Monte Carlo for Jet Showers in the Medium

Carlos A. Salgado; Leticia Cunqueiro; Nestor Armesto

RECORD

Monte Carlo for Jet Showers in the Medium

Nestor Armesto, Leticia Cunqueiro, Carlos A. Salgado

High Energy Physics - Phenomenology · Submitted 27 Jul 2009

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We present the publicly available routine Q-PYTHIA and discuss some of the obtained physics results.

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The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 5,943 input tokens, $0.0003 reported.

What the abstract itself states, as probabilities: claims first 0.08 · states limitation 0.31 · human participants 0.01 · controlled comparison 0.05 · randomized assignment 0.01 · states quantitative result 0.04 · compares with prior results 0.25 · mentions code or data availability 0.96.

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arXiv listing abstract v2. Results and the main claim are underlined; show every role.

The most commonly employed formalisms of radiative energy loss have been derived in the high- energy approximation. In its present form, it is reliable only for the medium modifications of inclusive particle spectra. Modifications to this formalism are expected to be important for less inclusive measurements. This is especially relevant for reconstructed jets in heavy-ion collisions, which are becoming available only recently. We present some ideas to overcome this limitation. Specifically, we show an implementation of radiative energy loss within a jet parton shower. This implementation has been done within the PYTHIA Monte Carlo event generator. We present the publicly available routine Q-PYTHIA and discuss some of the obtained physics results.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	The most commonly employed formalisms of radiative energy loss have been derived in the high- energy approximation.	background 1.00	0.05	0.03	asserted 1.00
s1	In its present form, it is reliable only for the medium modifications of inclusive particle spectra.	background 0.68	0.13	0.06	asserted 0.99
s2	Modifications to this formalism are expected to be important for less inclusive measurements.	gap 0.60	0.08	0.08	hedged possibility 0.95
s3	This is especially relevant for reconstructed jets in heavy-ion collisions, which are becoming available only recently.	background 0.77	0.07	0.04	asserted 0.96
s4	We present some ideas to overcome this limitation.	contribution 0.99	0.57	0.11	asserted 0.80
s5	Specifically, we show an implementation of radiative energy loss within a jet parton shower.	contribution 0.73	0.94	0.19	asserted 1.00
s6	This implementation has been done within the PYTHIA Monte Carlo event generator.	method 0.97	0.88	0.06	asserted 1.00
s7	We present the publicly available routine Q-PYTHIA and discuss some of the obtained physics results.	contribution 0.99	0.93	0.19	asserted 0.99

What kind of paper the classifier reports this is: method or tool 1.00 · evidence from simulation or computation 1.00.

What was examined, and what was not

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arXiv listing abstract v2

not examined

full text
figures and tables
references and citing sentences
relations to other papers

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P abstract

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S sections
T body sentences
C citations
R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

The most commonly employed formalisms of radiative energy loss have been derived in the high- energy approximation. In its present form, it is reliable only for the medium modifications of inclusive particle spectra. Modifications to this formalism are expected to be important for less inclusive measurements. This is especially relevant for reconstructed jets in heavy-ion collisions, which are becoming available only recently. We present some ideas to overcome this limitation. Specifically, we show an implementation of radiative energy loss within a jet parton shower. This implementation has been done within the PYTHIA Monte Carlo event generator. We present the publicly available routine Q-PYTHIA and discuss some of the obtained physics results.

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References

How the literature uses it

2 arXiv papers cite this in 3 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers whose main result relates to this one's

Found among the papers closest to this one by title and main claim. Pith's classifier compared each pair's main results and a second model family confirmed the relation; checked against two further families, shown conflicts agreed 118 times in 120 and shown same results 218 times in 239. The quoted sentence is the other paper's main claim.

States the same result 2 papers

We present here an implementation of the jet quenching phenomena based on a modification at the level of the splitting functions in parton showers in standard, general purpose, Monte Carlos as PYTHIA or HERWIG.

Q-PYTHIA - a Monte Carlo implementation for jet quenching · 0.90
This shows the adequacy of a Monte Carlo simulator for jet analyses.

Q-PYTHIA: a medium-modified implementation of final state radiation · 0.87

Papers citing it · 2 sentences without a confident label

Uses its method or tool 1 paper

Since little is known about the details of the space-time dynamics of this evolution, we will rely, as customary in Monte Carlo implementations of in-medium jet dynamics [ref] , on uncertainty principle arguments to determine the characteristic emission time of the different partons produced during hadronization.

Out of Medium Fragmentation from Long-Lived Jet Showers · Introduction · 0.86

What it cites · 9 sentences without a confident label

Uses the method or tool of 3 papers

There, the vacuum splitting functions are supplemented with the medium term — see [ref] for details.

Implementation of a medium-modified parton shower algorithm · Implementation and results · 0.86
where $dI^med/dωdk_T^2$ is given by the medium-induced gluon radiation used previously for RHIC phenomenology [ref] .

Jet Quenching and Radiative Energy Loss in Dense Nuclear Matter · The modified splitting probability · 0.82
The medium-modified splitting probabilities ([ref], [ref]) are implemented in a modification of the standard PYTHIA [ref] routine for final-state parton branching PYSHOW.

PYTHIA 6.4 Physics and Manual · Implementation and results · 0.98

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