Topic: LHC's Newest Data: A Victory For The Standard Model, Defeat…
- Replies: 20
- Views: 32860
Re: LHC's Newest Data: A Victory For The Standard Model, Def
Or you just don't see the importance of the discoveries.Look at your list, aside from the Higgs you hardly found anything.
The funding agencies see their importance and give money for the HL-LHC upgrade.
- Tue Dec 13, 2016 11:31 pm
- Forum: Science
- Topic: LHC's Newest Data: A Victory For The Standard Model, Defeat…
- Replies: 20
- Views: 32860
Re: LHC's Newest Data: A Victory For The Standard Model, Def
Sure, colliders have been great … but like Ethan said they aren't going to reveal any new physics. And you know that because some magical fairy told you so? 2010: The proton ridge is discovered 2011: An early clear confirmation of quark-gluon plasma. 2011: Observation of χb (3P), a baryon that help...
- Sun Dec 11, 2016 5:16 pm
- Forum: Science
- Topic: LHC's Newest Data: A Victory For The Standard Model, Defeat…
- Replies: 20
- Views: 32860
Re: LHC's Newest Data: A Victory For The Standard Model, Def
Those are not details. but collidors aren't teaching us anything special Nothing apart from finding nearly every particle known today, and establishing all of particle physics and most of nuclear physics. Oh, and allowing cosmology models to work. With side-effects of new and better medical imaging ...
- Sun Dec 11, 2016 1:48 pm
- Forum: Science
- Topic: LHC's Newest Data: A Victory For The Standard Model, Defeat…
- Replies: 20
- Views: 32860
Re: LHC's Newest Data: A Victory For The Standard Model, Def
Well at some point (~now) you start ending up with something like the 3 body problem, where you can keep on collecting data but it is no longer adding very much That point won't be reached within the lifetime of the LHC. Higgs->muons is an example of a decay that will need nearly the full LHC datas...
- Sat Dec 10, 2016 9:35 pm
- Forum: Science
- Topic: LHC's Newest Data: A Victory For The Standard Model, Defeat…
- Replies: 20
- Views: 32860
Re: LHC's Newest Data: A Victory For The Standard Model, Def
Meteorologists measure daily rainfall and sunshine, which is similar to your daily 'measurements of particle properties', at the end of the day it are just fluctuations and variations of the same thing. No, not at all. A property like "the mass the top quark" is a universal constant of nature - the...