Will Parker - Direct CP Violation in 𝑩+ →𝑲+𝝅𝟎 and the Upstream Tracker at LHCb

Thursday 14 Oct 2021, 12:30 → 13:30 America/Los_Angeles

virtual (SLAC)

Flavor physics is a powerful venue to indirectly search for physics beyond the Standard Model.  Several anomalies have been observed in the decays of B mesons, which have continued to persist with new data and have been explored as potential hints of new physics.  I will discuss a longstanding anomaly in the CP asymmetries of B decays to a kaon and pion, known as the K pi puzzle.  I will present a recent, and the most precise, measurement of the direct CP asymmetry in the decay B+ to K+ pi0 at LHCb that confirms and strengthens the anomaly.  I will also discuss an ongoing upgrade of the LHCb detector that will increase data collection by a factor of 5, highlighting the new Upstream Tracker detector, and the implications for this area of analysis.

 

Zoom link: https://stanford.zoom.us/j/94642768923?pwd=NmtNVXVvMGhoTWhqNnE3dXh4U1dKUT09

Meeting ID: 946 4276 8923

Password: 134699

20211014-Will_Parker-K_Pi_puzzle.pdf

Recording