期刊
PHYSICS LETTERS B
卷 791, 期 -, 页码 1-5出版社
ELSEVIER
DOI: 10.1016/j.physletb.2019.02.016
关键词
Top quark; Vector-like quark
资金
- National Natural Science Foundation of China (NNSFC) [11847208, 11705093]
- Jiangsu Specially Appointed Professor Program
Vector-like quarks (VLQs) are attractive extensions to the Standard Model. They mix with the SM quarks and can lead to rich phenomenology. Determination of VLQ's interaction structure with the SM is then an important issue, which can be inferred from the decay products of VLQs, such as top quark. We calculate the spin-analyzing powers for charged leptons from top quark in VLQ decay for various VLQ scenarios. We find that the top polarization effect will be helpful to distinguish different natures of the VLQ couplings with the SM. (c) 2019 The Authors. Published by Elsevier B.V.
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