测量A(e,e')在x>1和适度Q$^2$条件下的短程关联与准弹性横截面
核实验
2025-12-16 v2 高能物理 - 唯象学
摘要
我们呈现了来自 Jefferson Lab E08-014 实验的结果，研究通过测量 H、He、He、C、Ca 和 Ca 的包容性准弹性散射来探讨短程关联（SRC）。选取的动力学条件旨在隔离来自 SRC 的散射，导致 A/H 横截面比值出现平台态，这源于 2N-SRC 在轻质和重核中的普适两体结构。我们观察到 A/H 比值中约等于平台态的现象，并首次提供了 Ca 和 Ca 的 A/H 比值的提取。我们还检查了 A/He 比值，旨在识别三核短程关联（3N-SRC）。在隔离 2N-SRC 的方法下，搜索 3N-SRC 的主导作用涉及测量在适度至大 值下的 A/He 横截面比值，并寻找 的平台比值。但在数据中未观察到这一现象，实际上更大的 值使数据偏离预测的平台。我们指出，当以击打核子的光锥动量为分析基准时，数据显示出预期的趋势，逐渐接近预测的 3N-SRC 平台。这些观察表明，未来的高能量测量可能有助于确切地隔离和识别 3N-SRC。
关键词
引用
@article{arxiv.2504.17462,
title = {Measuring short-range correlations and quasi-elastic cross sections in A(e,e') at x>1 and modest Q$^2$},
author = {Y. P. Zhang and Z. H. Ye and D. Nguyen and P. Aguilera and Z. Ahmed and H. Albataineh and K. Allada and B. Anderson and D. Anez and K. Aniol and J. Annand and J. Arrington and T. Averett and H. Baghdasaryan and X. Bai and A. Beck and S. Beck and V. Bellini and F. Benmokhtar and A. Camsonne and C. Chen and J. -P. Chen and K. Chirapatpimol and E. Cisbani and S. Covrig Dusa and M. M. Dalton and D. Day and W. Deconinck and M. Defurne and D. Flay and N. Fomin and M. Friend and E. Fuchey and F. Garibaldi and D. Gaskell and S. Gilad and R. Gilman and S. Glamazdin and C. Gu and P. Gu`eye and C. Hanretty and J. -O. Hansen and M. Hashemi Shabestari and D. W. Higinbotham and M. Huang and S. Iqbal and G. Jin and N. Kalantarians and H. Kang and A. Kelleher and I. Korover and J. LeRose and J. Leckey and S. Li and R. Lindgren and E. Long and J. Mammei and P. Markowitz and D. Meekins and R. Michaels and M. Mihovilovic and N. Muangma and C. Munoz Camacho and B. E. Norum and Nuruzzaman and K. Pan and S. Phillips and E. Piasetzky and I. Pomerantz and M. Posik and V. Punjabi and X. Qian and Y. Qiang and X. Qiu and P. E. Reimer and A. Rakhman and S. Riordan and G. Ron and O. Rondon-Aramayo and L. Selvy and A. Shahinyan and R. Shneor and S. S and K. Slifer and N. Sparveris and R. Subedi and V. Sulkosky and D. Wang and J. W. Watson and L. B. Weinstein and B. Wojtsekhowski and S. A. Wood and I. Yaron and J. Zhang and Y. W. Zhang and B. Zhao and X. Zheng and P. Zhu and R. Zielinski},
journal= {arXiv preprint arXiv:2504.17462},
year = {2025}
}
备注
10pages, 5 figures, accepted by Physics Letter B. Paper under production