Inclusive studies of two- and three-nucleon short-range correlations in
^3H and ^3He
S. Li,S. N. Santiesteban,J. Arrington,R. Cruz-Torres,L. Kurbany,D. Abrams,S. Alsalmi,D. Androic,K. Aniol,T. Averett,C. Ayerbe Gayoso,J. Bane,S. Barcus,J. Barrow,A. Beck,V. Bellini,H. Bhatt,D. Bhetuwal,D. Biswas,D. Bulumulla,A. Camsonne,J. Castellanos,J. Chen,J-P. Chen,D. Chrisman,M. E. Christy,C. Clarke,S. Covrig,K. Craycraft,D. Day,D. Dutta,E. Fuchey,C. Gal,F. Garibaldi,T. N. Gautam,T. Gogami,J. Gomez,P. Guéye,A. Habarakada,T. J. Hague,J. O. Hansen,F. Hauenstein,W. Henry,D. W. Higinbotham,R. J. Holt,C. Hyde,K. Itabashi,M. Kaneta,A. Karki,A. T. Katramatou,C. E. Keppel,M. Khachatryan,V. Khachatryan,P. M. King,I. Korover,T. Kutz,N. Lashley-Colthirst,W. B. Li,H. Liu,N. Liyanage,E. Long,J. Mammei,P. Markowitz,R. E. McClellan,F. Meddi,D. Meekins,S. Mey-Tal Beck,R. Michaels,M. Mihovilovič,A. Moyer,S. Nagao,V. Nelyubin,D. Nguyen,M. Nycz,M. Olson,L. Ou,V. Owen,C. Palatchi,B. Pandey,A. Papadopoulou,S. Park,S. Paul,T. Petkovic,R. Pomatsalyuk,S. Premathilake,V. Punjabi,R. D. Ransome,P. E. Reimer,J. Reinhold,S. Riordan,J. Roche,V. M. Rodriguez,A. Schmidt,B. Schmookler,E. P. Segarra,A. Shahinyan,S. Širca,K. Slifer,P. Solvignon,T. Su,R. Suleiman,H. Szumila-Vance,L. Tang,Y. Tian,W. Tireman,F. Tortorici,Y. Toyama,K. Uehara,G. M. Urciuoli,D. Votaw,J. Williamson,B. Wojtsekhowski,S. Wood,Z. H. Ye,J. Zhang,X. Zheng
arxiv（2024）
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摘要
Inclusive electron scattering at carefully chosen kinematics can isolate
scattering from short-range correlations (SRCs), produced through hard,
short-distance interactions of nucleons in the nucleus. Because the two-nucleon
(2N) SRCs arise from the same N-N interaction in all nuclei, the cross section
in the SRC-dominated regime is identical up to an overall scaling factor, and
the A/2H cross section ratio is constant in this region. This scaling behavior
has been used to identify SRC dominance and to map out the contribution of SRCs
for a wide range of nuclei. We examine this scaling behavior at lower momentum
transfers using new data on ^2H, ^3H, and ^3He which show that the
scaling region is larger than in heavy nuclei. Based on the improved scaling,
especially for ^3H/^3He, we examine the ratios at kinematics where
three-nucleon SRCs may play an important role. The data for the largest initial
nucleon momenta are consistent with isolation of scattering from 3N-SRCs, and
suggest that the very-highest momentum nucleons in ^3He have a nearly
isospin-independent momentum configuration, or a small enhancement of the
proton distribution.
