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Ditauonium spectroscopy
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DOI：10.1140/epjc/s10052-022-10831-x.png)
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摘要
En 中文
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.
Keyword:
RADIATIVE-CORRECTIONS
BOUND-STATE
MATRIX-ELEMENT
HELAC-ONIA
DECAY
POSITRONIUM
MUONIUM
GENERATOR
期刊
IF:
4.8
论文数:
1.8W
被引数:
4.7W
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