# 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: 123,044 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 58,859 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 25,189 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 1,762 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 2 788 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 2 848 Would the energy just be a multiple of how much bigger it is than electron? Oct30-10 06:58 PM Bob S 2 3,510 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 1,265 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 1,359 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 2 681 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 2 997 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 1,588 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 1,098 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 1,375 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 1,381 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 2,770 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 3,286 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 1,309 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 1,043 In a 1964 publication Bruno Rossi describes an experiment where cosmic rays could penetrate dense materials. Finding... Nov27-10 04:28 PM hardhacker 2 1,447 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 2,320 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 2 850 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 1,691 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 2 970 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 2 833 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 2,010 Can anybody please suggest some references (preferably review articles or lecture notes etc, freely available online)... Dec23-10 05:12 PM blechman 2 2,998 how much energy is released during the fusion of proton and neutron? Dec11-10 01:50 PM Bob S 2 955 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 2,164 Hi, at first i want to apologize for my bad english. I have to give a speech on some result of a high energy... Dec18-10 04:40 AM Ps9 2 3,629 As the thread title suggests, I was wondering if electrically neutral particles like neutrons can absorb/emit/reflect... Dec17-10 04:07 PM lpetrich 2 1,227 As a person with a very basic understanding of nuclear physics, I am curious about the source of energy in a fission... Dec28-10 02:55 AM Drakkith 2 885 Is there any energy released during fusion of proton with neutron? I cant find it anywhere the details of this... Jan3-11 08:16 AM Vanadium 50 2 821 In calculations of weak interaction processes in the Fermi-theory, there are some amplitudes of the form:... Jan9-11 09:10 AM evilcman 2 756 reading the light-heart book of Aitchison, "an informal intro...", we see that the problem with mass terms in the... Jan14-11 07:19 AM arivero 2 978 Hi, Radioactive materials will decay to datughter products. in the mean process they emit alpha or beta... Jan25-11 05:05 AM rama1001 2 754 Hi everyone, Im currently in the way of learning about fusion to prepare myself for a thesis in this area. The... Jan27-11 01:42 PM AndyUrquijo 2 1,570 Hey, I've been reading a bit in the QFT book by Pierre Ramond about loops and i stumbled about some derivations in... Jan27-11 01:35 PM earth2 2 750 Hi everybody, as usual I need help with some definitions regarding many-loop calculations. In particular what do... Jan27-11 04:58 PM Sleuth 2 2,596 I have some questions about the relationship between the charge of a proton and an electron. Is it well understood... Jan31-11 03:30 PM mathman 2 2,564 Hello. Why isn't there alpha decay in fission reaction or fission fragments evolution ? is there only gamma and betas? Feb1-11 02:42 PM kilele 2 1,874 Hi yall, I was just wondering, seeing as how photons are massless, would there be a limit to the amount of... Feb10-11 07:16 PM easyrider 2 1,005 Hello, Just a few questions about a couple of terms in and not in the SM Lagrangian. I'll talk in particular about... Feb14-11 03:12 AM Parlyne 2 1,388

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