Prospects for measuring exclusive diffractive $η,η'$ at the LHC
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arXiv
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866918461122281472 |
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| author | Schicker, Rainer |
| author_facet | Schicker, Rainer |
| contents | Central exclusive diffractive production in proton-proton collisions
at hadron colliders is characterised by hadronic activity at or close to
midrapidity, and by the two forward scattered protons, or their remnants.
In such events, no particles are produced between the midrapidity system
and the forward beam particles. These events can hence be identified with
appropriately placed detectors for measuring the forward scattered protons,
or their remnants, and a detector system covering the midrapidity range.
At the energies of the LHC, central diffractive production in proton-proton
collisions is dominated by pomeron-pomeron fusion. The description of the
pomeron within the Regge approach is summarized, and the feasibility of
identifying pseudoscalar mesons $η,η'$ in pomeron-pomeron fusion
is studied for determining the spin structure of the pomeron. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_20037 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Prospects for measuring exclusive diffractive $η,η'$ at the LHC Schicker, Rainer High Energy Physics - Experiment High Energy Physics - Phenomenology Central exclusive diffractive production in proton-proton collisions at hadron colliders is characterised by hadronic activity at or close to midrapidity, and by the two forward scattered protons, or their remnants. In such events, no particles are produced between the midrapidity system and the forward beam particles. These events can hence be identified with appropriately placed detectors for measuring the forward scattered protons, or their remnants, and a detector system covering the midrapidity range. At the energies of the LHC, central diffractive production in proton-proton collisions is dominated by pomeron-pomeron fusion. The description of the pomeron within the Regge approach is summarized, and the feasibility of identifying pseudoscalar mesons $η,η'$ in pomeron-pomeron fusion is studied for determining the spin structure of the pomeron. |
| title | Prospects for measuring exclusive diffractive $η,η'$ at the LHC |
| topic | High Energy Physics - Experiment High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2604.20037 |