A Search for Charged Massive Stable Particles
نویسنده
چکیده
standard model. The hypothetical particles are assumed to be pair-produced in pp̄ collisions giving a signature of two reconstructed muon-like objects with high invariant mass and time-offlights indicative of heavy particles. Since no excess over background is observed, cross-section limits for the pair-production of stable staus and charginos are set. Mass limits of 140 GeV for a higgsino-like chargino and 174 GeV for a gaugino-like chargino are set.
منابع مشابه
Search for Long-lived Charged Massive Particles at CDF
A search for long-lived charged massive particles in CDF's Run1b data sample is presented. The search looks for highly ionizing tracks which would result from slowly moving massive particles. We search for strongly produced particles using a stable color triplet quark as a reference model, and a separate search was performed for weakly produced particles using long-lived sleptons in GaugeMediat...
متن کاملA New Method for Searching for Massive , Stable , Charged Elementary Particles
_ I describe a new method of searching for electrically charged and stable elementary particles with masses larger than about 1013 GeV/c2. This method is based on measuring the terminal velocity of uniform radius liquid drops falling in air. The range of this search method and concomitant imponderables are discussed. * Work supported by the Department of Energy contract DE-AC03-76SF005 15
متن کاملSearches for Long-lived Particles at the Tevatron Collider
Several searches for long-lived particles have been performed using data from pp̄ collisions from Run II at the Tevatron. In most cases, new analysis techniques have been developed to carry out each search and/or estimate the backgrounds. These searches expand the discovery potential of the CDF and D0 experiments to new physics that may have been missed by traditional search techniques. This rev...
متن کاملA search for charged massive long - lived particles at D 0
Results are presented on a search for charged massive long-lived particles (CMLLPs), based on 5.2 f b 1 of integrated luminosity collected with the D0 detector at the Fermilab Tevatron pp col-lider. CMLLPs are predicted by several theories in beyond the standard model scenarios. They behave like muons but are slower and highly ionizing. In the absence of any CMLLP signature we have put limits o...
متن کاملInflation with Low Reheat Temperature and Cosmological Constraint on Stable Charged Massive Particles
Abundance of stable charged massive particles (CHAMPs) is severely constrained by their searches inside sea water. We examine whether inflation with low reheat temperature can sufficiently dilute the abundance to evade this severe bound on CHAMPs, by taking into account their production and annihilation in a plasma during reheating phase. We argue that the abundance of the CHAMPs with mass less...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2005