Muonium (/ mjuːˈoʊniəm /) is an exotic atom made up of an antimuon and an electron, [1] which was discovered in 1960 by Vernon W. Hughes [2] and is given the chemical symbol Mu.

Muonium, short-lived quasi-atom composed of a positive muon (an antiparticle), as nucleus, and an ordinary negative electron. It is formed when a positive muon captures an atomic electron after being slowed down in matter.

In particle physics, true muonium is a theoretically predicted exotic atom representing a bound state of an muon and an antimuon (μ + μ −). The existence of true muonium is well established theoretically within the Standard Model.

Jan 23, 2025 · Muonium is a unique atom made up of a positive muon and an electron. Unlike regular hydrogen, which has a proton, muonium is a lightweight and simple atom. It is often used by scientists to test the laws of physics because it lacks the complex structure of other atoms.

May 28, 2009 · True muonium, a long-theorized but never-seen atom, might be observed in future experiments, thanks to recent theoretical work by researchers at the Department of Energy's SLAC National Accelerator Laboratory and Arizona State University.

Nov 29, 2022 · By studying an exotic atom called muonium, researchers are hoping misbehaving muons will spill the beans on the Standard Model of particle physics. To make muonium, they use the most intense...

Oct 4, 2024 · In exotic atoms, one of the atomic electrons is replaced by a negatively charged particle, whereas muonium consists of a positive muon and an electron. After a general review of the theoretical and experimental aspects, the present knowledge of this field is summarized.

Muonium is defined as the bound state of a positive muon and an electron, allowing for theoretical study within pure Quantum Electrodynamics (QED) due to the absence of strong interactions.

Muonium is an exotic atom made up of an antimuon and an electron, [1] which was discovered in 1960 [2] and is given the chemical symbol Mu. During the muon's 2 µs lifetime, muonium can enter into compounds such as muonium chloride (MuCl) or sodium muonide (NaMu). [3]

Mar 1, 2024 · Muonium (\ (\mu ^+e^-\), chemical symbol Mu) is the atom consisting of a positive muon as the nucleus and a bound electron. It was discovered in 1960 by stopping positive muons in pure high pressure argon gas and observing one of its characteristics Larmor precession frequency (Hughes et al. 1960), see Sect. 7.3.