English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A search for charginos and neutralinos, predicted by supersymmetric theories,has been performed using a data sample of 10.3 pb^-1 at centre-of-mass energiesof sqrt(s) = 170 and 172 GeV with the OPAL detector at LEP. No evidence forthese particles has been found. The results are combined with those fromprevious OPAL chargino and neutralino searches at lower energies to obtainlimits. Exclusion regions at 95% C.L. of parameters of the MinimalSupersymmetric Standard Model are determined. Within this framework, fortan(beta) >= 1.0, lower mass limits are placed on the lightest chargino and thethree lightest neutralinos. The 95% C.L. lower mass limit on the lightestchargino, assuming that it is heavier than the lightest neutralino by more than10 GeV, is 84.5 GeV for the case of a large universal scalar mass (m_0 > ~1TeV) and 65.7 GeV for the smallest m_0 compatible with current limits on thesneutrino and slepton masses. The lower limit on the lightest neutralino massat 95% C.L. for tan(beta) >= 1.0 is 24.7 GeV for m_0 = 1 TeV and 13.3 GeV forthe minimum m_0 scenario. These mass limits are higher for increasing values oftan(beta). The interpretation of the limits in terms of gluino and scalar quarkmass limits is also given.

Search for chargino and neutralino production at