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Medium Modification of Jet Shapes and Jet Multiplicities
High Energy Physics - Phenomenology · Submitted 7 Oct 2003
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We find that the kt-broadening of jet multiplicity distributions provides a very sensitive probe of the properties of dense QCD matter, whereas the sensitivity of jet energy distributions is much weaker.
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The abstract, sentence by sentence
Medium-induced parton energy loss is widely considered to underly the suppression of high-pt leading hadron spectra in 200 GeV/A Au+Au collisions at RHIC. Its description implies a characteristic kt-broadening of the subleading hadronic fragments associated to the hard parton. However, this latter effect is more difficult to measure and remained elusive so far. Here, we discuss how it affects genuine jet observables which are accessible at LHC and possibly at RHIC. We find that the kt-broadening of jet multiplicity distributions provides a very sensitive probe of the properties of dense QCD matter, whereas the sensitivity of jet energy distributions is much weaker. In particular, the sensitive kinematic range of jet multiplicity distributions is almost unaffected by the high multiplicity background.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Medium-induced parton energy loss is widely considered to underly the suppression of high-pt leading hadron spectra in 200 GeV/A Au+Au collisions at RHIC. | background 1.00 | 0.04 | 0.03 | hedged possibility 0.53 |
| s1 | Its description implies a characteristic kt-broadening of the subleading hadronic fragments associated to the hard parton. | background 0.91 | 0.08 | 0.04 | asserted 0.81 |
| s2 | However, this latter effect is more difficult to measure and remained elusive so far. | gap 0.98 | 0.05 | 0.02 | asserted 1.00 |
| s3 | Here, we discuss how it affects genuine jet observables which are accessible at LHC and possibly at RHIC. | contribution 0.98 | 0.27 | 0.05 | hedged possibility 0.77 |
| s4 | We find that the kt-broadening of jet multiplicity distributions provides a very sensitive probe of the properties of dense QCD matter, whereas the sensitivity of jet energy distributions is much weaker. | result 1.00 | 0.95 | 0.86 | asserted 1.00 |
| s5 | In particular, the sensitive kinematic range of jet multiplicity distributions is almost unaffected by the high multiplicity background. | result 0.97 | 0.83 | 0.20 | asserted 1.00 |
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The paper
Original abstract
Medium-induced parton energy loss is widely considered to underly the suppression of high-pt leading hadron spectra in 200 GeV/A Au+Au collisions at RHIC. Its description implies a characteristic kt-broadening of the subleading hadronic fragments associated to the hard parton. However, this latter effect is more difficult to measure and remained elusive so far. Here, we discuss how it affects genuine jet observables which are accessible at LHC and possibly at RHIC. We find that the kt-broadening of jet multiplicity distributions provides a very sensitive probe of the properties of dense QCD matter, whereas the sensitivity of jet energy distributions is much weaker. In particular, the sensitive kinematic range of jet multiplicity distributions is almost unaffected by the high multiplicity background.
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References
How the literature uses it
26 arXiv papers cite this in 32 sentences
Papers citing it · 19 sentences without a confident label
Compares with it 1 paper
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We note that the results of the MC simulation shown in Fig. [ref] reproduce very well the main results of Ref. [ref] .
A local Monte Carlo framework for coherent QCD parton energy loss · Numerical results on transverse momentum broadening · 1.00
Cites it as background 10 papers
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The most interesting situation — originally studied by Baier, Dokshitzer, Mueller, Peigné, and Schiff [ref] and independently by Zakharov [ref] , following pioneering work by Gyulassy and Wang [ref] (see also [ref] ) —, is when the medium is so dense that the gluon formation time is much larger than the mean free path of a parton propagating through the medium.
QCD in heavy ion collisions · Jet quenching · 0.80
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From a microscopic point of view, the dominant mechanism for jet quenching at weak coupling and high energy is radiative energy loss associated with medium–induced gluon radiation [ref] (see also the review papers [ref] for more references).
Interference effects in medium-induced gluon radiation · Introduction · 0.82
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Nevertheless, some exploratory studies of jet broadening have been performed in the framework of radiative energy loss [ref] .
Jet Quenching via Jet Collimation · Introduction · 0.96
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