Heavy-flavour leptons and non-prompt D mesons to investigate beauty-quark interaction in the QGP with ALICE

29.03.2023, 09:00
20m
Dalberg (Stadthalle)

Dalberg

Stadthalle

Talk Heavy flavor and quarkonia Parallel: Heavy Flavours & Quarkonia

Sprecher

Martin Völkl (Unversität Heidelberg)

Beschreibung

In this contribution, new results for beauty measurements with ALICE are presented. The production of beauty hadrons can be accessed with measurements of leptons from beauty- and charm-hadron decays as well as the reconstruction of non-prompt charmed hadrons.
We show the nuclear modification factor of electrons from beauty hadron decays in Pb-Pb collisions at $\sqrt{s_{\rm \scriptscriptstyle NN}} = 5.02~{\rm TeV}$, which gives an insight into the production and momentum distribution of beauty quarks via the decays of the different hadron species. In order to understand the contributions from the different hadrons, we also present the final results for non-prompt ${\rm D}_{\rm s}^+$ mesons, which are compared to the prompt contribution as well as the non-prompt ${\rm D}^0$ measurement.
The azimuthal anisotropy of beauty quarks via the measurement of the non-prompt ${\rm D}^0$ $v_2$ is also discussed. It helps to further investigate the degree of themalization of beauty quarks in the hot and dense QCD medium. Additionally, ALICE can measure muons from heavy-flavour hadron decays in the forward direction $-4<\eta<-2.5$. The new results for the azimuthal anisotropy of heavy flavor muon production in p-Pb collisions at $\sqrt{s_{\rm \scriptscriptstyle NN}} = 8.16~{\rm TeV}$ provide new insights into the appearance of collective effects in smaller systems, which will be discussed and compared with measurements in Pb-Pb and pp as well as with model calculations.

Affiliation

ALICE

Experiment/Theory ALICE

Hauptautor

Martin Völkl (Unversität Heidelberg)

Präsentationsmaterialien