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用横向极化散射探测夸克-胶子相互作用

Probing Quark-Gluon Interactions with Transverse Polarized Scattering

K. Slifer, O. A. Rondon, A. Aghalaryan, A. Ahmidouch, R. Asaturyan, F. Bloch, W. Boeglin, P. Bosted, C. Carasco, R. Carlini, J. Cha, J. P. Chen, M. E. Christy, … 展开作者

K. Slifer, O. A. Rondon, A. Aghalaryan, A. Ahmidouch, R. Asaturyan, F. Bloch, W. Boeglin, P. Bosted, C. Carasco, R. Carlini, J. Cha, J. P. Chen, M. E. Christy, L. Cole, L. Coman, D. Crabb, S. Danagoulian, D. Day, J. Dunne, M. Elaasar, R. Ent, H. Fenker, E. Frlez, D. Gaskell, L. Gan, J. Gomez, B. Hu, J. Jourdan, M. K. Jones, C. Keith, C. E. Keppel, M. Khandaker, A. Klein, L. Kramer, Y. Liang, J. Lichtenstadt, R. Lindgren, D. Mack, P. McKee, D. McNulty, D. Meekins, H. Mkrtchyan, R. Nasseripour, I. Niculescu, K. Normand, B. Norum, D. Pocanic, Y. Prok, B. Raue, J. Reinhold, J. Roche, D. Kiselev, N. Savvinov, B. Sawatzky, M. Seely, I. Sick, C. Smith, G. Smith, S. Stepanyan, L. Tang, S. Tajima, G. Testa, W. Vulcan, K. Wang, G. Warren, F. R. Wesselmann, S. Wood, C. Yan, L. Yuan, J. Yun, M. Zeier, H. Zhu

备注：
formerly "Nachtmann Moments of the Proton and Deuteron Spin Structure Functions"
发表信息：
Phys.Rev.Lett.105:101601,2010
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摘要：

我们从电子在原子核上的双极化非弹性散射数据中提取了QCD矩阵元。我们发现严格由夸克-胶子相互作用产生的高扭矩阵元\tilde{d_2}是明确非零的。如果我们假设Burkhartt-Cottingham求和规则是有效的，则数据还揭示了更高扭曲效应的同位旋依赖性。从a0矩阵元得到的基本Bjorken求和规则在我们的低动量传递下是满足的。

英文摘要：

We have extracted QCD matrix elements from our data on double polarized inelastic scattering of electrons on nuclei. We find the higher twist matrix element \tilde{d_2}, which arises strictly from quark- gluon interactions, to be unambiguously non zero. The data also reveal an isospin dependence of higher twist effects if we assume that the Burkhardt-Cottingham Sum rule is valid. The fundamental Bjorken sum rule obtained from the a0 matrix element is satisfied at our low momentum transfer.

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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