===================================================== October 30th 2017 - LHCb lepton universality ===================================================== Lepton universality session 2. Xiangyang chairs. ------------ Topics: - B-production - K characteristics - Detector specifics: why the RICH detectors? Hardware triggers ----------- Details: - How do we produce the B0? B quarks from gluon-gluon fusion is the dominant production mode. - When the b’s hadronize they can then produce B0’s. - What is the production fraction of the B0? There is also a B0->gamma + K*0 - How is the K*0 different from the K0? Its total spin state is 1 as its quark’s spins are aligned, so J=1. We can also change the l of the quarks relative to each other. - This spin coupling also gives information about the allowed angles and kinematics of the K and pion. - Brief chat about s-wave - Greg talks about RICH detectors and the differences between pion, kaon - Hardware triggers different for ECAL and HCAL - Special gen. tune is likely the special configuration for the B-physis (ref. 40) - How does the LHCb tracker work? How do the momentum ranges it can cover compare to ATLAS? - How do you distinguish between photons emitted upstream and downstream? - Brem. happens, see last sentence of section 3 - k-fold cross-validation rears its head ---------- Misc: