
God particle is 'found': Scientists at Cern expected to announce on Wednesday Higgs boson particle has been discovered...

Jul1814 12:32 PM
ChrisVer

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Before posting anything, please review the Physics Forums Global Guidelines.
If you are seeking help with a...

Feb2313 08:41 AM
ZapperZ

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Recently, I was thinking about spin and isospin. It's been a while since I've dealt with particle physics, so my...

Dec1713 08:15 AM
kith

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822 
Is the most stable/likely configuration of protons in heavy nuclei that of being evenly distributed throughout the...

Dec1613 02:31 PM
K^2

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1,054 
If we could set the strong force to be ten times weaker (compared with the electromagnetic force) how much would the...

Dec1513 02:57 PM
Spinnor

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2,408 
I read in my textbook that a decay process involving the strong interaction has a very short lifetime (10^23s)...

Dec1413 09:53 PM
Chenkb

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877 
Considering the modelling of a high energy proton beam neutrino experiment. I have questions concerning the scattering...

Dec1413 06:22 PM
mfb

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741 
Hi all,
I have a question about simulating (Monte Carlo) protonproton collisions resulting in, for example, a Z...

Dec1413 01:07 PM
Jan Eysermans

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1,854 
Photons are referred to as the field quanta for the electromagnetic field.
I would like to understand how the...

Dec1313 08:35 PM
Chenkb

8 
1,470 
I have a question about symmetry energy in semiempirical mass formula,
According to semiempirical mass formula as...

Dec1313 07:28 AM
lpetrich

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I am trying to understand the concept of anomalies and the global or gauge symmetry breaking, i.e. the Lepton and...

Dec913 12:45 PM
ChrisVer

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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...

Dec913 12:43 PM
RGevo

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1,078 
I'm working on an opensource textbook on special relativity. The text below is what I currently have on experimental...

Dec813 09:00 PM
jedishrfu

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in a nutshell

Dec713 09:29 AM
bcrowell

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2,486 
There are something I don't get about the degrees of freedom(dof).
For massive dirac spinor, there are four complex...

Dec613 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......

Dec613 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 >...

Dec613 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...

Dec513 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...

Dec413 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...

Dec413 11:56 AM
dauto

30 
2,205 
Hello,
I have read that above a certain temperature, the weak bosons become massless and become indistinguishable...

Dec313 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...

Dec313 01:09 PM
ChrisVer

6 
840 
Hi all,
I'd like to know what is the integrated luminosity of CMS exp. Cern ?
Best,
S.

Dec313 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...

Dec313 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...

Dec213 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...

Dec213 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...

Dec213 07:41 AM
K^2

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786 
Hi people, I've read some articles about the calculation of mass spectrum. But I'm not clear with this concept. Can...

Dec213 07:32 AM
K^2

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can anyone explain me about the differences between color and strong force?Though there are four fundamental forces so...

Dec213 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...

Dec113 04:36 PM
RGevo

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702 
Can the classical electromagnetic force between two arbitrarily moving electrons, described by the LienardWiechert EM...

Dec113 03:38 PM
meopemuk

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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...

Dec113 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...

Nov3013 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....

Nov3013 02:24 PM
phys_student1

4 
870 
Hi, I'm studying about Renormalization group.
I have a question about mass betafunction.
Usually, when we...

Nov3013 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.
...

Nov2913 09:05 AM
Astronuc

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1,556 
Hi everybody,
i'm worried about some calculation. I have to write down the amplitude for the neutral Kaon...

Nov2913 05:51 AM
jkp

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Dear Physics Forum,
As I understand it, the Higgs field is a quantum field that stretches throughout our universe....

Nov2813 10:42 AM
Mandragonia

48 
15,251 
Co60 is produced from Co50 through neutron activation. Neutron flux 10^18 nuetrons/(s*m^2). cross section is 20...

Nov2713 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'...

Nov2713 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...

Nov2613 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...

Nov2513 09:50 PM
George Jones

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824 