1996/09/30 by Gregory Mahlon, Gordon Kane, G. L. Kane · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.55.2779
published as Phys.Rev. D55 (1997) 2779-2791 · 45 pages, revtex, 15 figures included. Final version, as will appear in Phys. Rev. D. Contains an expanded introduction plus a few additional references
arxiv created 1996/12/04 · openalex publication_date 1997/03/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We describe a method to help the search for a light top squark (\stackrel\ifmmode \else \~\fiMt+\stackrel\ifmmode \else \~\fiMLSP<mt) at the Fermilab Tevatron. Traditional search methods rely upon a series of stringent background-reducing cuts which, unfortunately, leave very few signal events given the present data set. To avoid this difficulty, we instead suggest using a milder set of cuts, combined with a ``superweight,'' whose purpose is to discriminate between signal and background events. The superweight consists of a sum of terms, each of which are either zero or one. The terms are assigned event-by-event depending upon the values of various observables. We suggest a method for choosing the observables as well as the criteria used to assign the values such that the superweight is ``large'' for the supersymmetric signal and ``small'' for the standard model background. For illustration, we mainly consider the detection of tops squarks coming from top quark decay, making our analysis especially relevant to the W+2 jets top quark sample.