Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 81: Invited Topical Talks 5 (joint session T/EP)

T 81.4: Eingeladener Vortrag

Donnerstag, 24. März 2022, 15:15–15:40, T-H15

Astroparticle physics at the LHC: Exploring the forward region with cross-section measurements — •Hans Dembinski — Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany

Astroparticle physics is the study of the non-thermal universe with gamma rays, neutrinos, and cosmic rays. Cosmic rays are abundantly produced in cosmic accelerators, like supernova remnants. Some gamma rays and neutrinos are produced indirectly in interactions of cosmic rays with matter in the source, and cosmic rays interact with Earth's atmosphere to produce air showers, which are observed by ground-based cosmic ray observatories and contribute the main background to gamma ray and neutrino observatories. QCD cross-sections for the forward production of hadrons with light and heavy flavor are therefore needed to interpret astroparticle measurements. The experiments at the Large Hadron Collider (LHC) have powerful instruments to measure forward production, but data are more sparse compared to central production. I will summarize the state-of-the-art of forward cross-section measurements at the LHC from the point of view of astroparticle physics and give an outlook into the opportunities in near future with the upcoming run of the LHC and the planned pilot run with oxygen beams.