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Hard probes in heavy ion collisions at the LHC: heavy flavour physics
High Energy Physics - Phenomenology · Submitted 4 Nov 2003
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim This report gives benchmark heavy quark and quarkonium cross sections for $pp$ and $pA$ collisions at the LHC against which the $AA$ rates can be compared in the study of the quark-gluon plasma.
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The abstract, sentence by sentence
We present the results from the heavy quarks and quarkonia working group. This report gives benchmark heavy quark and quarkonium cross sections for $pp$ and $pA$ collisions at the LHC against which the $AA$ rates can be compared in the study of the quark-gluon plasma. We also provide an assessment of the theoretical uncertainties in these benchmarks. We then discuss some of the cold matter effects on quarkonia production, including nuclear absorption, scattering by produced hadrons, and energy loss in the medium. Hot matter effects that could reduce the observed quarkonium rates such as color screening and thermal activation are then discussed. Possible quarkonium enhancement through coalescence of uncorrelated heavy quarks and antiquarks is also described. Finally, we discuss the capabilities of the LHC detectors to measure heavy quarks and quarkonia as well as the Monte Carlo generators used in the data analysis.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We present the results from the heavy quarks and quarkonia working group. | contribution 0.98 | 0.64 | 0.03 | asserted 0.83 |
| s1 | This report gives benchmark heavy quark and quarkonium cross sections for $pp$ and $pA$ collisions at the LHC against which the $AA$ rates can be compared in the study of the quark-gluon plasma. | contribution 0.97 | 0.80 | 0.18 | asserted 0.99 |
| s2 | We also provide an assessment of the theoretical uncertainties in these benchmarks. | contribution 0.94 | 0.87 | 0.04 | asserted 0.95 |
| s3 | We then discuss some of the cold matter effects on quarkonia production, including nuclear absorption, scattering by produced hadrons, and energy loss in the medium. | contribution 0.67 | 0.22 | 0.03 | asserted 0.84 |
| s4 | Hot matter effects that could reduce the observed quarkonium rates such as color screening and thermal activation are then discussed. | contribution 0.59 | 0.14 | 0.03 | hedged possibility 1.00 |
| s5 | Possible quarkonium enhancement through coalescence of uncorrelated heavy quarks and antiquarks is also described. | contribution 0.53 | 0.20 | 0.03 | hedged possibility 0.98 |
| s6 | Finally, we discuss the capabilities of the LHC detectors to measure heavy quarks and quarkonia as well as the Monte Carlo generators used in the data analysis. | method 0.92 | 0.40 | 0.03 | asserted 0.87 |
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The paper
Original abstract
We present the results from the heavy quarks and quarkonia working group. This report gives benchmark heavy quark and quarkonium cross sections for $pp$ and $pA$ collisions at the LHC against which the $AA$ rates can be compared in the study of the quark-gluon plasma. We also provide an assessment of the theoretical uncertainties in these benchmarks. We then discuss some of the cold matter effects on quarkonia production, including nuclear absorption, scattering by produced hadrons, and energy loss in the medium. Hot matter effects that could reduce the observed quarkonium rates such as color screening and thermal activation are then discussed. Possible quarkonium enhancement through coalescence of uncorrelated heavy quarks and antiquarks is also described. Finally, we discuss the capabilities of the LHC detectors to measure heavy quarks and quarkonia as well as the Monte Carlo generators used in the data analysis.
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References
How the literature uses it
33 arXiv papers cite this in 61 sentences
Papers citing it · 36 sentences without a confident label
Uses its method or tool 1 paper
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Our calculations use the NLO $Q Q$ code of Mangano et al. [ref] with the $2m_H$ mass cut in Eq. ([ref]) and use the same parameters as in Refs. [ref] with the MRST parton densities [ref] , optimized to obtain agreement with the $Q Q$ cross section, as described in Ref. [ref] .
Cold Nuclear Matter Effects on J/psi and Upsilon Production at the LHC · Baseline Total Cross Sections · 1.00
Uses its data or values 3 papers
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The total yield of lepton pairs from quarkonia decays in collisions at $√(s)=8.8$ TeV and nominal integrated luminosity is $3.9 ×10^7$ inclusive $J/ψ$ and $2.5 ×10^5$ inclusive $Υ$ [ref] .
Proton-Nucleus Collisions at the LHC: Scientific Opportunities and Requirements · Quarkonium · 0.94
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The number of directly produced $J/ψ$ in central (5%) Pb-Pb collisions at $5.5 TeV$ is 0.5 [ref] [Including shadowing and feed-down from higher states.].
Charmonium and bottomonium production in heavy-ion collisions · Quarkonia in heavy ion collisions at the LHC · 0.99
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The $c c$ and $b b$ cross sections increase by factors of 15 and 100 respectively [ref] while the $J/ψ$ and $Υ$ cross sections increase by factors of 13 and 55 respectively [ref] .
Heavy flavor in heavy-ion collisions at RHIC and RHIC II · Overview of the relationship of RHIC II to the LHC program · 0.93
Compares with it 6 papers
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At larger energies, these results at 7 TeV (100 to 800 nb) and at 14 TeV (200 to 1400 nb) are in the same range as those of the Colour Evaporation Model [ref] with central (upper) values of 140 nb (400 nb) at 7 TeV and 200 nb (550 nb) at 14 TeV.
Total J/Psi and Upsilon production cross section at the LHC: theory vs. experiment · Total $J/ψ$ and $Υ$ cross section at the LHC[Note that we have not depicted the systematic uncertainties attached the un · 0.96
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At larger energies, these results at 7 TeV (100 to 800 nb) and at 14 TeV (200 to 1400 nb) are in the same range as those of the Colour Evaporation Model [ref] with central (upper) values of 140 nb (400 nb) at 7 TeV and 200 nb (550 nb) at 14 TeV.
Total J/psi production cross section at the LHC · Total $J/ψ$ cross section at the LHC · 0.99
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Reasonable agreement between this result and the Fixed-Order Next-To-Leading Logarithm and Color-Evaporation-Model (FONLL+CEM) [ref] calculations has been achieved.
Energy dependent forward B $\rightarrow$ $J/\psi$ measurements in p+p collisions at PHENIX · The fraction of $J/ψ$ from $B$ meson decay in $√(s)$ = 510 and 200 GeV $p$+$p$ collisions · 1.00
Cites it as background 10 papers
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In an event generator like PYTHIA or HERWIG, heavy flavor production is divided into three different categories: flavor or pair creation, flavor excitation, and gluon splitting [ref] .
Heavy Flavor Azimuthal Correlations in Cold Nuclear Matter · Heavy flavor production in leading order event generators compared to NLO calculations · 0.92
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In this review of predictions for the heavy-ion programme at the LHC[Similar efforts done for RHIC can found in [ref] .] I will classify them into different groups according to the following scheme: Those observables which characterize the produced medium itself, which I will call bulk observables (or soft probes, as they refer to particles with momentum scales of the order of the typical momentum scale of the medium - the temperature if thermalization were achieved); and those whose expectation in the absence of any medium can be calculated by perturbative methods in QCD (pQCD) (thus characterized by a momentum scale much larger than both $Λ_QCD$ and the 'temperature' of the medium), commonly referred to as hard probes [ref] .
Predictions for the heavy-ion programme at the Large Hadron Collider · Introduction · 0.80
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Heavy-quarkonium production mechanism has always been – and still is – a subject of debate (for reviews see [ref] ).
Perspectives on heavy-quarkonium production at the LHC · Introduction · 0.99
Discussion
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