Measurement of the Nucleon F2n/F2p Structure Function Ratio by the Jefferson Lab MARATHON Tritium/Helium-3 Deep Inelastic Scattering Experiment

D. Abrams, H. Albataineh, BS Aljawrneh, S. Alsalmi, K Aniol,Whitney Armstrong, J. Arrington, H. Atac, T. Averett,C. Ayerbe Gayoso, X. Bai, J. Bane, S. Barcus, A. Beck, Bellini, H. Bhatt, D. Bhetuwal,D. Biswas, D. Blyth, W. U. Boeglin, D. Bulumulla, J Butler,Alexandre Camsonne, M Carmignotto,J. Castellanos,J-P. Chen,Eliahu Cohen, S. Covrig, K Craycraft, R. Cruz-Torres, B. Dongwi, B. Duran,Dipangkar Dutta, E. Fuchey, C. Gal, T. Gautam, Shalev Gilad,Kondo Gnanvo,Toshiyuki Gogami,J. Gomez, C. Gu, A. Habarakada,T. Hague,J-O Hansen, M. Hattawy, F. Hauenstein,Douglas Higinbotham, RJ Holt, Elliot Hughes, C. E. Hyde, H. F. Ibrahim,Siyu Jian, Sylvester Joosten, A. Karki, B. Karki, A. T. Katramatou,C. D. Keith,Cynthia Keppel, M. Khachatryan, Khachatryan, Aditya R. Khanal, A Kievsky, D. King,P. M. King, I. Korover,Sergey A. Kulagin,K. S. Kumar, T Kutz,N. Lashley-Colthirst,Shanfeng Li,Weidong Li, Hongjun Liu,Simonetta Liuti,Nilanga Liyanage,Pete Markowitz, R. E. McClellan,D. G. Meekins,S. Mey-Tal Beck,Z. E. Meziani,R. Michaels, M Mihovilovic, Nelyubin,D. Nguyen, Nuruzzaman

Physical Review Letters（2022）

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摘要

The ratio of the nucleon F_{2} structure functions, F_{2}^{n}/F_{2}^{p}, is determined by the MARATHON experiment from measurements of deep inelastic scattering of electrons from ^{3}H and ^{3}He nuclei. The experiment was performed in the Hall A Facility of Jefferson Lab using two high-resolution spectrometers for electron detection, and a cryogenic target system which included a low-activity tritium cell. The data analysis used a novel technique exploiting the mirror symmetry of the two nuclei, which essentially eliminates many theoretical uncertainties in the extraction of the ratio. The results, which cover the Bjorken scaling variable range 0.19更多

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关键词

nucleon,jefferson lab marathon tritium/helium-3,structure function ratio,scattering,structure function

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