arXiv : Energy-Energy Correlator for jet production in $pp$ and $pA$ collisions

Barata, João; Kang, Zhong-Bo; Penttala, Jani; Mayo López, Xoán

If you experience any problem watching the video, click the download button below

Preprint
Report number	CERN-TH-2024-201 ; arXiv:2411.11782
Title	Energy-Energy Correlator for jet production in $pp$ and $pA$ collisions
Author(s)	Barata, João (CERN) ; Kang, Zhong-Bo (UCLA ; SUNY, Stony Brook) ; Mayo López, Xoán (Santiago de Compostela U., IGFAE) ; Penttala, Jani (UCLA)
Imprint	2024-11-18
Number of pages	7
Note	7 pages, 2 figures, 2 pages of supplementary material
Subject category	nucl-th ; Nuclear Physics - Theory ; nucl-ex ; Nuclear Physics - Experiment ; hep-ex ; Particle Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology
Abstract	In this Letter, we study the collinear limit of the Energy-Energy Correlator (EEC) in single-inclusive jet production in proton-proton ( $pp$ ) and proton-nucleus ( $pA$ ) collisions. We introduce a non-perturbative model that allows us to describe the EEC in the entire angular region of the current experiments. Our results for $pp$ collisions show excellent agreement with CMS and ALICE data over a wide range of jet transverse momenta. For $pA$ collisions, we include modifications from the nuclear medium, and our predictions align well with the trends observed in recent ALICE measurements.
Other source	Inspire
Copyright/License	preprint: (License: arXiv nonexclusive-distrib 1.0)

$Differential EEC distribution in $pp$ collisions as a function of the angle $R_L$ compared to the experimental data from CMS~\cite{CMS:2024mlf} and ALICE~\cite{ALICE:2024dfl}. The theory prediction at the average $p_T$ of the bin is shown with solid lines, while the shaded band corresponds to the prediction with the minimum and maximum $p_T$ in each bin.$ $Ratio of the differential EEC $p \rm Pb$ distribution with respect to $pp$ collisions, as a function of $R_L$, compared to the experimental fit provided by ALICE~\cite{ALICEpA} (dashed black line): $R^{\rm ALICE}_{p \rm Pb} = 0.87 + 0.121(\log_{10}(R_L) + 1.831)^2$. The theory prediction, at the average $p_T$ of the bin, is shown by the blue solid line. The ratio with $F_{\rm med}= 0$ (solid red line), and the sole effect of introducing the nPDF in the vacuum distribution (solid green line) are also shown. The blue shaded band corresponds to the prediction using the minimum and maximum $p_T$ of the bin, while the orange band corresponds to modifying the length of the medium $L\in (2,4)~$fm.$

Naspäť k hľadaniu

Záznam vytvorený 2025-01-24, zmenený 2025-02-27

Podobné záznamy

Plný text:

PDF

Pridaj do osobného košíka
Exportuj ako BibTeX, MARC, MARCXML, DC, EndNote, NLM, RefWorks

CERN Document Server

Access articles, reports and multimedia content in HEP

Main menu

CERN Accelerating science