High mass dijet and ttbar resonance searches
Alex Melnitchouk (for the CDF, D0 Collaboration)
TL;DR
This paper reports on searches for high-mass resonances in dijet and ttbar channels using Tevatron data, setting limits on various new physics models without finding evidence of new particles.
Contribution
It provides the first comprehensive search for multiple resonance types in dijet and ttbar channels at the Tevatron, establishing new exclusion limits.
Findings
No evidence of new resonances was observed.
95% confidence level limits were set on numerous new physics models.
The analysis constrains parameters of excited quark, Z', W', and other hypothetical particles.
Abstract
We present searches for dijet and ttbar mass resonances using between 0.68 and 2.1 fb-1 of Tevatron Run II data collected by the CDF and D0 detectors. No evidence of new physics is found, and 95% C.L. limits are set on a number of new physics hypotheses, such as excited quark, Randal-Sundrum graviton, Z', W', color-octet technirho, axigluon and flavor-universal coloron, E6 diquark, quark compositeness, ADD and TeV-1-sized LED, massive gluon.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Dark Matter and Cosmic Phenomena · Astrophysics and Cosmic Phenomena