A Search for the Fourth SM Family Quarks through Anomalous Decays
M. Sahin (TOBB University of Economics, Technology, Physics, Division, Ankara, Turkey), S. Sultansoy (TOBB University of Economics and, Technology, Physics Division, Ankara, Turkey, Institute of Physics,, National Academy of Sciences, Baku, Azerbaijan), S. Turkoz (Ankara
TL;DR
This paper explores the potential to detect or exclude fourth-generation down quarks with masses up to 450 GeV through anomalous decay channels at the Tevatron collider, highlighting a new search strategy.
Contribution
It demonstrates that anomalous decays could be the dominant detection mode for fourth-family quarks and proposes a method for their observation at existing colliders.
Findings
Fourth family quarks could be observed at Tevatron
Anomalous decays can dominate for high-mass quarks
Detection possible before LHC operation
Abstract
The existence of fourth family follows from the basics of the Standard Model. Because of the high masses of the fourth family quarks, their anomalous decays could be dominant, if certain criteria are met. This will drastically change the search strategy at hadron colliders. We show that the fourth SM family down quarks with masses up to 400-450 GeV can be observed (or excluded) via anomalous decays by Tevatron before the LHC.
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