@article{f5d09550b347499bb6031ad44f835104,
title = "Search for jet quenching effects in high-multiplicity pp collisions at √s = 13 TeV via di-jet acoplanarity",
abstract = "The ALICE Collaboration reports a search for jet quenching effects in high-multiplicity (HM) proton-proton collisions at √s = 13 TeV, using the semi-inclusive azimuthal-difference distribution ∆φ of charged-particle jets recoiling from a high transverse momentum (high-pT,trig) trigger hadron. Jet quenching may broaden the ∆φ distribution measured in HM events compared to that in minimum bias (MB) events. The measurement employs a pT,trig-differential observable for data-driven suppression of the contribution of multiple partonic interactions, which is the dominant background. While azimuthal broadening is indeed observed in HM compared to MB events, similar broadening for HM events is observed for simulations based on the PYTHIA 8 Monte Carlo generator, which does not incorporate jet quenching. Detailed analysis of these data and simulations show that the azimuthal broadening is due to bias of the HM selection towards events with multiple jets in the final state. The identification of this bias has implications for all jet quenching searches where selection is made on the event activity.",
keywords = "Hadron-Hadron Scattering, Jets, Quark Gluon Plasma",
author = "{ALICE Collaboration} and S. Acharya and D. Adamov{\'a} and {Aglieri Rinella}, G. and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, {S. U.} and I. Ahuja and A. Akindinov and M. Al-Turany and D. Aleksandrov and B. Alessandro and Alfanda, {H. M.} and {Alfaro Molina}, R. and B. Ali and A. Alici and N. Alizadehvandchali and A. Alkin and J. Alme and G. Alocco and T. Alt and Altamura, {A. R.} and I. Altsybeev and Alvarado, {J. R.} and Anaam, {M. N.} and C. Andrei and N. Andreou and A. Caliva and P. Christakoglou and T. Chujo and A. Dobrin and L. Fabbietti and A. Grelli and Jacobs, {P. M.} and S. Jaelani and Keijdener, {D. L.D.} and Kuijer, {P. G.} and {La Pointe}, {S. L.} and G. Luparello and S. Muhuri and {Oliveira Da Silva}, {A. C.} and T. Peitzmann and N. Poljak and S. Qiu and Sas, {M. H.P.} and Snellings, {R. J.M.} and {van Doremalen}, {L. V.R.} and L. Vermunt and M. Verweij and Bas Hofman and Johanna L{\"o}mker and Olaf Massen and {van Weelden}, Gijs and {van Leeuwen}, Marco and Rik Spijkers and Mariia Selina and Artem Isakov and {Pliatskas Stylianidis}, Christos",
note = "Publisher Copyright: {\textcopyright} The Author(s) 2024.",
year = "2024",
month = may,
doi = "10.1007/JHEP05(2024)229",
language = "English",
volume = "2024",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
publisher = "Springer Verlag",
number = "5",
}