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14-18 May 2018
Jefferson Lab - CEBAF Center
US/Eastern timezone

Light-front methods in next-generation nuclear DIS at EIC

17 May 2018, 17:50
20m
F113 (Jefferson Lab - CEBAF Center)

F113

Jefferson Lab - CEBAF Center

Speaker

Christian Weiss (Jefferson Lab)

Description

Measurements of deep-inelastic scattering (DIS) on polarized light ions (deuteron, 3He, ...) address important physics topics such as the spin structure of the neutron, nuclear modifications of parton densities, and coherent effects at small x. Detection of the nuclear breakup state ("spectator tagging") reveals the nuclear configurations present during the high-energy process and permits a controled theoretical treatment of nuclear effects. Such measurements could be performed at a future Electron-Ion Collider (EIC) with suitable forward detectors. We report about recent progress in developing the theoretical framework for DIS on the polarized deuteron with spectator tagging at EIC. This includes (a) calculation of the final-state interactions in tagged DIS on the deuteron at large x using methods of light-front quantization [1]; (b) extraction of free neutron spin structure from tagged DIS using on-shell extrapolation; (c) novel studies of nuclear shadowing in diffractive tagged DIS at small x. We present suggestions for future theoretical studies and experimental simulations for the EIC.

Primary author

Christian Weiss (Jefferson Lab)

Presentation Materials