Title
Observation of the heavy baryons <tex>$\Sigma_{b}$</tex> and <tex>$\Sigma_{b}^{*}$</tex> Observation of the heavy baryons <tex>$\Sigma_{b}$</tex> and <tex>$\Sigma_{b}^{*}$</tex>
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
New York, N.Y. ,
Subject
Physics
Source (journal)
Physical review letters. - New York, N.Y.
Volume/pages
99(2007) :20 , p. 202001,1-202001,7
ISSN
0031-9007
ISI
000251003600013
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We report an observation of new bottom baryons produced in pp&#773; 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.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/bf2051/4730e535.pdf
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