Recent content by tg85

I think the branching ratio, compared with the eνν decay, was calculated as early as 1977 in this paper (eq. 8) by Petcov, downloadable http://ccdb5fs.kek.jp/cgi-bin/img_index?197702078 . It also appears here (eq. 10). Both are from before the actual discovery of neutrino oscillations, but it...

OK, thanks. So there is a contribution, but it's much smaller than the phase space suppression?

In the text-book example of CP violation in the kaon system, the usual statement is that the KS decays much faster than the KL because the phase space is larger for a decay into two pions, compared to three pions. (See, for example, Griffiths or "Modern Particle Physics" by Thomson.) I was...

OK, that helped me a lot. Thank you! Of course, my bad.

OK, thanks for your answers. This clears a lot of things up for me. Rest and kinetic energy should be precisely constrained in the K* rest frame by four-momentum conservation, right? So it really comes down to the width of the K*, and the energy not being exactly defined? OK, so the K1 and...

I have question that I've been thinking about for some time now, and that I can't get my head around. I an experimentalist without education in quantum field theory, and my quantum mechanics introduction courses were a long time ago, so bear with me please. As far as I understand, neutral kaons...

Hi everyone! I am a PhD student in experimental particle physics from Germany. I am currently writing my thesis and preparing for my exam. My PhD work was kind of technical, and in the last years I have become a bit rusty on many topics, expecially in theory. I decided to sign up to discuss a...