Quasielastic ^3he(e,e') Asymmetry in the Threshold Region

M. Nycz, W. Armstrong, T. Averett,C. Ayerbe Gayoso, X. Bai,J. Bane,S. Barcus, J. Benesch, H. Bhatt,D. Bhetuwal, D. Biswas, A. Camsonne, G. Cates,J-P. Chen,J. Chen, M. Chen, C. Cotton, M-M. Dalton, A. Deltuva, A. Deur, B. Dhital, B. Duran,S. C. Dusa, I. Fernando, E. Fuchey,B. Gamage, H. Gao, D. Gaskell,T. Gautam, N. Gauthier, J. Golak, J. -O. Hansen, F. Hauenstein, W. Henry, D. W. Higinbotham, G. Huber,C. Jantzi, S. Jia, K. Jin, M. Jones, S. Joosten, A. Karki, B. Karki,S. Katugampola, S. Kay, C. Keppel, E. King, P. King, W. Korsch, V. Kumar, R. Li, S. Li, W. Li, D. Mack,S. Malace, P. Markowitz,J. Matter,M. McCaughan,Z-E. Meziani, R. Michaels, A. Mkrtchyan, H. Mkrtchyan,C. Morean, V. Nelyubin, G. Niculescu, M. Niculescu, C. Peng,S. Premathilake, A. Puckett,A. Rathnayake,M. Rehfuss, P. Reimer, G. Riley, Y. Roblin, J. Roche, M. Roy, P. U. Sauer, S. Scopeta, M. Satnik, B. Sawatzky,S. Seeds, S. S. Širca, R. Skibiński, G. Smith, N. Sparveris,H. Szumila-Vance,A. Tadepalli, V. Tadevosyan, Y. Tian, A. Usman, H. Voskanyan, H. Witala, S. Wood,B. Yale,C. Yero, A. Yoon, J. Zhang, Z. Zhao, X. Zheng, J. Zhou

arxiv（2024）

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摘要

A measurement of the double-spin asymmetry from electron-^3He scattering in the threshold region of two- and three-body breakup of ^3He was performed at Jefferson Lab, for Q^2 values of 0.1 and 0.2 (GeV/c)^2. The results of this measurement serve as a stringent test of our understanding of few-body systems. When compared with calculations from plane wave impulse approximation and Faddeev theory, we found that the Faddeev calculations, which use modern nuclear potentials and prescriptions for meson-exchange currents, demonstrate an overall good agreement with data.

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