Role of dissipation on the quasielastic barrier distributions of the 20Ne+92,94,95Mo systems

IF 1.7 4区物理与天体物理 Q2 PHYSICS, NUCLEAR

Nuclear Physics A Pub Date : 2025-06-13 DOI:10.1016/j.nuclphysa.2025.123197

G. Colucci , A. Trzcińska , E. Piasecki , M. Wolińska-Cichocka , A. Barbon , Z.K. Czerski , G. D'Agata , E. De Filippo , R. Dubey , E. Geraci , B. Gnoffo , K. Hadyńska-Klȩk , G. Jaworski , M. Kisieliński , P. Koczoń , M. Kondzielska , M. Kowalczyk , Y. Leifels , B. Lommel , M. Matuszewski , B. Zalewski

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引用次数: 0

Abstract

The quasielastic barrier distributions of the ²⁰Ne + ^92,94,95Mo systems were measured at the Heavy Ion Laboratory (HIL) of the University of Warsaw. The measurement aimed at studying the influence of dissipation due to single-particle excitations on the structure of the barrier distribution. The comparison of the three systems indicates the larger number of single-particle excitations for the heaviest Mo isotopes as a leading cause of the smoothing of the barrier distribution, which loses the structure foreseen by the coupling to only collective excitations. The theoretical calculations performed including the coupling to the non-collective excitation are in good agreement with the experimental barrier distributions for the ²⁰Ne + ^92,94,95Mo systems.

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耗散对20Ne+ 92,94,95mo体系准弹性势垒分布的影响

在华沙大学重离子实验室（HIL）测量了20Ne + 92,94,95mo体系的准弹性势垒分布。测量的目的是研究单粒子激发引起的耗散对势垒分布结构的影响。三种体系的比较表明，最重的Mo同位素中较大数量的单粒子激发是使势垒分布平滑的主要原因，使势垒分布失去了由耦合所预见的结构，只剩下了集体激发。对20Ne + 92,94,95mo体系进行了包括非集体激发耦合在内的理论计算，结果与实验势垒分布吻合较好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Physics A 物理-物理：核物理

CiteScore

3.60

自引率

7.10%

发文量

113

审稿时长

61 days

期刊介绍： Nuclear Physics A focuses on the domain of nuclear and hadronic physics and includes the following subsections: Nuclear Structure and Dynamics; Intermediate and High Energy Heavy Ion Physics; Hadronic Physics; Electromagnetic and Weak Interactions; Nuclear Astrophysics. The emphasis is on original research papers. A number of carefully selected and reviewed conference proceedings are published as an integral part of the journal.