Search for scalar top and scalar bottom quarks at
نویسندگان
چکیده
منابع مشابه
Searches for Scalar Top and Bottom Quarks at the Tevatron
Searches for the supersymmetric partners of top and bottom quarks using data up to 340 pb −1 taken at the Tevatron p ¯ p collider are described. We report on searches for scalar top quarks˜t in the decays˜t → c ˜ χ 0 1 and˜t → bl˜ν and for scalar bottom quarks˜b in the decay˜b → b ˜ χ 0 1. No evidence for a signal has been found, but improved exclusion regions have been derived in the framework...
متن کاملLight Scalar Top Quarks and Supersymmetric Dark Matter
A stable neutralino χ̃1, assumed to be the lightest supersymmetric particle, is a favored particle physics candidate for the cosmological Dark Matter. We study co– annihilation of the lightest neutralino with the lighter scalar top quark t̃1. We show that for natural values of the neutralino mass, ∼300 GeV, the χ̃1–t̃1 mass difference has to exceed ∼ 10 to 30 GeV if χ̃1 is to contribute significantl...
متن کاملSearch for third-generation leptoquarks and scalar bottom quarks in pp collisions at sqrt(s) = 7 TeV
Results are presented from a search for third-generation leptoquarks and scalar bottom quarks in a sample of proton-proton collisions at √ s = 7 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.7 fb−1. A scenario where the new particles are pair produced and each decays to a b quark plus a tau neutrino or neutralino is considered. The number of obse...
متن کاملSearch for the Production of Scalar Bottom Quarks in p p Collisions at ffiffi s p 1⁄4 1 : 96 TeV
T. Aaltonen, J. Adelman, B. Álvarez González, S. Amerio, D. Amidei, A. Anastassov, A. Annovi, J. Antos, G. Apollinari, A. Apresyan, T. Arisawa, A. Artikov, J. Asaadi, W. Ashmanskas, A. Attal, A. Aurisano, F. Azfar, W. Badgett, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, P. Barria, P. Bartos, G. Bauer, P.-H. Beauchemin, F. Bedeschi, D. Beecher, S. Behari, G. Bellettini, J. Bellinger, D. Be...
متن کاملSearch for a scalar bottom quark with mass 3
We report on a search for a supersymmetric B̃ meson with mass between 3.5 and 4.5 GeV/c2 using 4.52 fb of integrated luminosity produced at √ s = 10.52 GeV, just below the e+e− → BB̄ threshold, and collected with the CLEO detector. We find no evidence for a light scalar bottom quark.
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 1999
ISSN: 1434-6044
DOI: 10.1007/s100520050334