In a search for signatures of physics processes beyond the Standard Model, various eeqq vector contact-interaction hypotheses have been tested using the high-Q2 deep inelastic neutral-current e+p scattering data collected with the ZEUS detector at HERA. The data correspond to an integrated luminosity of 47:7pb−1 of e+p interactions at 300 GeV center-of-mass energy. No signicant evidence of a contact-interaction signal has been found. Limits at the 95% confidence level are set on the contact-interaction amplitudes. The effective mass scales Lambda corresponding to these limits range from 1:7TeV to 5TeV for the contact-interaction scenarios considered.
Search for contact interactions in deep inelastic e(+)p -> e(+)X scattering at HERA
BRUGNERA, RICCARDO;CARLIN, ROBERTO;STROILI, ROBERTO;
2000
Abstract
In a search for signatures of physics processes beyond the Standard Model, various eeqq vector contact-interaction hypotheses have been tested using the high-Q2 deep inelastic neutral-current e+p scattering data collected with the ZEUS detector at HERA. The data correspond to an integrated luminosity of 47:7pb−1 of e+p interactions at 300 GeV center-of-mass energy. No signicant evidence of a contact-interaction signal has been found. Limits at the 95% confidence level are set on the contact-interaction amplitudes. The effective mass scales Lambda corresponding to these limits range from 1:7TeV to 5TeV for the contact-interaction scenarios considered.Pubblicazioni consigliate
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