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Phys Org

Accessing the lesser known nucleon: New neutron measurement can help physicists learn about nucleon structure and spin

Phys Org
Summary
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90% Informative

A special, 10-year-in-the -making detector has detected the neutron for the first time in a nuclear physics experiment.

The detector was designed to discard charged, non-neutron signals, but proton contamination was a problem.

Neutrons involved in DVCS are more difficult to detect because they tend to scatter 40 degrees up from the beamline, an area CLAS12 cannot access.

Neutron measurements from CEBAF allowed researchers to access one of the least known types of GPD E.

This type can be used to quantify how much constituent quarks contribute to the total spin of the nucleon.

Nucleons contain two types, or flavors, of quarks: up and down.

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95

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formal

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English

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57

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long-living

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