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Extraction of the Structure Functions in τ→3πv Decay Using Li Model |
| XIONG Zhao-hua;CHEN Guo-ming;CHEN He-sheng |
| Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039 |
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| Cite this article: |
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XIONG Zhao-hua, CHEN Guo-ming, CHEN He-sheng 1998 Chin. Phys. Lett. 15 868-870 |
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Abstract The structure functions in the τ→3πv decay are extracted using the model proposed by Li. The predictions of Li model are compared with KS ones and the data from OPAL experiment. It is found that predictions by the model for ωA (Q2) are consistent with the data except for in the high energy region (Q2 > 1.2 GeV2 ) , and ωC, ωD, ωE normalized to ωA are in reasonable agreement with the experimental results. Correction factors to the Breit-Wigner distribution of a1 and the Lagrangian of this decay are proposed to the model.
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| Keywords:
13.35.Dx
12.39.Fe
12.10.Dm
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Published: 01 December 1998
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| PACS: |
13.35.Dx
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(Decays of taus)
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12.39.Fe
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(Chiral Lagrangians)
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12.10.Dm
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(Unified theories and models of strong and electroweak interactions)
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