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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 61,688
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 25,743
can anyone explain me about the differences between color and strong force?Though there are four fundamental forces so...
Dec2-13 03:30 AM
4 863
Hi everyone, I am doing a final project on the title " fundamentals of neutrino physics". I wanted to raise some...
Dec1-13 04:36 PM
4 697
Can the classical electromagnetic force between two arbitrarily moving electrons, described by the Lienard-Wiechert EM...
Dec1-13 03:38 PM
1 719
I'm currently doing some research at the moment for my professor, and he gave me a list of things to look at. Before...
Dec1-13 01:11 AM
Simon Bridge
3 589
I was given a sample, that it is suppossed to be a medium thickness Rhodium on top of an infinite silicon waffer. The...
Nov30-13 05:07 PM
2 577
Hello, Empirically, the flux distribution of cosmic ray muons follow cos^2(θ) where θ is angle of incidence....
Nov30-13 02:24 PM
4 859
Hi, I'm studying about Renormalization group. I have a question about mass beta-function. Usually, when we...
Nov30-13 06:56 AM
9 1,206
As a physics student, I understand that α particles are emitted and are the same as helium atoms without electrons. ...
Nov29-13 09:05 AM
13 1,503
Hi everybody, i'm worried about some calculation. I have to write down the amplitude for the neutral Kaon...
Nov29-13 05:51 AM
7 3,643
Dear Physics Forum, As I understand it, the Higgs field is a quantum field that stretches throughout our universe....
Nov28-13 10:42 AM
48 15,205
Co-60 is produced from Co-50 through neutron activation. Neutron flux 10^18 nuetrons/(s*m^2). cross section is 20...
Nov27-13 06:12 PM
3 663
I've been trying to get a grasp of what they ideal of antimatter is exactly. I do understand that it's the 'opposite'...
Nov27-13 06:02 PM
6 789
In my class notes, the muon decay width is: \Gamma_\mu=\frac{G^2_F m^5_\mu}{192\pi^3} Yet, in Wikipedia (take...
Nov26-13 05:51 AM
5 858
I am not really sure whether this topic belongs here or not, but since my example will be a certain one I will proceed...
Nov25-13 09:50 PM
George Jones
4 812
Hi, aside from nucleons is there any other stable (metastable doesn't count in this question) hadronic matter that...
Nov25-13 09:03 AM
9 765
Hi all, Let me ask about what is meant that Narrow width approximation has an error ~ ## \Gamma/m ##, is it mean...
Nov25-13 08:04 AM
0 587
Hi All, I'm working through the theory of the strong interaction and I roughly follow it. However I have some...
Nov25-13 06:54 AM
1 668
Hello. I read about fast neutron therapy for cancer and the therapy uses a beam of high energy neutrons. How do you...
Nov24-13 01:52 PM
2 666
Hi all, why in SUSY we tend to use 2- components Weyl spinor field not the ordinary Dirac filed .. Regards,...
Nov24-13 11:47 AM
3 695
Hello, I am a layman who just read Sean Carroll's The Particle at the End of the Universe and I am trying to...
Nov24-13 08:06 AM
7 958
As I mentioned, I want to know if the cahrge distribution of nuclei has any influence on electronic properties. And...
Nov23-13 12:37 PM
2 708
For the electron, wiki lists its magnetic moment as −1.00115965218076(27) μB. It does not list it for the Muon or...
Nov23-13 02:35 AM
6 1,081 "Evidence for High-Energy Extraterrestrial Neutrinos at the...
Nov22-13 08:53 PM
1 665
Hi everyone, my question seems pretty simple, but I couldn't find any answers. OK, so the neutrino flavour...
Nov22-13 06:08 PM
9 836
Hi all, I try to understand the difference which can made by using or not using NWA .. I have a process have...
Nov22-13 02:09 PM
2 647
I read recently, that by separating two quarks, once a high enough energy has been introduced, new quark pairs will...
Nov22-13 01:22 PM
11 1,102
The binding energy (BE) per nucleon for 235U is 7.6 Mev. The 235U undergoes a nuclear fission to produce two fragments...
Nov21-13 07:48 AM
7 1,065
I'm curious to know what tends to be 'left over' after particle collisions at sites like LHC. I realize that many...
Nov20-13 03:34 PM
5 804
Where would you use our new radiation detector? We are a student team from the Vienna University of Economics and...
Nov20-13 03:18 PM
5 1,047
I would like to ask you 2 completely separate questions... Since both concern the W,Zs I don't want to create more...
Nov20-13 09:50 AM
14 1,302
Hello to everybody, I need some explanation on how to use SDEF variables to define correctly a planar rectangular...
Nov20-13 05:51 AM
0 685
Can anyone give or point me to a list of ALL continuous symmetries in the standard model, and the conserved currents...
Nov18-13 09:39 PM
3 916
Hi all, Do any one know what is the spin correlation and what its relation to theNarrow Width Approximation. ...
Nov17-13 04:11 PM
1 803
I know that, given scalar A_{i} fields, the normal order is defined as :A_{1}...A_{n}: = \sum \prod A^{-}_{i}\prod...
Nov16-13 08:35 AM
0 690
Recently, I read a review on magnetic monopole published in late 1970s, wherein some conjectures of properties...
Nov16-13 03:30 AM
Simon Bridge
1 757
The problem is showing (□+m^2)<0| T(∅(x)∅(y)) |0> = -δ^4 (x-y) I know that it is relavent to Green's function,...
Nov12-13 09:34 AM
2 1,613
Hello everyone, I have been wondering about the quantization of Maxwell's equation in free space, but now suppose that...
Nov12-13 08:08 AM
6 1,170
Hello everyone, I have read about the theoretical values of the Z boson decay partial width and how well they...
Nov11-13 01:06 PM
Vanadium 50
6 1,139
I am studying QFT and got stuck on one question which may be simple. Why is structure constants (in Lie algebra) real...
Nov11-13 10:05 AM
George Jones
3 1,211
I confront an integration with the following form: \int d^2{\vec q} \exp(-a \vec{q}^{2})...
Nov10-13 07:55 PM
2 1,023

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