Recent content by lozzyjay

Hey, I have to write a Lab Report that is based on the ATLAS electromagnetic calorimeter. One of the topics I have to write about is "the detector technology used". I'm unsure of what this could refer to, can anyone help?!

Homework Statement i have a finite square well and I have to calculate how many bound states exist in it. I have the depth and the width of the well but I cannot find an equation anywhere to help me calculate it?

Ah yes! Thank you! :)

Homework Statement I missed the lecture on this so I just wanted to check if I am doing this correctly? Which of the following functions obey Laplace’s equation? a) Ψ(x, y) = 2xy b) Ψ(x, y) = x^3 - 3y^2 c) Ψ(x, y) = x^4 - 6x^2.y^2 d) Ψ(x, y) = e^x.siny e) Ψ(x, y) = sinxsinhy...

Hello! I have to hand in this coursework tomorrow and I just wanted to check I had done it correctly so if someone could have a look I'd be really grateful... It's quite long... Homework Statement A negatively charged pion \pi^{-} has mass m=140MeV/c^{2} and lifetime 2.6 x 10^{-8}s. a)...

I got: Let y = pix/L. So the limit becomes pi and 3pi/4 ∫sin^2(y) dy = 0.5∫(1-cos2y) dy = 0.5(y - 0.5sin2y), y from 3pi/4 to pi =0.5(pi/4-0.5) 1 = A^2*0.5(pi/4-0.5) I'm not sure if I did that right though... And how do I go from this to finding the probability that x>0.75L I'm a...

Homework Statement Hey all! A particle in a box of side L has wavefunction \psi(x) = Asin([Pi*x/L) for the ground state. a) Determine the value of A for a properly normalised wavefunction b) Determine the probability that x>0.75L Homework Equations - The Attempt at a Solution...

The solutions are of the form \psi = Ae^{ikx} + Be^{-ikx}

\frac{-h bar^{2}}{2m} \frac{d^2\psi}{dx^2} = (E - V_{0})\psi So that's the schrodinger equation for when the energy is less than V0 I think... Then to show the probability density... P(x) = \int\psi(x)* \psi(x) = 1 I have no idea what to do next...

Homework Statement An electron is in a 1 dimensional potential well. If the energy of the electron is < V0, show that the probability density P(x) for the electron falls exponentially: P(x) = Aexp(-x/L) I honestly have no clue, I've been trying all day to do this!

UCL and Royal Holloway are quite good

nexus looks a lot prettier :D

i preferred the old one

wow. sounds quite scary

does anyone know why this is?