49 citations · 174 across the 12 of their papers we have counts for
12 papers
Microwave Spectroscopy of the Muonium Fine Structure Interval
Philipp Blumer, Gianluca Janka, Svenja Geissmann +8
We report a microwave spectroscopy measurement of the muonium fine structure transition, yielding a transition frequency of , in ag…
Muonium fine structure: theory update, tests of Lorentz violation and experimental prospects
Philipp Blumer, Svenja Geissmann, Arnaldo J. Vargas +3
We review the status of the QED calculations for the muonium energy interval and provide the updated theoretical value of . Addi…
Pulsed CW laser for long-term spectroscopic measurements at high power in deep-UV
Nikita Zhadnov, Artem Golovizin, Irene Cortinovis +4
We present a novel technique for in-vacuum cavity-enhanced UV spectroscopy that allows nearly continuous measurements over several days, minimizing mirror degradation caused by hig…
Update of Muonium 1S-2S transition frequency
Irene Cortinovis, Ben Ohayon, Lucas de Sousa Borges +4
We present an updated value of the Muonium 1S-2S transition frequency, highlighting contributions from different QED corrections as well as the large uncertainty in the Dirac contr…
GermanIum Array for Non-destructive Testing (GIANT) setup for Muon Induced X-ray Emission (MIXE) at the Paul Scherrer Institute
Lars Gerchow, Sayani Biswas, Gianluca Janka +7
The usage of muonic X-rays to study elemental properties like nuclear radii ranges back to the seventies. This triggered the pioneering work at the Paul Scherrer Institute (PSI), d…
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…
Muonium Lamb shift: theory update and experimental prospects
Gianluca Janka, Ben Ohayon, Paolo Crivelli
We review the theory of the Lamb shift for muonium, provide an updated numerical value and present the prospects of the Mu-MASS collaboration at PSI to improve upon their recent me…
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…
Positron production using a 9 MeV electron linac for the GBAR experiment
M. Charlton, J. J. Choi, M. Chung +67
For the GBAR (Gravitational Behaviour of Antihydrogen at Rest) experiment at CERN's Antiproton Decelerator (AD) facility we have constructed a source of slow positrons, which uses…
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…
Multiple hit reconstruction in large area multiplexed detectors
B. Radics, G. Janka, D. A. Cooke +2
A novel approach is presented to unfold particle hit positions in tracking detectors with multiplexed readout representing an underdetermined system of linear equations. The method…