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Apr 12 – 14, 2023
Minneapolis, Minnesota
US/Central timezone

Understanding the EMC effect with tagged DIS measurements

Apr 13, 2023, 4:40 PM
20m
Orchestra A

Orchestra A

Speaker

Florian Hauenstein (Jefferson Lab)

Description

Understanding the modification of quarks in nucleons within nuclei (EMC effect) is a longstanding open question in nuclear physics. Recent experimental results from electron scattering at Jefferson Lab strengthen the correlation between the EMC effect and short- range correlated pairs (SRC) of nucleons in nuclei. That means that the EMC effect is probably driven by the high-momentum highly-virtual nucleons of the SRC pairs. This connection can be tested experimentally by measuring electron deep inelastic scattering from a nucleon and detecting its correlated SRC partner nucleon (tagging). This allows us to measure the quark modification of high-momentum nucleons.

Two tagged experiments on deuterium are underway at Jefferson Lab of which one already took data and the other will take data next year.
In my talk, I will present the current knowledge of the EMC-SRC correlation, and present preliminary results from the tagged experiment on deuterium at Jefferson Lab's experimental HallB where the modification of protons were measured by tagging the recoiling neutrons.

Primary author

Florian Hauenstein (Jefferson Lab)

Presentation materials