Measurement of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi mathvariant="normal">Ar</mml:mi><mml:mo>(</mml:mo><mml:mi>e</mml:mi><mml:mo>,</mml:mo><mml:msup><mml:mi>e</mml:mi><mml:mo>′</mml:mo></mml:msup><mml:mi>p</mml:mi><mml:mo>)</mml:mo></mml:mrow></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi mathvariant="normal">Ti</mml:mi><mml:mo>(</mml:mo><mml:mi>e</mml:mi><mml:mo>,</mml:mo><mml:msup><mml:mi>e</mml:mi><mml:mo>′</mml:mo></mml:msup><mml:mi>p</mml:mi><mml:mo>)</mml:mo></mml:mrow></mml:math> cross sections in Jefferson Lab Hall A
L. Gu, D. Abrams, Artur M. Ankowski, L. Jiang, B. Aljawrneh, S. Alsalmi, J. Bane, Austin Batz, S. Barcus, Marta F. Barroso, Omar Benhar, Vincenzo Bellini, J. Beričič, D. Biswas, A. Camsonne, J. Castillo Castellanos, J.-P. Chen, M. E. Christy, K. Craycraft, R. Cruz-Torres, H. L. Dai, Donal B. Day, S. Covrig Dusa, E. Fuchey, T. Gautam, C. Giusti, J. Gómez, C. Gu, T. J. Hague, O. Hansen, F. Hauenstein, D. W. Higinbotham, C. E. Hyde-Wright, C. Keppel, S. Li, R. Lindgren, H. Liu, C. Mariani, R. E. McClellan, D. Meekins, R. Michaels, M. Mihovilovič, M. Murphy, D. Nguyen, M. Nycz, Li Ou, B. Pandey, V. Pandey, K. Park, G. Shani Nimeshika Perera, A. J. R. Puckett, S. N. Santiesteban, S. Širca, T. Su, L. Tang, Y. Tian, N. Ton, B. Wojtsekhowski, S. A. Wood, Z. Ye, J. Zhang
Abstract
The E12-14-012 experiment, performed in Jefferson Lab Hall A, has collected exclusive electron-scattering data $(e,{e}^{\ensuremath{'}}p)$ in parallel kinematics using natural argon and natural titanium targets. Here we report the first results of the analysis of the data set corresponding to beam energy 2222 GeV, electron scattering angle $21.{5}^{\ensuremath{\circ}}$, and proton emission angle $\ensuremath{-}{50}^{\ensuremath{\circ}}$. The differential cross sections, measured with $\ensuremath{\approx}4%$ uncertainty, have been studied as a function of missing energy and missing momentum, and compared to the results of Monte Carlo simulations, obtained from a model based on the distorted-wave impulse approximation.