Recent content by komigen

Hey, I have a question in how one can calculate the static dielectric constant, f, of NaCl. NaCl has density of 2170kg/m3, a lattice constant a= 5.6 A and a Young's modulus Y = 40GPa. the optical dielctric costant is 2.34. I couldn't find any formulas which connect these values together. We...

now I got it, But in this case M is the mass on the quark, but we have quarks u,u,d for the proton, how can we know which mass we are going to use?

Thanx, But I don't really understand 2), I can draw the digram, but don't understand the 2 points you wrote. In 4 you wrote it's allowed to measure x directly, but we don't know Pquark right? how can we measure the momentum of the quark in this case, and which quark do they mean, u or d? or is...

Hey guys, I have some questions about deep inelastic scattering. I have read a bit about it, but don't really understand the theroy behind it. I know that it is a method to be able to study quarks inside, example with an electron hitting a proton target one can be able to study the quarks of...

thanx a lot :)

Hey all, I have a question with first Brillouin zone. It's: It says that it's enough to consider values of K within the first brillouin zone, K= [-pi/a,pi/a). why is this easy to see, and why don't we choose the interval K= (0 , 2pi/a) instead? Why is the point K=pi/a not included (open...

thanx a lot, understand now :)

oh, thanks a lot, yeah R is the nuclear force range. If then understood right then i use the normalzation for u2(r) to get the variable C. Then calculate the probability using this equation 2 right? then it becomes hard to find an primitive function for this equation in this intervall, well...

The problem is that i don't know how to calculate the probability usind the continuity condition at r=R. The equation for r<R: u1(r)=Asink1r And for r>R we have : u2(r)=Ce-k2r k1=squere root of (2m(E+V0)/h2) k2=squere root of (-2mE/h2). I then put , u1(R)=u2(R), and, u1'(R)=u2'(R)...

hi, Need help to calculate the probability for the proton and neutron in the deuteron to be found beyond the range of the nucleon-nucleon force, assuming a square-well potential. I used schrödinger equation and solved for the r<R, and r>R. then took into acount the continuity condition at...