TY - JOUR
T1 - New parton model for the soft interactions at high energies
T2 - The odderon
AU - Gotsman, E.
AU - Levin, E.
AU - Potashnikova, I.
N1 - Publisher Copyright:
© 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/" Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP
PY - 2020/5/1
Y1 - 2020/5/1
N2 - In this paper we discuss the odderon contribution in our model [E. Gotsman, E. Levin, and I. Potashnikova, Eur. Phys. J. C 79, 192 (2019)EPCFFB1434-604410.1140/epjc/s10052-019-6699-2] that gives a fairly good description of σtot, σel, and Bel for proton-proton scattering. We show that the shadowing corrections are large, and induce considerable dependence on energy for the odderon contribution, which in perturbative QCD does not depend on energy. This energy dependence is in agreement with the experimental data for ρ=Re/Im, assuming that the odderon gives a contribution of about 1 mb at W=7 TeV. This differs greatly with our estimates for a CGC based model. We reproduce the main features of the t-dependence that are measured experimentally: the slope of the elastic cross section at small t, the existence of the minima in t-dependence which is located at |t|min=0.52 GeV2 at W=7 TeV; and the behavior of the elastic cross section at |t|>|t|min. The real part of the elastic amplitude turns out to be much smaller than the experimental one. Consequently, to achieve a description of the data, it is necessary to add an odderon contribution.
AB - In this paper we discuss the odderon contribution in our model [E. Gotsman, E. Levin, and I. Potashnikova, Eur. Phys. J. C 79, 192 (2019)EPCFFB1434-604410.1140/epjc/s10052-019-6699-2] that gives a fairly good description of σtot, σel, and Bel for proton-proton scattering. We show that the shadowing corrections are large, and induce considerable dependence on energy for the odderon contribution, which in perturbative QCD does not depend on energy. This energy dependence is in agreement with the experimental data for ρ=Re/Im, assuming that the odderon gives a contribution of about 1 mb at W=7 TeV. This differs greatly with our estimates for a CGC based model. We reproduce the main features of the t-dependence that are measured experimentally: the slope of the elastic cross section at small t, the existence of the minima in t-dependence which is located at |t|min=0.52 GeV2 at W=7 TeV; and the behavior of the elastic cross section at |t|>|t|min. The real part of the elastic amplitude turns out to be much smaller than the experimental one. Consequently, to achieve a description of the data, it is necessary to add an odderon contribution.
UR - http://www.scopus.com/inward/record.url?scp=85085902670&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.101.094021
DO - 10.1103/PhysRevD.101.094021
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AN - SCOPUS:85085902670
SN - 2470-0010
VL - 101
JO - Physical Review D
JF - Physical Review D
IS - 9
M1 - 094021
ER -