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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.
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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) |
-
[1] |
Hao Yang
, Zhi-Qing Zhang
, You-Ya Yang
, Peng Li
. $ D^*_{(s)}\to P $ form factors and their applications to semi-leptonic and non-leptonic weak decays. Chinese Physics C,
2025, 49(12): 123104.
doi: 10.1088/1674-1137/adfb5d
|
[2] |
FAN Ping
, YUAN Da-Qing
, ZUO Yi
, ZHENG Yong-Nan
, ZHOU Dong-Mei
, WU Xiao-Guang
, LI Guang-Sheng
, ZHU Li-Hua
, XU Guo-Ji
, FAN Qi-Wen
, ZHANG Xi-Zhen
, ZHU Sheng-Yun
. Proton alignment in 82Sr investigated by g-factor measurements. Chinese Physics C,
2009, 33(S1): 206-208.
doi: 10.1088/1674-1137/33/S1/066
|
[3] |
Yang Jianjun
, Ma Boqiang
, Li Guanglie
. Non-perturbative Quark Propagator and the Study of the Non-trivial Q2 Dependence in the Nucleon Structure Functions. Chinese Physics C,
1997, 21(2): 146-156. |
[4] |
Yu Hong
, Shen Qixing
, Zhang Lin
. Angular Distribution of Process e+e-→τ+τ-,τ-→a1υτ,a1→ρπ and Characteristics of a1 Meson. Chinese Physics C,
1994, 18(7): 583-590. |
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