Reference : New analytic unitarization schemes
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/17274
New analytic unitarization schemes
English
Cudell, Jean-René mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Interactions fondamentales en physique et astrophysique >]
Predazzi, E. [> > > >]
Selyugin, O. V. [> > > >]
2009
Physical Review. D : Particles and Fields
American Physical Society
79
034033
Yes
International
0556-2821
College Park
MD
[en] Unitarisation ; Eikonal ; High-energy scattering
[en] We consider two well-known classes of unitarization of Born amplitudes of hadron elastic scattering. The standard class, which saturates at the black disk limit includes the standard eikonal representation, while the other class, which goes beyond the black-disk limit to reach the full unitarity circle, includes the U matrix. It is shown that the basic properties of these schemes are independent of the functional form used for the unitarisation, and that U matrix and eikonal schemes can be extended to have similar properties. A common form of unitarisation is proposed interpolating between both classes. The correspondence with different nonlinear equations are also briefly examined.
Researchers
http://hdl.handle.net/2268/17274

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