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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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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 34,127
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 20,989
http://physicsweb.org/articles/news/9/7/8/1 Strangely enough, while it looks similar, the experiment is actually...
Jul18-05 06:57 PM
Hans de Vries
2 1,241
What actually holds nucleons together? Is it gluons from quarks (ie the strong force), or the mass defecit in total...
Jun29-09 09:30 PM
tonyp1001
7 1,241
According to fermilab link http://www.fnal.gov/pub/inquiring/questions/antimatter1.html Proton antiproton...
Jan17-11 03:18 PM
kaksmet
1 1,241
While working out a problem I got a result which gave rise to this doubt regarding value of action functional. Suppose...
Jun23-08 07:35 AM
Lester
3 1,240
I have a couple of questions about the standard model: 1.) I read somewhere that the standard model describes 3...
Dec25-08 11:44 AM
blechman
6 1,240
Ok, well I'm sorry if this is the wrong section but it has to do with energy and nuclear physics. I have to present...
Mar11-09 06:31 PM
Bob S
3 1,240
Dear Experimental Particle Physicist, I have a simple question on how to calculate the Acc value from a MC dataset....
Aug15-09 12:55 PM
penguindecay
8 1,240
Why does an matter-antimatter pair annihilate each other instead of "sticking" together (i.e. like ordinary matter...
Feb14-10 08:59 PM
quantumkiko
3 1,240
this is the first time for me to prepare or thinking about the experiment which will be taken on the accerlerator. ...
Aug11-04 02:26 AM
annaph
4 1,239
Back on lecture about Standard model, professor said that original Weinberg-Salam-Glashow theory had to be augmented...
Jun29-08 12:27 AM
ismaili
3 1,239
I am just starting to learn quantum field theory. I'm still an undergraduate but I love particle physics and I want to...
Jan14-12 12:02 PM
spacelike
5 1,239
Are there any labs or private companies that can run particle beam simulations for a fee? If there are, any...
Sep8-12 06:06 PM
gbz
2 1,237
I was wonder what you felt the important experimental discoveries in high energy physics over the past twenty five...
Jan26-07 02:01 AM
vanesch
4 1,236
hi I have this question, I need your help: If the photon had mass "m" , show that the Gauss' law would no...
May6-07 03:54 PM
Meir Achuz
1 1,235
I'm looking for a book written for non-scientists that has details about axions. As far as I know, they are particles...
Apr12-10 12:56 AM
ansgar
5 1,235
Hey guys, I have a question for the particle physicists from an astronomer's point of view. First of all, with...
Feb6-09 05:33 AM
malawi_glenn
1 1,234
An up quark has a smaller mass than a down quark. Is it possible that an up quark is made from 2 antidowns with...
Apr25-05 08:38 PM
Spin_Network
4 1,233
Has anyone seen this yet?
Oct12-05 07:57 PM
cscott
0 1,233
I am currently writing a talk on CERN that is aimed at non-physicists, however I am finding it difficult to try and...
Nov23-08 01:22 PM
Shomy
7 1,233
I'm studying the \tau \rightarrow \rho \; \nu_{\tau} decay. I'm asked to calculate the decay width, using a...
Jun21-13 08:37 AM
GWSguy
2 1,233
How is it that the calculated Fermi energy of neutrons and protons in a heavy nucleus are different, but it's observed...
Mar17-13 02:56 PM
gildomar
6 1,232
I've been thinking about dark matter, WIMPs and neutrinos, and why these particles would not interact with matter...
Jun4-13 08:45 AM
llynne
5 1,229
for beta decay n --> p + e- + antineutrino since neutron has quarks udd while proton has uud, only the d changes...
Apr21-07 05:49 PM
AlphaNumeric
1 1,229
https://particle.phys.uvic.ca/twiki/pub/Main/AlisonFaulkner/Drell-Yan.jpg The Feynman diagram for Drell Yan has a...
Jan30-13 10:46 AM
jtbell
10 1,229
I have read that charge is supposed to be invariant under time reversal. Now, if I consider two like charges...
Apr23-10 03:11 AM
krishna mohan
2 1,228
Sorry if this question is too elementary (no pun intended) for this forum. If stellar fusion of iron takes more...
Nov4-10 10:55 AM
NobodySpecial
3 1,228
In the experiments, researchers fired a rare isotope of calcium at a target made from americium. The new element 115...
Feb2-04 07:00 PM
Orion1
0 1,227
For example, the right-handed sneutrino. It can decay into both (s)leptons and anti-(s)leptons, so it is also the...
Mar22-11 04:45 AM
Bill_K
3 1,227
Hello, This is my first post and I'm by no means a professional, but I am trying to sort out my understanding of...
Jun6-12 02:55 PM
mathman
1 1,227
I have difficult on finding the numbers of neutrons or protons can occupy the following energy states: (1g), (g 9/2)...
Mar1-06 12:46 PM
kidia
0 1,226
How do Majorana and Dirac neutrinos differ?
Apr10-11 11:37 AM
ParticleGrl
4 1,226
Two questions: 1)Why the velocity spectra of alpha rays is lineal? 2)What is the form of the Bragg curves for the...
Apr3-08 01:17 AM
Alexitron
0 1,225
Where can I get reliable information on the cross section of various substances: boric acid, O2, Uranium, water, etc?
Oct16-09 10:22 PM
Bob S
1 1,225
Hi all, me again! :rolleyes: I'm trying to calculate the current created when an alpha particle strikes a silicon...
Dec4-11 01:55 PM
neural_jam
0 1,225
I've viewed lots of questions on the internet of this nature and almost all of them dodged the question or simply gave...
Jul26-13 10:00 AM
snorkack
3 1,225
hi, see my diagram here, is my "neutron gun" correct, or have i made mistakes? what will happen to the "uranium...
Nov29-10 06:47 AM
askAphysicist
1 1,224
Last week I was watching events at the LHC at this screen: http://lhc.web.cern.ch/lhc/ when something happened and...
Nov5-10 08:41 AM
Vanadium 50
1 1,223
Could someone please give me some references or the name of the theory for gauge theories using 'nice' gauge...
Jun1-05 11:30 AM
Cinquero
4 1,222
Hi, I'm just reading about the group SL(2,C). In the book that I'm using(Jones, groups reps and physics), he...
Sep5-10 09:51 AM
LAHLH
3 1,222
Hi, I have been trying to find out about the upsilon meson (the bottom-antibottom quark pairing) for a piece of work...
Nov14-10 04:37 PM
Vanadium 50
3 1,222

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