Observing short-range correlations in nuclei through $ρ^0$ photo-production
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arXiv
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| Main Authors: | , |
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| Format: | Preprint |
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2025
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| _version_ | 1866910859047993344 |
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| author | Sharp, Phoebe Schmidt, Axel |
| author_facet | Sharp, Phoebe Schmidt, Axel |
| contents | Short-range correlations (SRCs) are a universal feature of nuclear structure. A wide range of measurements, primarily using electron scattering, have revealed SRC properties, such as their abundance in different nuclei, as well as the strong preference for proton-neutron pairing over proton-proton or neutron-neutron pairing. Despite the inherent complexity of many-body systems, a number of the salient features of electron scattering measurements are described by a simple, factorized theory called Generalized Contact Formalism. A key element of this theory, the factorization of the interaction with a hard probe, has yet to be tested. An experiment conducted at Jefferson Lab in 2021 collected data from scattering a tagged photon beam, with an energy up to 10 GeV, from several nuclear targets, measuring final state particles in the large-acceptance GlueX spectrometer. In this paper, we propose a test of probe factorization by measuring cross section ratios sensitive to proton-proton pair prevalence and relative SRC abundances in $^4$He and $^{12}$C. We present GCF predictions of the observables and make projections of the expected precision the experiment can achieve. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_15229 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Observing short-range correlations in nuclei through $ρ^0$ photo-production Sharp, Phoebe Schmidt, Axel Nuclear Theory Nuclear Experiment Short-range correlations (SRCs) are a universal feature of nuclear structure. A wide range of measurements, primarily using electron scattering, have revealed SRC properties, such as their abundance in different nuclei, as well as the strong preference for proton-neutron pairing over proton-proton or neutron-neutron pairing. Despite the inherent complexity of many-body systems, a number of the salient features of electron scattering measurements are described by a simple, factorized theory called Generalized Contact Formalism. A key element of this theory, the factorization of the interaction with a hard probe, has yet to be tested. An experiment conducted at Jefferson Lab in 2021 collected data from scattering a tagged photon beam, with an energy up to 10 GeV, from several nuclear targets, measuring final state particles in the large-acceptance GlueX spectrometer. In this paper, we propose a test of probe factorization by measuring cross section ratios sensitive to proton-proton pair prevalence and relative SRC abundances in $^4$He and $^{12}$C. We present GCF predictions of the observables and make projections of the expected precision the experiment can achieve. |
| title | Observing short-range correlations in nuclei through $ρ^0$ photo-production |
| topic | Nuclear Theory Nuclear Experiment |
| url | https://arxiv.org/abs/2501.15229 |