P. Yzombard

Proposal for a cryogenic source of atomic tritium for neutrino-mass measurements and precision spectroscopy

Aleksei Semakin, J. Ahokas, T. Kiilerich, Sergey Vasiliev et autres

We propose a concept for a cryogenic source of atomic tritium at sub-Kelvin temperatures and energies suitable for magnetic trapping. The source is based on the dissociation of solid molecular T 2 films below 1 K by electrons from a pulsed rf …

fi, fr, at, ca, ch, de (code pays fourni par la source)

Gravitational and other shifts of whispering-gallery and gravitational state interference patterns of light neutral particles

Valery Nesvizhevsky, Jason A. Pioquinto, Katharina Schreiner, Stefan Baessler et autres

We discuss the interference patterns of gravitational and whispering gallery quantum states that can be observed with neutrons, atoms, antiatoms, muonium (Mu), positronium (Ps), and other light neutral particles. A gravitational shift of interference patterns of neutron gravitational and whispering-gallery states can …

Record accumulation of antiprotons in a Penning–Malmberg trap and their preparation for improved production of antihydrogen beams

Byungchan Lee, B. Kim, P. Adrich, I. Belošević et autres

Abstract CERN’s antiproton decelerator/ELENA ‘antimatter factory’ - unique worldwide—serves several experiments, all of which use electromagnetic traps to accumulate antiprotons for fundamental science. The GBAR experiment employs a charge-exchange reaction between an antiproton beam and a positronium cloud to produce antihydrogen for …

kr, pl, fr, ch, se, jp, gb (code pays fourni par la source)

Transition-Edge Sensor Spectrometer for Precision Spectroscopy of Antiprotonic Atoms

Kelsey M. Morgan, Toshiyuki Azuma, Gonçalo Baptista, Daniel Becker et autres

PAX (antiProtonic Atom X-ray spectroscopy) is an experiment that aims to test strong-field quantum elec trodynamics (QED) effects by performing high-precision X ray spectroscopy of antiprotonic atoms. PAX will use a low energy antiproton beam provided by the Extra Low Energy Antiproton …

us, jp, fr, ch, il, pt, gb (code pays fourni par la source)

Cryogenic source of atomic tritium for neutrino-mass measurements and precision spectroscopy

Aleksei Semakin, Janne Ahokas, Tom Kiilerich, Sergey Vasiliev et autres

We propose a concept for a cryogenic source of atomic tritium at sub-Kelvin temperatures and energies suitable for magnetic trapping. The source is based on the dissociation of solid molecular T2 films below 1 K by electrons from a pulsed RF discharge, …

News from the GBAR experiment: Improved positron accumulation in a buffer gas trap with a silicon carbide remoderator

Laszlo Liszkay, P. Adrich, I. Belošević, P.J. Blumer et autres

Abstract The aim of the GBAR experiment is to measure the gravitational acceleration of antihydrogen by observing the free fall of ultracold anti-atoms. The experiment is installed at CERN’s Antiproton Decelerator/ELENA facility. Positrons are produced by a low energy (9 MeV) linear …

fr (code pays fourni par la source)

Towards Precision Spectroscopy of Antiprotonic Atoms for Probing Strong-field QED

Gonçalo Baptista, Shikha Rathi, Michael Roosa, Quentin Senetaire et autres

PAX (antiProtonic Atom X-ray spectroscopy) is a new experiment with the aim to test strong-field quantum electrodynamics (QED) effects by performing high-precision x-ray spectroscopy of antiprotonic atoms. By utilizing advanced microcalorimeter detection techniques and a low-energy antiproton beam provided by the ELENA …

Cold source of atomic hydrogen for loading large magnetic traps

Aleksei Semakin, Janne Ahokas, Otto Hanski, Slava Dvornichenko et autres

Abstract We present a design and performance tests of an intense source of cold hydrogen atoms for loading large magnetic traps. Our source is based on a cryogenic dissociator of molecular hydrogen at 0.6 K followed by a series of thermal accommodators …

fi, fr, at, ch (code pays fourni par la source)

Towards Precision Spectroscopy of Antiprotonic Atoms for Probing Strong-field QED

Gonçalo Baptista, Shikha Rathi, Michael Roosa, Quentin Senetaire et autres

PAX (antiProtonic Atom X-ray spectroscopy) is a new experiment with the aim to test strong-field quantum electrodynamics (QED) effects by performing high-precision x-ray spectroscopy of antiprotonic atoms. By utilizing advanced microcalorimeter detection techniques and a low-energy antiproton beam provided by the ELENA …

fr (code pays fourni par la source)

Cold source of atomic hydrogen for loading large magnetic traps

Aleksei Semakin, Janne Ahokas, Otto Hanski, V. Dvornichenko et autres

We present a design and performance tests of an intense source of cold hydrogen atoms for loading large magnetic traps. Our source is based on a cryogenic dissociator of molecular hydrogen at 0.6 K followed by a series of thermal accommodators at …

fi, fr, at, ch (code pays fourni par la source)

Erratum to: Production of antihydrogen atoms by 6 keV antiprotons through a positronium cloud

P. Adrich, P. Blumer, G. Caratsch, М. Chung et autres

International audience

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Corrigendum to “Positron accumulation in the GBAR experiment” [Nucl. Inst. Method. Phys. Res. A 1040 (2022) 167263]

Philipp Blumer, Michael H. Charlton, М. Chung, Pierre Cladé et autres

ch, gb, kr, fr, se (code pays fourni par la source)