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High Energy, Nuclear, Particle Physics

- Properties, relationships, and interactions of subatomic particles. Exp. & theo. physics of nuclei & elementary particles
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God particle is 'found': Scientists at Cern expected to announce on Wednesday Higgs boson particle has been discovered...
Jul11-12 01:13 AM
tom.stoer
178 34,654
rules Sticky Thread Pinned: Forum Rules
Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Feb23-13 08:41 AM
ZapperZ
1 21,105
Does anyone in this forum known when the Linus Pauling Close-Packed Spheron Model of the atomic nucleus was falsified...
Sep23-05 05:59 AM
Serbian.matematika
4 3,360
Why do we treat a scalar field phi and its derivatives as being independent when trying to find a stationary solution...
Sep26-05 06:50 AM
dextercioby
1 1,743
Is there a fundamental particle (like a Planck black hole) that has a finite radius?
Sep26-05 07:03 AM
dextercioby
15 1,916
Hi friends, What is the need for the existence of an antiparticle for a particle?
Sep26-05 07:24 AM
Haelfix
15 2,009
I've got an understanding problem. It's about the behaviour of charged particles in plasma inside of a tokamak. It...
Sep29-05 10:52 AM
Astronuc
3 4,549
does an electrostatically confined plasma fed tritium produce energetic e3nough neutrons to create tritium if allowed...
Sep29-05 11:00 AM
Astronuc
1 1,342
i was just wondering if theres anything smaller than a quark because as far as i know up, down, anti-, etc. quarks...
Sep29-05 09:03 PM
pallidin
6 1,980
Can we have a photon BE condensate? Theoretically, can graviton and gluons and all other force propagators make BE...
Sep29-05 11:26 PM
touqra
0 1,498
I remeber hearing somewhere that if you apply energy to virtual particles before they annhilate each other and...
Sep30-05 04:33 AM
marlon
6 1,099
Ummm...I don't know if this is the best section for this... but... it is said that a negetive energy can be created...
Oct2-05 06:55 PM
robousy
23 4,261
I'd like to ask some questions about the following example of broken symmetry and non-invariant vaccum. The basic...
Oct3-05 06:48 PM
robousy
3 2,891
The core of the collapsing star is initially composed of iron supported by electron degeneracy pressure, since the...
Oct4-05 05:00 AM
El Hombre Invisible
5 1,109
isn't it possible to split particles beyound elements and nucleas? can the splitting go on forever and ever?
Oct5-05 03:17 PM
mathman
1 2,238
How do we know that a graviton has to be spin 2?
Oct6-05 03:26 AM
dextercioby
7 8,472
Lets say I am looking at SU(5) and I draw a (young taleux) box and I say thats the 5 rep of SU(5). Then I draw 2...
Oct11-05 12:10 AM
Haelfix
19 2,948
Hi I have to draw a Feynman diagram for the following reaction: K^{*+} \rightarrow K^0 + \pi^+ The...
Oct11-05 03:40 AM
dextercioby
1 2,451
New issue of symmetry out today... cover story is about the Snowmass meeting to work toward designing the...
Oct12-05 03:35 PM
selfAdjoint
1 1,317
I have one stupid question: Is it true that the difference of proton and nucleon mass is due to the electromagnetic...
Oct12-05 05:14 PM
Astronuc
10 1,548
Has anyone seen this yet?
Oct12-05 07:57 PM
cscott
0 1,237
Consider this decay: Pion+ -> muon+ + neutrino It says that one can check the longitudinal polarization of the...
Oct13-05 07:57 AM
Astronuc
1 3,859
group theory is an integral part of particle physics and one needs a good understanding of this before one switches on...
Oct14-05 07:33 AM
preet0283
2 1,256
I am not a physics student but was just wondering, how much research is being done on the most abundant source of...
Oct14-05 09:49 PM
Grogs
1 1,551
Ok, I'm sure you a few of you know the effect of vacuum polarization. No, I read a book about quantum electrodynamics....
Oct15-05 10:49 PM
Kruger
0 1,131
Exactly how does it work when you split an atom? A neutron is shot at a nucleus. Does the nucleus split apart because...
Oct18-05 12:18 PM
jtbell
31 3,665
Does anybody know if the nuclear force microscope exists, where one could remove or put 1 nucleon at a time into an...
Oct19-05 02:07 PM
kleinwolf
5 1,463
Hi to all, I have two questions concerning neutrons. How is it possible to accelerate neutrons? Since they have no...
Oct20-05 07:14 AM
ZapperZ
8 2,852
In trying to grasp the Bell Theorem that "reality must be non-local" I have a question---what exactly does it mean to...
Oct23-05 12:30 PM
samalkhaiat
28 3,603
I am reading ahead for my Group Theory introduction to QFT and I have a question about the dual representation. If...
Oct23-05 05:03 PM
samalkhaiat
11 2,170
Anyone else here going to the Particles And Nuclei International Conference 2005 at Santa Fe, New Mexico, October...
Oct23-05 07:03 PM
CarlB
8 2,699
I noticed someone posted on the internet (not on PF of course!) a largely senseless attack on science which contains a...
Oct24-05 04:53 PM
peter.mason3
3 1,734
Beginners question : In GUTS what is the relevance of anomaly cancellation. Is it in some sense an axiom - like...
Oct25-05 01:08 AM
robousy
2 2,899
I've just completed Millikan's Oildrop experiment (with mixed results) and we haven't actually found the charge of an...
Oct26-05 02:34 AM
Integral
1 2,252
Maybe this thread should not be here. Are gravitons virtual or real. I've read that they are bosons, but... Also,...
Oct27-05 04:11 AM
dextercioby
1 1,465
How is the electroweak symmetry actually broken in the standard model ? Please could you explain the idea to me. ...
Oct28-05 04:31 PM
samalkhaiat
4 2,647
I noticed there were several ways for trying to solve that problem : 1) secretely leave them somewhere (seas,...)...
Oct29-05 09:50 PM
Haelfix
2 2,124
Hello all. I am trying to work through my problem sheets and I need some help from you guys.. I am trying to find...
Oct30-05 02:47 PM
Astronuc
1 2,522
hi, i am looking or a lab to measure the radioactive half-life of particles. i have looked through the internet but...
Oct30-05 02:55 PM
Astronuc
1 1,172
If you could see from the prespective of an individual electron, what would you see (disregarding the fact that it...
Oct30-05 08:37 PM
Haelfix
25 2,488
I am working a problem from the Mohapatra textbook unification and supersymmetry and the question is to show that if...
Oct30-05 09:52 PM
robousy
4 1,435
i read QED the other day, and was wondering, is the idea that a positron is an electron travelling backwards in time...
Oct31-05 06:48 AM
dextercioby
6 1,567

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