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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
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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
ZapperZ
1 25,754
God particle is 'found': Scientists at Cern expected to announce on Wednesday Higgs boson particle has been discovered...
Jul18-14 12:32 PM
ChrisVer
187 61,736
Hi everybody, i'm worried about some calculation. I have to write down the amplitude for the neutral Kaon...
Nov29-13 05:51 AM
jkp
7 3,643
I understand that helium 3 has a very high probability of fusing with thermal neutrons, and the reaction produces...
Sep24-13 12:29 PM
CraigH
9 1,617
I'm not sure this thread belongs in this forum since we have now discovered a Higgs like boson. But I'm trying to...
Sep3-13 03:21 PM
Bill_K
20 5,732
What are the weak and strong forces? I'm trying to understand what are the strong and weak forces and more...
Sep24-13 03:27 PM
mathman
3 2,135
Dear Physics Forum, As I understand it, the Higgs field is a quantum field that stretches throughout our universe....
Nov28-13 10:42 AM
Mandragonia
48 15,208
Really quick question. In a graph like this: http://en.wikipedia.org/wiki/File:Cs137_Spectrum.PNG Source ...
Oct27-13 07:40 PM
mfb
6 1,052
Hi. I am confused about something related to the creation of particles/antiparticles in a complex scalar field. I...
Nov4-13 05:52 PM
spookyfish
2 897
Imagine that two electrons interact by exchanging a virtual photon. Electron A gains momentum ##-\vec{p}## and...
Nov5-13 07:43 AM
johne1618
2 886
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 1,083
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
mfb
5 1,048
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
mfb
7 1,065
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
Safinaz
2 648
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
mfb
5 804
Hi people, I've read some articles about the calculation of mass spectrum. But I'm not clear with this concept. Can...
Dec2-13 07:32 AM
K^2
13 1,138
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
mfb
11 1,103
Hi everyone, my question seems pretty simple, but I couldn't find any answers. OK, so the neutrino flavour...
Nov22-13 06:08 PM
BruceW
9 836
http://arxiv-web3.library.cornell.edu/abs/1311.5238 "Evidence for High-Energy Extraterrestrial Neutrinos at the...
Nov22-13 08:53 PM
fzero
1 666
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
7 958
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
snorkack
2 708
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
mfb
9 765
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
2 668
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
3 695
Hi, I'm studying about Renormalization group. I have a question about mass beta-function. Usually, when we...
Nov30-13 06:56 AM
andrien
9 1,208
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
5 858
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
1 668
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
0 588
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
Astronuc
13 1,505
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
6 789
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
mfb
3 664
Hello, Empirically, the flux distribution of cosmic ray muons follow cos^2(θ) where θ is angle of incidence....
Nov30-13 02:24 PM
phys_student1
4 859
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
atha
2 578
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
can anyone explain me about the differences between color and strong force?Though there are four fundamental forces so...
Dec2-13 03:30 AM
Drakkith
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
RGevo
4 697
What is best way to figure out which of these activation coils would yield a higher gamma flux: 27Al, 58Ni, and...
Dec2-13 01:27 PM
mfb
1 650
Can the classical electromagnetic force between two arbitrarily moving electrons, described by the Lienard-Wiechert EM...
Dec1-13 03:38 PM
meopemuk
1 720
Hi every one, This time i am studying Quantum field theory and some times we call also high energy physics. But when...
Dec2-13 07:41 AM
K^2
2 781
Hi all, Having looked into the Higgs mechanism a bit (I am a physics undergrad, so my understanding is pretty basic...
Dec2-13 11:54 AM
michael879
6 853
I was wondering if there are any theories that show how much mass the higgs field gives to each particle and why? I...
Dec3-13 03:47 AM
ChrisVer
2 874

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