92 citations · 418 across the 24 of their papers we have counts for
24 papers
Hyperfine structure and isotope shifts of the transition in atomic zinc
David Röser, J. Eduardo Padilla-Castillo, Ben Ohayon +5
We report absolute frequency, isotope shift, radiative lifetime and hyperfine structure measurements of the (213.8 nm) transition in Zn I using a cryog…
All-optical Differential Radii in Zinc
B. K. Sahoo, B. Ohayon
We conduct high-accuracy calculations of isotope shift (IS) factors of the states involving the and lines in Zn II. Together with a global fit to the available optical…
Production of antihydrogen atoms by 6 keV antiprotons through a positronium cloud
P. Adrich, P. Blumer, G. Caratsch +61
We report on the first production of an antihydrogen beam by charge exchange of 6.1 keV antiprotons with a cloud of positronium in the GBAR experiment at CERN. The antiproton beam…
Muonic-Atom Spectroscopy and Impact on Nuclear Structure and Precision QED Theory
Aldo Antognini, Sonia Bacca, Andreas Fleischmann +10
Recent progress in laser and x-ray spectroscopy of muonic atoms offers promising long-term possibilities at the intersection of atomic, nuclear and particle physics. In muonic hydr…
High-resolution isotope-shift spectroscopy of Cd I
Simon Hofsäss, J. Eduardo Padilla-Castillo, Sid C. Wright +6
We present absolute frequency measurements of the (nm) and (nm) transitions…
Isotope Shifts in Cadmium as a Sensitive Probe for Physics Beyond the Standard Model
B. Ohayon, S. Hofsäss, J. E. Padilla-Castillo +5
Isotope shifts (ISs) in atomic energy levels are sensitive probes of nuclear structure and new physics beyond the Standard Model. We present an analysis of the ISs of the cadmium a…
Measurement of the == transition in Muonium
G. Janka, B. Ohayon, I. Cortinovis +9
Muons are puzzling physicists since their discovery when they were first thought to be the meson predicted by Yukawa to mediate the strong force. The recent results at Fermilab on…
Positron accumulation in the GBAR experiment
P. Blumer, M. Charlton, M. Chung +67
We present a description of the GBAR positron (e+) trapping apparatus, which consists of a three stage Buffer Gas Trap (BGT) followed by a High Field Penning Trap (HFT), and discus…
Precision measurement of the Lamb shift in Muonium
B. Ohayon, G. Janka, I. Cortinovis +10
We report a new measurement of the Lamb shift in Muonium using microwave spectroscopy. Our result of MHz comprises an order of…
Nuclear charge radii of Na isotopes: A tale of two theories
B. Ohayon, R. F. Garcia Ruiz, Z. H. Sun +3
The accuracy of atomic theory calculations limits the extraction of nuclear charge radii from isotope shift measurements of odd-proton nuclei. For Na isotopes, though precise spect…
Constraining new physics with a novel measurement of the Ne -decay branching ratio
Yonatan Mishnayot, Ayala Glick-Magid, Hitesh Rahangdale +20
Measurements of the beta-neutrino correlation coefficient (a) in nuclear beta decay, together with the Fierz interference term (b), provide a robust test for the existen…
Towards an independent determination of muon g-2 from muonium spectroscopy
Cédric Delaunay, Ben Ohayon, Yotam Soreq
We show that muonium spectroscopy in the coming years can reach a precision high enough to determine the anomalous magnetic moment of the muon below one part per million (ppm). Suc…
Stable High Power deep-UV Enhancement Cavity in Ultra High Vacuum with Fluoride Coatings
Zakary Burkley, Lucas de Sousa Borges, Ben Ohayon +3
We demonstrate the superior performance of fluoride coated versus oxide coated mirrors in long term vacuum operation of a high power deep-ultraviolet enhancement cavity. In high va…
Benchmarking Many-body Approaches for the Determination of Isotope Shift Constants: Application to the Li, Be and Ar Isoelectronic Systems
B. K. Sahoo, B. Ohayon
We have applied relativistic coupled-cluster (RCC) theory to determine the isotope shift (IS) constants of the first eight low-lying states of the Li, Be and Ar isoelec…
Ne Production at SARAF-I
Yonatan Mishnayot, Hitesh Rahangdale, Ben Ohayon +9
In this article, we present a measurement of flow rate, yield and effusion time of a Ne production and transport system. We used an accelerator-driven Li(d,n) neutron source…
Intense beam of metastable Muonium
G. Janka, B. Ohayon, Z. Burkley +10
Precision spectroscopy of the Muonium Lamb shift and fine structure requires a robust source of 2S Muonium. To date, the beam-foil technique is the only demonstrated method for cre…
A decay microscope for trapped neon isotopes
Ben Ohayon, Hitesh Rahangdale, Elad Parnes +3
We review the design, simulation, and tests, of a detection system for measuring the energy distribution of daughter nuclei recoiling from the beta-decay of laser trapped neon isot…
Isotope shifts in Ne -- Precision measurements and global analysis in the framework of intermediate coupling
B. Ohayon, H. Rahangdale, A. J. Geddes +2
We report new precision measurements of the Ne--Ne isotope shift for several transitions, as well as state-of-the-art, \textit{ab initio} field-shift calculations. Ou…
Weak interaction studies at SARAF
Ben Ohayon, Joel Chocron, Tsviki Hirsh +8
We review the current status of the radioisotopes program at the Soreq Applied Research Accelerator Facility (SARAF), where we utilize an electrostatic-ion-beam trap and a magneto-…
Imaging recoil ions from optical collisions between ultracold, metastable neon isotopes
B. Ohayon, H. Rahangdale, J. Chocron +3
We present an experimental scheme which combines the well established method of velocity-mapimaging, with a cold trapped metastable neon target. The device is used for obtaining th…
The Soreq Applied Research Accelerator Facility (SARAF) - Overview, Research Programs and Future Plans
Israel Mardor, Ofer Aviv, Marilena Avrigeanu +26
The Soreq Applied Research Accelerator Facility (SARAF) is under construction in the Soreq Nuclear Research Center at Yavne, Israel. When completed at the beginning of the next dec…
Measurement of the Ne P-D transition isotope shift using a single, phase modulated laser beam
Ben Ohayon, Gal Gumpel, Guy Ron
We develop a simple technique to accurately measure frequency differences between far lying resonances in a spectroscopy signal using a single laser. This technique was used to mea…
Characterization of a metastable neon beam extracted from a commercial RF ion source
B. Ohayon, E. Wåhlin, G. Ron
We have used a commercial RF ion-source to extract a beam of metastable neon atoms. The source was easily incorporated into our existing system and was operative within a day of in…
New Approaches in designing a Zeeman-Slower
Ben Ohayon, Guy Ron
We present two new approaches for the design of a Zeeman-Slower, which rely on optimal compliance with the adiabatic following condition and are applicable to a wide variety of sys…