I. Belošević
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View article: Phase space compression of a positive muon beam in two spatial dimensions
Phase space compression of a positive muon beam in two spatial dimensions Open
We present the first demonstration of simultaneous phase space compression in two spatial dimensions of a positive muon beam, the first stage of the novel high-brightness muon beam under development by the muCool collaboration at the Paul …
View article: Phase space compression of a positive muon beam in two spatial dimensions
Phase space compression of a positive muon beam in two spatial dimensions Open
We present the first demonstration of simultaneous phase space compression in two spatial dimensions of a positive muon beam, the first stage of the novel high-brightness muon beam under development by the muCool collaboration at the Paul …
View article: Phase space compression of a positive muon beam in two spatial dimensions
Phase space compression of a positive muon beam in two spatial dimensions Open
We present the first demonstration of simultaneous phase space compression in two spatial dimensions of a positive muon beam, the first stage of the novel high-brightness muon beam under development by the muCool collaboration at the Paul …
View article: Ionization potential of radium monofluoride
Ionization potential of radium monofluoride Open
The ionization potential (IP) of radium monofluoride (RaF) was measured to be 4.969(2)[10] eV, revealing a relativistic enhancement in the series of alkaline earth monofluorides. The results are in agreement with a relativistic coupled-clu…
View article: Electroweak Nuclear Properties from Single Molecular Ions in a Penning Trap
Electroweak Nuclear Properties from Single Molecular Ions in a Penning Trap Open
We present a novel technique to probe electroweak nuclear properties by measuring parity violation (PV) in single molecular ions in a Penning trap. The trap's strong magnetic field Zeeman shifts opposite-parity rotational and hyperfine mol…
View article: Precision spectroscopy and laser cooling scheme of a radium-containing molecule
Precision spectroscopy and laser cooling scheme of a radium-containing molecule Open
We are attaching the processed spectra used for the analysis in our paper, "Precision spectroscopy and laser cooling scheme of a radium-containing molecule", together with an example of a Python script used to fit individual peaks in these…
View article: Towards muon cooling at the Paul Scherrer Institute
Towards muon cooling at the Paul Scherrer Institute Open
At the Paul Scherrer Institute, the muCool device is being developed to compress the 6D phase space of a standard μ+ beam by a factor of 109 with up to 10-4 efficiency. Efficient compression has been observed using a cryogenic helium gas t…
View article: Observation of the distribution of nuclear magnetization in a molecule
Observation of the distribution of nuclear magnetization in a molecule Open
Rapid progress in the experimental control and interrogation of molecules, combined with developments in precise calculations of their structure, are enabling new opportunities in the investigation of nuclear and particle physics phenomena…
View article: Electroweak Nuclear Properties from Single Molecular Ions in a Penning Trap
Electroweak Nuclear Properties from Single Molecular Ions in a Penning Trap Open
We present a novel technique to probe electroweak nuclear properties by measuring parity violation (PV) in single molecular ions in a Penning trap. The trap's strong magnetic field Zeeman shifts opposite-parity rotational and hyperfine mol…
View article: Pinning down electron correlations in RaF via spectroscopy of excited states and high-accuracy relativistic quantum chemistry
Pinning down electron correlations in RaF via spectroscopy of excited states and high-accuracy relativistic quantum chemistry Open
We report the spectroscopy of the 14 lowest excited electronic states in the radioactive molecule radium monofluoride (RaF). The observed excitation energies are compared with fully relativistic state-of-the-art Fock-space coupled cluster …
View article: Precision spectroscopy and laser cooling scheme of a radium-containing molecule
Precision spectroscopy and laser cooling scheme of a radium-containing molecule Open
Molecules containing heavy, radioactive nuclei are predicted to be extremely sensitive to violations of the fundamental symmetries of nature. Radium monofluoride molecules are of particular interest, as the nuclear octupole deformation of …
View article: Simulation studies of a 30-keV MR-ToF device for highly sensitive collinear laser spectroscopy
Simulation studies of a 30-keV MR-ToF device for highly sensitive collinear laser spectroscopy Open
The Multi Ion Reflection Apparatus for Collinear Laser Spectroscopy (MIRACLS) seeks to extend the reach of high-resolution collinear laser spectroscopy (CLS) to more exotic radionuclides. In this novel technique, ion bunches of short-lived…
View article: Demonstration of Muon-Beam Transverse Phase-Space Compression
Demonstration of Muon-Beam Transverse Phase-Space Compression Open
We demonstrate efficient transverse compression of a 12.5 MeV/c muon beam stopped in a helium gas target featuring a vertical density gradient and crossed electric and magnetic fields. The muon stop distribution extending vertically over 1…
View article: Development of next generation muon beams at the Paul Scherrer Institute
Development of next generation muon beams at the Paul Scherrer Institute Open
The Paul Scherrer Institute (PSI) provides the world's highest intensity muon beam of Ó(108)μ+/s at 28MeV/c. The HiMB project aims to improve this rate by two orders of magnitude. Meanwhile, the muCool collaboration is developing a device …
View article: Characterization of Cryogenic SiPM Down to 6.5 K
Characterization of Cryogenic SiPM Down to 6.5 K Open
SiPM operation at very low temperatures has the potential to improve detector systems for experiments at cryogenic temperatures. We characterized electrical and optical properties of a commercially available cryogenic SiPM over a temperatu…
View article: muCool: a next step towards efficient muon beam compression
muCool: a next step towards efficient muon beam compression Open
A novel device to compress the phase space of a muon beam by a factor of 1010 with a 10−3 efficiency is under development. A surface muon beam is stopped in a helium gas target consisting of several compression stages, wherein strong elect…
View article: Development of a low-energy, high-brightness $μ^+$ beam line
Development of a low-energy, high-brightness $μ^+$ beam line Open
We are developing a beam line which compresses the phase space of a standard surface $μ^+$ beam by 10 orders of magnitude with an efficiency of $10^{-3}$. Phase space compression occurs in a He gas target and consists of three consecutive …