Particle physics Definition and 512 Threads

Did I say Particle Physics? I shouldn't have said that. I don't know much about it. But still, what I came upto recently was this :- I read somewhere that unstable nuclides can disintegrate in several ways, beta decay and positron decay being two of them. In beta decay, a neutron gets...

like the title thanks

1) What percentage of incident photon radiation passes through 5 mm of material whose absorption coefficient is 0.7 mm^-1? What is an absorption length? I am lost here. Any input ...some mathematical formula for the absoprtion coefficient...would be a great help to me. 2) Why is the mean...

Hi I am just in my first yr doing a physical & life sciences degree, Its a 3 yr course for ordinary degree & 4 yrs for honours degree, but in the second year I have to choose in which direction I am heading in, ie for physics, Chemistry, or Biology. Im choosing physics & then after this...

I was wondering who you thaught is most responicle for todays development of particle physics?

This should be an easy general question to someone out there. My "quarks and Leptons" book by Halzen and Martin introduces the term "phase space" 50 pages before the index reference, and never seems to define it. What is phase space in this context? Thanks

Hello, I've been doing some extra reading in Physics and there are some certain aspects that I don't understand. I'd appreciate some people explaining to me what they mean. 1.) Wave Function 2.) Intrinsic Angular momentum 3.) Relativistic 4.) The Coupling Constant 5.) Spin is...

hello everyone. I have a limited background in particle physics (books). I was wondering if someone can help me with definitions of what certain particles are and what their names pertain to. No need to explain basic stuff (protons, neutrons, neutrinos, electrons, photons, positrons, gravitons...

I holp someone can help me to write an essary on elementary particle physics covering all the following topics 1.fundamental forcies 2.conservation laws 3.field and quanta 4.quarks i'm sorry about my bad English and very thanks for every one to have see my topics. :smile:

I'm just about to start a piece of research project on particle physics. Can anyone give me some useful ideas and websites containing useful information? I just want to have a general idea about it. Also interesting things that I can do with Particles. What types of theories are linked to...

What is the standard model?

I'd really appreciate any help you can give me with the following questions: Use lepton universality and lepton-quark symmetry (ignore quark mixing) to estimate the branching ratios for: a) b -> c + e- + anti-electronneutrino b) tau -> e- + anti-electronneutrino + tauneutrino Surely...