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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
187 58,931
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
1 25,204
I was wonder what you felt the important experimental discoveries in high energy physics over the past twenty five...
Jan26-07 02:01 AM
4 1,289
The wait is finally over? See it live at (~ 11am April 07, Chicago time) 11:00 to 12:30 CDT (16:00:00 to 17:30:00...
Apr13-07 12:42 PM
3 1,289
Hello everybody, I investigate polycarbonate foils (makrofol) of 90 μm thickness irradiated by U-ions with a charge...
Nov24-11 10:23 AM
0 1,289
I have a smal brain but am trying to help an elderly gentleman (who doesn't speak too good English) with his theories....
Sep29-04 06:47 PM
4 1,288
If there is createn a virtual pair (anti particle A and its particle B) in vacuum what are they doing in their life...
Mar5-05 12:12 PM
5 1,288
Hello all, my teacher assigned a problem related to the yang-mills equation in my general relativity class and I just...
Jul11-13 08:49 AM
6 1,288
How do I find the radius of the nucleus if given the mass? I am asked to compare it with the value found using the...
Apr8-13 08:59 AM
4 1,288
Hi, this is probably pretty simple but it's puzzling me... In neutrino oscillation, you produce and detect...
Sep6-13 07:12 PM
1 1,288
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
4 1,287
a proton is given a radius...i think its ~10e-15 since a proton is uud is this "radius" like a electron orbital...
May8-05 10:49 PM
5 1,287
Wen local bosonic emergent string net model states he can give rise to electrons and photons, quarks and gluons but...
Oct26-09 06:54 PM
5 1,286
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
3 1,286
Hi I've been reading that muons are supposedly leptons (elementary particles), in the past confused for mesons...
Apr1-12 05:31 PM
Bob S
4 1,286
I'm having some trouble deriving equation 6.44 on p.191 of Peskin and Schroeder (my book is the fifth printing,...
May15-13 01:31 PM
6 1,285
I was reading about this experiment and collision and I a proton really made up of this many sub...
Apr6-12 10:54 AM
Mark M
4 1,285
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
1 1,284
Hi I'm trying to understand how the sum over spin polarizations is treated when using the Narrow Width...
Jan29-13 08:15 AM
6 1,284
Why is it that those atoms, with atomic numbers of 90 and 92 have much, much longer half lives than atoms like Radon,...
Feb24-13 05:48 PM
8 1,284
For an Ap Physics Homework assignment our teacher had us calculate the Nuclear Strong Force for a Helium nucleus with...
Sep12-13 06:34 PM
1 1,284
Why does alpha decay emit a helium nucleus.Why not a proton or gamma rays. Please help me understand the science...
Jul29-13 01:52 PM
4 1,282
What happens when the electron is removed from hydrogen? Is it just a proton at that point or does it become hydron...
Jun8-07 01:33 PM
1 1,281
All right, it is now officially released : Doubt is cast on pentaquarks Another dedicated experiment in the same lab...
May5-05 11:34 AM
8 1,280
If i remember correctly from astrophysics. Neutrinos are said to be relatively uninteractive. Now is that statement...
May24-05 10:01 AM
Meir Achuz
6 1,280
How do you determine in a particle interaction which force is responsible? For example a K- meson is found to...
Oct5-11 11:38 AM
3 1,280
If I just know the energy range of it is 10-35 MeV, and they can interact with detector for 10 seconds, how to deduce...
Feb27-12 08:21 PM
1 1,280
I recently saw the Evaluated Nuclear Data File provided by Brookhaven national lab., where in i saw the plot of...
Mar9-12 12:05 PM
5 1,280
It seems strange that a neutron wouldn't have a function within an atom other than obtain mass, a neutral charge, and...
May2-08 06:20 PM
4 1,279
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
7 1,279
Hello, The Feynman graph of muon decay is...
Mar22-12 04:32 PM
Vanadium 50
6 1,279
group theory is an integral part of particle physics and one needs a good understanding of this before one switches on...
Oct14-05 07:33 AM
2 1,278
Back on lecture about Standard model, professor said that original Weinberg-Salam-Glashow theory had to be augmented...
Jun29-08 12:27 AM
3 1,278
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
0 1,278
What kind of force mediates the reaction: K- + alpha(ppnn) -> pi- + "hypernucleus"(ppn lambda) s(u) + (uud + uud +...
Feb22-12 03:36 PM
1 1,278
Hi, A symmetric 4x4 matrix has 10 independent components. Let's say that matrix describes graviton h_mu_nu. In...
Apr17-12 03:55 PM
0 1,278
just thinking cross sections here. a neutron that is freed as a result of a fission of pure U235. travels @c/10(fast!)...
May4-12 07:02 PM
3 1,278
I had always assumed that the simplest possible standard model Higgs particle had isospin 0, but when I tried to...
Jul9-12 06:33 AM
2 1,278
From here:...
Dec18-12 04:56 PM
9 1,278
; Can someone explain to me (in layman's terms,) how it might be possible to associate the interactions of the...
Mar7-12 10:22 AM
7 1,277
I would like to ask you 2 completely separate questions... Since both concern the W,Zs I don't want to create more...
Nov20-13 09:50 AM
14 1,277
Say we have one spin-less electron in a box in the ground state. Say we have dials on the outside of the box that can...
Mar25-12 04:32 PM
4 1,276

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