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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
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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 24,051
Imagine charging up two conducting plates, placed nowhere near each other in an open air, to several hundred thousand...
May2-08 04:57 PM
3 2,565
According to my notes "any pair of similar quarks must be in identical spin states". What is the reason for this?
May2-08 03:24 PM
5 2,319
why can't a gamma ray photon -->positron+electron? My notes simply say this would violate momentum conservation (you...
May2-08 02:19 PM
11 2,402
If particle A interacts with particles B and C, and there is a 50/50 chance of measuring B/C does the doublet column...
May2-08 12:02 PM
0 1,068
What is meant by BPS state in an interacting field theory? Suppose I have the action for some theory. Now how do I...
May1-08 12:00 PM
George Jones
1 2,327
The tachyon has a spin of 0, does any other particle have a spin of 0?
May1-08 01:30 AM
9 2,860
why is it that the feynman diagram illustrating Bremstrahlung radiation has three vertices; basically an electron...
Apr30-08 02:39 PM
3 2,856
Hi guys, I have a basic question about neutrinos. Since it is now supposed from both cosmological and particle physics...
Apr30-08 02:26 PM
5 1,508
If a proton and neutron have a mass of roughly 1.67e-27 kg . And a proton has a diameter of 1.65e-15 .. Is the...
Apr30-08 08:18 AM
17 5,823
When I have an ionized fluid (plasma) and I describe it in a continuum approach I can use the MHD equations (the...
Apr30-08 03:20 AM
0 1,448
The hunt for superheavy elements has focused banging various heavy nuclei together and hoping they’ll stick. In this...
Apr29-08 05:19 PM
7 2,803
Can buckyballs compress hydrogen into high-density metallic form? ...
Apr29-08 04:54 PM
3 4,414
I'm currently working on my junior project (it's basically a senior project, but for some reason you're supposed to...
Apr27-08 10:10 PM
0 2,443
I'm interested in comments on this I tried to upload it to the forum but...
Apr27-08 05:37 AM
6 1,852
If we consider nonrelativistic QM, we will find Galilean group under the hood. Thanks to this, group theory enables us...
Apr27-08 04:24 AM
2 1,878
I was always interested why have scientists tried to speed up electrons to the speed of light, unless they were trying...
Apr27-08 03:34 AM
4 3,841
Does anyone have Volume 60 Issue 2 of the American Journal of Physics Published 02/1992? I am interested in the...
Apr26-08 11:18 AM
7 3,790
Is there a difference between (1-\gamma^5) and (1-\gamma_5) ? I see the two used interchangeably when...
Apr26-08 07:18 AM
6 1,818
Hi, a few months ago, someone pointed me to an excellent primer on lattice calculations, available for free on...
Apr25-08 11:03 AM
2 1,371
hey i am having a problem problem with understanding the difference between the parton model for the structure of the...
Apr25-08 10:02 AM
13 3,276
Would anyone know of any textbook that has explicit calculations of cross section using intermediate vector boson...
Apr25-08 09:54 AM
5 2,149
So, the common leptonic decay channels for the K^{+/-} is the two quarks annhilating into a W^{+/-} which then decays...
Apr24-08 09:35 AM
4 2,105
No infraction please!!! I was perhaps mistakenly under the impression that matter was destroyed in nuclear...
Apr23-08 02:12 PM
10 2,020
There has been a spate of writing in the popular media about the debates between scientific teams regarding various...
Apr23-08 02:10 PM
9 1,719
I'm doing an essay where I am exploring whether or not elements were, for the most part, formed under conditions of...
Apr23-08 12:20 PM
6 1,644
I am baffled by what exactly it means to have the following (ingoing, outgoing) lepton pair configuration: (0,\nu_L...
Apr23-08 07:02 AM
0 1,313
Light-Front Holography Will this approach generate any interest? Light-Front...
Apr22-08 09:17 PM
8 1,821
Hi all, I'm trying to teach myself high energy physics and was wondering if any one knew a good reference site on...
Apr22-08 01:09 PM
30 5,237
Do the gamma rays (from positron-electron annihilation) must interact to have reversible reaction? I read in my text...
Apr21-08 04:51 PM
12 3,552
I ve got a small question. As I have learnt so far, the electron is a particle with negative charge and it is...
Apr19-08 11:19 AM
19 11,737
I am wondering whether someone can suggest a good ref or two (preferrably with worked example) on how to use Cutkosky...
Apr19-08 05:25 AM
6 5,133
This may seem like a stupid question that's been brought up several times but it is regarding the possible creation of...
Apr19-08 04:25 AM
1 1,053
Refering the "Precision Measurements of the W Boson Mass" at Annu. Rev. Nucl. Part. Sci. 200. 50:207-48 by Douglas A....
Apr18-08 04:02 PM
0 2,413
What would happen to a cubic foot of neutrons if, say, you scooped them up off of a neutron star and kept them...
Apr18-08 08:13 AM
14 2,405
Annihilation (connecting positron and electrons) gives us 2 gamma rays. I.e ^{0}_{-1}e+ ^{0}_{+1}e \rightarrow 2...
Apr17-08 12:39 PM
46 3,996
1a. Is possible for an electron and a proton to fuse? 1b. If yes, do you get a neutron? 2. What PREVENTS...
Apr17-08 11:40 AM
8 6,842
According to a text book that I was looking at, electron capture and electron-proton collisions both produced a...
Apr16-08 03:53 PM
8 1,646
"Why did Matter Beat Out Anitmatter?," reads the article title listed in the sidebar on the righthand side of the...
Apr15-08 10:10 PM
2 1,503
Iím trying to find get some information on the theoretical limits of direct energy weapons, particularly particle...
Apr15-08 09:41 PM
0 2,300
Has anyone heard of Milo Wolff? I recently came upon using StumbleUpon, and read the section...
Apr15-08 03:42 PM
1 5,007

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