论文标题
gamow-teller转变和自旋EMC效应：培养基中的Bjorken Sum-Rule
Gamow-Teller transitions and the spin EMC effect: the Bjorken sum-rule in medium
论文作者
论文摘要
Nuclei中的Gamow Teller Transition告诉我们，核子的轴向电荷$ G_A^{（3）} $在大核中淬灭约20％。该结果告诉我们，核子的自旋结构在核中修饰，并且仅基于核中核子短距离相关性的Parton结构介质依赖性模型。对于偏振光生效，Gerasimov-Drell-Hearsn积分预计将在培养基中得到强烈的增强。
Gamow-Teller transitions in nuclei tell us that the nucleon's axial charge $g_A^{(3)}$ is quenched in large nuclei by about 20%. This result tells us that the spin structure of the nucleon is modified in nuclei and disfavours models of the medium dependence of parton structure based only on nucleon short range correlations in nuclei. For polarized photoproduction the Gerasimov-Drell-Hearn integral is expected to be strongly enhanced in medium.
