Total hadronic cross sections at high energies in holographic QCD

Abstract

We present our analysis on high energy hadron-hadron scattering in the framework of the holographic QCD. Combining the Brower-Polchinski-Strassler-Tan Pomeron exchange kernel and gravitational form factors of the involved hadrons which are obtained by using the bottom-up AdS/QCD models in the five-dimensional AdS space, we calculate the total cross sections at high energies. We show that our calculations for the nucleon-nucleon scattering agree with the experimental data including the recent ones taken by the TOTEM collaboration at the LHC. The present framework is applicable to any high energy process, in which the strong interaction can be approximated by the Pomeron exchange. We present the results for the pion-nucleon and pion-pion scattering as examples, which can be obtained without any additional parameter because all the adjustable parameters are fixed via the analysis on the nucleon-nucleon scattering. The resulting total cross section ratios are ${\sigma }_{tot}^{\pi N}/{\sigma }_{tot}^{NN}=0.63$ and ${\sigma }_{tot}^{\pi \pi }/{\sigma }_{tot}^{NN}=0.45$, respectively.

6 pages, 2 figures; v2: version accepted for publication in Phys. Lett. B, clarifications added to Section 2 and Section 3; v3: typos in Eq.(11) corrected

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• Determination of the entanglement entropy in elastic scattering using model-independent method for hadron femtoscopy
• Elastic proton-neutron and antiproton-neutron scattering in holographic QCD
• Elastic pion-proton and pion-pion scattering via the holographic Pomeron and Reggeon exchange
• Holographic description of elastic photon-proton and photon-photon scattering
• Mechanical properties of the proton from a deformed AdS holographic model
• DIS at small x and hadron-hadron scattering at high energies via the holographic Pomeron exchange
• Total Hadronic Cross Sections via the Holographic Pomeron Exchange
• Differential and total cross sections of high energy proton-proton scattering in holographic QCD