Novel observation of isospin structure of short-range correlations in calcium isotopes

D. Nguyen, Z. Ye, P. Aguilera, Z. Ahmed, H. Albataineh, K. Allada, B. Anderson, D. Anez, K. Aniol, J. Annand, J. Arrington, T. Averett, H. Baghdasaryan, X. Bai, A. Beck, S. Beck, V. Bellini, F. Benmokhtar, A. Camsonne, C. ChenJ. P. Chen, K. Chirapatpimol, E. Cisbani, M. M. Dalton, A. Daniel, D. Day, W. Deconinck, M. Defurne, D. Flay, N. Fomin, M. Friend, S. Frullani, E. Fuchey, F. Garibaldi, D. Gaskell, S. Gilad, R. Gilman, S. Glamazdin, C. Gu, P. Guèye, C. Hanretty, J. O. Hansen, M. Hashemi Shabestari, D. W. Higinbotham, M. Huang, S. Iqbal, G. Jin, N. Kalantarians, H. Kang, A. Kelleher, I. Korover, J. Lerose, J. Leckey, S. Li, R. Lindgren, E. Long, J. Mammei, D. J. Margaziotis, P. Markowitz, D. Meekins, Z. E. Meziani, R. Michaels, M. Mihovilovic, N. Muangma, C. Munoz Camacho, B. E. Norum, Nuruzzaman, K. Pan, S. Phillips, E. Piasetzky, I. Pomerantz, M. Posik, V. Punjabi, X. Qian, Y. Qiang, X. Qiu, P. E. Reimer, A. Rakhman, S. Riordan, G. Ron, O. Rondon-Aramayo, A. Saha, L. Selvy, A. Shahinyan, R. Shneor, S. Širca, K. Slifer, P. Solvignon, N. Sparveris, R. Subedi, V. Sulkosky, D. Wang, J. W. Watson, L. B. Weinstein, B. Wojtsekhowski, S. A. Wood, I. Yaron, X. Zhan, J. Zhang, Y. W. Zhang, B. Zhao, X. Zheng, P. Zhu, R. Zielinski

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Abstract

Short-range correlations (SRCs) have been identified as being responsible for the high-momentum tail of the nucleon momentum distribution, n(k). Hard, short-range interactions of nucleon pairs generate the high-momentum tail and imprint a universal character on n(k) for all nuclei at large momentum. Triple coincidence experiments have shown a strong dominance of np pairs, but these measurements involve large final-state interactions. This paper presents the results from Jefferson Lab experiment E08014 which measured inclusive electron scattering cross section from Ca isotopes. By comparing the inclusive cross section from Ca48 to Ca40 in a kinematic region dominated by SRCs we provide a new way to study the isospin structure of SRCs.

Original languageEnglish
Article number064004
JournalPhysical Review C
Volume102
Issue number6
DOIs
StatePublished - Dec 14 2020
Externally publishedYes

Funding

We acknowledge the outstanding support from the Hall A technical staff and the JLab target group. This work was supported in part by the Department of Energy's Office of Science, Office of Nuclear Physics, under Contracts No. DE-AC02-06CH11357 and No. DE-FG02-96ER40950, and the National Science Foundation, and under DOE Contract No. DE-AC05-06OR23177, under which JSA, LLC operates JLab. The isotope used in this research was supplied by the Isotope Program within the Office of Nuclear Physics in the Department of the Energy's Office of Science. Experiment E08-014 was developed by Patricia Solvignon whose passing is still mourned by our community.

FundersFunder number
Office of Nuclear PhysicsDE-AC02-06CH11357, DE-FG02-96ER40950
National Science Foundation
U.S. Department of EnergyDE-AC05-06OR23177
U.S. Department of Energy
Office of Science

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