Recent content by Ene Dene

Yes, I did think that these energies were the same, that's why I asked a question, why aren't they the same. Yes, you did understand correctly but I also wanted to know why is that so. And here is why: Thank you all, now I understand.

[SOLVED] photon+deuteron-->p+n , E(photon)=? Problem: What is the minimal energy of photon for disassembling deuteron on proton and neutron (photon+d --> p+n)? By how much is that energy larger than energy of binding of deuteron? Binding energy of deuteron is E=2.225MeV, mass of deuteron is...

p=(E(photon)+E(electron), p1+p2=0) before, after I should have E of electron that exceeds rest mass of electron, and no momentum, so the answer should be that process is not possible. It should not be possible because photon should have some momentum (three component momentum) and since it...

1. Photon runs into motionless electron and gives the electron all of its energy 2. Fast positron interacts with motionless electron producing one photon 1. I know that if that electron were in atom, photon of some energy could give its energy, and electron would jump into a higher energy...

http://www.nndc.bnl.gov/masses/mass.mas03, and the missing data: u=931.50MeV p=1.00728u=938.28MeV d=2.01355u=1875.63MeV e=0.511MeV A(a,b)B=a+A->b+B Q=[(m(a)+m(A))-(m(b)+m(B)]MeV (1) This can't be more simple, but in every example that I saw in my lectures different values occur. For example...

I don't understand this one. Why wouldn't be, in principal, possible to produce force strong enough to break the bond, how does colour prevent that? Quark would carry colour anyway, as do free or bound electrons carry electrical charge, isn't that right? Yes, I had some wrong understanding...

I'm having a problem understanding QGP. Hadrons are bound states of quarks which interact by interchanging colour. Now, as I understood we haven't observed free quarks because the force rises by distance and that force is really strong. As I read in QGP quarks and gluons are not bound, you can't...

Thank you.

What is the mass of deutron then? How can I calculate it, or where can I find that data?

p+p -> deutron+positron+neutrino(e) The question is how much energy is released? Q=(m_{p}+m_{p})-(m_{d}+m_{e^+}+0.26MeV)=(938+938)MeV-(938+939+0.51+0.26)MeV<0 So I don't understand how can energy be relesed? I found that Q for that reaction is 1.442MeV. What am I doing wrong?

I understand now, thanks.

Ok, but how do I write my solution down as a combination of two real solutions, just like you did for (2)?

What if I wanted to plot psi(z)? I have never seen 3D plot for a wave function in one dimensional problem. I mean, when somewere wave function is large you can say that the particle is probably there, but if you have real and imaginery you can't plot just real part and talk about probability.

I'm having a problem understanding solutions of differential equation in QM: \psi''(z)+\frac{p}{z}\psi(z)+k^2\psi(z)=0 (1) I usualy use Fourbenious method, and in this case I get a 3 coefficients recursion relation which is really messy. So I do it like this: for really large...

Nooo, it can't bee :). I spent all night trying to solve this in most complicated ways and I didn't saw this... Thank you very much!