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Heavy-to-light ratios as a test of medium-induced energy loss at RHIC and the LHC

2005/10/21 by N. Armesto, Matteo Cacciari, M. Cacciari +4
Physics and Astronomy · #Charm (quantum number) #Electron #Hadron #High-Energy Particle Collisions Research #Large Hadron Collider #Meson #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Radiant energy #Radiation #Radiative transfer #hep-ph #nucl-ex #nucl-th

paper · pdf · doi:10.1016/j.nuclphysa.2006.06.020

published as Nucl.Phys. A774 (2006) 589-592 · 5 pages, latex, 4 eps figs included using graphicx; to appear in the proceedings of 18th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions: Quark Matter 2005 (QM 2005), Budapest, Hungary, 4-9 Aug 2005

arxiv created 2005/10/21 · openalex publication_date 2006/08/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The ratio of nuclear modification factors of high-pT heavy-flavored mesons tolight-flavored hadrons (heavy-to-light ratio) is shown to be a sensitive tool to test medium-induced energy loss at RHIC and LHC energies. Heavy-to-light ratios of D mesons at RHIC in the region 7<pT<12 GeV, and of D and B mesons at the LHC in the region 10<pT<20 GeV, are proposed for such a test. Finally, the different contributions to the nuclear modification factor for electrons at RHIC are analyzed. Preliminary PHENIX and STAR data are compatible with radiative energy loss provided the contribution of electrons from beauty decays is small compared to that from charm.

Citations