arXiv:2112.12138·v2·High Energy Physics — Phenomenology
Antiproton production with a fixed target and search for superheavy particles at the LHC
A. B. Kurepin (1)🇷🇺 · N. A. Kurepin (2)🇷🇺 · K. A. Skazytkin (2) ((1) Institute for Nuclear Research, Moscow, Russia (2) Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia)🇷🇺
Abstract
A proposal for an experiment to measure the cross section of antiproton production in a proton-nuclear collision in a kinematically forbidden region for nucleon-nucleon interaction on a fixed LHC target is considered. It is shown that this process can be separated from the kinematically allowed production process using the existing detectors of the ALICE facility at a proton energy of 7 TeV with a fixed nuclear target. Assuming the scale dependence of the cross section, the data obtained can be used to estimate the subthreshold cross section for the production of superheavy particles with a mass of several tens of TeV in the LHC lead nucleus beam.
Comments: 7 pages, 4 figures