A method for measuring D* electromagnetic form factors in e+ e- annihilation

Han Guo; Zi-Ping Zhang

doi:10.1088/1674-1137/41/9/093001

Chinese Physics C> 2017, Vol. 41> Issue(9) : 093001 DOI: 10.1088/1674-1137/41/9/093001

A method for measuring D^* electromagnetic form factors in e⁺ e^- annihilation

Han Guo ^, ,
Zi-Ping Zhang ^,

1.
University of Science and Technology of China, Hefei 230026, China

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Abstract：
We describe a method for measuring the electromagnetic form factors of the m D^* meson at time-like momentum transfer in e⁺ e^- annihilation. This is to study the joint angular distribution of the e⁺ e^- → γ^* → D^*+ D^*-, D^*+ → D⁰ π⁺, and D^*- → D⁰ π^- processes. The magnitudes and relative phases of the charge, magnetic and quadrupole form factors can be determined. The method can also be applied to other vector particles.
- electromagnetic form factor ,
- D* meson ,
- e+ e- annihilation ,
- perturbative QCD

References

[1]	L. Durand, Phys. Rev., 123:1393(1961)
[2]	H. Jones, Nuovo Cimento, 26:790(1962)
[3]	R. Arnold, C. Carlson, and F. Gross, Phys. Rev. C, 21:1426(1980)
[4]	S. Brodsky and J. Hiller, Phys. Rev. D, 46:2141(1992)
[5]	G. Pakhlova et al (Belle Collaboration), Phys. Rev. Lett., 98:092001(2007)
[6]	T. Uglov et al (Belle Collaboration), Phys. Rev. D, 70:071101(2004)

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Han Guo and Zi-Ping Zhang. A method for measuring D^* electromagnetic form factors in e⁺ e^- annihilation[J]. Chinese Physics C, 2017, 41(9): 093001. doi: 10.1088/1674-1137/41/9/093001

Han Guo and Zi-Ping Zhang. A method for measuring D^* electromagnetic form factors in e⁺ e^- annihilation[J]. Chinese Physics C, 2017, 41(9): 093001. doi: 10.1088/1674-1137/41/9/093001 shu

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Received: 2017-04-28

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Supported by National Natural Science Foundation of China (11675166)

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

A method for measuring D^* electromagnetic form factors in e⁺ e^- annihilation

Han Guo ^,
Zi-Ping Zhang ^,

Corresponding author: Han Guo,

Corresponding author: Zi-Ping Zhang,

1. University of Science and Technology of China, Hefei 230026, China

Received Date: 2017-04-28
Available Online: 2017-09-05

Fund Project: Supported by National Natural Science Foundation of China (11675166)

Abstract: We describe a method for measuring the electromagnetic form factors of the m D^* meson at time-like momentum transfer in e⁺ e^- annihilation. This is to study the joint angular distribution of the e⁺ e^- → γ^* → D^*+ D^*-, D^*+ → D⁰ π⁺, and D^*- → D⁰ π^- processes. The magnitudes and relative phases of the charge, magnetic and quadrupole form factors can be determined. The method can also be applied to other vector particles.