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Hadronic decays of $\bm{\chi_{bJ}}$ into light bottom squarks

High Energy Physics - Phenomenology 2011-01-27 v2 High Energy Physics - Experiment

Abstract

We calculate the rates for inclusive hadronic decay of the three χbJ\chi_{bJ} states into a pair of light bottom squarks as a function of the masses of the bottom squark and the gluino. We include color-singlet and color-octet configurations. The color-octet contribution is found to be insignificant for the χb0\chi_{b0} but can dominate in the χb2\chi_{b2} case if current lattice estimates are used for the color-octet matrix element. In comparison with the standard model values, bottom squark decays can increase the predicted hadronic width of the χb0\chi_{b0} by as much as 35%, for very small bottom squark masses and gluino masses in the range of 12 GeV, but make a small contribution in the cases of χb1\chi_{b1} and χb2\chi_{b2}. Data from decays of the χbJ\chi_{bJ} states could provide significant new bounds on the existence and masses of supersymmetric particles.

Keywords

Cite

@article{arxiv.hep-ph/0203092,
  title  = {Hadronic decays of $\bm{\chi_{bJ}}$ into light bottom squarks},
  author = {Edmond L. Berger and Jungil Lee},
  journal= {arXiv preprint arXiv:hep-ph/0203092},
  year   = {2011}
}

Comments

19 pages, REVTeX 4, 3 figures. A few equations corrected; figures modified slightly; some additional explanatory material; references updated; typographical errors remedied. Accepted for publication in Phys Rev D