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arXiv 0708.0773nucl-th
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手征有效场论中S=-1,-2重子-重子相互作用

S=-1,-2 baryon-baryon interactions in chiral effective field theory

H. Polinder

摘要:

我们用手征有效场论方法构造了首阶奇异重子-重子势S=-1,-2。手征势由一个赝标介子交换项和不可导的四重子接触项组成。势,使用SU(3)对称性约束,包含六个独立的低能系数。我们求解了正则化的Lippmann-Schwinger方程,并对现有的散射数据进行了很好的描述。进而得到了一个正确有界的超曲子。

英文摘要:

We have constructed the leading order strangeness S=-1,-2 baryon-baryon potential in a chiral effective field theory approach. The chiral potential consists of one-pseudoscalar-meson exchanges and non-derivative four-baryon contact terms. The potential, derived using SU(3) symmetry constraints, contains six independent low-energy coefficients. We have solved a regularized Lippmann-Schwinger equation and achieved a good description of the available scattering data. Furthermore a correctly bound hypertriton has been obtained.

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。

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