arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1001.4248hep-phhep-exnucl-th
收藏

HQET中$^3P_1$和$^1P_1$之间的混合角

Mixing angle between $^3P_1$ and $^1P_1$ in HQET

Takayuki Matsuki, Toshiyuki Morii, Kohichi Seo

摘要:

有人认为在重夸克对称极限下,重轻介子的$^3P_1$和$^1P_1$态之间存在两个独立的混合角($θ= 35.3^\circ$,$-54.7^\circ$),也有人认为只有一个混合角($θ= 35.3^\circ$)。我们澄清了这两者之间的区别,并建议应采用哪一种。在HQET中给出了关于重-轻介子的$^3L_L$和$^1L_L$之间混合角的一般性讨论,并在重夸克质量极限下导出了一般关系式,在$1/m_Q$中也导出了包含一级修正的一般关系式.

英文摘要:

Some claim that there are two independent mixing angles ($θ= 35.3^\circ$, $-54.7^\circ$) between $^3P_1$ and $^1P_1$ states of heavy-light mesons in heavy quark symmetric limit, and others claim there is only one ($θ= 35.3^\circ$). We clarify the difference between these two and suggest which should be adopted. General arguments on the mixing angle between $^3L_L$ and $^1L_L$ of heavy-light mesons are given in HQET and a general relation is derived in heavy quark mass limit as well as that including the first order correction in $1/m_Q$.

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。

↑