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SUMMARY:Recent Quarkonium Results from BaBar
DTSTART;VALUE=DATE-TIME:20100722T100000Z
DTEND;VALUE=DATE-TIME:20100722T101500Z
DTSTAMP;VALUE=DATE-TIME:20130526T021648Z
UID:indico-contribution-1227@cern.ch
DESCRIPTION:Speakers: FULSOM\, Bryan (SLAC National Accelerator Laboratory
 )\nWe present recent results on quarkonium states from the Babar experimen
 t. We have observed the Y(^3 1 D_J) state of bottomonium in the reaction Y
 (3S)->γ γ Y(^3 1D_J)\, γ(^3 1 D_J)->π π Y(1S) with a significance of 
 6.2 standard deviations.\nWe present a study of the decay Y(1S)->D+* + X p
 roduced in the decay Y(2S)->π+ π- Y(1S) using a sample of 98.6 million Y
 (2S) events. We measure the Y(1S)=>D+* + X branching fraction and the mome
 ntum distribution of the D* in the Y(1S) rest-frame. We find evidence for 
 an excess of D* production over the expected rate from the virtual photon 
 annihilation process Y(1S)->γ*->cbar c->D+* X. We also present a search f
 or the spin singlet h_b partner of the χb(1P) triplet\, the h_b(1P) state
  of bottomonium in the transition Y(1S)->π0 h_b and Y(3s)->π+ π- h_b us
 ing a sample of 122 million Y(3S) events.\n\nhttp://indico.cern.ch/contrib
 utionDisplay.py?contribId=1227&sessionId=50&confId=73513
LOCATION: Salle 242
URL:http://indico.cern.ch/contributionDisplay.py?contribId=1227&sessionId=
 50&confId=73513
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