Two-photon total annihilation of molecular positronium

Jesús Pérez-Ríos; Sherwin T. Love; Chris H. Greene

doi:10.1209/0295-5075/109/63002

Two-photon total annihilation of molecular positronium

Jesús Pérez-Ríos
, Sherwin T. Love
, Chris H. Greene

Physics and Astronomy

Purdue University

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The rate for complete two-photon annihilation of molecular positronium Ps₂ is reported. This decay channel involves a four-body collision among the fermions forming Ps₂, and two photons of 1.022 MeV, each, as the final state. The quantum electrodynamics result for the rate of this process is found to be Γ_Ps2→γγ = 9.0 × 10^-12 s^-1. This decay channel completes the most comprehensive decay chart for Ps₂ up to date.

Original language	English
Article number	63002
Journal	EPL
Volume	109
Issue number	6
DOIs	https://doi.org/10.1209/0295-5075/109/63002
State	Published - Mar 1 2015

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title = "Two-photon total annihilation of molecular positronium",

abstract = "The rate for complete two-photon annihilation of molecular positronium Ps2 is reported. This decay channel involves a four-body collision among the fermions forming Ps2, and two photons of 1.022 MeV, each, as the final state. The quantum electrodynamics result for the rate of this process is found to be ΓPs2→γγ = 9.0 × 10-12 s-1. This decay channel completes the most comprehensive decay chart for Ps2 up to date.",

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T1 - Two-photon total annihilation of molecular positronium

AU - Pérez-Ríos, Jesús

AU - Love, Sherwin T.

AU - Greene, Chris H.

PY - 2015/3/1

Y1 - 2015/3/1

N2 - The rate for complete two-photon annihilation of molecular positronium Ps2 is reported. This decay channel involves a four-body collision among the fermions forming Ps2, and two photons of 1.022 MeV, each, as the final state. The quantum electrodynamics result for the rate of this process is found to be ΓPs2→γγ = 9.0 × 10-12 s-1. This decay channel completes the most comprehensive decay chart for Ps2 up to date.

AB - The rate for complete two-photon annihilation of molecular positronium Ps2 is reported. This decay channel involves a four-body collision among the fermions forming Ps2, and two photons of 1.022 MeV, each, as the final state. The quantum electrodynamics result for the rate of this process is found to be ΓPs2→γγ = 9.0 × 10-12 s-1. This decay channel completes the most comprehensive decay chart for Ps2 up to date.

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DO - 10.1209/0295-5075/109/63002

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VL - 109

JO - EPL

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Two-photon total annihilation of molecular positronium

Abstract

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