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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 62,442
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 25,917
I can't seem to find the mass of an anti electron neutrino in MeV. I found that in beta radiation one down quark...
Y 04:34 PM
8 1,231
As is well known, the charges through which particles interact scale with the energy in QFT. What I was wondering is:...
Y 07:22 AM
10 301
A 100 mg sample of magnesium-27 decays by 7% of its previous mass every minute. Determine its half-life and start the...
Aug29-14 07:26 PM
Meir Achuz
5 181
In the page http://en.wikiped, under Shortcomings of...
Aug29-14 01:57 PM
1 200
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How would one calculate the velocity of a 1MeV neutron?? I tried the following the attached formula for V/C but E...
Aug27-14 05:03 PM
5 403
I am wondering how Muons are manufactured. Wikipedia says they're the decay products of cosmic rays, and that...
Aug27-14 05:00 PM
7 254
I know how the canal rays are produced. As I looked from wikipedia; "The process by which anode rays are formed in...
Aug27-14 04:55 PM
4 300
What is difference between beta particle and electron? I mean in spin, mass or other properties.
Aug27-14 04:47 PM
23 576
I am curious as to what would happen if you took something that was as cold as you can get and mixed it with something...
Aug27-14 02:54 PM
2 209
What is nuclear evaporation (e.g. proton or neutron evaporation)? Someone can explain? Thank you very much, Matt
Aug25-14 03:28 PM
2 286
Hello to everyone, I got a little bit confused between the coupling constant g_W and the strength parameter...
Aug25-14 01:59 PM
2 264
Hi all, I were wonder how the particles which consisting of four quarks like Z(4430) state ( ##c\bar{c}d\bar{u}## )...
Aug25-14 12:35 PM
2 332
In Chapter IV.3 of Quantum Field Theory in a Nutshell] by A. Zee (2nd Edition), there is a section titled "Wisdom of...
Aug25-14 03:10 AM
6 400
I want a book on particle physics which contains lots of theoretical calculations.All books recommended in my class...
Aug24-14 08:32 PM
4 441
Hi Based on what I know (it might be wrong) properties of nuclei are calculated based on the different (simplified)...
Aug24-14 03:04 PM
Bjorken X
7 441
Hi there, I need to draw the Feynman graphs for D→KK meson . I would be appreciate if anyone can help me. Thank you...
Aug24-14 12:39 PM
5 372
Sorry for my questions, (it does seem like QFT triggers quite a lot of questions :-D). Anyway, on page 103 (it has...
Aug23-14 08:32 PM
14 2,290
Can actually muons interact and give a signal while they go through the Hadron Calorimeter of the ATLAS? I think in...
Aug23-14 06:42 PM
10 442
To anyone new to the field of nuclear physics, the units are positively nonplussing. For example, I have just...
Aug23-14 07:46 AM
Vanadium 50
1 244
Hello, I am interested in computing the optimal depth of a copper absorber for Sr-90 decay electrons. I want to find...
Aug23-14 04:44 AM
2 318
Hey gang, I'm re-working my way through gauge theory, and I've what may be a silly question. Promotion of...
Aug22-14 12:40 PM
7 395
Hi, I have been getting a little confused; the text book (and from what i can see on-line) are saying that Hadrons...
Aug21-14 05:57 PM
6 302
How W- boson decay into electron and anti neutrino?
Aug21-14 10:37 AM
4 322
A gauge field W_\mu is known to transform as W_\mu\to W'_\mu=UW_\mu U^{-1} +(\partial_\mu U)U^{-1} under a...
Aug20-14 10:31 AM
8 431
The reason why there is far more matter than anti-matter in our universe is because we are going forward in time. But...
Aug19-14 02:09 PM
2 350
Hi, I have a question in Srednicki's QFT textbook. In p.460 section 75(about Chiral gauge theory), it says "In...
Aug19-14 01:08 PM
6 346
Hello, Is there a quantum mechanical reason why elements 119+ might not exist? i.e. would the crazy orbitals...
Aug18-14 11:42 PM
9 487
It is possible to introduce the gauge field in a QFT purely on geometric arguments. For simplicity, consider QED, only...
Aug18-14 03:50 PM
1 517
I learned that Pauli principle says two fermions cannot be same place than how we can collide two protons actually its...
Aug17-14 06:22 PM
5 545
I am looking at the structure of protons, and in my script, when they define the Parton Distribution Functions of all...
Aug16-14 06:06 PM
9 590
We know that graviton spin is 2 so other lepton and quarks spin is 1/2 I am confused because If Graviton and a quark...
Aug16-14 09:30 AM
15 503
Looking at the attachment, I see that the scalar potential coming from the D-term of the Higgs sector is given as...
Aug16-14 08:35 AM
Greg Bernhardt
1 697
At the end of spontaneous symmetry breaking I get these mass terms: ...
Aug15-14 04:16 PM
2 466
The Monte Carlo simulation is a very important tool in particle physics specially to tune in the preciseness of the...
Aug14-14 03:10 PM
4 1,061
I am confused about the very step from Eq.(14) to Eq.(15) in the paper There...
Aug13-14 10:17 PM
Greg Bernhardt
1 503
Hi folks, I am looking a bit at the phenomenon of S-duality (as a bit of an amateur) and looking at the literature...
Aug13-14 10:17 PM
Greg Bernhardt
1 449
I read in the textbook which says that, according to the usual definition the absolute value of ##n^\mu T_{\mu\nu}##...
Aug13-14 05:09 PM
8 590
Can anyone suggest me a good reference for path integrals (QFT), apart from peskin.
Aug12-14 12:23 AM
12 830
A paper I'm reading says "Our starting point is the SU(N) generalization of the quantum Heisenberg model:...
Aug11-14 08:16 AM
Greg Bernhardt
1 644

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