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  Location: Home >  Research Activities >  Seminar
Studies of τ decays into η(‘) mesons
2016-12-09     Text Size:  A

Institute of Theoretical Physics

Chinese Academy of Sciences

 Key Laboratory of Theoretical Physics

Seminar

Title

题目

Studies of τ decays into η(‘) mesons

Speaker

报告人

Dr. Sergi Gonzàlez-Solis

Affiliation

所在单位

ITP

Date

日期

2016年12月9日(周五)10:00

Venue

地点

ITP NEW BUILDING 6420

Abstract

联系人

Hadronic τ decays constitute an advantageous laboratory to access the non-perturbative regime of QCD i.e. they are useful to understand the hadronization of QCD currents, to study form factors and to extract physical resonance parameters. In the first part of the talk we will analyze the τ − → K− η(‘) ντ and τ− → KS π− ντ decays in the framework of Resonance Chiral Theory supplemented by dispersion relations. From the experimental data analysis, relevant information concerning the the exchanged K∗(892) and K∗(1410) resonances is extracted. In the second part of the talk we will examine the rare τ− → π− η(’) ντ decays. These procceses occur via isospin violation and belong to the so-called second-class currents unseen in Nature so far. Our study is focused on the construction of the participant form factors to predict both the corresponding decay spectra and branching ratio in view of the upcoming experimental facilities.

Contact Person

联系人

郭奉坤
  Appendix:
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