English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

This letter presents a measurement of the nuclear modification factor oflarge-radius jets in $\sqrt{s_\mathrm{NN}} = 5.02$ TeV Pb+Pb collisions by theATLAS experiment. The measurement is performed using 1.72 nb$^{-1}$ and 257pb$^{-1}$ of Pb+Pb and $pp$ data, respectively. The large-radius jets arereconstructed with the anti-$k_{t}$ algorithm using a radius parameter of $R =1.0$, by re-clustering anti-$k_{t}$ $R = 0.2$ jets, and are measured over thetransverse momentum ($p_{\mathrm{T}}$) kinematic range of $158 < p_{\mathrm{T}}< 1000$ GeV and absolute pseudorapidity $|y|<2.0$. The large-radius jetconstituents are further re-clustered using the $k_{t}$ algorithm in order toobtain the splitting parameters, $\sqrt{d_{12}}$ and $\Delta R_{12}$, whichcharacterize the transverse momentum scale and angular separation for thehardest splitting in the jet, respectively. The nuclear modification factor,$R_{\mathrm{AA}}$, obtained by comparing the Pb+Pb jet yields to those in $pp$collisions, is measured as a function of jet transverse momentum($p_{\mathrm{T}}$) and $\sqrt{d_{12}}$ or $\Delta R_{12}$. A significantdifference in the quenching of large-radius jets having single sub-jet andthose with more complex substructure is observed. Systematic comparison of jetsuppression in terms of $R_{\mathrm{AA}}$ for different jet definitions is alsoprovided. Presented results support the hypothesis that jets with hard internalsplittings lose more energy through quenching and provide a new perspective forunderstanding the role of jet structure in jet suppression.

physical review letters

Measurement of suppression of large-radius jets and its dependence on  substructure in Pb+Pb collisions at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV with  the ATLAS detector