A Search for the Fourth SM Family Quarks through Anomalous Decays

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.

8 pages, 2 figures

References in corpus (9)

• Combination of Tevatron searches for the standard model Higgs boson in the W+W- decay mode
• Less space for a new family of fermions
• Precision Constraints on Extra Fermion Generations
• Search for Fermion-Pair Decays $Q\Qbar \to (\t\Wmp)(\tbar\Wpm)$ in Same-Charge Dilepton Events
• Search for production of single top quarks via flavor-changing neutral currents at the Tevatron
• Combined Tevatron upper limit on gg->H->W+W- and constraints on the Higgs boson mass in fourth-generation fermion models
• A Search for the Fourth SM Family: Tevatron still has a Chance
• OPUCEM: A Library with Error Checking Mechanism for Computing Oblique Parameters
• Bounding CKM Mixing with a Fourth Family

Cited by in corpus (4)

• Anomalous single production of fourth generation $t^{\prime }$ quarks at ILC and CLIC
• A Search for the Fourth SM Family: Tevatron still has a Chance
• Anomalous single production of fourth family up type quark associated with neutral gauge bosons at the LHC
• Analyzing the anomalous dipole moment type couplings of heavy quarks with FCNC interactions at the CLIC