Recent content by Ado

Problem solved! Thanks!

Oh yes, it is a mistake ! it is not Z but Y.

Hi! I need your help for solving a couple of differential equation: dX/dt = a - b*X dY/dt = b*(c*exp(-E) - Y) - d*exp(-E)*Y X = X0 + f(Y, E) with X0, a, b, c and d are constants and f, a function of Z and E. Thank you in advance

Hi! I would like solve this kind of relation: \phi = \int_0^r \phi (r') 4 \pi r'dr' But I don't know how to proceed... Can you advise me ? Thank's in advance !

Exact :) the Photoelectric effect does not involve energy distribution, it is convenient =)

Hi! I wonder, in the case of elastic reactions with nuclear potential, how go from an angular distribution to an energy distribution? I have relationships on differential angular cross sections for neutron and proton elastic nuclear reations and I would like to transform them into differential...

Thank you very much @highflyyer !

Hello, My question is about the calculation of phase shifts δl in scattering theory. Some article mention that we can obtain phase shifts by numerically solving the radial Schrodinger equation but I'm not sure how to do it. Do you know how to proceed? is there any code (python, c ++, ...)...

Hi! I wonder since some time why ionization energies are not equal to binding energies. For instance, take the case of aluminum in the following configuration [Ne]3s²3p Ionization energy ~ 6 eV Binding energy ~ 5 eV Where does this difference come from ? Thanks in advance

You are right rude man, thank's for your help :)

Homework Statement I need to integrate this expression : P(k, w) = A * δ(w-k*v) * f(k, w) A is constant and δ, Dirac Delta.Homework Equations [/B] There is double integration : I = ∫0∞ dk ∫0∞ P(k,w) dw = A ∫∫0∞ δ(w-k*v) * f(k, w) dw dk The Attempt at a Solution [/B] I'm confused with...

Thanks a lot for your explication mjc123 and thanks for your help!

Thanks for your reply mjc123 ! I had applied your recommendation and I find the result in (1.3) :wink: If I used the substitution u = cosθ, I must then integrate between 1 and -1 (cos(0) = 1 and cos(pi) = -1). I put du = -sinθdθ, so : exp(-i pr cos(θ) ) sin(θ) dθ = -exp(-i pr u) du = -...

Hi! 1. Homework Statement From the website http://www1.uprh.edu/rbaretti/MomentumspaceIntegration8feb2010.htm we can see the Fourier transform of the ground state hydrogenic wave function : Φ(p) = ∫ ∫ ∫ exp(-i p r) (Z3/π )1/2 exp(-Zr) sin(θ) dθ dφ r² dr (1.1) After intregation...

Never mind! ;) Thanks for your replies!