Testing physics - elementary particles can became other particles?
Aug 18, 2013 5 Replies
G
Glenn
(answer is sent to sci.physics )
Some time it occurred to me, that this equation seems not to be sane? Please explain why it is ok:
d-kvark -> electron + antineutrino + u-kvark
How can the elementary particle d-kvark become/transform into three other elementary particles?
-
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Quote: "... ?? ? e? + ?e + ??
?+ ? e+ + ?e + ?? ..."
Again can elementary particles can become/transform into three other elementary particles?
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What is wrong? Is it a fundamental secret physics prank, that I missed in college?:
Elementary particle:
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Quote: "... In particle physics, an elementary particle or fundamental particle is a particle unknown to have substructure, thus unknown to be composed of other particles.[1] [] Known elementary particles include the fundamental fermions (quarks, leptons, antiquarks, and antileptons), which generally are "matter particles" and "antimatter particles", as well as the fundamental bosons (gauge bosons and Higgs boson), which generally are "force particles".[1] ..."
/Glenn
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B
Bill Sloman
Obviously.
Since elementary particles can appear - in matched pairs with their anti-pa rticle by "vacuum fluctuation" - it's not hard to see how an elementary par ticle might transform into three elementary particles when the two extra pa rticels are a particle/anti-particle pair.
If your physics teachers didn't tell you about this, they weren't doing muc h of a job. I think the idea goes back to Dirac, around 1930
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where he invented anti-particles to solve a theoretical problem. Once he'd invented the positron, it took two years for somebody to find one.
Bill Sloman, Sydney
C
Clifford Heath
My high-school physics teacher (who'd just finished a PhD in quantum physics) use to say:
"In nuclear physics, anything will do anything if you pay it enough"
:)
P
Phil Hobbs
That's the nuclear version of Schawlow's Law: "Anything will lase if you hit it hard enough."
Cheers
Phil Hobbs
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
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160 North State Road #203
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hobbs at electrooptical dot net
http://electrooptical.net
G
Glenn
...
Hi!
ben6993 could you or others show other models - or the preon model decay for the muon. Or better yet - a web page with many decay examples?
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Answers got so far - thanks.
On 19/08/13 01.13, ben6993 wrote: > In a preon model, > W- = e- + ?' > W+ = e+ + ? > Higgs = H = W- + W+ > W- = du' > W+ = d'u > > So if d interacts with H, > d + H -> d + W+ + W- > -> d + d'u + e- + ?' > -> u + e- + ?' (+ annihilated d& d') > The Higgs is the omitted sleeping partner on the LHS which balances the > decay equation. >
On 19/08/13 14.42, Odd Bodkin wrote: ... > This happens when it radiates a W boson, right? > I'm pretty sure that just because a particle decays into daughter > particles, this doesn't mean that the daughter particles are contained > inside the parent particle.
On 18/08/13 22.00, Bill Sloman wrote: ... > > Since elementary particles can appear - in matched pairs with their anti-particle by "vacuum fluctuation" - it's not hard to see how an elementary particle might transform into three elementary particles when the two extra particels are a particle/anti-particle pair. > > If your physics teachers didn't tell you about this, they weren't doing much of a job. I think the idea goes back to Dirac, around 1930 > >
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> > where he invented anti-particles to solve a theoretical problem. Once he'd invented the positron, it took two years for somebody to find one. >
On 18/08/13 22.43, Sam Wormley wrote: ... > In both of your examples, the more massive fundamental particle is > known to be unstable and "decays" into a less massive set of > fundamental particles. I don't have the insight that some others, > say Tom Roberts or PD might bring to the conversation. > >
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/Glenn
G
Glenn
(answer is sent to sci.physics )
...
Hi ben6993 and others
How is
-
W- = du'
transformed to or from:
W- = e- + ?'
-
and
W+ = d'u
transformed to or from:
W+ = e+ + ?
?
/Glenn
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