BEGIN:VCALENDAR VERSION:2.0 PRODID:Data::ICal 0.22 BEGIN:VEVENT DESCRIPTION:Andrei Gritsan\, Johns Hopkins University\n\n
\n The recently discovered Higgs boson is a completely new form of matter-energy and is believed to be a manifestation of the all-penetrating field responsible for generating mass of all eleme ntary particles. It was observed as a resonance with mass near 125 GeV in the decay to a pair of two vector bosons on the ATLAS and CMS experiments at LHC in 2012. It is expected to \;have the width of about 4 MeV and the \;quantum numbers of the vacuum (J^PC=0^++). Yet experimental reso lution allowed us to set an upper limit on the width of about 3400 MeV and only a limited number of \;spin-parity assignments were tested until recently. Two recent results from the CMS experiment provided a breakthrou gh in the study of the H boson properties: one is the measurement of the w idth from \;an interplay between the off-shell and on-shell production of the H boson\, leading to a 22 MeV limit on the width\, and the other i s the \;tensor structure measurement of the H boson interactions with four pairs of vector bosons\, \;leading to constraints on its spin-par ity properties. Both \;results will be discussed.
\n DTSTART:20150114T203000Z LOCATION:Physics Building\, Room 204 SUMMARY:Mass\, width\, and quantum numbers: everything about the Higgs boso n with 20 events END:VEVENT END:VCALENDAR