[en] The S-wave spectrum of the q2q_2 system composed of u and d quarks is investigated in the framework of the non-relativistic quark model using Bhaduri's potential supplemented with an effective interaction simulating the annihilation of qq_ pairs. The calculations are performed in harmonic oscillator bases including all the configurations up to 6hw excitation energy. Some calculated 0+ and 2+ states an found to be compatible with the 0+ and 2+ rho/rho and omega/omega resonances observed in p_/n, gamma/gamma and pi-/p reactions. The q2q_2 interpretation of the isoscalar pi/pi resonance AX(1565) is discussed.
