Shedding Light on Hadronization by Quarkonium Energy Correlator

Autor:	Chen, An-Ping, Liu, Xiaohui, Ma, Yan-Qing
Rok vydání:	2024
Předmět:	High Energy Physics - Phenomenology High Energy Physics - Experiment
Druh dokumentu:	Working Paper
Popis:	We propose to measure the energy correlator in quarkonium production, which tracks the energy deposited in the calorimeter $\chi$-angular distance away from the identified quarkonium. The observable eliminates the need for jets while sustaining the perturbative predictive power. Analyzing the power correction to the energy correlator, we demonstrate the novel observable supplies a unique gateway to probing the hadronization, especially when $\cos\chi\gtrsim 0$ in the quarkonium rest frame where the perturbative emissions are depleted due to the dead-cone effects. We expect the quarkonium energy correlator to add a new dimension to quarkonium studies. Comment: 7 pages, 4 figures + supplemental materials (3 pages)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2405.10056 Zobrazit plný text záznamu View this record from Arxiv