期刊
PHYSICAL REVIEW LETTERS
卷 106, 期 25, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.252002
关键词
-
资金
- National Science Council of the Republic of China
- U.S. National Science Foundation
The existence of the five-quark Fock states for the intrinsic charm quark in the nucleons was suggested some time ago, but conclusive evidence is still lacking. We generalize the previous theoretical approach to the light-quark sector and study possible experimental signatures for such five-quark states. In particular, we compare the (d) over bar - (u) over bar and (u) over bar + (d) over bar - s - (s) over bar data with the calculations based on the five-quark Fock states. The qualitative agreement between the data and the calculations is interpreted as evidence for the existence of the intrinsic light-quark sea in the nucleons. The probabilities for the |uudu (u) over bar > and |uudd (d) over bar > Fock states are also extracted.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据