Zobrazeno 1 - 10 of 647 pro vyhledávání: '"M G Kozlov"'
4
Precision Calculation of Hyperfine Constants for Extracting Nuclear Moments of ^{229}Th
Autor: S G, Porsev, M S, Safronova, M G, Kozlov
Publikováno v: Physical review letters. 127(25)
Determination of nuclear moments for many nuclei relies on the computation of hyperfine constants, with theoretical uncertainties directly affecting the resulting uncertainties of the nuclear moments. In this work, we improve the precision of such a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::fbc954d9d7f2750730accce004ec8f40
https://pubmed.ncbi.nlm.nih.gov/35029415
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5
Predicting quasibound states of negative ions: La− as a test case
Autor: Charles Cheung, M. G. Kozlov, S. E. Spielman, Marianna Safronova, N. D. Gibson, C. W. Walter
Publikováno v: Physical Review A. 103
We demonstrated the accurate prediction of a quasibound spectrum of a negative ion using a high-precision theoretical approach. We used ${\mathrm{La}}^{\ensuremath{-}}$ as a test case due to a recent experiment that measured energies of 11 resonances
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::99c150bd19dcda877335aa728aa0447c
https://doi.org/10.1103/physreva.103.022819
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6
Constraints on the electron-to-proton mass ratio variation at the epoch of reionization
Autor: Sergei A. Levshakov, M G Kozlov, I I Agafonova
Far infrared fine-structure transitions of CI and CII and rotational transitions of CO are used to probe hypothetical variations of the electron-to-proton mass ratio mu = m_e/m_p at the epoch of reionization (z > 6). A constraint on Delta mu/mu = (mu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5762f6271bdeb114827c9146768117a7
http://arxiv.org/abs/2008.11143
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8
Fine-structure transitions as a tool for studying variation of α at high redshifts
Autor: S. A. Levshakov, M. G. Kozlov
Publikováno v: Monthly Notices of the Royal Astronomical Society: Letters. 469:L16-L19
Star-forming galaxies at high redshifts are the ideal targets to probe the hypothetical variation of the fine-structure constant alpha over cosmological time scales. We propose a modification of the alkali doublets method which allows us to search fo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::310f8e1f84fbead0c0be7a40a9740c9e
https://doi.org/10.1093/mnrasl/slx049
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9
Regge vertex for quark production in the central rapidity region in the next-to-leading order
Autor: A. V. Reznichenko, M. G. Kozlov
Publikováno v: Physics of Atomic Nuclei. 79:271-274
The effective vertex for quark production in the interaction of a Reggeized quark and a Reggeized gluon is calculated in the next-to-leading order (NLO). The resulting vertex is the missing component of the NLO multi-Regge amplitude featuring quark a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0dcd10f72736e04db6c159576783b189
https://doi.org/10.1134/s1063778816010117
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10
Nuclear Charge Radii of ^{229}Th from Isotope and Isomer Shifts
Autor: M S, Safronova, S G, Porsev, M G, Kozlov, J, Thielking, M V, Okhapkin, P, Głowacki, D M, Meier, E, Peik
Publikováno v: Physical review letters. 121(21)
The isotope ^{229}Th is unique in that it possesses an isomeric state of only a few electron volts above the ground state, suitable for nuclear laser excitation. An optical clock based on this transition is expected to be a very sensitive probe for v
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::1f79c4166c5ed644ddb63a99ec54e5ac
https://pubmed.ncbi.nlm.nih.gov/30517806
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