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Search for contact interactions in deep inelastic e(+)p - e(+)X scattering at HERA
Journal article   Open access   Peer reviewed

Search for contact interactions in deep inelastic e(+)p - e(+)X scattering at HERA

ZEUS Collaboration, J Repond and U Mallik
The European physical journal. C, Particles and fields, Vol.14(2), pp.239-254
05/01/2000
DOI: 10.1007/s100520000336

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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-Q(2) 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 significant 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 1.7 TeV to 5 TeV for the contact-interaction scenarios considered.
Physical Sciences Physics Physics, Particles & Fields Science & Technology

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