IMPLICATIONS OF TAU-DECAYS INTO STRANGE SCALAR AND AXIAL-VECTOR MESONS

被引:17
|
作者
LIPKIN, HJ
机构
[1] TEL AVIV UNIV,RAYMOND & BEVERLY SACKLER FAC EXACT SCI,SCH PHYS & ASTRON,IL-69978 TEL AVIV,ISRAEL
[2] ARGONNE NATL LAB,DIV HIGH ENERGY PHYS,ARGONNE,IL 60439
[3] ARGONNE NATL LAB,DIV PHYS,ARGONNE,IL 60439
关键词
D O I
10.1016/0370-2693(93)90054-L
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Recent reports of the observation of the decay tau-->nu(tau)+K+pi+pi raise interesting questions. The u-s quark mass difference can induce an effective second class current in the strange sector and enhance decays to helicity suppressed scalar states. This suggests searches for scalar strange mesons in the tau-->nu(tau)+K+eta' and tau-->nu(tau)+K+pi decay modes. Tau decays to axial vector final states may clarify strange meson spectroscopy by analogy with the clarification of the a1 problem in the nonstrange sector. Open questions include mixing effects in the strange axial vector mesons and the implications of models based on CD for hadronization and final state interactions following the creation of a qqBAR pair by a weak vertex.
引用
收藏
页码:119 / 124
页数:6
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