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The soft and the hard pomerons in hadron elastic scattering at small t

J. R. Cudell·A. Lengyel·E. Martynov
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Abstract

We consider simple-pole descriptions of soft elastic scattering for pp, pbar p, pi+ p, pi- p, K+ p and K- p. We work at t and s small enough for rescatterings to be neglected, 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^2 < t < -0.1 GeV^2, 6 GeV<sqrt(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.

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J. R. Cudell, A. Lengyel, E. Martynov. 2006-03-30. The soft and the hard pomerons in hadron elastic scattering at small t. https://doi.org/10.1103/physrevd.73.034008

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