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arXiv 2011.00703nucl-exhep-exnucl-th
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排除在准弹性$^{12}$ C（e，e 'p）中的颜色透明度，最高可达14.2（GeV/c）的$Q^2$ $^2$

Ruling out color transparency in quasi-elastic $^{12}$C(e,e'p) up to $Q^2$ of 14.2 (GeV/c)$^2$

D. Bhetuwal, J. Matter, H. Szumila-Vance, M. L. Kabir, D. Dutta, R. Ent, D. Abrams, Z. Ahmed, B. Aljawrneh, S. Alsalmi, R. Ambrose, D. Androic, W. Armstrong, A.… 展开作者

D. Bhetuwal, J. Matter, H. Szumila-Vance, M. L. Kabir, D. Dutta, R. Ent, D. Abrams, Z. Ahmed, B. Aljawrneh, S. Alsalmi, R. Ambrose, D. Androic, W. Armstrong, A. Asaturyan, K. Assumin-Gyimah, C. Ayerbe Gayoso, A. Bandari, S. Basnet, V. Berdnikov, H. Bhatt, D. Biswas, W. U. Boeglin, P. Bosted, E. Brash, M. H. S. Bukhari, H. Chen, J. P. Chen, M. Chen, E. M. Christy, S. Covrig, K. Craycraft, S. Danagoulian, D. Day, M. Diefenthaler, M. Dlamini, J. Dunne, B. Duran, R. Evans, H. Fenker, N. Fomin, E. Fuchey, D. Gaskell, T. N. Gautam, F. A. Gonzalez, J. O. Hansen, F. Hauenstein, A. V. Hernandez, T. Horn, G. M. Huber, M. K. Jones, S. Joosten, A. Karki, C. Keppel, A. Khanal, P. M. King, E. Kinney, H. S. Ko, M. Kohl, N. Lashley-Colthirst, S. Li, W. B. Li, A. H. Liyanage, D. Mack, S. Malace, P. Markowitz, D. Meekins, R. Michaels, A. Mkrtchyan, H. Mkrtchyan, S. J. Nazeer, S. Nanda, G. Niculescu, I. Niculescu, D. Nguyen, Nuruzzaman, B. Pandey, S. Park, E. Pooser, A. Puckett, M. Rehfuss, J. Reinhold, N. Santiesteban, B. Sawatzky, G. R. Smith, A. Sun, V. Tadevosyan, R. Trotta, S. A. Wood, C. Yero, J. Zhang

备注：
5 pages, 2 figures
发表信息：
Phys. Rev. Lett. 126, 082301 (2021)
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摘要：

准弹性$^{12}$ C $(e,e'p)$散射在类空间4-动量转移平方$Q^2$ ~=~8，9.4，11.4和14.2（GeV/c）$^2$下测量，这是迄今为止达到的最高值。通过将测量的产率与没有任何终态相互作用的平面波脉冲近似计算的预期产率进行比较，提取了该反应的核透明度。测量的透明度与不依赖于$Q^2$一致，质子动量高达8.5~GeV/c，排除了排他性$(e,e'p)$反应中测量的$Q^2$尺度下颜色透明度的量子色动力学效应。这些结果对质子的颜色透明度模型施加了严格的限制。

英文摘要：

Quasielastic $^{12}$C$(e,e'p)$ scattering was measured at space-like 4-momentum transfer squared $Q^2$~=~8, 9.4, 11.4, and 14.2 (GeV/c)$^2$, the highest ever achieved to date. Nuclear transparency for this reaction was extracted by comparing the measured yield to that expected from a plane-wave impulse approximation calculation without any final state interactions. The measured transparency was consistent with no $Q^2$ dependence, up to proton momenta of 8.5~GeV/c, ruling out the quantum chromodynamics effect of color transparency at the measured $Q^2$ scales in exclusive $(e,e'p)$ reactions. These results impose strict constraints on models of color transparency for protons.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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