BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Third Family Hypercharge Model: connecting B physics with the ferm
 ion mass hierarchy - Joseph Davighi (DAMTP)
DTSTART:20181015T150000Z
DTEND:20181015T160000Z
UID:TALK110365@talks.cam.ac.uk
CONTACT:Francesco Coradeschi
DESCRIPTION:LHCb's recent measurements of certain semi-leptonic B meson de
 cays deviate from the Standard Model prediction at the level of four sigma
 . If this deviation is confirmed with the release of more data from LHCb a
 nd B factory experiments\, this would strongly imply the existence of new 
 physics which couples differently to muons and electrons. It is tempting t
 o hypothesize that such flavour-dependent new physics could also explain t
 he hierarchies in fermion masses. To that end\, in this talk I will introd
 uce the "Third Family Hypercharge Model" which explains both the LHCb data
  and the hierarchical heaviness of the third family via an anomaly-free\, 
 spontaneously-broken U(1) gauge symmetry\, without any fermionic fields be
 yond those of the Standard Model. The charges of the third family fermions
  and the Standard Model Higgs are set equal to their respective hypercharg
 es\, with the lighter fermions being uncharged under the new U(1) symmetry
 . I will illustrate how the model is consistent with experimental bounds (
 for example\, from precision LEP measurements) in a simple example case.
LOCATION:MR19 (Potter Room\, Pavilion B)\, CMS
END:VEVENT
END:VCALENDAR