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HK: Fachverband Physik der Hadronen und Kerne

HK 2: Heavy-Ion Collisions and QCD Phases I

HK 2.2: Talk

Monday, August 30, 2021, 17:00–17:15, H1

Reconstruction of Bottom Jets in Proton-Proton Collisions at √s=13 TeV with ALICE — •Katharina Demmich for the ALICE collaboration — Westfälische Wilhelms-Universität Münster

When traversing the Quark-Gluon Plasma (QGP), partons lose energy via collisional and radiative processes. The amount of lost energy depends on the particle mass and manifests in a reduced jet multiplicity in heavy-ion collisions with respect to proton-proton collisions, for which no QGP is expected to form. A detailed knowledge about the charm and bottom-jet production in proton-proton collisions is thus inevitable for further investigations on particle energy loss within the QGP.

Owing to the relatively large lifetimes and the cascade of weak decays of B hadrons, transverse impact parameter spectra, as a measure for the distance between particle tracks and the primary vertex, offer a great opportunity to investigate the bottom-jet production. Results of a performance analysis of a bottom-jet selection algorithm based on transverse impact parameter spectra will be presented for 13 TeV proton-proton collisions.

supported by the DFG GRK2149 and BMBF ErUM FSP-T01 ALICE 0519PMCA1