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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 54,512
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Before posting anything, please review the Physics Forums Global Guidelines. If you are seeking help with a...
Feb23-13 08:41 AM
1 24,611
Hi Just a quick question that I have been wondering about ... how do nucleons fill energy levels, and what is the...
Nov8-13 06:26 AM
1 918
Hi, experts I got a very naive question. I read the following sentence in a paper: "New results on the production of...
Nov7-13 07:36 PM
5 905
Why c - 14 is radio active though n/p ratio is less than 1.5?
Nov6-13 08:21 AM
7 841
Sorry - a very vague question: Could a superconductor be used to detect dark matter? The dark matter might...
Nov5-13 08:16 AM
2 803
Imagine that two electrons interact by exchanging a virtual photon. Electron A gains momentum ##-\vec{p}## and...
Nov5-13 07:43 AM
2 864
Hi. I am confused about something related to the creation of particles/antiparticles in a complex scalar field. I...
Nov4-13 05:52 PM
2 877
The first question is why it is sometimes called the "Higgs meson"?-even by its discoverers, see recent controversy...
Nov4-13 08:12 AM
10 1,398
Veltman states that the cosmological constant in the Higgs model takes the form C= m2M2 / 8g2 , which is way too...
Nov3-13 04:22 PM
26 2,745
Hi all, I'm trying to calculate the Boltzmann factor for a fusion reaction, however I can't find the activation...
Nov3-13 04:02 PM
0 819
Hi, I'm doing some coursework on nuclear fusion, and am trying to calculate the energy released by fusing a tritium...
Nov3-13 10:21 AM
2 894
As far as I can tell Tevatron was able to identify relative to background an excess in decay processes in the range...
Nov1-13 10:29 PM
3 1,001
Electron is a charge, what means concrete configuration of electric field, growing to infinity in the center (if it...
Nov1-13 02:28 PM
23 2,311
The detection of spin in Hadrons and Leptons is done through magnetism, a spin 1/2 particle has two states in a...
Oct30-13 03:50 PM
7 1,098
Has anybody thought of it before? I mean even if it were energetically expensive to harness it it might actually...
Oct30-13 02:52 PM
38 3,856
Do protons and neutrons have excited states? This page shows some simulated shapes of protons....
Oct30-13 10:30 AM
5 973
Good afternoon fellow scientists,i have a small problem in evaluating the propagator for the complex Klein-Gordon...
Oct30-13 08:40 AM
6 1,078
Hi people, I have one question, leptons and quarks are electromagnetically charged particles. Is there an...
Oct30-13 03:46 AM
8 963
Qhy does SO(n) have the same number of dimensions of O(n), whereas SU(n) reduces the dimensions of U(n)? Isn't the...
Oct29-13 08:55 AM
3 788
Hi Folks -- can anyone direct me to a table online which lists the wavefunctions for the hadrons in terms of their...
Oct28-13 01:18 PM
4 757
Really quick question. In a graph like this: Source ...
Oct27-13 07:40 PM
6 1,014
The quark content of the neutral pion is listed as \frac{u\overline{u}-d\overline{d}}{\sqrt{2}} What is the proper way...
Oct27-13 05:03 PM
4 926
Hello everyone, I have a question about virtual corrections of an external fermion line. According to the LSZ...
Oct27-13 05:47 AM
2 1,066
Hi all, Can anyone tell me whether the counterterms introduced in renormalized perturbation theory (see e.g....
Oct26-13 08:03 PM
7 1,290
Hi, I read about Noether's theorem, which states that if, under a continuous transformation, the Lagrangian is...
Oct26-13 03:30 PM
1 1,239
This is probably a minor point, but I have seen in some QFT texts the Euler-Lagrange equation for a scalar field, ...
Oct25-13 10:46 AM
4 934
Peter Higgs is going to get a Nobel prize for physics, since Higgs boson's existence was confirmed in the experiments...
Oct24-13 06:30 PM
9 1,078
The charts at CERN show calculations that a 126 GeV Higgs boson is expected to decay to a bottom/anti-bottom quark...
Oct23-13 05:24 PM
2 905
The University of Edinburgh is offering a massive online open course on "The Discovery of the Higgs Boson" to the...
Oct23-13 08:20 AM
0 822
With the recent experimental evidence that the Higgs boson likely does exist, and that the Higgs field may well be...
Oct22-13 01:33 AM
king vitamin
17 9,098
What is the Higgs boson's mechanism for giving mass?
Oct21-13 07:18 PM
29 10,789
My question concerns the delta++ baryon. I understand that the rest mass of quarks makes up a very small percentage...
Oct21-13 12:17 PM
6 1,008
Whenever people begin to explain the nuclear strong force, they relate it to electricity. I was wondering if color...
Oct20-13 09:04 PM
11 1,066
U = Th + alpha rays 92p 90p 146n 144n I have heard that if...
Oct20-13 03:25 PM
11 6,146
Hi all, I'd like to more understand what is the difference between when we draw the differential cross section ...
Oct20-13 04:24 AM
0 729
I have been looking at the Beta decay process and can't see how energy is conserved. The W boson, for example, is many...
Oct20-13 03:39 AM
8 984
If the Higgs is around 126 GeV, why was the LHC required to find it, when the Tevatron is capable of 1 TeV collisions...
Oct19-13 07:27 PM
3 786
As the title says- what is it that makes all mesons unstable? I know some quarks are less stable than others...
Oct18-13 02:13 PM
10 4,171
Hi everyone, I'm an engineer and not a physicist, so forgive me if something sounds stupid. Question: Is it...
Oct18-13 12:21 PM
3 816
When we derive the Bethe-Salpeter equation, we have the relations of mass of constitute m, transverse momentum, q-hat...
Oct18-13 02:10 AM
0 736
Under the Higgs in wiki it says "Another possibility is for the Higgs to split into a pair of massive gauge bosons....
Oct16-13 05:29 PM
4 1,689

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