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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
187 61,641
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
1 25,734
How can high energy physicists determine the spin of a particle that decays before even reaching the silicon...
May22-11 09:30 AM
4 1,865
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
6 1,865
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
14 1,864
Hi all, I am just reading Srednicki, chapter 88: The Standard Model: Lepton Sector and I'm not sure if I really...
Aug15-11 08:58 AM
1 1,864
Are all of the characteristics of particles currently confirmed by tests? For instance, while I understand that...
Nov16-05 01:50 PM
6 1,863
I've been doing some research on Muon spectroscopy, and am not that far in the physics world yet. I've got kind of a...
Mar8-05 06:53 AM
1 1,862
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
3 1,862
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
4 1,861
A charge has a mass-energy equal to the mass of the charge times the speed of light squared. So wouldn't there be a...
Aug13-08 07:43 PM
9 1,860
hiii guys, whats the binding energy of a neutron and how do you arrive at the answer? durrrrrrhhhhhhhhhh :confused:
Apr12-07 10:48 AM
1 1,859
Refer page-24 in Eq-6.19 is supposed to be the Lagrangian of Abelian-Higgs models....
Dec6-11 01:20 PM
1 1,859
Hi every body. Please forgive me if the question is not good,because in Vietnam I have to self-study Physics. I have...
Jul2-12 08:56 AM
5 1,859
First post and let me just say that after viewing this forums rules and it's warning system, I very much appreciate...
Jul1-04 07:46 AM
9 1,858
Any recommendation? I have found this one very spectacular: hep-ph/0404270 Eberhard Klempt Glueballs, Hybrids,...
Nov27-06 11:47 AM
2 1,857
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
1 1,857
we all know of positive / negative mass, could the theorised "Dark Matter" actually be "Neutral" Mass? just a...
Jun2-10 04:26 PM
16 1,857
I have two questions: which subatomic particles do we have empirical evidence for? And which are postulated but never...
Oct3-10 12:53 AM
16 1,857
Hello all! Clebsch-Gordon Coefficients tell us that in an SO(3) representation 3 x 2 = 4 + 2 (x/+ is the tensor...
Jun8-12 07:47 PM
8 1,857
Hello! I recently found a picture (Here's the link:CLICK) that is just a beautiful example of particle collision....
Dec26-07 01:55 AM
3 1,856
does neutrons have electromagnetic force? I mean it is the electromagnetic force which allows particles to feel...
Jun24-11 10:23 PM
8 1,856
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
10 1,855
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
8 1,855
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 1,855
So I heard a little rumor that Beta decays in certain isotopes release an electron at "ultrarelativistic" speeds. I...
Jun18-10 10:44 PM
9 1,855
This paper: explains with nice illustrations the...
Jun13-05 07:01 PM
0 1,854
( -- The results of a high-profile Fermilab physics experiment involving a University of Michigan...
Nov4-10 03:32 AM
8 1,854
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
9 1,854
Im aware of quark antiquark annihilation in a proton and have heard one opinon but want another. Do all the quarks get...
Dec17-12 10:19 AM
13 1,854
I want to know about the thresholds of particles observed when colliding two matter particles together in fermilab or...
Feb12-11 11:23 AM
4 1,853
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
1 1,852
I still don't understand antisymmetry and fermions. Is the proton wavefunction equal to this: ...
Mar29-11 07:45 PM
7 1,852
This article describes detection of cosmic rays with unbelievable energies: This is a proton with 20 joules of...
Mar19-05 10:44 AM
5 1,850
Are electrons "basic" particles? Or can they be broken down just like protons and neutrons? Would their wave nature...
Oct13-07 05:17 PM
8 1,850
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 1,849
How does the exchange of gluons between quarks "bind" them together?
Dec27-08 06:51 AM
6 1,849
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
0 1,848
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
4 1,847
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
2 1,847
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
8 1,846
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 1,846

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