Caterina Fenu

Investigating Λ baryon production in p-Pb collisions in jets and the underlying event using angular correlations

De Falco, A.;Fionda, F. M.;Usai, G. L.;
2025-01-01

Abstract

First measurements of hadron- Lambda(h-Lambda) azimuthal angular correlations in p-Pb collisions at root s(NN) = 5.02 TeV using the ALICE detector at the Large Hadron Collider are presented. These correlations are used to separate the production of associated Lambda baryons into three different kinematic regions, namely those produced in the direction of the trigger particle (near side), those produced in the opposite direction (away side), and those whose production is uncorrelated with the jet axis (underlying event). The per-trigger associated Lambda yields in these regions are extracted, along with the near- and away-side azimuthal peak widths, and the results are studied as a function of associated particle pT and event multiplicity. Comparisons with the DPMJET event generator and previous measurements of the phi(1020) meson are also made. The final results indicate that strangeness production in the highest multiplicity p-Pb collisions is enhanced relative to low multiplicity collisions in both the jetlike regions and the underlying event. The production of Lambda relative to charged hadrons is also enhanced in the underlying event when compared to the jetlike regions. Additionally, the results hint that strange quark production in the away-side of the jet is modified by soft interactions with the underlying event.
2025
Inglese
111
1
015201
https://journals.aps.org/prc/abstract/10.1103/PhysRevC.111.015201
Esperti anonimi
scientifica
LONG-RANGE
CHARGED-PARTICLES
GLUON JETS
PROTON
QUARK
PION
DISTRIBUTIONS
MULTIPLICITY
DEPENDENCE
RAPIDITY
Acharya, S.; Adamova, D.; Agarwal, A.; Rinella, G. Aglieri; Aglietta, L.; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmad, S.; Ahn, S. U.; Ahuja, I.; Aki ...espandi
1.1 Articolo in rivista
info:eu-repo/semantics/article
1 Contributo su Rivista::1.1 Articolo in rivista
262
1066
none
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Questionario e social

Condividi su:
Impostazioni cookie