Top-antitop Bound States
ORAL · Invited
Abstract
The discovery of a pseudoscalar top-antitop bound state at the LHC opens a new opportunity to study short-lived QCD bound states involving the top quark. I will present our calculations of the masses and annihilation widths of the lowest S-wave and P-wave states and assess their observability at the HL-LHC as well as at future lepton colliders. I will also discuss the implications of these bound-state properties for top-quark physics and for searches for physics beyond the Standard Model.
*This work is supported by the U.S. Department of Energy under the contract DE-SC-0017647 and DEAC02-06CH11357 at Argonne NationalLaboratory.
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Publication: arxiv:2506.14552
Presenters
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Yang Bai
- University of Wisconsin-Madison