Hadronic decays of the tau lepton:: τ- → (πππ)- vτ within Resonance Chiral Theory

被引:0
|
作者
Dumm, DG [1 ]
Pich, A
Portolés, J
机构
[1] Natl Univ La Plata, IFLP, CONICET, Dept Fis, CC 67, RA-1900 La Plata, Argentina
[2] Univ Valencia, CSIC, IFIC, Edifici Inst Paterna, E-46071 Valencia, Spain
来源
QCD@WORK 2005 | 2006年 / 806卷
关键词
non-perturbative QCD; chiral symmetry; tau decays;
D O I
暂无
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
tau decays into hadrons foresee the study of the hadronization of vector and axial-vector QCD currents, yielding relevant information on the dynamics of the resonances entering into the processes. We analyse tau -> pi pi pi v(tau) decays within the framework of the Resonance Chiral Theory, comparing this theoretical scheme with the experimental data, namely ALEPH spectral function and branching ratio. Hence we get values for the mass and on-shell width of the a(1)(1260) resonance, and provide the structure functions that have been measured by OPAL and CLEO-II.
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页码:11 / +
页数:3
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