A phenomenological prescription for Regge cuts

Ringland, G. A. ; Roberts, R. G. ; Roy, D. P. ; Tran Thanh Van, J. (1972) A phenomenological prescription for Regge cuts Nuclear Physics B, 44 (2). pp. 395-412. ISSN 0550-3213

Full text not available from this repository.

Official URL: http://linkinghub.elsevier.com/retrieve/pii/055032...

Related URL: http://dx.doi.org/10.1016/0550-3213(72)90125-3


We attribute the failure of the old Reggeized absorption model to the wrong relative phase of pole and cut. We propose a model for vector and tensor exchange in which the old absorption model is used to generate the cut coming from the component of the pole term with phase e−iπα(t) [planar duality diagram]. However, the absorption model cut obtained from the constant phase part of the pole term [non-planar duality diagram] is rotated in phase by ½ π . This model may be applied over a wide range of energy, but not, by crossing symmetry, at infinitely high energies. This prescription is used to discuss 0 + ½+ → 0+ ½+ reactions using a dual pole input with wrong signature nonsense zeros and SU(3) constraints. We are able to obtain the πp → π0n polarization and also the cross section inequalities and polarizations of hypercharge exchange reactions. Further, this model gives a quantitatively better understanding of the crossover zeros. An additional bonus is that from a nonsense choosing P' input we obtain a P' amplitude qualitatively similar to that found by FESR and the no-compensation form required by pure pole fits. Predictions of polarization in K̅N and KN charge exchange and πN → ηN are given.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:41072
Deposited On:26 May 2011 08:33
Last Modified:26 May 2011 08:33

Repository Staff Only: item control page