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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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Feb23-13 08:41 AM
ZapperZ
1 21,047
God particle is 'found': Scientists at Cern expected to announce on Wednesday Higgs boson particle has been discovered...
Jul11-12 01:13 AM
tom.stoer
178 34,402
so does the Higg field give the neutrino mass, and can neutrino velocity change? how close to c is neutrino velocity?
May11-11 09:36 AM
Vanadium 50
5 4,554
I've been looking on Wikipedia about Ionizing Radiation. Basically, it's a technique that is used in Radiation...
May14-11 05:26 PM
Drakkith
4 1,735
I am calculating the one loop vacuum energy in the Wess-Zumino model, and I don't get a cancellation. For sure I've...
May15-11 10:03 AM
8813301043
3 1,735
What would be the best protection from these two at the same time? Lead alone or a mixture of something like lead and...
May16-11 08:40 PM
Drakkith
4 2,612
Can electron self energy diagram contribute to the vacuum polarization? Or is the question meaningful? What's the...
May11-11 11:52 AM
A. Neumaier
3 2,221
When anti matter and matter come into contact do they only annihilate each other leaving everything else undisturbed?...
May15-11 11:11 AM
orenrocco
9 2,733
I'm not always on the same computer, often times I'm using my phone to look for answers when doing physics on the go. ...
May12-11 08:46 PM
GDogg
2 1,698
why the electron does not stick to the nuclei?
May16-11 01:25 AM
ella1985
3 1,076
I'm trying to get a deeper understanding of how two particles such as protons interact with each other. In high school...
May11-11 01:58 PM
Bill_K
6 2,058
What is the mechanism for explaining the different effect of repulsion and also attraction due to the exchange of...
May12-11 08:29 PM
GDogg
3 2,969
Could somebody please explain to me the difference between flavour and mass eigenstates. The question is "Neutrinos...
May17-11 09:19 AM
clem
3 1,598
If the Higgs is responsible for the mass in the universe, but the Higgs itself has mass, then isn't that a little...
May13-11 01:08 PM
cello
5 1,648
This is really about challenging the understanding of "Time" in the physical sense. I would like to test the...
May11-11 04:23 PM
skeleton
4 1,351
I recently read a post which stated that the particle-antiparticle pair can be created by the interaction of photons ...
May11-11 11:40 AM
A. Neumaier
2 1,745
The graviton (spin 2) and the Higgs boson (spin 0) are both involved in gravity. The Higgs carrying mass, and the...
May18-11 06:42 AM
tom.stoer
10 5,968
How to divide positive and negative charges from each other without them interacting with other matter or charge...
May12-11 03:50 PM
Vanadium 50
7 1,135
It is well know that massless spin-1 gauge bosons have two spin states s=+1 and s=-1. There are two independent...
May18-11 05:01 PM
tom.stoer
29 4,230
Homework help please!! a) An ionization chamber is used with an electrometer capable of measuring 50 A. ...
May12-11 08:14 AM
stopitsonali
0 1,307
Hello. I've heard that electron capture rate, which is used in the dating with potassium-argon, can vary at...
May14-11 08:19 AM
Vanadium 50
11 1,592
If matter and antiMatter will annihilate each other after coming into contact,how can a meson come into existence?...
May21-11 05:45 AM
Drakkith
14 2,638
Can anyone suggest any study material for EXB sector field mass analysers?
May17-11 08:27 AM
Ranjini
0 703
Hello, In the lagrangian of QCD, there is q which is the quark field and it is the fundamental representation of...
May18-11 06:46 AM
tom.stoer
4 1,569
Is the Higgs boson and the Graviton two descriptions of the same thing?
May19-11 12:50 PM
Bill_K
3 2,235
(Note: Move this if this particular forum isn't appropriate) This is going to be a bit philosophical and is mostly...
May19-11 05:49 PM
Drakkith
1 1,676
Doing some examples I came across the question: Can the following processes occur and if not, why not? Draw...
May20-11 01:18 AM
malcomson
2 1,063
The Polyakov action has three symmetries, namely; Poincare, reparametrization and Weyl. Using the reparametrization...
May19-11 12:44 PM
Cesar Damian
0 736
Hello. I am trying to find the theoretical deduction of this limit. Do you know any reference I could use? Thanks.
May20-11 11:18 AM
go quantum!
0 928
I am curious if quantum field theory says anything about how much time it takes for an interaction, or particle...
May20-11 07:22 PM
chrispb
1 1,031
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
lpetrich
6 916
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
mfb
7 838
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
snorkack
2 613
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
4 705
Hi, aside from nucleons is there any other stable (metastable doesn't count in this question) hadronic matter that...
Nov25-13 09:03 AM
mfb
9 675
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
anorred
2 611
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
dauto
3 626
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
RGevo
5 730
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
bapowell
1 597
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
Safinaz
0 516
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
Bill_K
6 690
Can the classical electromagnetic force between two arbitrarily moving electrons, described by the Lienard-Wiechert EM...
Dec1-13 03:38 PM
meopemuk
1 615

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