Two-particle correlations with K0S, /, and charged hadrons as trigger particles in the transverse momentum range 8<16 GeV/c, and associated charged particles within 1<8 GeV/c, are studied at midrapidity in pp and central Pb–Pb collisions at a centre-of-mass energy per nucleon–nucleon collision √sNN = 5.02 TeV with the ALICE detector at the LHC. After subtracting the contributions of the flow background, the per-trigger yields are extracted on both the near and away sides, and the ratio in Pb–Pb collisions with respect to pp collisions (IAA) is computed. The per-trigger yield in Pb–Pb collisions on the away side is strongly suppressed to the level of IAA ≈ 0.6 for pT,assoc > 3 GeV/c as expected from strong in-medium energy loss, while an enhancement develops at low pT,assoc on both the near and away sides, reaching IAA ≈ 1.8 and 2.7 respectively. These findings are in good agreement with previous ALICE measurements from two-particle correlations triggered by neutral pions (π0–h) and charged hadrons (h–h) in Pb–Pb collisions at √sNN = 2.76 TeV. Moreover, the correlations with K0S mesons and / baryons as trigger particles are compared to those of inclusive charged hadrons. The results are compared with the predictions of Monte Carlo models.

Acharya S., Adamova D., Adler A., Aglieri Rinella G., Agnello M., Agrawal N., et al. (2023). Jet-like correlations with respect to KS0 and Λ (Λ ¯) in pp and central Pb–Pb collisions at √sNN=5.02 TeV. EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 83(6), 1-20 [10.1140/epjc/s10052-023-11614-8].

Jet-like correlations with respect to KS0 and Λ (Λ ¯) in pp and central Pb–Pb collisions at √sNN=5.02 TeV

Agrawal N.;Alici A.;Arcelli S.;Bellini F.;Carnesecchi F.;Colocci M.;Ercolessi F.;Giacalone M.;Jacazio N.;Malfattore G.;Rubini N.;Scioli G.;Strazzi S.;
2023

Abstract

Two-particle correlations with K0S, /, and charged hadrons as trigger particles in the transverse momentum range 8<16 GeV/c, and associated charged particles within 1<8 GeV/c, are studied at midrapidity in pp and central Pb–Pb collisions at a centre-of-mass energy per nucleon–nucleon collision √sNN = 5.02 TeV with the ALICE detector at the LHC. After subtracting the contributions of the flow background, the per-trigger yields are extracted on both the near and away sides, and the ratio in Pb–Pb collisions with respect to pp collisions (IAA) is computed. The per-trigger yield in Pb–Pb collisions on the away side is strongly suppressed to the level of IAA ≈ 0.6 for pT,assoc > 3 GeV/c as expected from strong in-medium energy loss, while an enhancement develops at low pT,assoc on both the near and away sides, reaching IAA ≈ 1.8 and 2.7 respectively. These findings are in good agreement with previous ALICE measurements from two-particle correlations triggered by neutral pions (π0–h) and charged hadrons (h–h) in Pb–Pb collisions at √sNN = 2.76 TeV. Moreover, the correlations with K0S mesons and / baryons as trigger particles are compared to those of inclusive charged hadrons. The results are compared with the predictions of Monte Carlo models.
2023
Acharya S., Adamova D., Adler A., Aglieri Rinella G., Agnello M., Agrawal N., et al. (2023). Jet-like correlations with respect to KS0 and Λ (Λ ¯) in pp and central Pb–Pb collisions at √sNN=5.02 TeV. EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 83(6), 1-20 [10.1140/epjc/s10052-023-11614-8].
Acharya S.; Adamova D.; Adler A.; Aglieri Rinella G.; Agnello M.; Agrawal N.; Ahammed Z.; Ahmad S.; Ahn S.U.; Ahuja I.; Akindinov A.; Al-Turany M.; Al...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/951154
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