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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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Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Feb23-13 08:41 AM
1 25,157
Suppose I try to find variation of the term \phi^2 under variation of \phi i.e., (\delta \phi). Then I take...
May11-08 01:04 PM
2 1,953
Is possible some elements (like Cadmium or Bohr) absorb neutrons, without any nuclear reaction in their atomic...
May10-08 08:07 PM
8 3,171
Does anyone know specific dates on when the first experiments (particularly thos involving finding the Higgsparticle)...
May9-08 01:38 PM
7 3,000
The moderators can change the title and/or move it to where they think this is appropriate. ===== The web is 15...
May9-08 10:35 AM
0 983
Why more energy is released in fusion than fission?
May8-08 07:31 PM
14 5,092
Hi, I'm an undergrad physicist in a bit of a pickle over how isospin relates to scattering amplitude. It's been...
May8-08 02:59 PM
0 1,539
Hi all! I have the following question to solve and it's getting me down. Suppose we have an alpha source with...
May7-08 12:47 PM
2 3,082
hello people, i am new at physics and i have a question that you will be able to answer !! well, supposedly...
May7-08 09:38 AM
5 1,805
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
6 1,830
I have a few questions with spin. Actually, quite a alot. 1)What I know is proton and electron have spin. What...
May7-08 03:11 AM
1 1,069
Using a Van De Graaff (VDG) machine, we can easily generate million-volt high voltage. The high potential difference...
May7-08 12:37 AM
0 1,184
What is the typical efficiency (as a function of muon energy and/or rapidity) of a moun detector at an accelerator...
May6-08 01:58 PM
15 2,074
Can someone help me find these calculations or give me a point in the right directions? If I have a hollow...
May6-08 06:42 AM
4 7,498
Cross section means the effective size of a nucleus for capturing a neutron, am I right? But what makes the cross...
May5-08 04:11 PM
26 12,594
How was the charge of up/down quarks determined?
May3-08 08:02 PM
8 1,699
Hi, is there anyone that can tell how neutrons are accelerated for experimental use.
May3-08 04:22 PM
7 1,966
Hi! I am reading about the Z^0 production and decay processes at the moment. I have understand that the Z^0 ...
May3-08 01:34 PM
11 3,700
Hi! I was wondering how W+/- pairs can be created in an electron/positron collider. Does the e+e- form a Z^0 ...
May3-08 07:07 AM
2 3,078
It seems strange that a neutron wouldn't have a function within an atom other than obtain mass, a neutral charge, and...
May2-08 06:20 PM
4 1,278
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 2,582
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 2,394
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 2,421
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 1,069
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 2,335
The tachyon has a spin of 0, does any other particle have a spin of 0?
May1-08 01:30 AM
9 3,465
why is it that the feynman diagram illustrating Bremstrahlung radiation has three vertices; basically an electron...
Apr30-08 02:39 PM
3 2,862
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 1,509
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 5,870
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 1,451
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 2,810
Can buckyballs compress hydrogen into high-density metallic form? ...
Apr29-08 04:54 PM
3 4,425
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 2,451
I'm interested in comments on this I tried to upload it to the forum but...
Apr27-08 05:37 AM
6 1,860
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 1,894
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 3,847
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 3,799
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 1,832
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 1,376
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 3,301
Would anyone know of any textbook that has explicit calculations of cross section using intermediate vector boson...
Apr25-08 09:54 AM
5 2,154

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