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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 34,342
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 21,035
I'm struggling to get to grips with the idea that quarks cannot be observed as isolated particles due to confinement...
Dec11-08 03:33 PM
malawi_glenn
2 1,338
Hi, guys! I am a high school senior, I would like to ask you a few questions about how to measure the released energy...
Nov23-08 07:05 PM
boardrfolife
2 3,233
Amid the petabytes of information about to stream forth from Europe, how will Physics know if it has been wrong about...
Sep11-08 01:39 AM
atyy
2 1,277
The energy of a proton can be calculated using Einstein's relativistic energy equation (kinetic + rest energy). The...
Sep12-08 11:09 PM
jtbell
2 3,355
I spend my weekends reading up on quantum physics. Mostly these forums. I find myself flooded with jargon. So I have a...
Sep14-08 11:08 PM
Xezlec
2 1,257
Hi, I don't know if this is the right place to post. Anyway, the fact is this: ...
Sep26-08 10:29 AM
mgb2
2 1,513
Hi guys, I am doing a dissertation on one of these topics and wondered if anyone knows of some good books that may...
Sep26-08 10:58 AM
karnten07
2 1,784
What is wrong in this reasoning about CPT symmetries? Spatial inversion P preserves spin and inverses velocity....
Sep27-08 02:43 AM
franoisbelfor
2 1,522
not sure if this belongs in cosmology forum so move it if necessary. is a positron the same thing as an anitmatter...
Oct1-08 05:13 PM
clem
2 1,415
Hi! I have encountered many differential crossections: \frac{d\sigma}{dE_+d\Omega _+ d \Omega _-} (Pair...
Oct3-08 08:30 AM
malawi_glenn
2 1,276
So I was doing physics homework today, and wound up spending a couple hours on wikipedia, browsing through topics far...
Oct15-08 05:42 PM
jtbell
2 2,002
HI all,a question was asked by my teacher that "if nuclear forces would be spin independent then how many types of...
Oct20-08 07:17 AM
GAGS
2 1,121
hello all It's probably already been noted but... have people seen the paper hep/th-0810.3328? "A simple...
Oct29-08 11:09 PM
landscape
2 2,174
Hello all, What is Mean By Parity Conservation?.Dont tell That When Parity Of L.H.S and R.H.S Become Equal.I want to...
Nov2-08 10:45 AM
blechman
2 2,208
If I have a product like \bar\ psi\gamma^\mu\psi\bar\psi\gamma_\mu\psi how can i rearrange...
Oct30-08 06:04 AM
Lester
2 3,431
This is pretty new. Perhaps detector effect, perhaps not. http://arxiv.org/abs/0810.5357
Oct31-08 01:48 PM
BenTheMan
2 1,977
I don't really understand why neutrino oscillation occurs so I looked it up on wikipedia:...
Nov13-08 04:53 PM
Unredeemed
2 1,347
Neutrinos are elementary particles that have the ability to pass through any matter. Billions of them pass through our...
Nov16-08 06:35 AM
malawi_glenn
2 5,479
Using electron-neutron scattering I'm trying to find out how the three quarks (udd) behave inside the neutron....
Nov19-08 02:03 PM
humanino
2 1,846
Hi, I'm very new on Group Theory, and lacking of easy to understand document on it. I cant get Representation of...
Nov22-08 02:49 PM
torehan
2 6,478
If photons are their own antimatter, then why don't they just annihilate? Also, do neutrons have antimatter, or is it...
Dec13-08 07:51 AM
Haibara Ai
2 1,787
I have a particle physics assignment due and I am confused as how to read this table. Any help is greatly appreciated
Dec17-08 10:09 AM
Vanadium 50
2 6,446
I am trying to understand the analogy between a particle resonance and the resonance in a driven, damped classical...
Dec29-08 01:29 PM
hamster143
2 1,573
If nucleus A decays to nucleus B in rate a, and B decays to C in rate b, and C is decaying at the rate c. To setup a...
Dec29-08 10:10 PM
KFC
2 1,754
Hello Ive come across some approximate cross section formulas during a course of particle physics. And in a reaction...
Jan11-09 05:24 PM
malawi_glenn
2 1,013
Hi. I was reading Griffiths page 289 and I wasn't sure how the transition from Eq. (8.45) to (8.46) was allowed. What...
Apr9-14 07:20 PM
spookyfish
2 268
So i have a question regarding a homework question i'm working on which suggest a neutral pion travelling with...
Apr11-14 05:55 PM
mfb
2 260
In SM, people say the ##SU(2)\otimes U(1)## theory unify the EM and weak interaction. I understand that the two...
Apr10-14 12:35 PM
clem
2 302
I'm looking at charmonium and its decays. Given a list of data on the charmonium states I'm asked to say why ψ'' has...
Apr14-14 07:20 AM
Einj
2 288
Hi - this is my first post. I'm a recent PhD particle experimentalist; though I'm trying to get a better...
Jan20-09 05:15 PM
Sideways
1 2,625
My first post here, so Hello Everyone! I searched the forum for info but unfortunately I couldnt find it. I am...
Jan15-09 12:28 PM
mgb_phys
1 3,179
how sure are we that heavy nuclei are less massive than the sum of their constituent particles? the masses of atoms...
Jan28-09 03:41 AM
malawi_glenn
1 1,883
I can picture gravity as the warping of spacetime as postulated by GR but I have not heard a descriptive explanation...
Jan30-09 11:03 PM
jtbell
1 1,547
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...
Jan29-09 09:29 AM
malawi_glenn
1 1,682
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 1,236
Why is the chiral symmetry breakdown determined for the vector/axial current as: V =...
Apr9-14 05:07 PM
The_Duck
1 269
Hi all, I'd like to know how the chiral symmetry protect the electron mass in the one-loop calculation of the...
Apr16-14 10:09 AM
andrien
1 226
Hi, I am just learning some materials and struggling to find what the other octet is. I know the following: 3...
Y 09:37 AM
Bill_K
1 189
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What is the Decay Width of a particle and how is it related to the particle's lifetime ?
Y 06:19 AM
UltrafastPED
1 118

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