Non-standard decays of vectorlike quarks

by Tanumoy Mandal

Monday 26 May 2025, 13:00 → 14:00 Europe/Stockholm

AlbaNova C5:1007 - ELPA (AlbaNova Main Building)

Searches for vectorlike quarks at the LHC have so far focused exclusively on their decays into Standard Model particles. However, current experimental data permit the existence of a low-mass weak-singlet scalar or gauge boson. If such a singlet state coexists with vectorlike top and bottom partners, it opens up the possibility that these heavy quarks predominantly decay into the singlet and a third-generation Standard Model quark. Scenarios like this can naturally arise in various frameworks, such as composite Higgs models, warped extra-dimensional models, and others. Despite this theoretical motivation, such non-standard decay channels of vectorlike quarks remain largely unexplored in current experimental searches. In this talk, I shall discuss some interesting and unexplored signatures of the exotic decay of vectorlike quarks that is dominant in a large region of the not-so-fine-tuned parameter space.

stockholm_tanumoy.pdf