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The JETSCAPE framework: p+p results

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arxiv 1910.05481 v2 pith:BNYH3QGO submitted 2019-10-12 nucl-th hep-exnucl-ex

A. Kumar , Y. Tachibana , D. Pablos , C. Sirimanna , R. J. Fries , A. Angerami , S. A. Bass , S. Cao
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Y. Chen J. Coleman L. Cunqueiro T. Dai L. Du H. Elfner D. Everett W. Fan C. Gale Y. He U. Heinz B. V. Jacak P. M. Jacobs 15 S. Jeon K. Kauder W. Ke E. Khalaj M. Kordell II T. Luo A. Majumder M. McNelis J. Mulligan C. Nattrass D. Oliinychenko L.-G. Pang C. Park J.-F. Paquet J. H. Putschke G. Roland B. Schenke L. Schwiebert C. Shen R. A. Soltz G. Vujanovic X.-N. Wang R. L. Wolpert Y. Xu Z. Yang (The JETSCAPE Collaboration)
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classification nucl-thhep-exnucl-ex
keywords jetscapecollisionsframeworkcrossobservablespp19resultssections
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

The JETSCAPE framework is a modular and versatile Monte Carlo software package for the simulation of high energy nuclear collisions. In this work we present a new tune of JETSCAPE, called PP19, and validate it by comparison to jet-based measurements in $p+p$ collisions, including inclusive single jet cross sections, jet shape observables, fragmentation functions, charged hadron cross sections, and dijet mass cross sections. These observables in $p+p$ collisions provide the baseline for their counterparts in nuclear collisions. Quantifying the level of agreement of JETSCAPE results with $p+p$ data is thus necessary for meaningful applications of JETSCAPE to A+A collisions. The calculations use the JETSCAPE PP19 tune, defined in this paper, based on version 1.0 of the JETSCAPE framework. For the observables discussed in this work calculations using JETSCAPE PP19 agree with data over a wide range of collision energies at a level comparable to standard Monte Carlo codes. These results demonstrate the physics capabilities of the JETSCAPE framework and provide benchmarks for JETSCAPE users.

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Cited by 4 Pith papers

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    An improved LBT model with an earlier medium-scale insertion and color-flow tracking reproduces hadron and jet nuclear modification factors together in 5.02 TeV Pb+Pb collisions.

  3. Geometric Bias and Centrality Dependence of Jet Quenching in High-Energy Nuclear Collisions

    nucl-th 2026-04 unverdicted novelty 5.0 of 10

    Suppression of high-pT hadrons in peripheral Pb+Pb collisions is predominantly driven by initial-state geometric bias rather than final-state jet quenching.

  4. Interplay of prompt and non-prompt photons in photon-triggered jet observables

    hep-ph 2025-07 conditional novelty 4.0 of 10

    Including isolated non-prompt (bremsstrahlung) photons in JETSCAPE simulations improves agreement with measured photon-jet asymmetry and azimuthal correlations in pp and Pb-Pb collisions at 5.02 TeV.

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