Search found 168 matches

by mfb
Sun Mar 12, 2017 10:35 pm
Forum: The Accelerator
Topic: The Large Hadron Collider Just Got a Crucial Upgrade
Replies: 9
Views: 2857

Re: The Large Hadron Collider Just Got a Crucial Upgrade

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?
by mfb
Sat Mar 11, 2017 6:30 pm
Forum: The Accelerator
Topic: 2017 Operation
Replies: 72
Views: 22006

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.
by mfb
Sat Mar 11, 2017 6:22 pm
Forum: The Accelerator
Topic: Mmm how to put this...?
Replies: 2
Views: 1741

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.
by mfb
Sat Mar 11, 2017 6:20 pm
Forum: The Accelerator
Topic: The Large Hadron Collider Just Got a Crucial Upgrade
Replies: 9
Views: 2857

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...
by mfb
Tue Jan 31, 2017 10:45 pm
Forum: Science
Topic: Precision electroweak physics by ATLAS
Replies: 6
Views: 2042

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,...
by mfb
Sat Jan 28, 2017 7:13 pm
Forum: Science
Topic: Precision electroweak physics by ATLAS
Replies: 6
Views: 2042

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.
by mfb
Fri Jan 27, 2017 9:28 pm
Forum: Science
Topic: Precision electroweak physics by ATLAS
Replies: 6
Views: 2042

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...
by mfb
Tue Jan 03, 2017 4:00 pm
Forum: Science
Topic: TED - How we explore unanswered questions in physics
Replies: 6
Views: 2988

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"
by mfb
Mon Jan 02, 2017 10:43 pm
Forum: Science
Topic: TED - How we explore unanswered questions in physics
Replies: 6
Views: 2988

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...
by mfb
Mon Jan 02, 2017 8:38 pm
Forum: Science
Topic: Work at CERN but what to do?
Replies: 3
Views: 1684

Re: Work at CERN but what to do?

What do I have to do?
Learn actual science.

CERN and NASA don't hire crackpots. Same for every other reputable institute.
by mfb
Fri Dec 16, 2016 12:52 am
Forum: Science
Topic: LHC's Newest Data: A Victory For The Standard Model, Defeat…
Replies: 20
Views: 4165

Re: LHC's Newest Data: A Victory For The Standard Model, Def

Look at your list, aside from the Higgs you hardly found anything.
Or you just don't see the importance of the discoveries.

The funding agencies see their importance and give money for the HL-LHC upgrade.
by mfb
Tue Dec 13, 2016 11:31 pm
Forum: Science
Topic: LHC's Newest Data: A Victory For The Standard Model, Defeat…
Replies: 20
Views: 4165

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...
by mfb
Sun Dec 11, 2016 5:16 pm
Forum: Science
Topic: LHC's Newest Data: A Victory For The Standard Model, Defeat…
Replies: 20
Views: 4165

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 ...
by mfb
Sun Dec 11, 2016 1:48 pm
Forum: Science
Topic: LHC's Newest Data: A Victory For The Standard Model, Defeat…
Replies: 20
Views: 4165

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...
by mfb
Sat Dec 10, 2016 9:35 pm
Forum: Science
Topic: LHC's Newest Data: A Victory For The Standard Model, Defeat…
Replies: 20
Views: 4165

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...