What are the anti-particles of K (L, S)?

Jul, 1990
14 pages
Published in:
  • Mod.Phys.Lett.A 6 (1991) 2741-2748
Report number:
  • UR-1180,
  • ER-13065-638

Citations per year

1993199720012005200710
Abstract: (WSP)
We study the consequences of an anti-unitary symmetry such as CPT for an unstable quantum system described by a non-self-adjoint Hamiltonian. It is shown that CPT invariance by itself does not imply that every particle has an anti-particle of equal mass and life-time. In particular, the neutral kaons KL and KS do not have anti-particles even when CPT is conserved.
  • invariance: CPT
  • symmetry: model
  • K0(L): antiparticle
  • K0(S): antiparticle
  • strangeness
  • effective Hamiltonian
  • mass
  • lifetime
  • numerical calculations