Phys. Rev. Lett. 75, 402–405 (1995)Determining the Phase of a Strong Scattering Amplitude from Its Momentum Dependence to Better Than 1°: The Example of Kaon RegenerationSee Also: Erratum Received 16 December 1994; revised 30 March 1995; published in the issue dated 17 July 1995 We quantitatively study dispersion relations giving the phase of a strong scattering amplitude from its momentum dependence. We consider C-odd contributions to neutral kaon scattering (regeneration) where accurate measurements of both amplitudes and phases are available. We find, somewhat surprisingly, that, even including many possibly corrupting effects, the uncertainty is well below 1°. This allows an accurate determination of the phase φ+- in kaon decay to test CPT; conversely, assuming CPT symmetry, new phenomena can be limited. © 1995 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.75.402
DOI:
10.1103/PhysRevLett.75.402
PACS:
14.40.Aq, 11.30.Er, 11.55.Fv, 12.40.Nn
See AlsoErratum: Roy A. Briere and Bruce Winstein, Determining the Phase of a Strong Scattering Amplitude from Its Momentum Dependence to Better Than 1°: The Example of Kaon Regeneration, Phys. Rev. Lett. 75, 2070 (1995). |
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