Abstract
The proposed high-energy and high-luminosity Electron–Ion Collider (EIC) will provide one of the cleanest environments to precisely determine the nuclear parton distribution functions (nPDFs) in a wide x–Q2 range. Heavy flavor production at the EIC provides access to nPDFs in the poorly constrained high Bjorken-x region, allows us to study the quark and gluon fragmentation processes, and constrains parton energy loss in cold nuclear matter. Scientists at the Los Alamos National Laboratory are developing a new physics program to study heavy flavor production, flavor tagged jets, and heavy flavor hadron-jet correlations in the nucleon/nucleus going direction at the future EIC. The proposed measurements will provide a unique way to explore the flavor dependent fragmentation functions and energy loss in a heavy nucleus. They will constrain the initial-state effects that are critical for the interpretation of previous and ongoing heavy ion measurements at the Relativistic Heavy Ion Collider and the Large Hadron Collider. We show an initial conceptual design of the proposed Forward Silicon Tracking (FST) detector at the EIC, which is essential to carry out the heavy flavor measurements. We further present initial feasibility studies/simulations of heavy flavor hadron reconstruction using the proposed FST.
Highlights
Heavy flavor production is an ideal probe to study the full evolution of the nuclear medium created in heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC)
The cross sections of finalstate hadrons and jets to be measured in electron+proton and electron+nuclei collisions at the future Electron Ion Collider (EIC) are proportional to the initial quark/gluon PDFs, the quark/gluon hard scattering part which can be calculated in perturbative quantum chromodynamics (QCD), and the quark/gluon fragmentation and hadronization processes
A new heavy flavor and jet program has started at Los Alamos National Laboratory (LANL) to develop new observables and initialize a conceptual detector design for a proposed Forward Silicon Tracking detector for the future EIC
Summary
Heavy flavor production is an ideal probe to study the full evolution of the nuclear medium created in heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC). The deep inelastic scattering (DIS) processes of electrons on light/heavy nuclei at the future EIC will provide a clean. These studies will improve our understanding of the current and future RHIC and LHC measurements and shed light on the non-perturbative aspects of quantum chromodynamics (QCD)
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