Bonn 2020 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 15: Heavy-Ion Collisions and QCD Phases III

HK 15.5: Talk

Tuesday, March 31, 2020, 18:15–18:30, J-HS F

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

When traversing the Quark-Gluon Plasma (QGP), partons lose energy via collisional and radiative processes. For both types of 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 not only the light-flavour but also the charm and bottom jet production in proton-proton collisions is thus inevitable for further investigations on particle energy losses.

Since B mesons have much larger life-times compared to other 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 an analysis on the performance of two bottom jet selection algorithms, the Track Counting and the Track Probability Tagger based on impact parameter spectra, will be presented for 13 TeV proton-proton collisions.