Jet quenching as a probe of the initial stages in heavy-ion collisions
Andres, Carlota; Armesto, Néstor; Niemi, Harri; Paatelainen, Risto; Salgado, Carlos A. (2020). Jet quenching as a probe of the initial stages in heavy-ion collisions. Physics Letters B, Early online. DOI: 10.1016/j.physletb.2020.135318
Published inPhysics Letters B
© 2020 The Author(s)
Jet quenching provides a very flexible variety of observables which are sensitive to different energy- and time-scales of the strongly interacting matter created in heavy-ion collisions. Exploiting this versatility would make jet quenching an excellent chronometer of the yoctosecond structure of the evolution process. Here we show, for the first time, that a combination of jet quenching observables is sensitive to the initial stages of heavy-ion collisions, when the approach to local thermal equilibrium is expected to happen. Specifically, we find that in order to reproduce at the same time the inclusive particle production suppression, , and the high- azimuthal asymmetries, , energy loss must be strongly suppressed for the first ∼0.6 fm. This exploratory analysis shows the potential of jet observables, possibly more sophisticated than the ones studied here, to constrain the dynamics of the initial stages of the evolution.
Publication in research information system
MetadataShow full item record
Additional information about fundingWe acknowledge helpful discussions with J. Noronha-Hostler, computational resources from the CSC-IT Center for Science in Espoo, Finland, and financial support by the US DOE (CA, contract DEAC05-06OR23177 under which Jefferson Science Associates, LLC operates Jefferson Lab), the Academy of Finland (HN, project 297058), the ERC (RP, grant no. 725369), MICINN of Spain (NA, CAS, project FPA2017-83814-P and Unidad de Excelencia María de Maetzu MDM-2016-069), Xunta de Galicia (NA, CAS, Consellería de Educación) and FEDER (NA, CAS). This work has been performed within COST Action CA15213 THOR. ...
Showing items with similar title or keywords.
Andres, Carlota; Armesto, Néstor; Niemi, Harri; Paatelainen, Risto; Salgado, Carlos A. (Elsevier, 2020)Jet quenching provides a very flexible variety of observables which are sensitive to different energy- and time-scales of the strongly interacting matter created in heavy-ion collisions. Exploiting this versatility would ...
Constraints on jet quenching in p–Pb collisions at √sNN = 5.02 TeV measured by the event-activity dependence of semi-inclusive hadron-jet distributions ALICE Collaboration (Elsevier B.V., 2018)The ALICE Collaboration reports the measurement of semi-inclusive distributions of charged-particle jets recoiling from a high-transverse momentum trigger hadron in p–Pb collisions at √sNN = 5.02 TeV. Jets are reconstructed ...
ALICE collaboration (Springer, 2020)Measurement of Z-boson production in p-Pb collisions at √sNN = 8.16 TeV and Pb-Pb collisions at √sNN = 5.02 TeV is reported. It is performed in the dimuon decay channel, through the detection of muons with pseudorapidity ...
Jet-Fragmentation Transverse Momentum from Di-Hadrons Correlations in √s_NN = 5.02 TeV Pb-Pb Collisions Gilbert, Alexander Kevin (2020)The jets’ transverse structure in Pb-Pb collision system has been studied with jet-fragmentation transverse momentum (jT ) distribution. The data were collected from ALICE experiment at LHC in energy √s_NN = 5.02 TeV per ...
Coherent photoproduction of ρ0 vector mesons in ultra-peripheral Pb-Pb collisions at √sNN = 5.02 TeV ALICE collaboration (Springer, 2020)Cross sections for the coherent photoproduction of ρ0 vector mesons in ultra-peripheral Pb-Pb collisions at √sNN = 5.02 TeV are reported. The measurements, which rely on the π+π− decay channel, are presented in three regions ...