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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
ChrisVer
187 62,261
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 25,869
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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
mfb
5 331
I am wondering how Muons are manufactured. Wikipedia says they're the decay products of cosmic rays, and that...
Aug27-14 05:00 PM
mfb
7 171
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
mfb
4 268
What is difference between beta particle and electron? I mean in spin, mass or other properties.
Aug27-14 04:47 PM
mfb
23 491
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
ChrisVer
2 156
What is nuclear evaporation (e.g. proton or neutron evaporation)? Someone can explain? Thank you very much, Matt
Aug25-14 03:28 PM
Matt_014
2 245
Hello to everyone, I got a little bit confused between the coupling constant g_W and the strength parameter...
Aug25-14 01:59 PM
Daaavde
2 226
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
Safinaz
2 302
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
mal4mac
6 367
I want a book on particle physics which contains lots of theoretical calculations.All books recommended in my class...
Aug24-14 08:32 PM
nrqed
4 411
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
7 402
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
ChrisVer
5 337
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
nrqed
14 2,260
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
mfb
10 410
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
1 213
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
Orodruin
2 280
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
ChrisVer
7 361
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
ChrisVer
6 275
How W- boson decay into electron and anti neutrino?
Aug21-14 10:37 AM
smk
4 288
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
The_Duck
8 401
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
berkeman
2 320
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
mkgsec
6 315
Hello, Is there a quantum mechanical reason why elements 119+ might not exist? i.e. would the crazy orbitals...
Aug18-14 11:42 PM
pierce15
9 458
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
The_Duck
1 494
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
UVCatastrophe
5 517
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
RGevo
9 562
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
mfb
15 470
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
1 672
At the end of spontaneous symmetry breaking I get these mass terms: ...
Aug15-14 04:16 PM
Orodruin
2 438
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
DrDanny
4 1,037
I am confused about the very step from Eq.(14) to Eq.(15) in the paper http://arxiv.org/pdf/hep-ph/0308157.pdf There...
Aug13-14 10:17 PM
Greg Bernhardt
1 483
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
1 423
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
Orodruin
8 563
Can anyone suggest me a good reference for path integrals (QFT), apart from peskin.
Aug12-14 12:23 AM
tom.stoer
12 801
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
1 616
So depleted uranium is mostly U-238 which can't sustain a chain reaction. If you were to compress depleted uranium to...
Aug10-14 11:19 AM
zyxwv99
22 2,487
The rapidity is defined as: y = \frac{1}{2} ln(\frac{E+p_z}{E-p_z}) and for a hard event (hard scattering...
Aug9-14 09:15 AM
mfb
1 448
Do you have any source where I can check for the neutralino (higgsino or chargino/bino -like) interaction processes?...
Aug9-14 07:50 AM
ChrisVer
8 524

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