KIT | KIT-Bibliothek | Impressum | Datenschutz

Measurements of azimuthal anisotropy of nonprompt D$^0$ mesons in PbPb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV

Tumasyan, A. ; Adam, W.; Andrejkovic, J. W.; Bergauer, T.; Chatterjee, S.; Damanakis, K.; Dragicevic, M.; Escalante Del Valle, A.; Hussain, P. S.; Jeitler, M.; Krammer, N.; Lechner, L.; Liko, D.; Mikulec, I.; Paulitsch, P.; Pitters, F. M.; Schieck, J.; Schöfbeck, R.; Schwarz, D.; ... mehr

Abstract:

Measurements of the elliptic (𝑣$_2$) and triangular (𝑣$_3$) azimuthal anisotropy coefficients are presented for D$_0$
mesons produced in b hadron decays (nonprompt D$_0$ mesons) in lead-lead collisions at $\sqrt{s_{NN}}$ = 5.02 TeV.
The results are compared with previously published charm meson anisotropies measured using prompt D$_0$
mesons. The data were collected with the CMS detector in 2018 with an integrated luminosity of 0.58 nb$^{-1}$.
Azimuthal anisotropy is sensitive to the interactions of quarks with the hot and dense medium created in
heavy ion collisions. Comparing results for prompt and nonprompt D$^0$ mesons can assist in understanding
the mass dependence of these interactions. The nonprompt results show lower magnitudes of 𝑣$_2$ and 𝑣$_3$ and
weaker dependences on the meson transverse momentum and collision centrality than those found for prompt
D$_0$ mesons. The results are in agreement with theoretical predictions that include a mass dependence in the
interactions of quarks with the medium.


Verlagsausgabe §
DOI: 10.5445/IR/1000168850
Veröffentlicht am 05.03.2024
Originalveröffentlichung
DOI: 10.1016/j.physletb.2023.138389
Dimensions
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Institut für Experimentelle Teilchenphysik (ETP)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Scientific Computing Center (SCC)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 03.2024
Sprache Englisch
Identifikator ISSN: 0370-2693, 0031-9163, 1873-2445
KITopen-ID: 1000168850
Erschienen in Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Verlag North-Holland Publishing
Band 850
Seiten Art.-Nr.: 138389
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 12.02.2024
Nachgewiesen in Dimensions
Scopus
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page