Speaker
Dr
Anton Bogomyagkov
(Budker Institute of Nuclear Physics)
Description
From six leptonic atoms (e^+ e^- ), (μ^+ e^- ), (μ^+ μ^- ), (τ^+ e^- ), (τ^+ μ^- ), (τ^+ τ^- ) only positronium (e^+ e^- ) and muonium (μ^+ e^- ) were observed. Observation and study of dimuonium (μ^+ μ^- ) will test QED and quantum mechanics computations in the new regime. Dimuonium radius is 200 times smaller than positronium; therefore, it has a higher new-physics reach potential in comparison with other exotic atoms. We propose a low energy e^+ e^- collider for production of the not yet observed (μ^+ μ^- ) bound system. Low beam energy E_beam≈400 MeV and small circumference Π≈30 m of the machine make it inexpensive to manufacture and operate. Large angle (〖75〗^∘) crossing of e^+ e^- beams produces dimuonium with non-zero momentum shifting decay point from beams collision area and providing effective suppression of the main source of background elastic e^+ e^- scattering. The peak luminosity at μ^+ μ^- production threshold is 8×〖10〗^31 cm^(-2) s^(-1). Reversing one of the beams direction allows to study π^± and η mesons with high luminosity.
Primary author
Dr
Anton Bogomyagkov
(Budker Institute of Nuclear Physics)
Co-authors
Dr
Alexander Milstein
(BINP)
Prof.
Eugeny Levichev
(BINP)
Mr
Sergej Sinyatkin
(BINP)
Dr
Vladimir Druzhinin
(BINP)
