BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:STANDARD MODEL CONFRONTING NEW RESULTS FOR EPSILON-PRIME / EPSILON
 .
DTSTART;VALUE=DATE-TIME:19991007T093000Z
DTEND;VALUE=DATE-TIME:19991007T103000Z
DTSTAMP;VALUE=DATE-TIME:20260708T002805Z
UID:indico-event-1135@indico.ific.uv.es
DESCRIPTION:We analyze the CP violating ratio \\epe=epsilon'/epsilon in th
 e Standard Model in view of the new experimental results. We review the pr
 esent status of the most important non-perturbative parameters B_6\, B_8\,
  B_K and of the strange quark mass m_s. We also briefly discuss the issues
  of final state interactions and renormalization scheme dependence. Updati
 ng the values of the CKM parameters\, of m_t and Lambda (MSbar) and using 
 Gaussian errors for the experimental input and flat distributions for the 
 theoretical parameters we find \\epe substantially below the NA48 and KTeV
  data: \\epe= (7.7^{+6.0}_{-3.5}) 10^{-4} and \\epe= (5.2^{+4.6}_{-2.7}) 1
 0^{-4} in the NDR and HV renormalization schemes respectively. A simple sc
 anning of all input parameters gives on the other hand 1.05 10^{-4} \n\nht
 tps://indico.ific.uv.es/event/1135/
LOCATION:Edf. Institutos de Investigacion Sala de Juntas del IFIC
URL:https://indico.ific.uv.es/event/1135/
END:VEVENT
END:VCALENDAR