Analysis of correlation data of pi^+pi^- pair in p + Ta reaction using Coulomb wave function including momentum resolution and strong interaction effect

G. Wilk; I. V. Andreev; M. Biyajima; T. Mizoguchi

Analysis of correlation data of pi^+pi^- pair in p + Ta reaction using Coulomb wave function including momentum resolution and strong interaction effect

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arxiv nucl-th/9901045 v2 pith:I52FM572 submitted 1999-01-18 nucl-th

T. Mizoguchi , M. Biyajima , I. V. Andreev , G. Wilk This is my paper · ORCID

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We have proposed a new method for the Coulomb wave function correction which includes the momentum resolution for charged hadron pairs and applied it to the precise data on pi^+pi^- correlations obtained in p + Ta reaction at 70 GeV/c. It is found that interaction regions of this reaction (assuming Gaussian source function) are 9.8+-5.8 fm and 7.7+-4.8 fm for the thicknesses of the target 8 micro m and 1.4 micro m, respectively. We have also analyzed the data by the formula including strong interaction effect. The physical picture of the source size obtained in this way is discussed.

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