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 root 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.

Measurements of azimuthal anisotropy of nonprompt D0 mesons in PbPb collisions at √𝑠NN=5.02TeV / 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., Sonawane, M., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 850:(2024), pp. 1-25. [10.1016/j.physletb.2023.138389]

Measurements of azimuthal anisotropy of nonprompt D0 mesons in PbPb collisions at √𝑠NN=5.02TeV

Del Re, D.;Organtini, G.;Paramatti, R.;Quaranta, C.;Rahatlou, S.;Santanastasio, F.;
2024

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 root 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.
2024
CMS; heavy ions; QPG; flow; heavy flavor
01 Pubblicazione su rivista::01a Articolo in rivista
Measurements of azimuthal anisotropy of nonprompt D0 mesons in PbPb collisions at √��NN=5.02TeV / 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., Sonawane, M., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 850:(2024), pp. 1-25. [10.1016/j.physletb.2023.138389]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1720097
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