Study of $\Lambda_b\to\Lambda\nu\bar{\nu}$ with Polarized Baryons

Chuan-Hung Chen; C. Q. Geng

doi:10.1103/PhysRevD.63.054005

Study of $\Lambda_b\to\Lambda\nu\bar{\nu}$ with Polarized Baryons

高能物理 - 唯象学 2009-10-31 v1

作者: Chuan-Hung Chen , C. Q. Geng

在 arXiv 上查看 ↗ PDF ↗ DOI ↗

摘要

We investigate the decay of $\Lambda_b\to\Lambda\nu\bar{\nu}$ with the polarized baryons of $\Lambda_b$ and $\Lambda$ . With the most general hadronic form factors, we first study the decay branching ratio and then derive the longitudinal, normal and transverse polarizations of $\Lambda$ in terms of the spin unit vectors of $\Lambda_b$ and $\Lambda$ and the momentum of $\Lambda$ . A polarization of $\Lambda_b$ is also discussed.

关键词

hyperon polarization charmless b decays rare decays

引用

@article{arxiv.hep-ph/0012003,
  title  = {Study of $\Lambda_b\to\Lambda\nu\bar{\nu}$ with Polarized Baryons},
  author = {Chuan-Hung Chen and C. Q. Geng},
  journal= {arXiv preprint arXiv:hep-ph/0012003},
  year   = {2009}
}

备注

19 pages, 8 Figures, LaTex file, to be published in PRD

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