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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 34,673
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 21,118
Hi everybody, I have a experimental question. In cross-section calculation of production of particles (say D), one...
Apr22-11 01:21 PM
Manojg
2 1,589
I'm thinking about the thermodynamics of electron capture: p + e --- n + v(e) + energy (That is, proton absorbs...
Apr22-11 03:44 PM
CutterMcCool
2 2,340
The following rumor has been spreading around the internet quite rapidly: ...
Apr24-11 05:22 AM
Vanadium 50
2 2,233
Why some say that the existence of magnetic monopoles would violate the conservation of energy law?
Apr29-11 04:45 PM
Vanadium 50
2 984
Y is trapping anti-matter so difficult...if we create a vacuum and trap the particles via magnetic field y will it...
May2-11 04:46 PM
Drakkith
2 855
I'm not always on the same computer, often times I'm using my phone to look for answers when doing physics on the go. ...
May12-11 08:46 PM
GDogg
2 1,702
I have to give a brief presentation on the evidence for pairing in atomic nuclei. One of the items of evidence I will...
May7-11 12:25 PM
m.e.t.a.
2 1,501
I recently read a post which stated that the particle-antiparticle pair can be created by the interaction of photons ...
May11-11 11:40 AM
A. Neumaier
2 1,751
I was reading over some nuclear physics and I came across the binding energy of a nucleus. The equation is...
May21-11 05:51 AM
smith345
2 1,426
Doing some examples I came across the question: Can the following processes occur and if not, why not? Draw...
May20-11 01:18 AM
malcomson
2 1,065
What do people mean when they say that mass renormalization of scalar field theories confronts us with a fine tuning...
May24-11 03:33 AM
Lapidus
2 1,394
I came across this term "activity" in text regarding radioactive decay and half lives. It is defined as "number of...
May24-11 08:03 AM
jtbell
2 4,613
If I could be inside the LHC Atlas detector during a proton bean collision what would I see? Would there be a huge...
May25-11 01:43 PM
Bill_K
2 1,020
Am I right in thinking Fermi type beta decay is helicity suppressed, due to the necessity of having a right handed...
May29-11 04:45 PM
JesseC
2 2,501
I've taken a screen shot of the question http://img803.imageshack.us/img803/753/73615252.png I know the answer (I've...
May30-11 02:30 PM
Physicsist
2 1,064
Sorry if I posted this in the wrong forum, to me it looks like this forum is for high energy, nuclear, OR particle...
Jun4-11 02:42 PM
Skyler0114
2 1,416
When a massive nucleus splits, it forms two smaller fragments. For Uranium, we have A=235, and the typical fragments...
Jun6-11 12:18 PM
Bill_K
2 1,191
Hello Everyone, I'm doing some research on meson decays, I was going to be attempting to use the 't Hooft Model. ...
Jun8-11 02:22 PM
silmaril89
2 1,672
Hi, I've studied a bit nuclear physics, and I don't get how the mathematics under the creation and destruction of...
Jun9-11 02:23 PM
Bill_K
2 1,257
OK, here's a question that's unusual in that it regards a particle state that's pretty much taken to be nonexistent. ...
Jun15-11 08:41 AM
Zarathustra0
2 1,949
Can anybody tell me if any research is currently being carried out,or planned,to investigate further high energy...
Jun17-11 05:43 PM
Dadface
2 2,804
I was reading WikiPedia's entry on this, and there was one paragraph that surprised me: E = mc2 has sometimes been...
Jun19-11 10:51 PM
Sup_Principia
2 1,805
I'm trying to understand why the Bc meson (anti b and c) has a lifetime of 0.46 picoseconds whilst the Bs, B+ and B-...
Jun22-11 03:53 PM
Vanadium 50
2 1,680
Hi Forum! I have got a question about the induced scalar potential. I will present the problem from beginning. ...
Jul5-11 01:36 PM
nykon
2 1,095
Hey...i'm studying the reaction neutrino+antineutrino -> W(+) + W(-) but i dont understand which are the relevant f....
Jul7-11 02:28 PM
Parlyne
2 1,597
Dear all, Dimensional regularization is a very important technique to remove the divergence from momentum integrals....
Jul16-11 07:35 AM
kassem84
2 2,044
I am reading a nice book (Quarks and Leptons, by Halzen and Martin) about particle physics. It states that the general...
Jul16-11 06:27 AM
Matthaeus
2 1,440
Bosoms (energy'ish) are 1 spin integers, Fermions (mass'ish) are 1/2 spin integers. KE=1/2MV^2 E=1MV^2 I've...
Jul27-11 09:59 AM
Dropout
2 1,654
I'm starting to read up a bit on QFT, starting with Griffith's intro to elementary particles book. I've gone through...
Jul26-11 09:21 PM
-dove
2 2,752
Can the energy in the fields that make up an proton be fraction-ed into a pie chart? Don't we have quark, gluon,...
Aug2-11 11:44 AM
Spinnor
2 2,509
Hello, how can i prove by "fierzing" twice that (\bar{\lambda} \gamma_5 \lambda) \lambda = - (\bar{\lambda}...
Aug4-11 08:08 AM
yola
2 3,549
I would be more of a theoretician, but recently I have been somewhat interested in trying to learn about recent...
Aug8-11 11:08 AM
daschaich
2 1,849
Hi all, I'm trying to calculate the Feynman Rules for the effective electroweak chiral Lagrangian. For example,...
Aug9-11 01:45 AM
daschaich
2 2,640
Neutrinos are emitted with corresponding leptons (e, mu ,tau) and thats a conservations law(?) what about when...
Aug18-11 02:03 PM
rkrsnan
2 2,793
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 2,630
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 3,180
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 1,885
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 1,554
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 1,684
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 1,238

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