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Abstract: Di-hadron Correlations in eA scattering at CLAS

ORAL

Abstract

Two of the questions posed by the 2023 Nuclear Science Long Range Plan are how hadrons produced in deep inelastic scattering are correlated with one another, and how the nuclear medium modifies the hadronization process. The results we present in this talk on azimuthal correlations in pairs of charged pions measured by the CLAS collaboration seek to answer both of these questions. We find that the correlation functions peak at Δφ=π and that this peak is shorter and wider for heavier nuclei than for deuterium. We will also give predictions for similar planned measurements of di-pion and pion-proton correlations in a follow-up experiment with the upgraded

CLAS12 detector setup.

* The authors acknowledge the staff of the Accelerator and Physics Divisions at the Thomas Jefferson National Accelerator Facility who made this experiment possible. This work was supported in part by the Chilean Agencia Nacional de Investigacion y Desarollo (ANID), by ANID PIA grant ACT1413, by ANID PIA/APOYO AFB180002, by ANID FONDECYT No. 1161642 and No. 1201964 and No. 11181215, by the U.S. Department of Energy, the Italian Instituto Nazionale di Fisica Nucleare, the French Centre National de la Recherche Scientifique, the French Commissariat \`a l'Energie Atomique, the United Kingdom Science and Technology Facilities Council (STFC), the Scottish Universities Physics Alliance (SUPA), the National Research Foundation of Korea, the National Science Foundation (NSF), the HelmholtzForschungsakademie Hessen für FAIR (HFHF), the Ministry of Science and Higher Education of the Russian Federation, and the Office of Research and Economic Development at Mississippi State University. This work has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant agreement No. 804480). The Southeastern Universities Research Association operates the Thomas Jefferson National Accelerator Facility for the United States Department of Energy under Contract No. DE-AC05-06OR23177.

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Presenters

  • Sebouh J Paul

    University of California, Riverside

Authors

  • Sebouh J Paul

    University of California, Riverside