Measuring short-range correlations and quasi-elastic cross sections in A(e,e') at x>1 and modest Q$^2$
Abstract
We present results from the Jefferson Lab E08-014 experiment, investigating short-range correlations (SRC) through measurements of inclusive quasi-elastic scattering from H, He, He, C, Ca, and Ca. The kinematics were selected to isolate scattering from SRCs, yielding a plateau in the A/H cross-section ratios due to the universal two-body structure of the 2N-SRCs in light and heavy nuclei. We observe approximate plateaus in the A/H ratios and provide the first extractions of the A/H ratio for Ca and Ca. We also examine the A/He ratio, aiming to identify three-nucleon SRCs (3N-SRCs). Following the approach for isolating 2N-SRCs, searching for 3N-SRC dominance involved measuring the A/He cross section ratio at modest-to-large values and looking for a plateau ratios for . This was not observed in the data, and in fact increasing values moved the data \textit{further away} from the predicted plateau. We show here that, when analyzed in terms of the struck nucleon's light-cone momentum, the data exhibited the expected trend, progressively approaching the predicted 3N-SRC plateau. These observations suggest that future measurements at higher energies may facilitate a definitive isolation and identification of 3N-SRCs.
Keywords
Cite
@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}
}
Comments
10pages, 5 figures, accepted by Physics Letter B. Paper under production