Session C14: Mini-Symposium: Science Opportunities Enabled by the Electron-Ion Collider

Live

With the recent approval of CD-0 for the Electron-Ion Collider and its siting at Brookhaven National Lab, the EIC program enjoys strong forward momentum. As a community, we are now tasked with understanding the phenomenological implications of the future EIC program, which will extend to many corners of particle and nuclear physics, and planning accordingly to enhance the scientific impact. In this talk, I concentrate on the role the EIC will play in growing the sensitivity of collider-based searches for beyond Standard Model (BSM) physics, as well as other activities at the Energy and Intensity Frontiers. I will highlight recent progress toward the realization of a working community dedicated to maximizing the EIC benefits to efforts at colliders and {\it vice versa}.   

Live

The charged pion form factor, $F_{\pi}(Q^2)$, is an important quantity which can be used to advance our knowledge of hadronic structure. Planned measurements from Jefferson Lab are expected to provide precise data over $0.38 [Preview Abstract]

Live

We assess the impact of the future electron-ion collider in determination of the strange quark polarized parton distribution function, which is one of the missing pieces of the proton spin puzzle. We use a reweighting technique for the sets of the simulated data for 100 NNPDF polarized replicas with realistic uncertainties scaled to integrated luminosities of the EIC and for two different center-of-mass energies. We obtain the reduced uncertainty band of the strange quark polarized parton distribution functions from NNPDF. We analyze different theoretical models of the polarized parton distribution functions that can potentially be distinguished between at a future EIC using the reduced uncertainty band.   

Live

The proposed high luminosity high energy Electron Ion Collider (EIC) will explore the proton/nuclear structure, search for gluon saturation and precisely determine the nuclear parton distribution functions (nPDFs) in a wide x-$Q^{2}$ phase space. Heavy flavor and jet measurements at the future EIC will allow us to better constrain the nPDFs within the poorly constrained high Bjorken-x region, precisely determine the quark/gluon fragmentation processes and directly study the quark/gluon energy loss within the nuclear medium. We propose to develop a new physics program to study the flavor tagged hadrons/jets, heavy flavor hadron-jet correlations and flavor dependent jet fragmentation processes in the nucleon/nucleus going direction (forward region) at the EIC. These proposed measurements will provide a unique path to explore the flavor dependent fragmentation functions and energy loss in heavy nuclei, which can constrain the initial state effects for previous and ongoing heavy ion measurements at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC). Details of the proposed new physics program, progresses of the detector and physics simulation studies and the status of the detector R$\&$D will be discussed in this presentation.   

Live

The EIC will be the first e-A collider and will produce the first jets in nuclear DIS. Jets will enable new type of studies of nuclei that extend beyond traditional single-hadron measurements. In this talk, I discuss the prospects of using jets as precision probes in e-A collisions at the Electron-Ion Collider (EIC). Jets produced in deep-inelastic scattering can be calibrated by a measurement of the scattered electron. Such electron-jet "tag and probe" measurements call for an approach that is orthogonal to most HERA jet measurements as well as previous studies of jets at the EIC. I will discuss the feasibility of several measurements such as the electron-jet momentum balance, azimuthal correlations and jet substructure, which can provide constrain the parton transport coefficient in nuclei. We compare simulations and analytical calculations and provide estimates of the expected nuclear effects. This talk is based on: https://arxiv.org/abs/1912.05931.   

Not Participating

The future US-based Electron-Ion Collider (EIC) will be a world-wide unique facility to study, at a fundamental level, the nature of the building blocks of visible matter in the universe. In particular, the EIC will address forefront questions about strongly interacting matter, including the emergence of nucleon mass and spin from the dynamics of quarks and gluons, the combined spatial and momentum distributions of quarks and gluons inside nucleons and nuclei, and the characteristics of nuclear systems with high gluon density. This talk will give a broad overview of the EIC science case.   

Not Participating

Pions and kaons are, along with protons and neutrons, the main building blocks of nuclear matter. They are connected to the Goldstone modes of dynamical chiral symmetry breaking, the mechanism thought to generate all hadron mass in the visible universe. The distribution of the fundamental constituents, the quarks and gluons, is expected to be different in pions, kaons, and nucleons. However, experimental data are sparse. As a result, there has been persistent doubt about the behavior of the pion's valence quark structure function at large Bjorken-x and virtually nothing is known about the contribution of gluons. A 12 GeV JLab experiment using tagged DIS may contribute to the resolution of the former. The Electron-Ion Collider with an acceptance optimized for forward physics could provide access to structure functions over a larger kinematic region. This would allow for measurements testing if the origin of mass is encoded in the differences of gluons in pions, kaons, and nucleons, and measurements that could serve as a test of assumptions used in the extraction of structure functions and the pion and kaon form factors. Measurements at an EIC would also allow to explore the effect of gluons at high x. In this talk we will discuss the prospects of such measurements.