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Search for supersymmetric particles with R-parity violation in Z decays

Research output: Contribution to journalJournal article

  • ALEPH Collaboration
<mark>Journal publication date</mark>1995
<mark>Journal</mark>Physics Letters B
Issue number1-2
Number of pages15
Pages (from-to)238-252
<mark>Original language</mark>English


Searches for supersymmetric particles produced in e+e− interactions at the Z peak have been performed under the assumptions that R-parity is not conserved, that the dominant R-parity violating coupling involves only leptonic fields, and that the lifetime of the lightest supersymmetric particle can be neglected. In a data sample collected by the ALEPH detector at LEP up to 1993, and corresponding to almost two million hadronic Z decays, no signal was observed. As a result, supersymmetric particle masses and couplings are at least as well constrained as under the usual assumption of R-parity conservation.