Combined fit to BABAR and Belle Data on e+e→φπ+π and φf0(980)

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SHEN Cheng-Ping and YUAN Chang-Zheng. Combined fit to BABAR and Belle Data on e+e→φπ+π and φf0(980)[J]. Chinese Physics C, 2010, 34(8): 1045-1051. doi: 10.1088/1674-1137/34/8/002
SHEN Cheng-Ping and YUAN Chang-Zheng. Combined fit to BABAR and Belle Data on e+e→φπ+π and φf0(980)[J]. Chinese Physics C, 2010, 34(8): 1045-1051.  doi: 10.1088/1674-1137/34/8/002 shu
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Received: 2009-11-18
Revised: 2010-01-11
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Combined fit to BABAR and Belle Data on e+e→φπ+π and φf0(980)

    Corresponding author: SHEN Cheng-Ping,

Abstract: 

A combined fit is performed to the BABAR and Belle measurements of the e+e→φπ+π and φf0(980) cross sections for center-of-mass energy between threshold and 3.0 GeV. The resonance parameters of the φ(1680) and Y(2175) are determined. The mass is (1681+10-12) MeV/c2 and the width is (221+34-24) MeV/c2 for the φ(1680), and the mass is (2117+59-49) MeV/c2 and the width is (164+69-80) MeV/c2 for the Y(2175). This information will shed light on the understanding of the nature of the excited φ and Y states observed in e+e annihilation.

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