Recent content by martinhiggs

Hi! I'm currently performing lots of research into the Higgs Boson. In many papers, when talking specifically about production and decay mechanisms, they talk about the "high QCD background". I can't find a specific definition for what this means and refers to. Any clarification would be...

Great, finally I've figured it all out! Thank you for your help! :)

Sorry, I meant 1/... for the Lorentz factor, typed it out wrong. Ah, ok, I wasn't thinking of mass as a constant, I see now. Thanks!

Ok, so I've been working on this problem for about 24 hours and I think I'm finally getting somewhere with it. In class we were given a sheet of useful formulae, and this included: p = \gamma \beta m_{0} c = \frac{m_{0} \beta c}{\sqrt{1 - \beta^{2}}} = \frac{\sqrt{E_{tot}^{2} -...

Homework Statement I have to find a relation for kinetic energy as a function of the lorentz factor, KE(gamma). It can only depend on the lorentz factor or on a constant. Homework Equations E_{tot} = \gamma m_{0} c^{2} E_{tot} = KE + m_{0}c^{2} = \sqrt{p^{2}c^{2} + m_{0}c^{4}} \gamma =...

Homework Statement Using: particle velocity, beta particle momentum, p total energy, E Lorentz factor, gamma kinetic energy, KE Derive an equation for momentum as a function of kinetic energy. The functions have to depend either on the variable in the bracket, p(KE), or on a...

Homework Statement In using the experiment where a scintillator is connected up to PMTs, and the data is then recorded on the computer... The muon has already lived outside the scintillator for a large amount of time before it decays in the scintillator, so how is it that the experiment...

Ah yes, got it! Thank you for your help, I've spent all morning trying to work it out! :)

I get an even larger result if I divide by c^2...

Homework Statement I have to find the Fermi Coupling Constant using my measurement of the muon lifetime. My measurement is 2.1786x10^-6s Homework Equations G_F=\sqrt{\frac{192.pi^{3}}{\tau.m_{\mu}}} The Attempt at a Solution I tried plugging in the numbers that I have and I get...

Yes, sorry, they are electrons and positrons colliding.

Homework Statement The circumference of the collider is 26.66 km, and there are 4 equally spaced points where the beams collide. A collision takes place every 22microseconds at each one of the collision points, with 4 bunches in each beam. The average current per beam is 3mA. I...

ah, it says they are accelerated up to 45GeV...

That's what I thought, but that is all the information that I have been given to solve it...

Homework Statement If its circumference is 27km, and there are 4 equally spaced points where the beams collide, show a collision takes place every 22 microseconds at each one of the collision points Homework Equations I don't know where to start, which equation should I use? The...