BEGIN:VCALENDAR VERSION:2.0 PRODID:Baylor CMS Calendar /PHP/ METHOD:PUBLISH BEGIN:VTIMEZONE TZID:US_Central BEGIN:STANDARD DTSTART:20001029T020000 RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=11;BYDAY=1SU TZNAME:Standard Time TZOFFSETFROM:-0500 TZOFFSETTO:-0600 END:STANDARD BEGIN:DAYLIGHT DTSTART:20010401T020000 RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=3;BYDAY=2SU TZNAME:Daylight Saving Time TZOFFSETFROM:-0600 TZOFFSETTO:-0500 END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:Baylor_CMS_Event-83251 DTSTAMP:20260610T060939Z SUMMARY:2013 Spring High Energy Particle Physics Seminar: Dr. Karen Bland DESCRIPTION;ENCODING=QUOTED-PRINTABLE:Karen Bland, Ph. D. =0D=0A= Baylor University=0D=0A= Search for Rare Z Decays into Two Reconstructed Photons at CDF=0D=0A= We report the most sensitive search to date for forbidden and exotic decays of the Z boson to a pair of photons, a pair of neutral mesons, or a neutral meson and a photon. The search is using the full CDF dataset corresponding to 10.0 fb-1 of integrated luminosity. The two decay products are reconstructed in the electromagnetic calorimeter, spanning a rapidity range of |ƒÅ| < 1.1, and their momenta are used to reconstruct the invariant mass of the pair that is used to identify Z bosons. Bayesian 95% C.L. limits on the signal branching ratio are derived by fitting the signal and background expectations to the data in the Z-mass window of [80,102] GeV/c2. The observed branching ratio limits presented here are 1.66~10−5 for Z¨ƒÁƒÁ, 2.28~10−5 for Z¨ƒÎ0ƒÁ, and 1.73~10−5 for Z¨ƒÎ0ƒÎ0. The Z¨ƒÁƒÁ and Z¨ƒÎ0ƒÁ limits are more sensitive by factors of 3.1 and 2.3, respectively, than the most stringent Particle Data Group limits reported by experiments at the LEP collider. The Z¨ƒÎ0ƒÎ0 branching ratio limit is the first limit reported in this decay mode.=0D=0A= For more information, please contact: Dr. Jay Dittmann 254-710- 2275 LOCATION:Baylor Sciences Building, Room A.202 DTSTART;TZID=US_Central:20130415T153000 DTEND;TZID=US_Central:20130415T170000 END:VEVENT END:VCALENDAR