arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1506.00871hep-phnucl-ex
收藏

氘核中EMC效应的测量

Measurement of the EMC Effect in the Deuteron

K. A. Griffioen, J. Arrington, M. E. Christy, R. Ent, N. Kalantarians, C. E. Keppel, S. E. Kuhn, W. Melnitchouk, G. Niculescu, I. Niculescu, S. Tkachenko, J. Zhang

摘要:

我们已经确定了结构功能比$R^d_{\rm EMC}=F_2^d/(F_2^n+F_2^p)$从最近发表的$F_2^n/F_2^d$数据采取的BONUS实验使用CLAS在杰斐逊实验室。对于不变质量$W>1.4$ GeV和$Q^2>1$ GeV $^2$,该比值偏离1,斜率$dR_{\rm EMC}^{d}/dx= -0.10\pm 0.05$在0.35至0.7的Bjorken $x$范围内。观察到的EMC效应,这些运动学是一致的,与传统的核物理模型,包括离壳修正,以及与经验分析,发现EMC效应的概率成正比的短程核子核子相关。

英文摘要:

We have determined the structure function ratio $R^d_{\rm EMC}=F_2^d/(F_2^n+F_2^p)$ from recently published $F_2^n/F_2^d$ data taken by the BONuS experiment using CLAS at Jefferson Lab. This ratio deviates from unity, with a slope $dR_{\rm EMC}^{d}/dx= -0.10\pm 0.05$ in the range of Bjorken $x$ from 0.35 to 0.7, for invariant mass $W>1.4$ GeV and $Q^2>1$ GeV$^2$. The observed EMC effect for these kinematics is consistent with conventional nuclear physics models that include off-shell corrections, as well as with empirical analyses that find the EMC effect proportional to the probability of short-range nucleon-nucleon correlations.

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。

↑