{"title":"A study of the fine-structure constant dependence of radiative capture in Halo-EFT","authors":"Ulf-G. Meißner, Bernard Ch. Metsch, Helen Meyer","doi":"10.1140/epja/s10050-024-01408-1","DOIUrl":null,"url":null,"abstract":"<div><p>We study the fine structure constant dependence of the rates of some selected radiative capture reactions within the framework of so-called Halo Effective Field Theory in order to assess the adequacy of some assumptions made on the Coulomb penetrability. We find that this dependence deviates from that implied by a parameterization of the cross sections of this effect via a simple penetration factor. Some features of this fine-structure dependence are discussed, in particular its potential impact on the abundances of the light elements in primordial nucleosynthesis.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":null,"pages":null},"PeriodicalIF":2.6000,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11458678/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The European Physical Journal A","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1140/epja/s10050-024-01408-1","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
We study the fine structure constant dependence of the rates of some selected radiative capture reactions within the framework of so-called Halo Effective Field Theory in order to assess the adequacy of some assumptions made on the Coulomb penetrability. We find that this dependence deviates from that implied by a parameterization of the cross sections of this effect via a simple penetration factor. Some features of this fine-structure dependence are discussed, in particular its potential impact on the abundances of the light elements in primordial nucleosynthesis.
我们在所谓的 "晕效应场理论"（Halo Effective Field Theory）框架内研究了一些选定的辐射俘获反应速率的精细结构常数依赖性，以评估库仑穿透性的一些假设是否充分。我们发现，这种依赖性偏离了通过简单的穿透系数对这种效应的截面进行参数化所隐含的依赖性。我们讨论了这种精细结构依赖性的一些特征，特别是它对原始核合成中轻元素丰度的潜在影响。
期刊介绍：
Hadron Physics
Hadron Structure
Hadron Spectroscopy
Hadronic and Electroweak Interactions of Hadrons
Nonperturbative Approaches to QCD
Phenomenological Approaches to Hadron Physics
Nuclear and Quark Matter
Heavy-Ion Collisions
Phase Diagram of the Strong Interaction
Hard Probes
Quark-Gluon Plasma and Hadronic Matter
Relativistic Transport and Hydrodynamics
Compact Stars
Nuclear Physics
Nuclear Structure and Reactions
Few-Body Systems
Radioactive Beams
Electroweak Interactions
Nuclear Astrophysics
Article Categories
Letters (Open Access)
Regular Articles
New Tools and Techniques
Reviews.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
