Studies of the Proton PropertiesE. Aaron, M. Benninghoff, J Goodwill, M. Muhoza, W. Smoot with Dr. Fatiha Benmokhtar

Protons and neutrons are made from constituents, calledquarks and gluons. The goal of this project is to makemeasurements of the spatial distributionsand the momenta of the quarks that provide a three-dimensional map of the nuclear medium. This knowledgeprovides the basis of our understanding of nuclear matterin terms of the dynamics of their internal constituents.Our group at Duquesne is investigatingthe contribution of strange quarkto the nucleon. For that a RingImaging Cherenkov detector (RICH)was built and we present herea summary to our contributionto the project.

A full RICH detector is installed and functional. Asecond RICH detector is under construction and willbe built during the next couple of years. We expectour knowledge of the quarks distribution to bemuch improved than the existing data fromGermany.

Approach

Introduction

Status and Expected Results

Ref: F. Benmokhtar et al., Jefferson lab proposal E12-09-007F. Benmokhtar: NSF grant # 1615067

PMT array installed

Data Analysis Hardware work

Laser test setup to study the PMTsSlow Control Programming

Physics data MonitoringSimulation and particle reconstruction

Jlab

CLAS12

RICH