arXiv subjects

N. Jones

Publications and source records attributed to N. Jones.

3 recordsLinked to original sources

arXiv2020

Two-Symmetry Penning-Ioffe Trap for Antihydrogen Cooling and Spectroscopy

High-accuracy spectroscopic comparisons of trapped antihydrogen atoms ($\overline{\text{H}}$) and hydrogen atoms ($\text{H}$) promise to stringently test the fundamental CPT symmetry invariance of the standard model of particle physics. ATRAP's nested Penning-Ioffe trap was developed for such studies. The first of its unique features is that its magnetic Ioffe trap for $\overline{\text{H}}$ atoms can be switched between quadrupole and octupole symmetries. The second is that it allows laser and microwave access perpendicular to the central axis of the traps.

physics.ins-det↗

arXiv2010

Current New Zealand Activities in Radio Astronomy: Building Capacity in Engineering & Science for the Square Kilometre Array

We present an update on the NZ-wide advances in the field of Radio Astronomy and Radio Engineering with a particular focus on contributions, not thus reported elsewhere, which hope to either directly or indirectly contribute to New Zealand's engagement with the international Square Kilometre Array (SKA) project. We discuss the status of the SKA project in New Zealand with particular reference to activities of the New Zealand Square Kilometre Array Research and Development Consortium.

astro-ph.IM↗

arXiv1994

Meson Supermultiplet Decay Constants

We use a covariant supermultiplet theory to determine the primary coupling constant associated with several types of two-body meson decay. Despite the diverse range of decays considered the primary coupling constant is surprisingly uniform. We envisage the extension of the techniques to heavy quark cases, including as preliminary examples the calculation of the $D^{*+}$ and $D^{*0}$ total decay widths with results $57.7 \pm 1.5$ KeV and $42.5 \pm 2.6$ KeV respectively, as well as some predictions about $D^*$ and $B^*$ radiative decays. (3 uuencoded Postscript Files are appended at the end of the TexFile.)

hep-ph↗