Testing the color charge and mass dependence of parton energy loss with heavy-to-light ratios at BNL RHIC and CERN LHC

By N. Armesto, A. Dainese, C. Salgado, U. Wiedemann. 2005

213 citations recorded by the source corpus.

� 20 GeV) in Pb–Pb collisions at the LHC, we find that charm quarks behave essentially like light quarks. However, since light-flavored hadron yields are dominated by gluon parents, the heavy-to-light ratio of D mesons is a sensitive probe of the color charge dependence of parton energy loss. In contrast, due to the larger b quark mass, the medium modification of B mesons in the same kinematical regime provides a sensitive test of the mass dependence of parton energy loss. At RHIC energies, the strategies for identifying and disentangling the color charge and mass dependence of parton energy loss are more involved because of the smaller kinematical range accessible. We argue that at RHIC, the kinematical regime best suited for such an analysis of D mesons is 7 < � pT < 12 GeV, whereas the study of lower transverse momenta is further complicated due to the known dominant contribution of additional, particle species dependent, non-perturbative effects.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/5201c0e42e7319371a70da3084cf17222bd6e6f5

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Citations in the corpus

• Study of high-pT charged particle suppression in PbPb compared to pp collisions at $\sqrt{s_{\mathrm{NN}}}=2.76~\mathrm{TeV}$ (2012, unknown): “76 TeV (ASW [35, 36] and YaJEM [37] including a model for elastic energy loss parameterized with the Pesc variable).”
• Suppression of high transverse momentum D mesons in central Pb-Pb collisions at root s(NN)=2.76 TeV (2012, methodology): “The RAA of non-prompt J/ψ, measured by CMS [33], falls in this range as well as the available model predictions for B meson energy loss [13, 20].”