Analysis of correlation data of pi(+)pi(-) pair in the p+Ta reaction usingCoulomb wave function including momentum resolution and the strong interaction effect

We propose a new method for the Coulomb wave function correction which incl udes the momentum resolution for charged hadron pairs and apply it to the p recise data on pi(+)pi(-) correlations obtained in the p +Ta reaction at 70 GeV/c. We find that interaction regions of this reaction (assuming Gaussia n source function) are 9.8 +/- 5.8 and 7.7 +/- 4.8 fm for the thicknesses o f the target 8 and 1.4 mu m, respectively. We also analyze the data by the formula including strong interaction effect. The physical picture of the so urce size obtained in this way is discussed. [S0556-2813(99)02604-7].