Hefei workshop, 18-19/Oct/2004
ShinIchi Esumi, Univ. of Tsukuba
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テキスト ボックス: Phys.Lett. B597 (2004) 328-332, X. Dong et.al.
Phys.Rev. C70 (2004) 024901, V. Greco et.al
Pion deviation is explained
by resonance decays
pT shift  is the dominant effect compared to the smearing given by the opening angle.