Measurement of Structure Function of τ→π<SUP>±</SUP>2π<SUP>0</SUP>v

Yao Xueyi; Chen Guoming; Chen Gang; Chen Hesheng; Tang Xiaowei

Chinese Physics C> 1999, Vol. 23> Issue(1) : 10-16

Measurement of Structure Function of τ→π^±2π⁰v

Institute of High Energy Physics, CAB, Beijing 100039

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Abstract：
The structure function of τ→π^±2π⁰v is measured by model independent method. The result is compared with Kuhn-Santamaria model, Isgur-Morningstar-Reader model and Feindt model. Good consistency between data and the three models is shown within the experimental error range. The comparison with the structure function of τ→3π^±v measured by OPAL Collaboration also shows there is no obvious difference within 0.52.

References

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Kuhn J H, Santamaria A. Z. Phys, 1990, C48:4452 Isgur N, Momingstar C, Reader C. Phys. Rev、 1989, D39: 13573 Feindt M. Z. Phys., 1990, C48:6814 Kuhn J H, Mirkes E. Z Phys., 1992, C56:6615 Akers R et al. OPAL Collab. Z. Phys., 1995, C67:45 6 Colangelo G et al Nucl. Phys. B, 1997, C55:325 7 L3 Collab. Nucl. Instr and Meth.1990, A289:35 8 Chen Guoming, Chen Gang. High Engrgy Phys. and Nucl. Phys.(in Chinese), 1995, 19:692 (陈国明,陈刚.高能物理与核物理,1995,19:692) 9 Albrecht H et al. ARGUS, Z Phys., 1993, C58:61 10 Privitera P . Phys. Lett, 1993, B308: 163 11 Lynos L et al. Nucl. Instr and Meth, 1986, A245:530 12 Barlow R. Nucl. Instr And Meth.,1990,A297:496 13 L3 Collab., Phys. Lett, 1995: B345:93

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Yao Xueyi, Chen Guoming, Chen Gang, Chen Hesheng and Tang Xiaowei. Measurement of Structure Function of τ→π^±2π⁰v[J]. Chinese Physics C, 1999, 23(1): 10-16.

Yao Xueyi, Chen Guoming, Chen Gang, Chen Hesheng and Tang Xiaowei. Measurement of Structure Function of τ→π^±2π⁰v[J]. Chinese Physics C, 1999, 23(1): 10-16. shu

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Received: 1998-02-19
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

Measurement of Structure Function of τ→π^±2π⁰v

Corresponding author: Yao Xueyi,

Institute of High Energy Physics, CAB, Beijing 100039

Received Date: 1998-02-19
Accepted Date: 1900-01-01
Available Online: 1999-01-05

Abstract: The structure function of τ→π^±2π⁰v is measured by model independent method. The result is compared with Kuhn-Santamaria model, Isgur-Morningstar-Reader model and Feindt model. Good consistency between data and the three models is shown within the experimental error range. The comparison with the structure function of τ→3π^±v measured by OPAL Collaboration also shows there is no obvious difference within 0.52.