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Medium-induced modification of azimuthal correlations of electrons from heavy-flavor hadron decays with charged particles in Pb–Pb collisions at sNN=5.02 TeV.

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Title: Medium-induced modification of azimuthal correlations of electrons from heavy-flavor hadron decays with charged particles in Pb–Pb collisions at sNN=5.02 TeV.
Authors: Abualrob, I. J.1 (AUTHOR), Acharya, S.2 (AUTHOR), Aglieri Rinella, G.3 (AUTHOR), Aglietta, L.4 (AUTHOR), Agnello, M.5 (AUTHOR), Agrawal, N.6 (AUTHOR), Ahammed, Z.7 (AUTHOR), Ahmad, S.8 (AUTHOR), Ahuja, I.9 (AUTHOR), Akbar, Z.10 (AUTHOR), Akindinov, A.11 (AUTHOR), Akishina, V.12 (AUTHOR), Al-Turany, M.13 (AUTHOR), Aleksandrov, D.11 (AUTHOR), Alessandro, B.14 (AUTHOR), Alfanda, H. M.15 (AUTHOR), Alfaro Molina, R.16 (AUTHOR), Ali, B.8 (AUTHOR), Alici, A.6 (AUTHOR), Alkin, A.17 (AUTHOR)
Source: European Physical Journal C -- Particles & Fields. Jun2026, Vol. 86 Issue 6, p1-26. 26p.
Subjects: Hadron decay, Heavy ion collisions, Quark-gluon plasma, Particle physics
Abstract: The azimuthal-correlation distributions between electrons from the decays of heavy-flavor hadrons and associated charged particles in Pb–Pb collisions at s NN = 5.02 TeV are reported for the 0–10% and 30–50% centrality classes. This measurement provides access to the jet-like correlation observables in the heavy-flavor sector in Pb–Pb collisions. The analysis is performed for trigger electrons from heavy-flavor hadron decays with transverse momentum 4 < p T e < 16 GeV / c , considering associated particles within the transverse-momentum range 1 < p T assoc < 7 GeV / c , and a pseudorapidity difference of | Δ η | < 1 between the trigger electron and associated particles. The per-trigger nuclear modification factor ( I AA ) is calculated to compare the near- and away-side peak yields to those in pp collisions at s = 5.02 TeV. In 0–10% central collisions, the I AA indicates a hint of enhancement of associated-particle yields with p T < 3 GeV/c on the near side, and a suppression of yields with p T > 4 GeV/c on the away side. The I AA for electron triggers from heavy-flavor hadron decays is compared with that for light-flavor and strange-particle triggers to investigate the dependence on different fragmentation processes and parton-medium dynamics, and is found to be the same within uncertainties. [ABSTRACT FROM AUTHOR]
Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Medium-induced modification of azimuthal correlations of electrons from heavy-flavor hadron decays with charged particles in Pb–Pb collisions at sNN=5.02 TeV.
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  Data: The azimuthal-correlation distributions between electrons from the decays of heavy-flavor hadrons and associated charged particles in Pb–Pb collisions at s NN = 5.02 TeV are reported for the 0–10% and 30–50% centrality classes. This measurement provides access to the jet-like correlation observables in the heavy-flavor sector in Pb–Pb collisions. The analysis is performed for trigger electrons from heavy-flavor hadron decays with transverse momentum 4 &lt; p T e &lt; 16 GeV / c , considering associated particles within the transverse-momentum range 1 &lt; p T assoc &lt; 7 GeV / c , and a pseudorapidity difference of | Δ η | &lt; 1 between the trigger electron and associated particles. The per-trigger nuclear modification factor ( I AA ) is calculated to compare the near- and away-side peak yields to those in pp collisions at s = 5.02 TeV. In 0–10% central collisions, the I AA indicates a hint of enhancement of associated-particle yields with p T &lt; 3 GeV/c on the near side, and a suppression of yields with p T &gt; 4 GeV/c on the away side. The I AA for electron triggers from heavy-flavor hadron decays is compared with that for light-flavor and strange-particle triggers to investigate the dependence on different fragmentation processes and parton-medium dynamics, and is found to be the same within uncertainties. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;Copyright of European Physical Journal C -- Particles &amp; Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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