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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
ChrisVer
187 62,509
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
ZapperZ
1 25,936
Recently, I was thinking about spin and isospin. It's been a while since I've dealt with particle physics, so my...
Dec17-13 08:15 AM
kith
0 822
Is the most stable/likely configuration of protons in heavy nuclei that of being evenly distributed throughout the...
Dec16-13 02:31 PM
K^2
8 1,054
If we could set the strong force to be ten times weaker (compared with the electromagnetic force) how much would the...
Dec15-13 02:57 PM
Spinnor
32 2,408
I read in my textbook that a decay process involving the strong interaction has a very short lifetime (10^-23s)...
Dec14-13 09:53 PM
Chenkb
4 877
Considering the modelling of a high energy proton beam neutrino experiment. I have questions concerning the scattering...
Dec14-13 06:22 PM
mfb
1 741
Hi all, I have a question about simulating (Monte Carlo) proton-proton collisions resulting in, for example, a Z...
Dec14-13 01:07 PM
Jan Eysermans
32 1,854
Photons are referred to as the field quanta for the electromagnetic field. I would like to understand how the...
Dec13-13 08:35 PM
Chenkb
8 1,470
I have a question about symmetry energy in semi-empirical mass formula, According to semi-empirical mass formula as...
Dec13-13 07:28 AM
lpetrich
4 1,054
I am trying to understand the concept of anomalies and the global or gauge symmetry breaking, i.e. the Lepton and...
Dec9-13 12:45 PM
ChrisVer
0 1,040
Hi all, I'd like to know what if we have a scatteing process A+B > C > E+D, what is the relation between the width...
Dec9-13 12:43 PM
RGevo
4 1,078
I'm working on an open-source textbook on special relativity. The text below is what I currently have on experimental...
Dec8-13 09:00 PM
jedishrfu
10 1,437
in a nutshell
Dec7-13 09:29 AM
bcrowell
5 2,486
There are something I don't get about the degrees of freedom(dof). For massive dirac spinor, there are four complex...
Dec6-13 03:06 PM
karlzr
6 1,393
I am having some difficulties in understanding something I found. Speaking about CKM matrix for N quark generations......
Dec6-13 09:26 AM
ChrisVer
12 1,331
Hi all, Could any one help for calculating the hadronc production cross section for example for tree level : p p >...
Dec6-13 09:13 AM
ChrisVer
1 1,068
After playing around with possible charges for new fermionic fields, I came to the conclusion that ONLY the U(1) gauge...
Dec5-13 09:43 PM
dauto
15 1,158
I heard from a few sources that the Higgs Boson particle probably doesn't exist, is this true? If so, what does...
Dec4-13 10:03 PM
nst.john
7 1,206
I am confused on an issue relating to gluons and mass. As I understand it, quarks don't actually have a lot of rest...
Dec4-13 11:56 AM
dauto
30 2,205
Hello, I have read that above a certain temperature, the weak bosons become massless and become indistinguishable...
Dec3-13 02:22 PM
bapowell
9 1,085
I was playing around with a classical field treatment of the SM, and I came across something strange I was hoping...
Dec3-13 01:09 PM
ChrisVer
6 840
Hi all, I'd like to know what is the integrated luminosity of CMS exp. Cern ? Best, S.
Dec3-13 12:39 PM
mfb
5 843
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
2 881
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
1 657
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
6 862
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
2 786
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 1,147
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
4 871
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
4 702
Can the classical electromagnetic force between two arbitrarily moving electrons, described by the Lienard-Wiechert EM...
Dec1-13 03:38 PM
meopemuk
1 728
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
3 593
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
2 587
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
4 870
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 1,222
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 1,556
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 3,665
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 15,251
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
3 671
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
6 797
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
5 871
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
4 824

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