München 2019 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 54: Poster

HK 54.10: Poster

Donnerstag, 21. März 2019, 16:30–19:00, Foyer Theresanium

Antideuteron annihilation with the ALICE detector material — •Anisa Dashi and Lucas Cordova Nyffenegger for the ALICE collaboration — Technical University Munich, Germany

Low energy antideuterons could be a unique probe for indirect search of dark matter. This measurement is limited by our understanding of the interaction of antideuteron with matter. There is no scattering data available with any material and therefore we propose to study the interaction of antideuterons with the detector material of the ALICE detector at the Large Hadron Collider.

In this poster, the first steps of the analysis are presented, starting from the identification of primary (anti-)protons and (anti-)deuterons produced in pp collisions at 13 TeV (both Minimum Bias and High Multiplicity) and pPb collisions at 5 TeV. The indications for antiparticle absorption in the ALICE detector material are discussed on the basis of antiparticle/particle ratios and simulations using the GEANT4 toolkit.

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