Abstract
In this chapter we use the baryon SU(6) wavefunctions to predict the magnetic dipole moments of the long-lived baryons and to compare with experimental data.
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Notes
- 1.
Since CP conservation is a very good approximation, one also expects for the decay of the antihyperon \(\overline {\Lambda }\to \overline {p}\pi ^+\) an angular distribution of the form \(1 + \overline {\alpha }_\Lambda \cos \theta \) where \(\overline {\alpha }_\Lambda = -\alpha _\Lambda \). This is because parity reverses the (polar) momentum vectors but not the (axial) spin vectors. For \(\overline {\Lambda }\) decay the tabulated value is \(\overline {\alpha }_\Lambda \) = –0.71 ± 0.08 [6] which is within large errors in agreement with CP invariance.
- 2.
BESIII reports the larger value α Λ = 0.75 ± 0.01 from J∕ψ decay into \(\Lambda \overline {\Lambda }\) [9].
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Amsler, C. (2018). Magnetic Moments of Baryons. In: The Quark Structure of Hadrons. Lecture Notes in Physics, vol 949. Springer, Cham. https://doi.org/10.1007/978-3-319-98527-5_14
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DOI: https://doi.org/10.1007/978-3-319-98527-5_14
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