Sensitivity study with a 
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 mesons modular simulation code of heavy flavor 
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 and azimuthal anisotropies based on beam energy, initial conditions, hadronization, and su

Katz, Roland; Prado, C. Alves Garcia; Noronha-Hostler, Jacquelyn; Noronha, Jorge; Suaide, Alexandre Alarcon Do Passo

doi:10.1103/physrevc.102.024906

Cited by 37 publications

(33 citation statements)

References 127 publications

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“…The theoretical uncertainties, when available, are displayed with a coloured band or a double line. Among the transport models, the mc@shq+epos2 [190], phsd [178], lbt [198], lido [114], bamps el+rad [173], and dab-mod(m&t) [199] calculations include charm-quark interactions with the medium constituents via both collisional (elastic) and radiative (gluon radiation) processes. In the tamu [170,200] powlang [201], and bamps el [173] models only the collisional processes are implemented.…”

Section: Comparison Of D-meson V 2 and R Aa To Theoretical Modelsmentioning

confidence: 99%

“…All the considered pQCD-based energy-loss models (i.e. djordjevic [180], cu-jet3.0 [202], scet MG [203], and dab-mod(E loss ) [199] models) include radiative energyloss processes, while only djordjevic, cujet3.0, and dab-mod(E loss ) [199] calculations include also collisional processes. A positive v 2 in these calculations arises from the pathlength dependent energy loss.…”

Section: Comparison Of D-meson V 2 and R Aa To Theoretical Modelsmentioning

confidence: 99%

“…The measurements in the q TPC 2 -classes were used, to reduce as much as possible the detector effects, which are not included in the model predictions. In particular, the lido [114] and dab-mod [199] models classify the events according to the q 2 computed with generated particles, while in the powlang [188] model the eccentricity is used. Also in this case, the measurements of prompt D 0 , D + , and D * + mesons were averaged to improve the statistical precision.…”

Section: Comparison To Model Predictionsmentioning

confidence: 99%

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Strange and Non-Strange D-meson Production in pp, p-Pb, and Pb-Pb Collisions with ALICE at the LHC

Grosa

2021

Springer Theses

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The perspectives of improved measurements with the application of machine-learning techniques for the selection of the D-meson signal and with the upgrade of the ALICE Inner Tracking System (ITS), planned for the LHC Run3 in 2020, are discussed.The results presented in this Thesis were approved by the ALICE Collaboration and presented in various conferences. The measurement of the D + s -meson production in pp collisions was published in Ref. [1], the measurement of the D + -meson nuclear modification factors in p-Pb and Pb-Pb collisions in Refs. [2, 3], and the measurement of the D + -meson azimuthal anisotropies in Refs. [4,5]. The perspectives for the ESE measurements with the upgraded ITS were included in Ref. [6]. The measurement of the D + s -meson R AA and the improved measurements of the D + -meson azimuthal anisotropies were approved as preliminary results and will be published soon.

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Section: Comparison Of D-meson V 2 and R Aa To Theoretical Modelsmentioning

confidence: 99%

Section: Comparison Of D-meson V 2 and R Aa To Theoretical Modelsmentioning

confidence: 99%

Section: Comparison To Model Predictionsmentioning

confidence: 99%

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Strange and Non-Strange D-meson Production in pp, p-Pb, and Pb-Pb Collisions with ALICE at the LHC

Grosa

2021

Springer Theses

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“…Various formalisms, such as AMY [10], ASW [11], BDMPS-Z [12,13], DGLV [14,15], higher-twist [16,17], and SCET [18,19], have been developed for the phenomenology of light-flavor jet quenching in URHICs. Among them, some have been extended to massive quarks [11,[20][21][22][23][24] and implemented into numerical simulations for their transport in URHICs [8,[25][26][27][28][29][30], see also refs. [31] and [32,33] for recent comparisons between different energy loss formalisms for light-flavor jets and heavy quarks, respectively.…”

Section: Introductionmentioning

confidence: 99%

Nonperturbative effects on radiative energy loss of heavy quarks

Liu

Rapp

2020

J. High Energ. Phys.

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The radiative energy loss of fast partons traveling through the quark-gluon plasma (QGP) is commonly studied within perturbative QCD (pQCD). Nonperturbative (NP) effects, which are expected to become important near the critical temperature, have been much less investigated. Here, we utilize a recently developed T-matrix approach to incorporate NP effects for gluon emission off heavy quarks propagating through the QGP. We set up four cases that contain, starting from a Born diagram calculation with color-Coulomb interaction, an increasing level of NP components, by subsequently including (remnants of) confining interactions, resummation in the heavy-light scattering amplitude, and off-shell spectral functions for both heavy and light partons. For each case we compute the power spectra of the emitted gluons, heavy-quark transport coefficients (drag and transverse-momentum broadening,q), and the path-length dependent energy loss within a "QGP brick" at fixed temperature. Investigating the differences in these quantities between the four cases illustrates how NP mechanisms affect gluon radiation processes. While the baseline perturbative processes experience a strong suppression of soft radiation due to thermal masses of the emitted gluons, confining interactions, ladder resummations and broad spectral functions (re-)generate a large enhancement toward low momenta and low temperatures. For example, for a 10 GeV charm quark at 200 MeV temperature, they enhance the transport coefficients by up to a factor of 10, while the results smoothly converge to perturbative results at sufficiently hard scales.

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“…Another observable extensively studied is the elliptic flow [33,34], v 2 ( p T ) = cos(2φ) , a measure of the anisotropy in the angular distribution of heavy mesons in momentum space, as a response to the initial anisotropy in coordinate space in non-central collisions. In literature several studies have been performed in these years, to study theoretically both these observables with the aim to understand heavy quark dynamics in QGP employing the Langevin or the on-shell Boltzmann transport equation [9,12,13,22,25,29,[35][36][37][38][39][40][41][42][43][44]. However, being the QGP strongly interacting, a full quantum description of the charm quark interaction should include in principle also the off-shell dynamics, an approach that has been developed only in [45] for the study of the transport coefficients and it is included in the PHSD approach to heavy-ion collisions [27,38,46].…”

Section: Introductionmentioning

confidence: 99%

Impact of off-shell dynamics on the transport properties and the dynamical evolution of charm quarks at RHIC and LHC temperatures

2020

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We evaluate drag and diffusion transport coefficients comparing a quasi-particle approximation with on-shell constituents of the QGP medium and a dynamical quasi-particles model with off-shell bulk medium at finite temperature T. We study the effects of the width $$\gamma $$ γ of the particles of the bulk medium on the charm quark transport properties exploring the range where $$\gamma < M_{q,g}$$ γ < M q , g . We find that off-shell effects are in general quite moderate and can induce a reduction of the drag coefficient at low momenta that disappear already at moderate momenta, $$p \gtrsim $$ p ≳ 2–3 GeV. We also observe a moderate reduction of the breaking of the fluctuation–dissipation theorem (FDT) at finite momenta. Moreover, we have performed a first study of the dynamical evolution of HQ elastic energy loss in a bulk medium at fixed temperature extending the Boltzmann (BM) collision integral to include off-shell dynamics. A comparison among the Langevin dynamics, the BM collisional integral with on-shell and the BM extension to off-shell dynamics shows that the evolution of charm energy when off-shell effects are included remain quite similar to the case of the on-shell BM collision integral.

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Sensitivity study with a D and B mesons modular simulation code of heavy flavor RAA and azimuthal anisotropies based on beam energy, initial conditions, hadronization, and su

Cited by 37 publications

References 127 publications

Strange and Non-Strange D-meson Production in pp, p-Pb, and Pb-Pb Collisions with ALICE at the LHC

Strange and Non-Strange D-meson Production in pp, p-Pb, and Pb-Pb Collisions with ALICE at the LHC

Nonperturbative effects on radiative energy loss of heavy quarks

Impact of off-shell dynamics on the transport properties and the dynamical evolution of charm quarks at RHIC and LHC temperatures

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