Abstract
A general method will be described to derive the angular distribution in the two-body decay of a particle with spin. Rotations of systems with angular momenta have already been introduced in Sect. 6.1.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Notes
- 1.
For a discussion on pure and mixed states and on the density matrix, see the Appendix F.
- 2.
The weight w describes the angular distributions only. The final state probability is obtained by multiplying with phase space factors and Breit-Wigner amplitudes for all decay steps.
- 3.
We now know that the asymmetry parameter α Ω in Ω−→ ΛK − is rather small (1.78 ± 0.25)% [5]. Hence the angular distribution of the Λ would be nearly isotropic, even if the Ω− hyperons were fully polarized.
References
Tanabashi, M., et al. (Particle Data Group): Phys. Rev. D 98, 030001 (2018)
Amsler, C., Bizot, J.C.: Comput. Phys. Commun. 30, 21 (1983)
Williams, W.S.C.: Nuclear and Particle Physics, p.155. Oxford University Press, Oxford (1991)
Batty, C.: J. Rep. Prog. Phys. 52, 1165 (1989)
Lu, L.C., et al.: Phys. Lett. B 617, 11 (2005)
Baubillier, M., et al.: Phys. Lett. 78B, 342 (1978)
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 2018 The Author(s)
About this chapter
Cite this chapter
Amsler, C. (2018). Decay Angular Distribution and Spin. In: The Quark Structure of Hadrons. Lecture Notes in Physics, vol 949. Springer, Cham. https://doi.org/10.1007/978-3-319-98527-5_18
Download citation
DOI: https://doi.org/10.1007/978-3-319-98527-5_18
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-98526-8
Online ISBN: 978-3-319-98527-5
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)