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Spin-isospin Kondo effects for Sigma(c) and Sigma(c)* baryons and (D)over-bar and (D)over-bar* mesons

机译:SIGMA(C)和SIGMA(C)* BARYONS和(D)过度的旋转肌孢子效应和(d)过度条

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摘要

We study the Kondo effect for a Sigma(c) (Sigma(c)*) baryon in nuclear matter. In terms of the spin and isospin [SU(2)(spin) x SU(2)(isospin)] symmetry, the heavy-quark spin symmetry and the S-wave interaction, we provide the general form of the Lagrangian for a Sigma(c) (Sigma(c)*) baryon and a nucleon. We analyze the renormalization equation at the one-loop level and find that the coexistence of spin exchange and isospin exchange magnifies the Kondo effect in comparison with the case where the spin-exchange interaction and the isospin-exchange interaction exist separately. We demonstrate that the solution exists for the ideal sets of the coupling constants, including the SU(4) symmetry as an extension of the SU(2)(spin) x SU(2)(isospin) symmetry. We also conduct a similar analysis for the Kondo effect of a (D) over bar ((D) over bar)*) meson in nuclear matter. On the basis of the obtained result, we conjecture that there could exist a "mapping" from the heavy meson (baryon) in vacuum onto the heavy baryon (meson) in nuclear matter.
机译:我们研究核事务中Sigma(c)(C)(Sigma(C)*)Baryon的Kondo效应。就旋旋和异旋[Su(2)(旋转)X Su(2)]对称性,重型夸克自旋对称性和S波相互作用,我们为Sigma提供了Lagrangian的一般形式(c)(Sigma(c)*)Baryon和核心。我们分析了单环级别的重整化方程,并发现旋转交换和异旋旋转源交换的共存与自旋交换相互作用和异旋交换相互作用分别存在的情况相比,相当于kondo效应。我们证明,解决方案存在于偶联常数的理想组,包括SU(4)对称作为SU(2)(旋阀)对称的延伸。我们还对核事务中的核心MESON((d)的kondo效应((d)k)蒙顿进行了类似的分析。在所获得的结果的基础上,我们猜测,可以在核物质中真空从重型梅森(Baryon)存在“映射”。

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