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Muonium Lamb shift: theory update and experimental prospects [PDF]
EPJ Web of Conferences, 2022 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 measurement.
Janka Gianluca +2 more
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Summary of nuclear and particle astrophysics sessions
AIP Conference Proceedings, 1995 Astrophysics is gaining increased attention from the particle and nuclear physics communities, as budget cuts, delays, and cancellations limit opportunities for breakthrough research at accelerator laboratories. Observations of cosmic rays (protons and nuclei), gamma rays and neutrinos present a variety of puzzles whose eventual solution will shed ...
exaly +3 more sources
SAFIR-I: first NEMA NU 4-2008-based performance characterization
EJNMMI Physics, 2023 Background Small Animal Fast Insert for MRI detector I (SAFIR-I) is a novel Positron Emission Tomography insert for a $$7\,\hbox {T}$$ 7 T Bruker BioSpec 70/30 Ultra Shield Refrigerated Magnetic Resonance Imaging (MRI) system.
Pascal Bebié +5 more
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Measurement of the transition frequency from 2S 1/2, F = 0 to 2P 1/2, F = 1 states in Muonium
Nature Communications, 2022 Muonium is a hydrogen like bound system with a positive muon and an electron. Here the authors measure the Lamb shift and frequency of the transition from 2S1/2, F = 0 state to 2P1/2, F = 1 state in muonium atom and the hyperfine structure of the 2S ...
Gianluca Janka +11 more
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Journal of High Energy Physics, 2021 We report on an updated sensitivity for proton decay via p → ν ¯ $$ \overline{\nu} $$ K + at large, dual phase liquid argon time projection chambers (LAr TPCs).
C. Alt, B. Radics, A. Rubbia
doaj +1 more source
Thermometry of stored molecular ion beams
Scientific Reports, 2022 The radiative cooling of a stored, initially rotationally hot OH $$^{-}$$ - ion beam is probed by photodetachment using an electrostatic ion beam trap combined with an in-trap velocity map imaging spectrometer, providing direct measurement of the time ...
Abhishek Shahi +6 more
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muCool: a next step towards efficient muon beam compression
European Physical Journal C: Particles and Fields, 2019 A novel device to compress the phase space of a muon beam by a factor of $$10^{10}$$ 1010 with a $$10^{-3}$$ 10-3 efficiency is under development. A surface muon beam is stopped in a helium gas target consisting of several compression stages, wherein ...
I. Belosevic +17 more
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Particle astrophysics from the particle perspective [PDF]
AIP Conference Proceedings, 1994 Talk presented at the Lepton-Photon Symposium, 1993, some discussion of axions and anthropic principle revised, 34pp, SCIPP 93 ...
openaire +2 more sources
Scalar-tensor theories within Asymptotic Safety
Journal of High Energy Physics, 2021 Asymptotic Safety provides an elegant mechanism for obtaining a consistent high-energy completion of gravity and gravity-matter systems. Following the initial idea by Steven Weinberg, the construction builds on an interacting fixed point of the theories ...
Cristobal Laporte +3 more
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