Could we learn more about HERA high $Q^2$ anomaly from LEP200 and TEVATRON? R-parity violation scenario
msra(1998)
摘要
The excess of high $Q^2$ events at HERA reported in the early 1997 by H1 and
ZEUS collaborations has become the subject of extensive studies in the
framework of several models related to new physics. Here we concentrate on the
most promising, from our point of view, model describing HERA anomaly. We
update our previous analysis and take into account new HERA statistics of the
1997 year. HERA events are considered within the R-parity broken SUSY model for
a specific scenario with several non-zero couplings. R-parity broken SUSY with
several non-zero couplings could explain both high $Q^2 e^+ + jets$ and
$\mu^+ + jets$ observed at HERA. The consequence of such a particular scenario
is the excess of high $Q^2$ di- or tri-jet events at HERA. The relation of this
scenario for LEP and TEVATRON colliders is considered. This study shows that if
a squark resonance does take place at HERA, supersymmetry with broken R-parity
can be revealed at either LEP200 or TEVATRON in the near future.
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关键词
new physics,high energy physics
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