Inclusive studies of two- and three-nucleon short-range correlations in $^3$H and $^3$He

Li, S. (author), Mihovilovič, Miha (author), Širca, Simon (author)

Inclusive electron scattering at carefully chosen kinematics can isolate scattering from the high-momentum nucleons in short-range correlations (SRCs). SRCs are produced by the hard, short-distance interactions of nucleons in the nucleus, and because the two-nucleon (2N) SRCs arise from the same N-N interaction in all nuclei, the cross section in the SRC-dominated regime is identical up to an overall scaling factor. This scaling behavior has been used to identify SRC dominance and to measure the contribution of SRCs in a wide range of nuclei. We examine this scaling behavior over a range of momentum transfers using new data on $^2$H, $^3$H, and $^3$He, and find an expanded scaling region compared to heavy nuclei. Motivated by this improved scaling, we examine the $^3$H and $^3$He data in kinematics where three-nucleon SRCs may play an important role. The data for the largest struck nucleon momenta are consistent with isolation of scattering from three-nucleon SRCs, and suggest that the very highest momentum nucleons in $^3$He have a nearly isospin-independent momentum configuration.

• Language: English
• Keywords: experimental nuclear physics, nuclear reactions
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FMF - Faculty of Mathematics and Physics
• Publication status: Published
• Publication version: Version of Record
• Year: 2025
• Number of pages: 6 str.
• Numbering: Vol. 868, art. no. 139734
• PID: 20.500.12556/RUL-171482
• UDC: 539.12
• ISSN on article: 1873-2445
• DOI: 10.1016/j.physletb.2025.139734
• COBISS.SI-ID: 246722563
• Publication date in RUL: 27.08.2025

Record is a part of a journal

• Title: Physics letters
• Shortened title: Phys. lett., B
• Publisher: Elsevier Science
• ISSN: 1873-2445
• COBISS.SI-ID: 524694809

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: eksperimentalna jedrska fizika, jedrske reakcije