Signals of spontaneous R parity breaking at LEP and at a linear collider
نویسندگان
چکیده
منابع مشابه
Distinctive Signals of Spontaneous R-parity Breaking at Lep-ii
We consider the signals of pair-produced charginos in an ee collider, in a scenario where R-parity is spontaneously broken. The possibility of lepton-chargino mixing, together with the presence of a Majoron, opens up the two-body decay channel of a chargino into a tau and a Majoron. We have studied the regions where this is the dominant decay of a chargino, and have shown that over a large regi...
متن کاملTau Signals of R - parity breaking at LEP 200 Rohini
The detectability at LEP 200 of explicit R-parity breaking by tau-number (Lτ ) violating operators is considered. The assumption of Lτ -violation is motivated by the relative lack of constraints on such couplings but similar considerations apply to explicit Leor Lμ-violation. The LSP , now unstable, and not necessarily neutral, decays via Lτ -violating modes. Only signals from the production an...
متن کاملSignals of R-Parity Violation at a Muon Collider
We investigate the effects of R-parity-violating LLĒ and LQD̄ operators on the production of fermion pairs at a μμ collider with high energy and luminosity. We show that comparison of angular distributions leads to useful discovery limits for the R-parity-violating couplings, especially if the exchanged sfermions turn out to be heavy. Products of these couplings can also be probed well beyond pr...
متن کاملR – Parity Violating Signals for Chargino Production at LEP II
We study chargino pair production at LEP II in supersymmetric models with spontaneously broken R–parity. We perform signal and background analyses, showing that a large region of the parameter space of these models can be probed through chargino searches at LEP II. In particular, we determine the attainable limits on the chargino mass as a function of the magnitude of the effective bilinear R–p...
متن کاملSearch for R-parity violation at LEP
Abstract. We discuss the present status of the searches for R-parity violation at LEP. The following topics are considered: pair-production of supersymmetric particles via λ , λ ′ or λ ′′ couplings, sneutrino single production and spontaneous Rparity breaking. No evidence of signal is found in the total data sample at centre-ofmass energies up to √ s = 208 GeV, with an integrated luminosity of ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 1999
ISSN: 1434-6044,1434-6052
DOI: 10.1007/s100529800887