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 effects -- including Lamb shifts, hyperfine splitting structure, and partial decay widths corrections -- are incorporated up to approximately next-to-next-to-leading-order (NNLO) accuracy. Beyond the dominant diphoton and difermion decays, the rates of rare decay channels -- including Dalitz, radiative, triple-photon, double-Dalitz, four-fermion, and neutrinos final states -- are determined.

arXiv comment18 pages, 8 figures. Typos corrected

References in corpus (14)

• Precision physics of simple atoms: QED tests, nuclear structure and fundamental constants
• Radiative Corrections to the Muonium Hyperfine Structure. I. The ${\alpha }^2(Z\alpha )$ Correction
• HELAC-Onia: an automatic matrix element generator for heavy quarkonium physics
• Production of the Smallest QED Atom: True Muonium (mu^+ mu^-)
• Positronium hyperfine splitting: analytical value at m*alpha^6
• The bound mu+ mu- system
• Production of bound {${\mu }^{+}{\mu }^{-}$}-systems in relativistic heavy ion collisions
• Decay Rate and Hyperfine Structure of the bound mu+ mu- system
• Analytical formula for the Uehling potential
• Neutrino Decay of Positronium in the Standard Model and Beyond
• Electroweak Corrections to the True Muonium Hyperfine Splitting
• On the decays $B\to K^{(\ast )}+$ leptonium
• Hyperfine Splitting in True Muonium to $\mathcal{O}(m_{\mu }{\alpha }^6)$: Two Photon Annihilation Contribution from Other Flavors
• Production of $({\tau }^{+}{\tau }^{-}{)}_b$ in electron positron collisions

Cited by in corpus (10)

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• Prospects for ditauonium discovery at colliders
• Rare and exclusive few-body decays of the Higgs, Z, W bosons, and the top quark
• Exclusive photon-fusion production of even-spin resonances and exotic QED atoms in high-energy hadron collisions
• Novel method for identifying the heaviest QED atom
• Rare few-body decays of the Standard Model Higgs boson
• NLO Corrections to Dimuonium Production in Photon-Photon Collision
• Transition of dimuonium through foil
• Production of leptonium in heavy quarkonium decays
• Automated event generation for S-wave quarkonium and leptonium production in NRQCD and NRQED