R-parity-breaking SUSY solution to theRband ALEPH anomalies
نویسندگان
چکیده
منابع مشابه
R-parity-breaking SUSY solution to the Rb and ALEPH anomalies.
We discuss an optimal R-parity breaking SUSY solution to the Rb excess as well as the ALEPH 4-jet anomaly. The latter arises from the pair production of stop via chargino decay at LEP1.5, followed by its R–violating decay into a light quark pair. The model satisfies top quark and Z–boson decay constraints along with gaugino mass unification. CERN-TH/96-203 August, 1996 [email protected] dpro...
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We have studied the predictions for the LSP decay within the framework of a radiatively broken unified supergravity model without R-parity. Assuming that Higgs/slepton mixing is the only source of R-parity breaking and responsible for the observed neutrino oscillations we obtain predictons for the LSP life-time and branching fractions.
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We review briefly the indications for some relatively light superpartners based on the Rb anomaly and discuss the dependence of the potential increase in Rb on the assumption about R−parity (non)conservation. We point out that the exotic 4-jet events reported by ALEPH may constitute a signal for supersymmetry with such a light spectrum and with explicitly broken R−parity. A parton level simulat...
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We review various features of the R-parity breaking phenomenology, with particular attention to the low energy observables, and to the patterns of the R-parity breaking interactions that arise in Grand Unified models.
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1996
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.54.6797