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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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Jan16-12 Greg Bernhardt
God particle is 'found': Scientists at Cern expected to announce on Wednesday Higgs boson particle has been discovered...
Jul18-14 12:32 PM
ChrisVer
187 59,101
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 25,233
This article describes detection of cosmic rays with unbelievable energies: This is a proton with 20 joules of...
Mar19-05 10:44 AM
joshuaw
5 1,844
Are electrons "basic" particles? Or can they be broken down just like protons and neutrons? Would their wave nature...
Oct13-07 05:17 PM
0402458
8 1,843
I want to know more about the cross sections in reaction neutron + targets which neutron has energy in the resonance...
Jun28-08 05:20 AM
malawi_glenn
1 1,843
Hi everybody! I thought I'd introduce myself. I have been lurking around on this forum for awhile now. Yes, I am a...
Feb15-08 03:01 PM
jamus
3 1,842
Forgive my lack of particle physics undestanding, I'm still trying to teach myself! I've been looking into guage...
Oct27-10 07:41 PM
bcrowell
14 1,842
why is it so difficult for physicists to probed inside the internal structure of an electron ? You would think it...
Dec17-08 03:40 PM
pentazoid
8 1,841
Couldn't gravity just be a residual effect of the strong nuclear force? We know that the manner in which a proton's...
Aug9-10 03:26 PM
crx
4 1,841
using tin foil and fissile material from 1950s glow in the dark stuff. does anyone have a link/ know anything about...
Nov29-06 04:59 PM
Pieter Kuiper
4 1,840
Can the cross-section of the weak interaction be extended? Are there things that can be done to fundamental particles...
Aug6-04 05:42 PM
zefram_c
8 1,839
OK, i'm currently in the process of designing an experiment to measure the rest lifetime of the muon, using a vertical...
Aug1-06 11:19 PM
MaximumTaco
0 1,839
How does the exchange of gluons between quarks "bind" them together?
Dec27-08 06:51 AM
stevebd1
6 1,839
So I heard a little rumor that Beta decays in certain isotopes release an electron at "ultrarelativistic" speeds. I...
Jun18-10 10:44 PM
Yevgenia
9 1,839
How many w particles,at any instant in time, are there in one cubic metre of a mass of radioactive nuclei which...
Sep10-04 09:41 AM
marlon
4 1,838
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 1,838
I recently had a test question posed to me that asked firstly for an explanation of the terms in the semi empircal...
Nov16-07 04:59 AM
genloz
2 1,838
If photons are their own antimatter, then why don't they just annihilate? Also, do neutrons have antimatter, or is it...
Dec13-08 07:51 AM
Haibara Ai
2 1,838
does neutrons have electromagnetic force? I mean it is the electromagnetic force which allows particles to feel...
Jun24-11 10:23 PM
Drakkith
8 1,838
Refer page-24 in http://arxiv.org/abs/1010.0443v3 Eq-6.19 is supposed to be the Lagrangian of Abelian-Higgs models....
Dec6-11 01:20 PM
crackjack
1 1,838
Is there a certain fixed degree of uncertainty? Like for example, we can't reach absolute zero because we would know...
Sep22-04 09:39 AM
marlon
7 1,837
I still don't understand antisymmetry and fermions. Is the proton wavefunction equal to this: ...
Mar29-11 07:45 PM
RedX
7 1,837
Hi- I've just completed problem 13.1 in Srednicki in which he tells us to relate the field-strength renormalization...
Apr26-12 03:01 PM
Lapidus
8 1,837
When a proton collides with a proton say at the LHC, is vacuum field theory used? It seems like you shouldn't have to...
Jul17-14 04:48 PM
mfb
4 1,837
So the way I understand it is that certain particles move through the Higgs field and encounter no resistance, giving...
Aug13-12 10:26 AM
RagingHadron
9 1,836
why nuclear radiations occur in atoms with large nucleus?Is it the weakening of residual strong force? If so why it...
Jul21-13 08:59 AM
mfb
5 1,836
What does the author mean here when he says How does a massive particle have a specific chirality? I learned...
Feb17-12 04:36 PM
naima
6 1,835
based on its currently energy and luminosity, can LHC discover Higgs/SUSY in regions where Tevatron has not been able...
Apr5-10 09:03 PM
Frame Dragger
11 1,834
Is there a difference between (1-\gamma^5) and (1-\gamma_5) ? I see the two used interchangeably when...
Apr26-08 07:18 AM
Mr.Slava
6 1,833
Any recommendation? I have found this one very spectacular: hep-ph/0404270 Eberhard Klempt Glueballs, Hybrids,...
Nov27-06 11:47 AM
arivero
2 1,832
i want to know how neutrinos interact with strong beam of laser , if laser beam is going in opp direction along a...
Oct6-11 08:06 AM
Bill_K
1 1,832
Why cant we tell the mass of electron neutrinos, mu neutrinos, and tau neutrinos?
Oct13-10 12:37 AM
Parlyne
2 1,831
There are said to be eight gluons, and I understand the reasoning, but I cannot determine for certain if this is a...
Apr4-05 11:56 PM
elas
10 1,830
tell me in detail what is higgs mechanism. why the ground state do not obey symmetry? i think this is very important...
Apr27-07 12:53 AM
shakeel
0 1,830
what makes an alpha particle more strongly ionising than an electron? It is simply because of the fact that the alpha...
May7-08 07:40 AM
vertices
6 1,830
Hi i am wondering what sort of particle has a size of magnitude 10^-21 m, im thinking perhaps a string? Any help would...
Apr17-05 02:35 AM
dextercioby
1 1,829
Discovery of charm quark, .... Pls add more ...
Aug11-06 11:55 AM
BuckeyePhysicist
2 1,829
Question: The postulate that mass attracts mass is present in both the classical description of gravity and GR. My...
Oct15-08 02:33 PM
Nuclear Lad
7 1,829
we all know of positive / negative mass, could the theorised "Dark Matter" actually be "Neutral" Mass? just a...
Jun2-10 04:26 PM
tom.stoer
16 1,829
I am in my senior year of undergrad studies and would like to read a research paper on the NEUTRINO MASS. I am hoping...
Feb27-05 12:56 PM
JamesJames
13 1,828
Light-Front Holography Will this approach generate any interest? http://arxiv.org/abs/0804.0452 Light-Front...
Apr22-08 09:17 PM
jal
8 1,826
Where can get the Higgs equation for his model?
Oct21-11 09:37 PM
yoron
1 1,826

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