On the influence ofK + diffractive dissociation (Q production) on a test of extraction of ?+ p elastic scattering fromK+ p ? K* (890)?+ p at 12 GeV/c by Chew-Low extrapolation
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説明
In a study of the reaction K+ p → K* (890)π+ p at 12 GeV/c it has been shown that the extrapolated moments in thet channel for the π+ p system do not agree very well with those calculated from the real π+ p elastic scattering phase shifts for π+ p effective masses larger than 1.4 GeV, and that theQ is dominant in this region even for very small momentum transfer. In the present work it is shown that a simple parametrization of theQ leads to a considerably better description of the extrapolated 〈Y 0 2 〉, 〈Y 0 3 〉 and 〈Y 0 4 〉 moments. Furthermore it is shown that the dominance of theQ in this region will lead to high order moments at low mass in thes-channel frame.
収録刊行物
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- Zeitschrift f�r Physik C Particles and Fields
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Zeitschrift f�r Physik C Particles and Fields 60 369-374, 1993-06-01
Springer Science and Business Media LLC
