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Andrew Craig-Bennett
12-22-2011, 06:37 PM
First new particle to be discovered by the Large Hadron Collider is a thing called a Chi_b (3P) which is a beauty quark and a beauty antiquark bound together.

http://www.bbc.co.uk/news/science-environment-16301908

skuthorp
12-22-2011, 08:52 PM
BY:D Bewdy!
Can we have one for Xmas?

Blowtorch
12-23-2011, 12:12 AM
BY:D Bewdy!
Can we have one for Xmas?Everything you Own already has Several.

purri
12-23-2011, 03:07 AM
First new particle to be discovered by the Large Hadron Collider is a thing called a Chi_b (3P) which is a beauty quark and a beauty antiquark bound together.

http://www.bbc.co.uk/news/science-environment-16301908
Sounds like a bitchslap session to me,

P.I. Stazzer-Newt
12-23-2011, 03:36 AM
Ach - it's a big place must be easy to mislay a little thing like that.


Glad they found it.

Mad Scientist
12-23-2011, 03:45 PM
Is anybody still trying to synthesize ultraheavy, stable elements? Something denser than lead or DU, and not radioactive - for ballast, of course!

Tom

JimD
12-23-2011, 03:55 PM
"People have thought this more excited state should exist for years

People, eh? Not dogs?

Andrew Craig-Bennett
12-23-2011, 03:57 PM
Is anybody still trying to synthesize ultraheavy, stable elements? Something denser than lead or DU, and not radioactive - for ballast, of course!

Tom

As I don't need to remind you, if such an element could be synthesised, and was stable, it would be found in nature...

P.I. Stazzer-Newt
12-23-2011, 04:37 PM
Top, Up, Down, Bottom, Charm - and of course, Strange......

eh?


Eggsplantation (http://en.wikipedia.org/wiki/Bottom_quark)

wardd
12-23-2011, 04:55 PM
i'm always finding new particles in my fridge

coelacanth2
12-23-2011, 05:55 PM
Andrew, I believe there are several radioactives at the top of the chart which are not found in nature because their half lives are so short - a few seconds at the most. They are _probably_ formed in novae but do not last long enough to be mined or extracted. Some have moderate half lives but decay quickly and energetically. Americium comes to mind there - iirc it is used in "nuclear batteries" in long range space probes. I believe it is made deliberately in research reactors but I forget the reactions involved. Russian acquaintance of mine could tell you some hair raising stories ...

I may very well be rong hear.

PhaseLockedLoop
12-23-2011, 06:56 PM
I think it's still "nature" such things supposedly appear in, though I admit it's a dreary point. The circumstances in which they've been "discovered" are only notionally natural, though.

Andrew Craig-Bennett
12-23-2011, 07:33 PM
I suppose that Americum 243, with a half life of 7,370 years, can be called stable...:)

coelacanth2
12-23-2011, 08:16 PM
Oops, sorry about that. Shoulda fact checked that one. Been 30 years since I fooled around that end of the Table.

Mad Scientist
12-24-2011, 07:21 PM
I was thinking of something from 30 years ago - scientists thought that more elements were waiting to be discovered, and, IIRC, they thought that they might replicate them by mixing the right amounts of protons, electrons and neutrons in a particle accelerator.

Crazy, shades of Alchemy!

If only I could remember where I read that...might have been Popular Science, in which case it ranks right up there with 'polywater'.

Tom

Andrew Craig-Bennett
12-24-2011, 08:31 PM
I remember that too; it was alchemical thinking not scientific thinking. If something isn't around, there is probably a reason why it isn't around!