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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
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 25,736
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 61,655
Dear All, I dont understand how/why Halzen Martin use J_em J_3 and introduced J_Y currents to build SU(2)*U(1)...
Aug23-08 12:06 PM
Angryphysicist
1 1,058
Hi, I've been trying to find information on neutrinos and the way that they are experimentally proven to exist. Most...
Aug23-08 12:06 PM
malawi_glenn
10 3,435
I've been a little out of touch recently, and I don't know what's going on out there. Haven't they started running...
Aug23-08 12:40 PM
belliott4488
1 1,912
I'm currently involved in a debate elsewhere with an EU proponent involving magnetic reconnection. The debate shifted...
Aug24-08 07:08 PM
derekmcd
4 1,452
Hello: In quantum field theory, there is the Klein-Gordon Equation that describes particles with Spin...
Aug25-08 04:54 PM
jostpuur
13 1,962
some have suggested that gravity can be unified with the nuclear force by introducing extra dimensions so that gravity...
Aug26-08 10:09 AM
humanino
22 2,297
Is there anything defined as temperature of sub-atomic particles?? Then,is it possible, by any means, to measure the...
Aug26-08 12:27 PM
Vanadium 50
1 1,790
I was discovering a way to focus a number of charged particles which has been accelerated by Van de Graff generator...
Aug26-08 11:46 PM
NERV
4 1,714
Hello: I've heard that quantum chromodynamics describes the strong interaction between quarks,...
Aug28-08 10:18 AM
humanino
9 2,195
Hello: The nucleons insede a nuclei, interact only with the closest nucleons, How does QCD explain...
Aug28-08 02:52 PM
malawi_glenn
1 2,110
Hello I am trying to understand the function of the Higgs bosun which appears to lend mass to other particles. But...
Aug29-08 09:29 AM
blechman
14 1,959
Hello: There are many kinds of particle detectors, could you please explain me how does a multiwire...
Aug29-08 12:48 PM
malawi_glenn
1 2,421
Hi: What's a gauge theory?, Is it just some kind of theory invariant with respect to some...
Aug29-08 12:55 PM
malawi_glenn
2 2,690
One interesting thing in quantum mechanics is that there are correlation effects which can manifest themselves as...
Aug30-08 09:40 AM
tomkeus
3 1,496
I am interested in physics. Everything about the universe excites me. I have a teeny tiny understanding of physics and...
Aug30-08 04:37 PM
malawi_glenn
1 1,585
Hi why scientists picked up proton for LHC?
Sep3-08 05:12 PM
Nick.M
9 1,499
http://www.lhcdefense.org/pdf/0808.1415v1.pdf I was buffled by this paper recently written by Rainer Plaga who...
Sep4-08 11:28 AM
chinatruth
0 1,224
Hi All, A small question: If I were to create a small vacuum electron beam device, the electrons have to pass...
Sep5-08 02:12 AM
knechtje
0 1,774
Dear PF I have very simple question…. I don’t understand something in A. Zee’s book Quantum field theory in a...
Sep5-08 03:07 AM
Neitrino
0 1,064
Hi Chaps, As I'm sure we all are, I'm literally jumping up and down with excitement about next weeks first beam...
Sep5-08 09:20 AM
Vanadium 50
4 2,074
if the magnetic field of an electron is thought of as being due to a current then the curl of the mugnetic field is...
Sep5-08 11:17 AM
granpa
2 1,422
I hear that in multiplicative renormalization,one only need to absorb all loop divergents on to bare parameters(mass...
Sep6-08 05:50 AM
ndung200790
0 1,546
Nice way to explore the Large Hadron Collider for the general public. ...
Sep7-08 12:51 PM
Hans de Vries
0 1,213
Hi: The electromagnetic and weak interactions were unified in what is called the electroweak...
Sep8-08 05:11 AM
ophase
2 1,206
Hello: I`ve heard that supersymmetry predicts new fundamental particles that may explain dark matter,...
Sep8-08 10:07 AM
humanino
7 1,829
Can anyone explain to me why the 3-rep of SU(3) gives 3\otimes 3 = \overline{3}\oplus 6 whereas for the 5 of...
Sep8-08 05:25 PM
samalkhaiat
9 4,029
I'm trying to understand a little more about current research in QCD. I don't understand what exactly people are...
Sep9-08 07:35 AM
Bobhawke
0 1,180
Is it true that they have negative kinetic energy; wouldn't this mean that they have imaginary velocities!?!...
Sep9-08 11:21 AM
malawi_glenn
3 1,162
Can we use Heisenberg's uncertainty relation to explain the working of high energy colliders? (Isn't it rather that...
Sep9-08 11:25 AM
koolmodee
9 1,240
http://en.wikipedia.org/wiki/Cosmic_ray I have a little bit of trouble writing an essay that relies on background...
Sep9-08 01:37 PM
giann_tee
5 1,931
Could somebody explain how an imaginary phase in some of the CKM matrix elements represents a CP-violation factor?
Sep9-08 09:20 PM
hamster143
1 1,345
Hi all, i want to ask use of scintillator. Actually what i studied that to convert highly energetic gamma rays, to...
Sep10-08 09:52 AM
malawi_glenn
1 1,264
Hi all,my question is on dynodes. For ex: in scintillation detector we ususally say that a visible photon when...
Sep10-08 10:00 AM
malawi_glenn
1 1,129
The Science Channel is running an hour program on the LHC. They make a statement that the pages and pages of...
Sep10-08 10:25 AM
Force1
5 1,840
This is a very uneducated question. So don't take it too seriously. I was thinking. The reason they're using beams of...
Sep10-08 01:26 PM
ZapperZ
2 1,359
What are your views on this? Assuming things continue to go all right what possible theoretical developments do you...
Sep10-08 03:25 PM
humanino
1 1,307
I mean, are the particles revealed or are they created? I got to thinking about this when I was reading about the LHC...
Sep10-08 07:10 PM
hamster143
5 2,564
I know that if a radioactive substance is heated, then the radioactivity is reduced because of the relativistic...
Sep10-08 09:36 PM
DiamondGeezer
4 6,635
prepare yourself for an incredibly stupid question. i dont even know if im posting this right. if im intruding on a...
Sep11-08 12:13 AM
hamster143
7 1,120
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 1,345

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