ORBi: Cudell Jean-René - Soft and hard Pomerons in hadron elastic scattering at small t

Reference : Soft and hard Pomerons in hadron elastic scattering at small t


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
	To cite this reference:	http://hdl.handle.net/2268/2267

Title :	Soft and hard Pomerons in hadron elastic scattering at small t
Language :	English
Author, co-author :	Cudell, Jean-René [Université de Liège - ULg > Département d'astrophys.]
	Lengyel, A. [> > > >]
	Martynov, E. [> > > >]
Publication date :	Feb-2006
Journal title :	Physical Review. D
Publisher :	American Physical Society
Volume :	73
Issue/season :	3
Peer reviewed :	Yes
Audience :	International
ISSN :	1550-7998
City :	College Pk
Country :	U.S.A.
Keywords :	[en] elastic scattering ; pomeron ; analytic S matrix
Abstract :	[en] We consider simple-pole descriptions of soft elastic scattering for pp, (p) over barp, pi(+/-)p and K(+/-)p. We work at t and s small enough for rescatterings to be effectively absorbed in a simple-pole parametrization, and allow for the presence of a hard Pomeron. After building and discussing an exhaustive dataset, we show that simple poles provide an excellent description of the data in the region -0.5 GeV2<= t <= -0.1 GeV2, 6 GeV <= root s <= 63 GeV. We show that new form factors have to be used, and get information on the trajectories of the soft and hard Pomerons.
Target :	Researchers
Permalink :	http://hdl.handle.net/2268/2267
Other URL :	http://arxiv.org/abs/hep-ph/0511073

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