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

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...

Full description

Saved in:
Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2000-05, Vol.14 (2), p.239-254
Main Author: J Breitweg et al
Format: Article
Language:English
Subjects:
Confidence intervals
Contact
Inelastic scattering
Luminosity
Ultrasonic testing
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 \(47.7\,{\rm pb}^{-1}\) 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.
ISSN:1434-6044
1434-6052
DOI:10.1007/s100520000336