Table of Contents
What is the magnetic moment of a muon?
It is defined to be aμ = (g–2)/2, where g is the gyromagnetic ratio of the muon – the number of Bohr magnetons, e/2m, which make up the muon’s magnetic moment.
What is anomalous magnetic moment of muon?
The recent measurement of the muon’s anomalous magnetic moment increases the tension with predictions from theory. The Dirac equation predicts that the muon’s magnetic moment has a gyromagnetic ratio, g, of exactly two.
What is the muon anomaly?
Muon g-2 (pronounced “gee minus two”) is a particle physics experiment at Fermilab to measure the anomalous magnetic dipole moment of a muon to a precision of 0.14 ppm, which will be a sensitive test of the Standard Model. Any deviation would point to as yet undiscovered subatomic particles that exist in nature.
What is a magnetic moment easy definition?
Definition of magnetic moment : a vector quantity that is a measure of the torque exerted on a magnetic system (such as a bar magnet or dipole) when placed in a magnetic field and that for a magnet is the product of the distance between its poles and the strength of either pole.
What is the magnetic dipole moment of an orbiting electron?
In atomic physics, the electron magnetic moment, or more specifically the electron magnetic dipole moment, is the magnetic moment of an electron caused by its intrinsic properties of spin and electric charge. The value of the electron magnetic moment is approximately −9.284764×10−24 J/T.
Are muons leptons?
The charged leptons are the electrons, muons, and taus. Each of these types has a negative charge and a distinct mass. Electrons, the lightest leptons, have a mass only 1/1,840 that of a proton. Muons are heavier, having more than 200 times as much mass as electrons.
Why is the magnetic neutron negative?
The existence of the neutron’s magnetic moment indicates the neutron is not an elementary particle, because for an elementary particle to have an intrinsic magnetic moment, it must have both spin and electric charge. The neutron has spin 1/2 ħ, but no net charge.
Why is IA magnetic moment?
The quantity IA plays the role of electric dipole moment in magnetostatics. It is defined as the magnetic moment (or magnetic dipole moment) of the loop. A current-carrying loop can be considered as a magnet having two poles.
Which modern theory explains the Lamb shift?
It can, however, be explained by a theory known as quantum electrodynamics—a theory whose development was intimately linked to experimental observation of the Lamb shift.