Электронный каталог

Статья

Acharya, S.
Measurement of Non-Prompt D*0-Meson Elliptic Flow in Pb-Pb Collisions at *%s&sub(NN)=5.02 TeV / S.Acharya, B.Batyunya, C.Ceballos Sanchez, R.A.Diaz, S.Grigoryan, A.Kondratyev, L.Malinina, K.Mikhaylov, P.Nomokonov, V.Pozdniakov, E.Rogochaya, A.Vodopyanov, [ALICE Collab.] // The European Physical Journal C [Electronic resource]. – 2023. – Vol.83, No.12. – P.1123. – URL: https://doi.org/10.1140/epjc/s10052-023-12259-3. – Bibliogr.:108.

The elliptic flow (v2) of D0 mesons from beauty- hadron decays (non-prompt D 0) was measured in midcentral (30–50%) Pb–Pb collisions at a centre-of-mass energy per nucleon pair √sNN = 5.02 TeV with the ALICE detector at the LHC. The D 0 mesons were reconstructed at midrapidity (|y| < 0.8) from their hadronic decay D0 → K−π+, in the transverse momentum interval 2 < pT < 12 GeV/c. The result indicates a positive v2 for non-prompt D0 mesons with a significance of 2.7σ . The non-prompt D 0 -meson v2 is lower than that of prompt non-strange D mesons with 3.2σ signif- icance in 2 < pT < 8 GeV/c, and compatible with the v2 of beauty-decay electrons. Theoretical calculations of beauty- quark transport in a hydrodynamically expanding medium describe the measurement within uncertainties.



ОИЯИ = ОИЯИ (JINR)2023
Спец.(статьи,препринты) = С 343 е2 - Взаимодействие релятивистских ядер с ядрами
Спец.(статьи,препринты) = С 346 г - Множественное рождение частиц