Eur. Phys. J. A 14, 265-269 (2002)
Chiral-invariant phase space model
I. Masses of hadronsM.V. Kossov
ITEP, Moscow, Russia and CERN, 1211 Geneva, Switzerland Mikhail.Kossov@cern.ch
(Received: 12 December 2001 / Revised version: 16 May 2002 Communicated by V. Vento)
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