Eur. Phys. J. A 14, 265-269 (2002)
DOI: 10.1140/epja/i2001-10211-3
Short Note
Chiral-invariant phase space model
I. Masses of hadrons
M.V. KossovITEP, Moscow, Russia and CERN, 1211 Geneva, Switzerland Mikhail.Kossov@cern.ch
(Received: 12 December 2001 / Revised version: 16 May 2002 Communicated by V. Vento)
Abstract
The masses of the
hadrons are calculated in the
chiral-invariant phase space (CHIPS) model as a sum of the mean
energies of the quarks at a constant temperature
with the
color-magnetic splitting and the color-electric shift. The masses of
hadrons are parametrized by four constants:
,
ms,
and
. With the same number of parameters the CHIPS model fits the
masses of hadrons better than the classic bag model. The small mass of
the
d-quark (
) is used to prove that the isotopic
shifts of hadrons can be explained by the mass difference between the
d- and
u-quarks. The dibaryon mass is estimated in CHIPS to be
higher than in the bag model. The prediction for the mass of
the
cluster is about the same in both models. It is close
to
.
12.39.Ki - Relativistic quark model.
12.40.Yx - Hadron mass models and calculations.
© Società Italiana di Fisica, Springer-Verlag 2002