Soft and hard Pomerons in hadron elastic scattering at small t

Journal Article · Wed Feb 01 00:00:00 EST 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.73.034008· OSTI ID:20776650

Cudell, J R ^[1]; Lengyel, A ^[2]; Martynov, E ^[3]

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1. Physique theorique fondamentale, Dep. de Physique, Universite de Liege, Allee du 6 Aout 17, bat. B5a, B-4000 Liege 1 (Belgium)
2. Institute of Electron Physics, Universitetska 21, UA-88000 Uzhgorod (Ukraine)
3. Bogolyubov Institute for Theoretical Physics, UA-03143 Kiev (Ukraine)

We consider simple-pole descriptions of soft elastic scattering for pp, pp, {pi}{sup {+-}}p and K{sup {+-}}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 GeV{sup 2}{<=}t{<=}-0.1 GeV{sup 2}, 6 GeV{<=}{radical}(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.

• OSTI ID: 20776650
• Journal Information: Physical Review. D, Particles Fields, Vol. 73, Issue 3; Other Information: DOI: 10.1103/PhysRevD.73.034008; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELASTIC SCATTERING
FORM FACTORS
GEV RANGE
KAONS MINUS
KAONS PLUS
PION-PROTON INTERACTIONS
PIONS MINUS
PIONS PLUS
POMERANCHUK PARTICLES
PROTON-PROTON INTERACTIONS
PROTONS
RESCATTERING
TRANSVERSE MOMENTUM