Publication
Title
Observation of the heavy baryons $\Sigma_{b}$ and $\Sigma_{b}^{*}$
Author
Institution/Organisation
CDF Collaboration
Abstract
 We report an observation of new bottom baryons produced in pp̅ collisions at the Tevatron. Using 1.1  fb-1 of data collected by the CDF II detector, we observe four Λb0π± resonances in the fully reconstructed decay mode Λb0→Λc+π-, where Λc+→pK-π+. We interpret these states as the Σb(*)± baryons and measure the following masses: mΣb+=5807.8-2.2+2.0(stat.)±1.7(syst.)  MeV/c2, mΣb-=5815.2±1.0(stat.)±1.7(syst.)  MeV/c2, and m(Σb*)-m(Σb)=21.2-1.9+2.0(stat.)-0.3+0.4(syst.)  MeV/c2.
Language
English
Source (journal)
Physical review letters. - New York, N.Y.
Publication
New York, N.Y. : 2007
ISSN
0031-9007
Volume/pages
99:20(2007), p. 202001,1-202001,7
ISI
000251003600013
Full text (Publishers DOI)
Full text (open access)
UAntwerpen
 Faculty/Department Publication type Subject Affiliation Publications with a UAntwerp address