Understanding mass hierarchy in collisional energy loss through heavy flavor data

Abstract

While experimental observations, such as the mass hierarchy effect, are attributed and analyzed within radiative models, their interpretation crucially depends on collisional energy loss contribution, which is often neglected in such analyses. To our knowledge, neither a (direct) simple relation between collisional energy loss and heavy quark mass is established, nor an observable that quantifies this effect. On the other hand, the upcoming high-luminosity measurements at RHIC and LHC will generate heavy flavor data with unprecedented precision, providing an opportunity to utilize high-pT heavy flavor data to analyze the interaction mechanisms in the quark-gluon plasma. To this end, we employ a recently developed DREENA framework based on our dynamical energy loss formalism to study the mass hierarchy in heavy flavor suppression. We present i) Analytical derivation of a direct relation between collisional suppression/energy loss and heavy quark mass. ii) A novel observable sensitive only to the collisional energy loss mechanism to be tested by future high-precision experiments. iii) Analytical and numerical extraction of the mass hierarchy in collisional energy losses through this observable.

arXiv comment15 pages, 4 figures

References in corpus (62)

• Radiative energy loss and $p_{\perp }$-broadening of high energy partons in nuclei
• New Forms of QCD Matter Discovered at RHIC
• Heavy quark colorimetry of QCD matter
• How Much do Heavy Quarks Thermalize in a Heavy Ion Collision?
• Reaction Operator Approach to Non-Abelian Energy Loss
• What RHIC Experiments and Theory tell us about Properties of Quark-Gluon Plasma ?
• Disappearance of back-to-back high $p_T$ hadron correlations in central Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Evidence from d+Au measurements for final-state suppression of high $p_T$ hadrons in Au+Au collisions at RHIC
• Multiple Parton Scattering in Nuclei: Parton Energy Loss
• Photon and Gluon Emission in Relativistic Plasmas
• Calculating Quenching Weights
• Elastic, Inelastic, and Path Length Fluctuations in Jet Tomography
• Heavy-Quark Probes of the Quark-Gluon Plasma at RHIC
• Heavy Quark Radiative Energy Loss in QCD Matter
• Quenching of hadron spectra in media
• Medium-Induced Gluon Radiation off Massive Quarks Fills the Dead Cone
• Heavy Quark Energy Loss in Nuclear Medium
• Heavy Ion Collisions: Achievements and Challenges
• Thermalization of Heavy Quarks in the Quark-Gluon Plasma
• Charged-particle nuclear modification factors in PbPb and pPb collisions at sqrt(s[NN]) = 5.02 TeV
• Energy Loss of Charm Quarks in the Quark-Gluon Plasma: Collisional vs Radiative
• Radiative and Collisional Jet Energy Loss in the Quark-Gluon Plasma at RHIC
• A light-cone wavefunction approach to open heavy flavor dynamics in QCD matter
• Transverse momentum spectra and nuclear modification factors of charged particles in pp, p-Pb and Pb-Pb collisions at the LHC
• Jet Tomography of Au+Au Reactions Including Multi-gluon Fluctuations
• Nuclear modification factor of D${}^0$ mesons in PbPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Influence of Bottom Quark Jet Quenching on Single Electron Tomography of Au+Au
• Collisional Energy Loss in a Finite Size QCD Matter
• Measurement of prompt and nonprompt charmonium suppression in PbPb collisions at 5.02 TeV
• Radiative energy loss in a finite dynamical QCD medium
• Heavy Quark Diffusion with Relativistic Langevin Dynamics in the Quark-Gluon Fluid
• Measurement of D${}^0$, D${}^{+}$, D${}^{\ast +}$ and D${}_{\mathrm{s}}^{+}$ production in Pb-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}=5.02$ TeV
• On the Energy Loss of High Energy Quarks in a Finite-Size Quark-Gluon Plasma
• Lattice calculation of gluon screening masses
• LHC jet suppression of light and heavy flavor observables
• Theoretical formalism of radiative jet energy loss in a finite size dynamical QCD medium
• Heavy quark transport in heavy ion collisions at RHIC and LHC within the UrQMD transport model
• Heavy flavor puzzle at LHC: a serendipitous interplay of jet suppression and fragmentation
• Transverse Spectra of Radiation Processes in Medium
• Nuclear modification of high transverse momentum particle production in p+A collisions at RHIC and LHC
• RHIC and LHC jet suppression in non-central collisions
• DREENA-B framework: first predictions of $R_{AA}$ and $v_2$ within dynamical energy loss formalism in evolving QCD medium
• Suppression of the high $p_T$ charged hadron $R_{AA}$ at the LHC
• Heavy flavor suppression predictions at 5.1 TeV Pb+Pb collisions at LHC
• Heavy quark energy loss and D-Mesons at RHIC and LHC energies
• Constraining the Physics of Jet Quenching
• Generalization of radiative jet energy loss to non-zero magnetic mass
• Electric and Magnetic Screening Masses at Finite Temperature from Generalized Polyakov-Line Correlations in Two-flavor Lattice QCD
• Soft gluon emission off a heavy quark revisited
• Radiative heavy quark energy loss in a dynamical QCD medium
• Perspectives for the study of charm in-medium quenching at the LHC with ALICE
• Heavy quarks at RHIC from parton transport theory
• Tomography of the Quark Gluon Plasma by Heavy Quarks
• Mass tomography at different momentum ranges in quark-gluon plasma
• How to test path-length dependence in energy loss mechanisms: analysis leading to a new observable
• Heavy flavor puzzle at RHIC: analysis of the underlying effects
• Calculating hard probe radiative energy loss beyond soft-gluon approximation: Examining the approximation validity
• Interplay between bulk medium evolution and (D)GLV energy loss
• Jet suppression of pions and single electrons at Au+Au collisions at RHIC
• Gluon radiation by heavy quarks at intermediate energies and consequences for the mass hierarchy of energy loss
• Complex suppression patterns distinguish between major energy loss effects in Quark-Gluon Plasma
• Collisional parton energy loss in a finite size QCD medium revisited: Off mass-shell effects