Zobrazeno 1 - 10
of 32
pro vyhledávání: '"J. D. Gillaspy"'
X-ray measurements in helium-like atoms increased discrepancy between experiment and theoretical QED
Autor:
C T Chantler, A T Payne, J D Gillaspy, L T Hudson, L F Smale, A Henins, J A Kimpton, E Takacs
Publikováno v:
New Journal of Physics, Vol 16, Iss 12, p 123037 (2014)
A recent 15 parts per million (ppm) experiment on muonic hydrogen ( ${{{\rm p}}^{+}}{{\mu }^{-}}$ ) found a major discrepancy with quantum electrodynamics (QED) and independent nuclear size determinations. Here we find a significant discrepancy in a
Externí odkaz:
https://doaj.org/article/c309718c41a440b29bcab2aa610796f9
Autor:
Amy Gall, Alexander Borovik, J. D. Gillaspy, Joan Dreiling, Endre Takacs, Roshani Silwal, Ethan Kilgore, Yuri Ralchenko, Adam R. Foster, Marco Ajello
Publikováno v:
Astrophys J
Motivated by possible atomic origins of the unidentified emission line detected at 3.55 keV to 3.57 keV in a stacked spectrum of galaxy clusters (Bulbul et al. 2014), an electron beam ion trap (EBIT) was used to investigate the resonant dielectronic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81c88ace2432d6304f39274505e32ef0
https://doi.org/10.3847/1538-4357/ab0177
https://doi.org/10.3847/1538-4357/ab0177
Publikováno v:
American Journal of Physics. 80:561-577
This Resource Letter provides a guide to the literature on the spin-statistics connection and related issues such as the Pauli exclusion principle and particle indistinguishability. Journal articles and books are cited for the following topics: basic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee93156f53066c64069b85109d2d0455
https://doi.org/10.1119/1.4704899
https://doi.org/10.1119/1.4704899
Autor:
Anthony Kavanagh, David G. Hirst, Hirofumi Watanabe, Shunsuke Ohtani, J D Gillaspy, Marcus H. Mendenhall, Nobuyuki Nakamura, Frederick Currell
Publikováno v:
Journal of Physics: Conference Series. 58:439-442
The possibility of using x-radiation from bare and hydrogen-like highly charged ions as a driver for a proposed form of cancer therapy is discussed. This proposed form of therapy, called resonant combination therapy, benefits from a very high contras
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b640777009ae5fba060a14123393072
https://doi.org/10.1088/1742-6596/58/1/101
https://doi.org/10.1088/1742-6596/58/1/101
Autor:
C T, Chantler, M N, Kinnane, J D, Gillaspy, L T, Hudson, A T, Payne, L F, Smale, A, Henins, J M, Pomeroy, J N, Tan, J A, Kimpton, E, Takacs, K, Makonyi
Publikováno v:
Physical review letters. 109(15)
We report a new test of quantum electrodynamics (QED) for the w (1s2p(1)P(1)→1s(2)(1)S(0)) x-ray resonance line transition energy in heliumlike titanium. This measurement is one of few sensitive to two-electron QED contributions. Systematic errors
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::8b4f19715612b5756dd92528ed002468
https://pubmed.ncbi.nlm.nih.gov/25167322
https://pubmed.ncbi.nlm.nih.gov/25167322
Autor:
J. D. Gillaspy
Publikováno v:
AIP Conference Proceedings.
Eight papers published by the National Institute of Standards and Technology (NIST) EBIT spectroscopy team and collaborators from mid-2009 to mid-2011 are summarized. Previous discussions of the D-lines in Na-like ions and the Lyman-alpha lines in H-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3b3b35f33cab76f40a89bb85bf06716
https://doi.org/10.1063/1.4707862
https://doi.org/10.1063/1.4707862
Autor:
Craig J, Sansonetti, C E, Simien, J D, Gillaspy, Joseph N, Tan, Samuel M, Brewer, Roger C, Brown, Saijun, Wu, J V, Porto
Publikováno v:
Physical review letters. 107(2)
Optical frequencies of the D lines of (6,7)Li were measured with a relative accuracy of 5 × 10⁻¹¹ using an optical comb synthesizer. Quantum interference in the laser induced fluorescence for the partially resolved D2 lines was found to produce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::521ab40558c1cb23ad4367afdea49fd6
https://pubmed.ncbi.nlm.nih.gov/21797599
https://pubmed.ncbi.nlm.nih.gov/21797599
Autor:
K Fahy, A. Aguilar, G O'Sullivan, J. D. Gillaspy, Joshua M. Pomeroy, Joseph N. Tan, Emma Sokell
Publikováno v:
Physical Review A. 75
Extreme-ultraviolet spectra of xenon ions have been recorded in the 4.5 to $20\phantom{\rule{0.3em}{0ex}}\mathrm{nm}$ wavelength region using an electron beam ion trap and a flat field spectrometer. The electron beam energy was varied from $180\phant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2300a413b54abb3b1d5ed34f97401093
https://doi.org/10.1103/physreva.75.032520
https://doi.org/10.1103/physreva.75.032520
Autor:
Christopher J. Verzani, H. Tawara, Karoly Tökesi, Timea Hohl, J. D. Gillaspy, Jozsef Palinkas, Endre Takacs
This paper describes our finding that in slow collisions of Kr 27+ projectiles with neutral Ne, Ar and O 2 atoms/molecules there is a significant target dependence in the spectra of X-rays originating from electron capture. We also present results of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::422eeb223c21031e460ba284351d8be9
Autor:
J. D. Gillaspy, Nancy Brickhouse, J. M. Pomeroy, K. Kirby, G. X. Chen, J. M. Laming, Joseph N. Tan, Eric H. Silver
Publikováno v:
ResearcherID
The X‐ray telescopes and spectrometers flown on Chandra and XMM‐Newton are returning exciting new data from a wide variety of cosmic sources such as stellar coronae, supernova remnants, galaxies, clusters of galaxies, active galactic nuclei and X
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::affad6f7c9d4081bced37b8eba1e6ccd
https://doi.org/10.1063/1.2768835
https://doi.org/10.1063/1.2768835