Zobrazeno 1 - 10
of 85
pro vyhledávání: '"E A Hessels"'
Publikováno v:
Atoms, Vol 6, Iss 1, p 3 (2018)
We propose a very sensitive method for measuring the electric dipole moment of the electron using polar molecules embedded in a cryogenic solid matrix of inert-gas atoms. The polar molecules can be oriented in the z ^ -direction by an applied electri
Externí odkaz:
https://doaj.org/article/2c56ddb535a94775a6f742785ef9a126
Autor:
D. Grzonka, E. Tardiff, Nathan Jones, E. Nottet, Cole Meisenhelder, G. Khatri, D. Martinez Zambrano, X. Fan, Gerald Gabrielse, E. A. Hessels, W.S. Kolthammer, C. D. Hamley, E. Novitski, Tharon Morrison, C. H. Storry
Publikováno v:
Nuclear instruments & methods in physics research / A 977, 164279-(2020). doi:10.1016/j.nima.2020.164279
High-accuracy spectroscopic comparisons of trapped antihydrogen atoms ($\overline{\text{H}}$) and hydrogen atoms ($\text{H}$) promise to stringently test the fundamental CPT symmetry invariance of the standard model of particle physics. ATRAP's neste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3b959287592a12cdb61bf376cad5650
Publikováno v:
Physical Review Letters. 121
For decades, improved theory and experiment of the n=2 ^{3}P fine structure of helium have allowed for increasingly precise tests of quantum electrodynamics, determinations of the fine-structure constant α, and limitations on possible beyond-the-sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abfdb4206e9640bd16b11f5f4df6d28c
https://doi.org/10.1103/physrevlett.121.143002
https://doi.org/10.1103/physrevlett.121.143002
Publikováno v:
Physical Review A. 98
Because molecules can have their orientation locked when embedded into a solid rare-gas matrix, their hyperfine structure is strongly perturbed relative to the freely rotating molecule. The addition of an electric field further perturbs the structure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17556a387c357ba401ace31ae2a3bdd1
https://doi.org/10.1103/physreva.98.032513
https://doi.org/10.1103/physreva.98.032513
Publikováno v:
Science (New York, N.Y.). 365(6457)
Unraveling the proton puzzle The discrepancy between the proton size deduced from the Lamb shift in muonic hydrogen and the average, textbook value based on regular (electronic) hydrogen has puzzled physicists for nearly a decade. One possible resolu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2004a0f89c8ed3d3d264cb9e68a6670
https://pubmed.ncbi.nlm.nih.gov/31695215
https://pubmed.ncbi.nlm.nih.gov/31695215
Publikováno v:
Physical review letters. 121(14)
For decades, improved theory and experiment of the n=2 ^{3}P fine structure of helium have allowed for increasingly precise tests of quantum electrodynamics, determinations of the fine-structure constant α, and limitations on possible beyond-the-sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::4ec6e0fba7d362cd2c0467043914fae4
https://pubmed.ncbi.nlm.nih.gov/30339449
https://pubmed.ncbi.nlm.nih.gov/30339449
We evaluate a number of systematic effects that are important for an experimental microwave measurement of the $n=2$ $S$-to-$P$ intervals in atomic hydrogen. The analysis is important both for reevaluating the best existing measurement [S. R. Lundeen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f3e692fd63f5cd2cff024fa082fb963
http://arxiv.org/abs/1805.11602
http://arxiv.org/abs/1805.11602
Autor:
C. H. Storry, E. Nottet, E. A. Hessels, E. Tardiff, Cole Meisenhelder, D. Grzonka, N. Jones, Marcin Zieliński, Gerald Gabrielse, Dylan C. Yost, Samuel Ronald, D. Martinez Zambrano, G. Khatri, Bartosz Głowacz, T. D. G. Skinner, S. A. Lee, C. D. Hamley, Cory Rasor, Tharon Morrison
We present a Lyman-α laser developed for cooling trapped antihydrogen. The system is based on a pulsed Ti:sapphire laser operating at 729 nm that is frequency doubled using an LBO crystal and then frequency tripled in a Kr/Ar gas cell. After frequen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c847fa89fc1e64fe1235a52b53ffc672
https://ruj.uj.edu.pl/xmlui/handle/item/56446
https://ruj.uj.edu.pl/xmlui/handle/item/56446
Publikováno v:
Atoms, Vol 6, Iss 1, p 3 (2018)
Atoms; Volume 6; Issue 1; Pages: 3
Atoms; Volume 6; Issue 1; Pages: 3
We propose a very sensitive method for measuring the electric dipole moment of the electron using polar molecules embedded in a cryogenic solid matrix of inert-gas atoms. The polar molecules can be oriented in the $\hat{\rm{z}}$ direction by an appli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5c6639a7efc6880207f45cd95bbe88d
We determine the root-mean-square proton charge radius, $R_{\rm p}$, from a fit to low-$Q^2$ electron-proton elastic scattering cross section data with the higher moments fixed (within uncertainties) to the values predicted by chiral perturbation the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16ad4672042773af627e583018aeaa86
http://arxiv.org/abs/1610.09760
http://arxiv.org/abs/1610.09760