Applicability of Perturbative QCD to Virtual Compton Scattering

SU Jian; MA Bo-Qiang

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2004, Vol. 28> Issue(2) : 116-121

Applicability of Perturbative QCD to Virtual Compton Scattering

SU Jian ,
MA Bo-Qiang ^,

School of Physics,Peking University,Beijing 100871,China

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Abstract：
We use pertubative QCD to calculate the cross sections of pion virtual Compton scattering. QCD running coupling constant and different pion distribution amplitudes are explored in detail. The “work point” is defined to determine when pQCD is applicable to exclusive processes. We show that pQCD begins to work at 10 GeV². If we relax our constraint to a weak sense, the work point may be as low as 4 GeV².

References

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SU Jian and MA Bo-Qiang. Applicability of Perturbative QCD to Virtual Compton Scattering[J]. Chinese Physics C, 2004, 28(2): 116-121.

SU Jian and MA Bo-Qiang. Applicability of Perturbative QCD to Virtual Compton Scattering[J]. Chinese Physics C, 2004, 28(2): 116-121. shu

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Received: 2003-05-22
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Applicability of Perturbative QCD to Virtual Compton Scattering

SU Jian
MA Bo-Qiang ^,

Corresponding author: MA Bo-Qiang,

School of Physics,Peking University,Beijing 100871,China

Received Date: 2003-05-22
Accepted Date: 1900-01-01
Available Online: 2004-02-05

Abstract: We use pertubative QCD to calculate the cross sections of pion virtual Compton scattering. QCD running coupling constant and different pion distribution amplitudes are explored in detail. The “work point” is defined to determine when pQCD is applicable to exclusive processes. We show that pQCD begins to work at 10 GeV². If we relax our constraint to a weak sense, the work point may be as low as 4 GeV².