Электронный каталог

Статья

Acharya, S.
Jet-Like Correlations with Respect to K*0&sub(S) and *L(*L^-) in pp and Central 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, G.Romanenko, B.Rumyantsev, A.Vodopyanov, [ALICE Collab.] // The European Physical Journal C [Electronic resource]. – 2023. – Vol.83, No.6. – P. 497. – URL: https://doi.org/10.1140/epjc/s10052-023-11614-8. – Bibliogr.: 70.

Two-particle correlations with K*0&sub(S), *L(*L^-), and charged hadrons as trigger particles in the transverse momentum range 8 < p&sub(T, trig) < 16 GeV/, and associated charged particles within 1 < p&sub(T, assoc) < 8 GeV/c, are studied at midrapidity in pp and central Pb–Pb collisions at a centre-of-mass energy per nucleon–nucleon collision *%s&sub(NN) =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 (I&sub(AA) is computed. The per-trigger yield in Pb–Pb collisions on the away side is strongly suppressed to the level of for I&sub(AA) *~ 0.6 for p&sub(T, assoc) > 3 GeV as expected from strong in-medium energy loss, while an enhancement develops at low p&sub(T, assoc) on both the near and away sides, reaching I&sub(AA) *~ 1.8 and 2.7 respectively. These findings are in good agreement with previous ALICE measurements from two-particle correlations triggered by neutral pions (–h) and charged hadrons (h–h) in Pb–Pb collisions at *%s&sub(NN) = 2.76 TeV. Moreover, the correlations with K*0&sub(S) mesons and *L/*L^- baryons as trigger particles are compared to those of inclusive charged hadrons. The results are compared with the predictions of Monte Carlo models.



Спец.(статьи,препринты) = С 346.2в - Взаимодействие протонов с протонами
Спец.(статьи,препринты) = С 343 е2 - Взаимодействие релятивистских ядер с ядрами
ОИЯИ = ОИЯИ (JINR)2023