Nonstrange baryonia

Abstract

The relativistic six-quark equations including the $u$, $d$ quarks and antiquarks are found. The nonstrange baryonia $B\bar{B}$ are constructed without the mixing of the quarks and antiquarks. The relativistic six-quark amplitudes of the baryonia are calculated. The poles of these amplitudes determine the masses of baryonia. 15 masses of baryonia are predicted. The mass of baryonium with the spin-parity $J^P=0^{-}$ $M=1835MeV$ is used as a fit.

Comments: 28 pages, latex