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arxiv: 2209.14108 · v2 · pith:UUSEPLXYnew · submitted 2022-09-27 · ⚛️ nucl-ex · hep-ex· nucl-th

Determination of the titanium spectral function from (e,e'p) data

L. Jiang , A. M. Ankowski , D. Abrams , L. Gu , B. Aljawrneh , S. Alsalmi , J. Bane , A. Batz
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S. Barcus M. Barroso V. Bellini O. Benhar J. Bericic D. Biswas A. Camsonne J. Castellanos J.-P. Chen M. E. Christy K. Craycraft R. Cruz-Torres H. Dai D. Day A. Dirican S.-C. Dusa E. Fuchey T. Gautam C. Giusti J. Gomez C. Gu T. J. Hague J.-O. Hansen F. Hauenstein D. W. Higinbotham C. Hyde Z. Jerzyk A. M. Johnson C. Keppel C. Lanham S. Li R. Lindgren H. Liu C. Mariani R. E. McClellan D. Meekins R. Michaels M. Mihovilovic M. Murphy D. Nguyen M. Nycz L. Ou B. Pandey V. Pandey K. Park G. Perera A. J. R. Puckett S. N. Santiesteban S. \v{S}irca T. Su L. Tang Y. Tian N. Ton B. Wojtsekhowski S. Wood Z. Ye J. Zhang (The Jefferson Lab Hall A Collaboration)
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classification ⚛️ nucl-ex hep-exnucl-th
keywords datamissingenergyfunctioncrossmeasuredmomentumperformed
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The E12-14-012 experiment, performed in Jefferson Lab Hall A, has measured the (e,e'p) cross section in parallel kinematics using a natural titanium target. Here, we report the full results of the analysis of the data set corresponding to beam energy 2.2 GeV, and spanning the missing momentum and missing energy range 15 <= pm <= 250 MeV/c and 12 <= Em <= 80 MeV. The reduced cross section has been measured with ~7% accuracy as function of both missing momentum and missing energy. We compared our data to the results of a Monte Carlo simulations performed using a model spectral function and including the effects of final state interactions. The overall agreement between data and simulations is quite good (chi2/d.o.f. = 0.9).

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