Bose-Einstein Correlations and Source Functions. II : Analyses of Data in S+Pb Reaction at 200 GeV/c : Nuclear Physics

概要

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We consider several source functions in the Bose-Einstein correlations and show their interrelations between 4-dimensional and 3-dimensional configuration spaces. We use two frameworks, i.e., a conventional one and that of the laser optical approach. The data of the correlations in S+Pb reaction at 200 GeV/c by NA44 Collaboration are analysed by our formulae. It is found that the correlations expressed by the Gaussian distribution, an exponential function and power functions of Lorentzian show almost the same χ^2-values in both frameworks. From estimated values of the root mean square in the conventional formula, R_<rms>=√<<r^2>>, the following physical picture is obtained: 1.2A^<1/3>_T≲R_<rms>(S+Pb at 200 GeV/c)≲1.2(A^<1/3>_T+A^<1/3>_P), where A_T and A_P are target and projectile masses. New results and data in S+S, S+Ag and S+Pb reactions at 200 GeV/c are also examined by the present framework. It is confirmed that the root mean square, R_<rms>, is more sensitive than the magnitudes of space region, R's, in physical interpretation of parameters contained in the source functions.
理論物理学刊行会の論文
1994-05-25