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        "title": "Measurement of Nuclear Transparency for the A(e,e′π+) Reaction",
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        "description": "Transparency is a model-dependent super-ratio involving a simulated reference without pion–nucleon final-state interactions, not a direct image of a small pion. Observations support the stated model comparison, not a unique proof of color transparency or QCD factorization. Model and point-to-point uncertainties are separate, the compared models share parameters, and the authors called for higher-momentum data. The individual contributor list shown here is incomplete. Figure 2 labels aluminium as 29Al while the text identifies 27Al; preserve the original discrepancy pending verification.",
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      "statement": "# Nuclear transparency in pion electroproduction\n\nClasie and collaborators measured pion electroproduction on deuterium, carbon, aluminium, copper and gold targets over momentum transfers squared of approximately 1.1–4.7 (GeV/c)². Their extracted nuclear transparency and its target-mass dependence varied with momentum transfer, in better agreement with the specific calculations incorporating color transparency than with the displayed conventional calculations.\n\n## Scientific scope\n\nTransparency is a model-dependent super-ratio involving a simulated reference without pion–nucleon final-state interactions, not a direct image of a small pion. Observations support the stated model comparison, not a unique proof of color transparency or QCD factorization. Model and point-to-point uncertainties are separate, the compared models share parameters, and the authors called for higher-momentum data. The individual contributor list shown here is incomplete. Figure 2 labels aluminium as 29Al while the text identifies 27Al; preserve the original discrepancy pending verification.\n\n## Reading status\n\nThis is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.\n\n## People and systems\n\nB. Clasie; X. Qian; J. Arrington\n\nThese are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.\n\n\n\n## Original sources\n\n- [Measurement of Nuclear Transparency for the A(e,e′π+) Reaction](https://arxiv.org/pdf/0707.1481v1)\n",
      "summary": "Clasie and collaborators measured pion electroproduction on deuterium, carbon, aluminium, copper and gold targets over momentum transfers squared of approximately 1.1–4.7 (GeV/c)². Their extracted nuclear transparency and its target-mass dependence varied with momentum transfer, in better agreement with the specific calculations incorporating color transparency than with the displayed conventional calculations.",
      "title": "Nuclear transparency in pion electroproduction"
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    "title": "Nuclear transparency in pion electroproduction",
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    "what_changed": "Clasie and collaborators measured pion electroproduction on deuterium, carbon, aluminium, copper and gold targets over momentum transfers squared of approximately 1.1–4.7 (GeV/c)². Their extracted nuclear transparency and its target-mass dependence varied with momentum transfer, in better agreement with the specific calculations incorporating color transparency than with the displayed conventional calculations.",
    "scope": "Clasie and collaborators measured pion electroproduction on deuterium, carbon, aluminium, copper and gold targets over momentum transfers squared of approximately 1.1–4.7 (GeV/c)². Their extracted nuclear transparency and its target-mass dependence varied with momentum transfer, in better agreement with the specific calculations incorporating color transparency than with the displayed conventional calculations. Transparency is a model-dependent super-ratio involving a simulated reference without pion–nucleon final-state interactions, not a direct image of a small pion. Observations support the stated model comparison, not a unique proof of color transparency or QCD factorization. Model and point-to-point uncertainties are separate, the compared models share parameters, and the authors called for higher-momentum data. The individual contributor list shown here is incomplete. Figure 2 labels aluminium as 29Al while the text identifies 27Al; preserve the original discrepancy pending verification.",
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