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arXiv · 1710.07607

Novel subjet observables for jet quenching in heavy-ion collisions

Liliana Apolinário·José Guilherme Milhano·Mateusz Ploskon·Xiaoming Zhang
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Abstract

Using a novel observable that relies on the momentum difference of the two most energetic subjets within a jet $ΔS_{12}$ we study the internal structure of high-energy jets simulated by several Monte Carlo event generators that implement the partonic energy-loss in a dense partonic medium. Based on inclusive jet and di-jet production we demonstrate that $ΔS_{12}$ is an effective tool to discriminate between different models of jet modifications over a broad kinematic range. The new quantity, while preserving the colinear and infrared safety of modern jet algorithms, it is experimentally attractive because of its inherent resiliance against backgrounds of heavy-ion collisions.

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Liliana Apolinário, José Guilherme Milhano, Mateusz Ploskon, Xiaoming Zhang. 2018-06-19. Novel subjet observables for jet quenching in heavy-ion collisions. https://doi.org/10.1140/epjc%2Fs10052-018-5999-2

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