论文标题

从(E,E'P)数据确定钛光谱函数

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

论文作者

Jiang, L., Ankowski, A. M., Abrams, D., Gu, L., Aljawrneh, B., Alsalmi, S., Bane, J., Batz, A., Barcus, S., Barroso, M., Bellini, V., Benhar, O., Bericic, J., Biswas, D., Camsonne, A., Castellanos, J., Chen, J. -P., Christy, M. E., Craycraft, K., Cruz-Torres, R., Dai, H., Day, D., Dirican, A., Dusa, S. -C., Fuchey, E., Gautam, T., Giusti, C., Gomez, J., Gu, C., Hague, T. J., Hansen, J. -O., Hauenstein, F., Higinbotham, D. W., Hyde, C., Jerzyk, Z., Johnson, A. M., Keppel, C., Lanham, C., Li, S., Lindgren, R., Liu, H., Mariani, C., McClellan, R. E., Meekins, D., Michaels, R., Mihovilovic, M., Murphy, M., Nguyen, D., Nycz, M., Ou, L., Pandey, B., Pandey, V., Park, K., Perera, G., Puckett, A. J. R., Santiesteban, S. N., Širca, S., Su, T., Tang, L., Tian, Y., Ton, N., Wojtsekhowski, B., Wood, S., Ye, Z., Zhang, J.

论文摘要

在Jefferson Lab Hall A中进行的E12-14-012实验已使用天然钛靶标在平行运动学中测量了(E,E'P)横截面。在这里,我们报告了对应于光束能量2.2 GEV的数据集的分析的完整结果,并跨越缺失动量和缺失的能量范围15 <= pm <= 250 meV/c/c/c和12 <= em <= 80 meV。减少的横截面的精度均以〜7%的精度测量,这是缺失动量和缺失能量的功能。我们将我们的数据与使用模型光谱函数进行的蒙特卡洛模拟的结果进行了比较,包括最终状态相互作用的效果。数据和模拟之间的总体一致性相当好(CHI2/D.O.F。= 0.9)。

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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