Recent Results from Kaon Physics

Experimental Particle Physics seminar

Recent Results from Kaon Physics

  • Event time: 1:00pm until 2:00pm
  • Event date: 2nd November 2007
  • Speaker: Cristina Lazzeroni (Birmingham University)
  • Location: Room 3317,

Event details

A review of recent results on kaon physics is presented.

Firstly, results on kaon semileptonic decays are summarised and a value for the CKM matrix element $V_{us}$ is extracted, compatible at 1 $\sigma$ with that expected from CKM unitarity. Then precision data on $K_{l3}$ and $K_{l2}$ decay rates are presented and tests for new physics searches are discussed.

Finally, preliminary results on the $K_{e4}$ decay $K^\pm \rightarrow \pi^+ \pi^- e^\pm \nu$ are summarised. The $\pi\pi$ scattering lengths $a^0_0$ and $a^2_0$ can be extracted from the $K_{e4}$ phase shift and from the slope change in the $M^2_{00}$ distribution of $K^\pm \rightarrow \pi^0 \pi^0 \pi^\pm $ decays. Future prospects on kaon physics are also briefly revised.

Event resources

The experimental particle physics seminar series invites speakers from all over Europe to discuss the latest developments at the LHC, accelerator and non-accelerator based neutrino physics, hardware R&D and astroparticle physics. .

Find out more about Experimental Particle Physics seminars.