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

SHEN Cheng-Ping; YUAN Chang-Zheng

doi:10.1088/1674-1137/34/8/002

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2024年10月30日

Chinese Physics C> 2010, Vol. 34> Issue(8) : 1045-1051 DOI: 10.1088/1674-1137/34/8/002

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

SHEN Cheng-Ping ^, ,
YUAN Chang-Zheng

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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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[3]	A. Vafaee , A. N. Khorramian . RETRACTED:Impact of charm H1-ZEUS combined data and determination of the strong coupling in two different schemes. Chinese Physics C, 2017, 41(11): 113104. doi: 10.1088/1674-1137/41/11/113104
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[5]	WANG Wen-Feng (for the BABAR collaboration) . Precise measurement of the e⁺e^－→π⁺π^－(γ) cross section with the initial state radiation method at BABAR. Chinese Physics C, 2010, 34(6): 692-697. doi: 10.1088/1674-1137/34/6/014
[6]	V. P. Druzhinin . Measurements of the γγ^→π⁰ and γγ^→η_c transition form factors at BABAR. Chinese Physics C, 2010, 34(6): 816-821. doi: 10.1088/1674-1137/34/6/033
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[10]	WU Jia-Jun , ZHAO Qiang , ZOU Bing-Song . Study a₀(980)}-f₀(980) mixing in charmonium decays. Chinese Physics C, 2010, 34(6): 848-854. doi: 10.1088/1674-1137/34/6/038
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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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沈阳化工大学材料科学与工程学院沈阳 110142

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

SHEN Cheng-Ping ^,
YUAN Chang-Zheng

Corresponding author: SHEN Cheng-Ping,

Received Date: 2009-11-18
Accepted Date: 2010-01-11
Available Online: 2010-08-05

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.