We combine inclusive jet nuclear modification factors with energy-energy correlators to perform a data-driven extraction of the quark and gluon quenching factors and the medium resolution scale from the small-angle region. Taking coherent energy loss as a null hypothesis, we find jet quenching factors incompatible with Casimir scaling. Incorporating color decoherence through antenna energy loss improves the description of the data and restores Casimir scaling, providing evidence that the quark-gluon plasma partially resolves the internal structure of jets in heavy-ion collisions.
We present a theoretical framework for jet fragmentation in heavy-ion collisions based on the resummation of large energy logarithms. Exploiting the hierarchy of scales characteristic of jet quenching, we show that the jet function obeys the Banfi-Marchesini-Smye evolution equation, with medium-induced energy loss and...
P. Caucal, Kevin Eisenberg, Y. Mehtar-Tani· 2 citations· ⚡1
Using jet calculus at leading-logarithmic accuracy, we develop a generating-functional approach to describe the hard-collinear sector of jets propagating through the quark-gluon plasma. This framework yields coupled evolution equations for the jet nuclear modification factor and energy-energy correlators (EECs). We fir...
Energy-energy correlators probe perturbative and nonperturbative QCD regimes of jet formation through momentum-weighted angular correlations between hadrons. First measurements in light-quark-enriched jets are presented for inclusive, like-sign, and opposite-sign charged-hadron pairs, using proton-proton collisions at...
LHCb Collaboration R. Aaij, M. Abdelfatah, A. Abdelmotteleb et al.· 0 citations
We compute the thermal photon production rate from a chirally asymmetric quark gluon plasma. We estimate the hard part from scattering of chiral quarks and demonstrate the cut-off independence of the total thermal photon emission rate. This is achieved by combining the hard with the soft contribution evaluated in our p...
Sourav Duari, Nilanjan Chaudhuri, Pradip Roy et al.· Physical Review D· 1 citation
We compare our previous predictions for charged-hadron production in p-O collisions at an energy of TeV as published in 2025 with preliminary Run 3 data from ALICE and adapt the model parameters to the data. Our three-source model comprises a gluon-gluon central source and two valence-quark soft-gluon fragmentation sou...
Chuan-En Li, G. Wolschin· Europhysics letters· 0 citations
Jet production has been studied extensively in heavy-ion collisions to measure its modification in the presence of the quark–gluon plasma. Several recent measurements performed by the ATLAS experiment at the LHC are highlighted, including studies of the jet suppression as a function of jet radius and jet substructure....
A. Ogrodnik· Acta Physica Polonica B, Pro...· 0 citations
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