# High Energy, Nuclear, Particle Physics

- Properties, relationships, and interactions of subatomic particles. Exp. & theo. physics of nuclei & elementary particles
 Meta Thread / Thread Starter Last Post Replies Views Views: 66,458 Announcement: Follow us on social media and spread the word about PF! Jan16-12 Pinned: Higgs particle is 'found' ( 1 2 3 ... Last) 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 49,990 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 23,926 Greetings, currently I'm working with cosmic rays (merely researching, not so much as working) and now I have a... Aug18-10 06:54 PM Bob S 2 957 Hi, If anyone has a copy of this book, I'm just struggling to understand a point in the chapter about Lie Groups.... Aug31-10 01:50 PM LAHLH 2 1,495 Hi guys, If I have a \Sigma triplet of baryons, how do I calculate the EM and gravitational binding energy of these... Sep4-10 09:03 PM clem 2 1,484 Hey, I have been looking around for a good resource explaining the analytic properties of Feynman diagrams and... Sep6-10 06:35 AM Simon_Tyler 2 1,210 I am answering a question about a particle decaying into two other particles and one needs to find the momentum of the... Sep11-10 02:22 AM planesinspace 2 1,200 Hello, I didn't know where else to ask this, but I'm quite curious. What happens when two of the evanescent... Oct2-10 12:46 PM thepemberton 2 919 I have been given the impression that the weak force is what holds the neutron together (preventing it from decaying... Oct5-10 12:26 AM tom.stoer 2 1,643 Hi, very simple question: What is the parity of the anti neutral kaon? Oct3-10 03:18 AM MarkusNaslund19 2 2,034 hello there! your help is really appreciated. 1.For the Ruther alpha-particle scattering experiment, how come we... Oct3-10 01:07 PM Parlyne 2 1,024 How reactive is a proton? Could you have a "gas" or something of protons confined to small pipes without them reacting... Oct5-10 10:54 AM Bob S 2 980 I was given this as an extra-curricular activity... way over my understanding of physics, sophmore year undergraduate.... Oct7-10 11:01 AM godtripp 2 1,637 Why cant we tell the mass of electron neutrinos, mu neutrinos, and tau neutrinos? Oct13-10 12:37 AM Parlyne 2 1,344 Is it possible to measure the displacement of a single electron in an electric field? If so, how far down can we... Oct13-10 11:13 AM jonlg_uk 2 987 when nucleus capture the electron revolving in the shell? Oct19-10 11:36 AM Rajini 2 1,068 Gents, Is there such software package or something like that... when you input the lagrangian it gives you the... Oct14-10 05:25 PM Parlyne 2 785 hi, yesterday i had a discussion with some friends about the decays of pions which produced a few questions that we... Oct24-10 12:59 AM alsey42147 2 1,756 Im reading a paper about use of electron beams in oncology and it says: "The mechanism of neutron production in the... Oct30-10 08:31 AM lavster 2 785 can you tell me what's the frictional cooling method? it is one of general varional methods, i read it in some nuclear... Oct30-10 08:28 PM nuclei 2 843 Would the energy just be a multiple of how much bigger it is than electron? Oct30-10 06:58 PM Bob S 2 3,494 Hello, My knowledge on particle physics is very limited (halfway through my physics bachelor) but if I have to... Nov3-10 02:07 AM tom.stoer 2 1,260 Hi, I have a question about the relation between the propagator of a scalar field and the heat kernel. I'm not sure... Nov20-10 02:57 AM TriTertButoxy 2 1,358 This question is sparked by the research on lepton masses by Brannen, Kea, de Vries, Dave and others, but it is... Nov2-10 01:14 PM arivero 2 679 My question: do there exist particles similar to atomic nuclei, but made only of neutrons? If not, then why? I... Nov6-10 03:36 PM mathman 2 993 Hi! I would like some clarification about the straggeling phenomena, why the tip of the curve is pointy ( stiff )... Nov6-10 11:45 PM abotiz 2 1,581 Can someone give me a qualitative/handwaving argument of why much more W^+/- boson are produced in proton-antiproton... Nov12-10 05:46 PM Vanadium 50 2 1,088 Hi, I keep reading about particles being produced in certain interactions, but I'm not completely clear on what this... Nov8-10 06:19 PM jeebs 2 1,369 Hi, I'm having some trouble with the Cabibbo matrix. I get vaguely what it's about but there are things I don't... Nov17-10 12:27 AM tom.stoer 2 1,372 I assume it's possible to convert matter into energy, and vice versa. I assume the same is true for antimatter. I also... Nov20-10 06:39 PM neoslovakia 2 2,752 When I learned about Dirac's Equation, textbooks usually say that the earlier Klein-Gordon equation isn't linear in... Nov20-10 11:43 AM GeorgeRaetz 2 3,164 Does anyone know where I can find good tables for low energy nuclear processes? For example collisions to products... Nov21-10 12:49 PM Astronuc 2 1,301 Are collisions with the energy levels of LHC happening in our modern day Universe? Like at the core of stars or at the... Nov22-10 06:16 PM kahoon 2 1,038 In a 1964 publication Bruno Rossi describes an experiment where cosmic rays could penetrate dense materials. Finding... Nov27-10 04:28 PM hardhacker 2 1,376 Hi! I'm currently performing lots of research into the Higgs Boson. In many papers, when talking specifically about... Dec7-10 06:55 PM GreyBadger 2 2,289 Do anybody know where to get this journal online? Yad. Energia 4 (1976) 103......or it has another name in English? Dec5-10 12:39 AM thoms2543 2 847 Hi, I need to calculate an estimate of the reflected electron beam power in the form of back scattered electrons... Dec7-10 12:04 PM Bob S 2 1,685 Ive been searching for that and I cannot find it. Ive been looking for it, for example, in Wolfram Alpha`s list of... Dec8-10 06:48 PM Astronuc 2 967 The proton activation data file/s contain the target and product data plus the cross sections at a range of energies,... Dec8-10 12:23 PM benpalmer 2 829 The group SO(5) is relevant at times in particle physics. Can anybody please explain how to calculate the number of... Dec10-10 05:17 AM arroy_0205 2 2,000 how much energy is released during the fusion of proton and neutron? Dec11-10 01:50 PM Bob S 2 953 I'm reading something about parity violation where it was initially thought that the positive kaon decaying into 2... Dec13-10 02:10 PM jeebs 2 2,157