HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Preprints, Working Papers, ...

Ditauonium spectroscopy

Abstract : We examine the properties of ditauonium, an exotic atom consisting of a pair of opposite-sign $\tau$ leptons bound together by the quantum electrodynamics (QED) interaction in a hydrogen-like state. The energy levels, decay modes and associated partial widths, as well as total widths and lifetimes of the ortho- and para-ditauonium states are calculated. Higher-order QED corrections -- including Lamb shifts, hyperfine splitting structure, and rare partial decay widths -- are incorporated up to next-to-next-to-leading-order (NNLO) accuracy. Beyond the dominant diphoton and difermion decays, the rates of higher-order decay channels -- including Dalitz, radiative, triple-photon, double-Dalitz, four-fermion, and neutrinos final states -- are determined.
Complete list of metadata

Contributor : Inspire Hep Connect in order to contact the contributor
Submitted on : Monday, May 2, 2022 - 10:30:54 AM
Last modification on : Wednesday, May 4, 2022 - 10:07:00 PM

Links full text



David d'Enterria, Redamy Perez-Ramos, Hua-Sheng Shao. Ditauonium spectroscopy. 2022. ⟨hal-03656407⟩



Record views