English

Light Stop Decays

High Energy Physics - Phenomenology 2015-09-16 v1

Abstract

If the stop is the next-to-lightest supersymmetric particle (NLSP) and the mass difference to the neutralino is smaller than the top mass, it can decay via flavour-violating decay modes to cχ~10/uχ~10c\tilde{\chi}^0_1/u\tilde{\chi}^0_1 or a four-body decay to bχ~10ffˉb\tilde{\chi}_1^0f\bar{f}', which above the WW boson threshold corresponds to the decay to bχ~10Wb\tilde{\chi}_1^0W. Improving on existing calculations for these decay modes, we analyse the branching ratios (BRs) for the respective decays and show that they can significantly deviate from one.

Keywords

Cite

@article{arxiv.1509.04604,
  title  = {Light Stop Decays},
  author = {Ramona Gröber},
  journal= {arXiv preprint arXiv:1509.04604},
  year   = {2015}
}

Comments

To appear in the proceedings of the 27th Rencontres the Blois on Particle Physics and Cosmology, May 31 - June 05, 2015

R2 v1 2026-06-22T10:57:20.486Z