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6HE+209Bi계의 쿨롱 장벽 에너지 근처에서의 탄성 산란, 붕괴, 융합 단면적 데이터의 광학 모델에 의한 분석
이채호 ; 박수봉 ; 이상덕 ; 소운영 김천대학교 2003 김천대학교 논문집 Vol.24 No.-
Based on an approach proposed to calculate the direct reaction (DR) and fusion probabilities for heavy ion collisions, simultaneous x -analy- ses are performed of data of the elastic scattering, DR and fusion cross sections for the 6He+209B1 system at near-Coulomb-barrier energies, determining parameters of the polarization potential, consisting of DR and fusion parts. We show that the data are well reproduced by the potential that satisfies the dispersion relation. A Discussion is also given of nature of the threshold anomaly of the extracted potential.
장벽 에너지 근처에서의 중이온 산란, 직접 반응과 융합의 준 고전적 특성과 광혹 모델 기술
이채호 ; 박수봉 ; 이상덕 ; 소운영 김천대학교 2003 김천대학교 논문집 Vol.24 No.-
An approach is proposed to calculate the direct reaction (DR) and fusion probabilities for heavy ion collisions at near-Coulomb-barrier energies as functions of the distance of closest approach D within the framework of the optical model that introduces two types of imaginary potentials, DR and fusion. The probabilities are calculated by using par- tial DR and fusion cross sections, together with the classical relations associated with the Coulomb trajectory. Such an approach makes it pos- sible to analyze the data for angular distributions of the inclusive DR cross section, facilitating the determination of the radius parameters of the imaginary DR potential in a less ambiguous manner. Simultaneous X²-analyses are performed of relevant data for the 160+208Pb system near the Coulomb-barrier energy.