Heavy Flavor Baryon States at the Tevatron

Precision
measurements
of
the
masses
and
widths
of
the
bottom
baryon
resonances
 Σb
and
Σb*
and
charm
baryons
Λc(2595),
Λc(2625),
Σc(2455),
and
Σc(2520)
are
reported.

A
new
 measurement
of
Λb
production
is
described.

The
studies
include
the
first
measurement
of
the
 widths
and
isospin
mass
splittings
of
the
members
of
the
Σb
family.
The
charm
baryons
are
 examined
through
their
strong
decays
to
the
Λc
ground
state,
and
measurements
of
their
mass
 differences
relative
to
the
ground
state,
and
corresponding
decay
widths,
are
reported.
The
data
 were
collected
by
the
CDF
and
D0
detectors
for
1.96
TeV
proton‐antiproton
collisions
during
Run
 II
at
the
Fermilab
Tevatron.