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If you are seeking help with a...

Feb2313 08:41 AM
ZapperZ

1 
25,936 
God particle is 'found': Scientists at Cern expected to announce on Wednesday Higgs boson particle has been discovered...

Jul1814 12:32 PM
ChrisVer

187 
62,509 
I understand how fission happens. But what I do not understand is why only a few certain nuclei are actually...

Jan3009 09:02 PM
granpa

34 
4,007 
Hello once again. I'm trying to understand the relation between the superspace representation of the SUSY generators...

Feb909 11:41 AM
JosephButler

5 
2,109 
At a physics conference on the east coast, feynman says that empty space isn't really empty but empty space make up of...

Jan3009 06:19 PM
math_04

12 
5,466 
Hey all, I am an undergraduate taking a particle physics class and we just learned that the EM force was caused by...

Feb909 10:49 AM
lbrits

2 
2,083 
Hi:
I am confused that we talk in general about only nuclear spin larger than 1/2 which has electric quadrupole. For...

Jan2909 03:41 PM
clem

14 
2,256 
Ok, I know this question is very old, and it has probably been answered by now, but if the electron does not have an...

Feb209 08:22 AM
enotstrebor

54 
13,823 
Hello,
how do the angular distributions of Bhabha Scattering
e^+ e^ \Rightarrow e^+ e^
and Muon pair...

Feb709 12:28 PM
Sideways

1 
4,328 
I can picture gravity as the warping of spacetime as postulated by GR but I have not heard a descriptive explanation...

Jan3009 11:03 PM
jtbell

1 
1,696 
Hello, I'm a novice in this field, but there is one thing I have been wondering about for a long time. Maby you could...

Jan2909 09:29 AM
malawi_glenn

1 
1,802 
Dear All,
I'm reading Georgi's text about Lie algebra, 2nd edition.
In chap 6, he introduced "Roots and...

Feb1609 05:22 AM
Atakor

7 
2,639 
Can anyone recommend a good Feynman diagram calculator ?

Feb209 02:14 AM
BenjF

4 
11,473 
Hi, i would like about the decay of positronium (a electron and a positron going around the center of mass) in 2...

Jan3109 01:51 PM
Redbelly98

5 
3,437 
why we need intermediate particles? i.e. why we want virtual particles like w,z boson etc..
for example,in the beta...

Jan3109 05:57 PM
malawi_glenn

4 
1,506 
Well I was talking to my physcis teacher because were currently studying nuclear physics. And he likes tellign stories...

Feb209 12:16 PM
QuantumPion

2 
2,436 
Hi all,
I need to construct the Casimir op. of group SU(3).
I have these relations;
T2=\sum C_{i}_{j}T_{i}T_{j} ...

Feb409 10:40 PM
torehan

12 
7,325 
What exactly does the weak interactive force act on?
Does it act on Mesons and Bosons?

Feb209 01:59 PM
hagi

3 
1,497 
Hello,
I'm fairly new with the nuclear physics, but I'm willing to study and learn as much as possible.
I've...

Feb409 04:31 PM
malawi_glenn

8 
4,327 
I've read conflicting definitions of what happens to the force between quarks as they're pulled apart. Do the gluon...

Feb409 11:37 PM
jambaugh

13 
2,535 
This may seem like a really obvious question to those that know it but...
We looked at Yukawa's potential the other...

Feb309 09:08 AM
Ayame17

2 
2,567 
If I look at the energy of the hydrogen atom, the energy is proportional to the mass of the electron (or more...

Feb909 03:44 AM
malawi_glenn

3 
1,932 
Hey guys,
I have a question for the particle physicists from an astronomer's point of view. First of all, with...

Feb609 05:33 AM
malawi_glenn

1 
1,297 
Hey, Im just woondering if anyone here have computed (numerically) the BreitWigner for a particle decay. I have to do...

Feb609 04:06 PM
clem

4 
2,097 
My understanding of the Higgs ocean comes from Briane Greene's The Fabric of the Cosmos. The book says that the Higgs...

Feb709 08:30 AM
Charlie G

6 
1,478 
Hi to everyone:
Does anybody of you know when was the gluon detected?, and how do you detect...

Feb709 11:55 AM
Sideways

4 
2,506 
Can some kind person please explain why He4 is so high and Li6 is so low on the graph of binding energy per nucleon....

Feb609 04:23 PM
malawi_glenn

1 
2,474 
Hi everyone  I have a question about the relation between the spin connection and the Christoffel connection.
The...

Feb909 10:34 AM
lbrits

3 
7,893 
At the moment I am struggeling to find out about hidden sectors. So far I've been unable to find any in depth explicit...

Feb809 12:33 PM
MrHyde

2 
1,620 
First, this is my 1st post on physicsforums.com, so I'm not too sure I'm posting this in the right place, but guts...

Feb2009 09:07 AM
clem

11 
3,249 
Would it be feasible theoretically to use a continuous endothermic fusion reaction as a highenergy heat sink? ...

Feb1409 04:22 PM
duration

4 
1,761 
Can someone explain to me what Aether is? And what's the difference between the Higgs field and the aether?
thanks

Feb2809 09:23 AM
Naty1

6 
2,163 
The Gpartiy of the pion is 1, which is rotation in isospin space around yaxis by angle \pi followed by...

Feb1909 07:37 AM
malawi_glenn

1 
1,773 
All neutrinos are left handed and all anti neutrinos are right handed.so,it should be lorentz invariant and travel at...

Feb2109 03:02 PM
Vanadium 50

7 
3,101 
Hello
I am trying to understand how one sees that particles are propagated forward in time and antiparticles...

Feb2609 09:34 AM
Deathless

10 
2,696 
I need some help in appreciating this consensus.
We are told the following things:
 that we have antielectrons,...

Feb2109 03:31 AM
Phrak

7 
1,318 
Hello, i tried to evaluate this particular little guy:
\text{Tr} (\gamma ^0 p_\mu \gamma ^\mu \gamma ^0 q_\nu...

Feb1909 03:35 PM
CarlB

4 
2,991 
Is it correct that Pu cannot be found in nature?
What I mean acctually is that while Uranium can be mined, Pu from...

Feb2109 03:57 PM
Astronuc

3 
1,217 
In Lorentz group in QFT, why the trace of the symmetric secondRank tensor S^{\mu\nu} is defined as follows?
...

Feb2509 04:15 AM
PRB147

5 
2,902 
well, thats the question. They both have the same queark structure. (udd). is it only their different bound states the...

Feb2509 08:28 PM
praharmitra

3 
2,176 
Wikipedia said U238 is better with capturing fast neutrons than slow neutrons. shouldn't it be the other way round? ...

Feb2509 09:45 AM
malawi_glenn

3 
2,704 
Hi, can someone please help me?
how do you calculate the binding enery of D2 in MeV? and binding energy per...

Feb2609 09:18 AM
malawi_glenn

1 
1,517 