Proceedings of International Conference on Precision Physics and Fundamental Physical Constants

Generating Sub-Millidegree Thermal Stability over Large Volumes for Precision Experiments 在精密实验中大体积上产生亚毫度热稳定性

Proceedings of International Conference on Precision Physics and Fundamental Physical Constants — PoS(FFK2019) Pub Date : 2020-01-10 DOI: 10.22323/1.353.0059

N. Krishnan, S. M. Pereira, A. Vaidyanathan

引用次数: 2

Study of the valence electronic density distribution in Z=112-120 atoms Z=112-120原子价电子密度分布的研究

Proceedings of International Conference on Precision Physics and Fundamental Physical Constants — PoS(FFK2019) Pub Date : 2019-12-13 DOI: 10.22323/1.353.0036

M. Y. Kaygorodov, Y. Kozhedub, I. Tupitsyn, V. Shabaev

引用次数: 2

Quadropole transitions of the hydrogen molecular ion HD+ 氢分子离子HD+的四极跃迁

Proceedings of International Conference on Precision Physics and Fundamental Physical Constants — PoS(FFK2019) Pub Date : 2019-11-04 DOI: 10.22323/1.353.0058

A. K. Bekbaev, D. T. Aznabayev, V. Korobov

引用次数: 0

Correlation trends in the nuclear anapole moment interaction of the Be atom in BeCl BeCl中Be原子核模拟矩相互作用的相关趋势

Proceedings of International Conference on Precision Physics and Fundamental Physical Constants — PoS(FFK2019) Pub Date : 2019-10-28 DOI: 10.22323/1.353.0057

Y. Hao, M. Iliaš, A. Borschevsky

{"title":"Correlation trends in the nuclear anapole moment interaction of the Be atom in BeCl","authors":"Y. Hao, M. Iliaš, A. Borschevsky","doi":"10.22323/1.353.0057","DOIUrl":"https://doi.org/10.22323/1.353.0057","url":null,"abstract":"The parity-violating nuclear anapole moment effect can be used as a tool to test nuclear models and gain deep understanding of nuclear structure. Diatomic molecules such as BeCl are considered as good candidates in search for the nuclear anapole moment effect, because such molecules have close-lying molecular levels with opposite parity, where degeneracy can very easily occur in external fields, leading to a dramatic amplification of the tiny parity-violating effect. In order to interpret the results of precision measurements effectively, a parity-violating interaction parameter WA, which depends on molecular structure, needs to be calculated with high-accuracy. In this work, the calculations of the WA parameter for the Be atom in BeCl are carried out with various electron correlation approaches such as the open-shell single determinant average-ofconfiguration Dirac-Hartree-Fock (DHF), the relativistic density functional theory (DFT), the second-order Møller-Plesset method (MP2), the relativistic coupled cluster method with single, double, and perturbative triple excitation, namely CCSD and CCSD(T). The influence of electron correlations on the calculated WA parameter is investigated and discussed.","PeriodicalId":416768,"journal":{"name":"Proceedings of International Conference on Precision Physics and Fundamental Physical Constants — PoS(FFK2019)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114402394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Remeasurement of the Eötvös experiment - status and first results 重新测量Eötvös实验状态和初步结果

Proceedings of International Conference on Precision Physics and Fundamental Physical Constants — PoS(FFK2019) Pub Date : 2019-10-19 DOI: 10.22323/1.353.0042

G. Tóth, L. Völgyesi, G. Szondy, Gábor Péter, B. Kiss, G. G. Barnaföldi, László Deák, Csaba Égeto, E. Fenyvesi, Gyula Gróf, L. Somlai, P. Harangozó, P. Lévai, P. Ván

引用次数: 2

Calculation of higher order corrections to positronium energy levels 正电子能级高阶修正的计算

Proceedings of International Conference on Precision Physics and Fundamental Physical Constants — PoS(FFK2019) Pub Date : 2019-10-15 DOI: 10.22323/1.353.0004

G. Adkins, B. Akers, Faisal Alam, Lam M. Tran, Xuan Zhang

引用次数: 4

Paving the way for fundamental physics tests with singly-ionized helium 为用单电离氦进行基础物理测试铺平了道路

Proceedings of International Conference on Precision Physics and Fundamental Physical Constants — PoS(FFK2019) Pub Date : 2019-10-15 DOI: 10.22323/1.353.0049

J. Krauth, L. S. Dreissen, C. Roth, E. L. Grundeman, M. Collombon, M. Favier, K. Eikema

引用次数: 6

Nonrelativistic energy levels of the helium atom 氦原子的非相对论能级

Proceedings of International Conference on Precision Physics and Fundamental Physical Constants — PoS(FFK2019) Pub Date : 2019-10-15 DOI: 10.22323/1.353.0060

D. T. Aznabayev, A. K. Bekbaev, V. Korobov

引用次数: 1

QED with heavy ions: on the way from strong to supercritical fields 重离子QED:从强场到超临界场

Proceedings of International Conference on Precision Physics and Fundamental Physical Constants — PoS(FFK2019) Pub Date : 2019-10-03 DOI: 10.22323/1.353.0052

V. Shabaev, A. I. Bondarev, D. Glazov, Y. Kozhedub, I. A. Maltsev, A. Malyshev, R. V. Popov, D. Tumakov, I. Tupitsyn

{"title":"QED with heavy ions: on the way from strong to supercritical fields","authors":"V. Shabaev, A. I. Bondarev, D. Glazov, Y. Kozhedub, I. A. Maltsev, A. Malyshev, R. V. Popov, D. Tumakov, I. Tupitsyn","doi":"10.22323/1.353.0052","DOIUrl":"https://doi.org/10.22323/1.353.0052","url":null,"abstract":"The current status of tests of quantum electrodynamics with heavy ions is reviewed. The theoretical predictions for the Lamb shift and the hyperfine splitting in heavy ions are compared with available experimental data. Recent achievements and future prospects in studies of the $g$ factor with highly charged ions are also reported. These studies can provide precise determination of the fundamental constants and tests of QED within and beyond the Furry picture at the strong-coupling regime. Theoretical calculations of the electron-positron pair creation probabilities in low-energy heavy-ion collisions are also considered. Special attention is paid to tests of QED in supercritical-field regime, which can be accessed in slow collisions of two bare nuclei with the total charge number larger than the critical value, $Z_{rm crit} approx 173$. In the supercritical field, the initially neutral vacuum can spontaneously decay into the charged vacuum and two positrons. It is demonstrated that this fundamental phenomenon can be observed via impact-sensitive measurements of the pair-production probabilities.","PeriodicalId":416768,"journal":{"name":"Proceedings of International Conference on Precision Physics and Fundamental Physical Constants — PoS(FFK2019)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114590146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

The Eötvös Paradox: The Enduring Significance of Eötvös' Most Famous Experiment Eötvös悖论:Eötvös最著名实验的持久意义

Proceedings of International Conference on Precision Physics and Fundamental Physical Constants — PoS(FFK2019) Pub Date : 2019-01-30 DOI: 10.22323/1.353.0039

E. Fischbach, D. Krause

引用次数: 2

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