质子结构中的π介子
Pions in Proton Structure and Everywhere Else
摘要：
π介子云在核物理和各种低能强子现象中很重要。我们认为，这是很自然的期望它也是重要的轻子质子深度非弹性散射和质子结构的Drell-Yan研究。我们计算的必要后果的π介子云与最近的SeaQuest数据。通过使用实验的精确运动学的效果进行了详细说明。得到了与测量值良好的一致性。这样就理解了π介子效应的普遍性。
英文摘要：
The pion cloud is important in nuclear physics and in a variety of low-energy hadronic phenomena. We argue that it is natural to expect it to also be important in lepton-proton deep inelastic scattering and Drell-Yan studies of proton structure. We compute the necessary consequences of the pion cloud in connection with the recent SeaQuest data. The effects are detailed by using the exact kinematics of the experiment. Good agreement with the measurements is obtained. Thus the universality of pionic effects is understood.
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