Hard probe path lengths and event-shape engineering of the quark-gluon plasma

Abstract

As particles traverse the quark-gluon plasma (QGP) formed during a heavy ion collision they undergo energy loss depending on the distance travelled. We study several temperature- and velocity-weighted path length distributions of non-interacting particles as they traverse the plasma using the Trajectum heavy ion code, including those of back-to-back path lengths. We use event-shape engineering (ESE) in combination with in-plane versus out-of-plane selection to accurately control these path lengths. Lastly, we show how soft observables depend on the different ESE classes.

arXiv comment8 pages, 7 figures. Trajectum can be downloaded at https://sites.google.com/view/govertnijs/trajectum, output files and plotting routines at http://wilkevanderschee.nl/. v2: matches published version

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Cited by in corpus (3)

• Flavor and path-length dependence of jet quenching from inclusive jet and γ-jet suppression
• Statistical analysis of pQCD energy loss across system size, flavor, $\sqrt{s_{NN}}$, and $p_T$
• Modification of charged-particle jets in event-shape engineered Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV