Analytic continuation in the coupling constant for resonances in Λ9Be

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外文摘要：The application scope of the analytic continuation in the coupling constant(ACCC)can be extended to the exchange parameters of the effective nucleon-nucleon interaction in the microscopic cluster model.Based on such an exchange parameter dependent ACCC(abbreviated as EPD-ACCC),we examine the Λ9Be system in the framework of the α+α+Λ microscopic cluster model.The particle emission from excited states of α+α+Λare in-vestigated,and the corresponding resonant energies are obtained via EPD-ACCC.Furthermore,the complex scaling method(CSM)is applied for comparison.A good agreement between these two theoretical approaches is obtained.This study demonstrates EPD-ACCC to be a reliable method for estimating multi-cluster resonances in light hyper-nuclei.

外文关键词：

hypernuclearmicroscopic cluster modelresonance

作者：

张涵韬、柏栋、任中洲

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作者单位：

School of Physics Science and Engineering,Tongji University,Shanghai 200092,China

College of Mechanics and Engineering Science,Hohai University,Nanjing 211100,China

Key Laboratory of Advanced Micro-Structure Materials,Ministry of Education,Shanghai 200092,China

出版年：

2025

DOI：