arXiv subjects

Hugh Shanahan

Publications and source records attributed to Hugh Shanahan.

4 recordsLinked to original sources

arXiv2025

Institutional Policy Pathways for Supporting Research Software: Global Trends and Local Practices

Research software is essential to modern science, yet many research-performing organisations lack coherent policies to support its development, sustainability, and recognition. Despite its central role in research outcomes, research software and its personnel are often excluded from research institution policies. This article discusses the work of the Policies in Research Organisations for Research Software (PRO4RS) Working Group, exploring current gaps, including limited support for research software personnel, and offering recommendations for embedding software into policy frameworks to ensure the software is valued, sustained, and aligned with broader research goals. The analysis proposes a three-layer framework to guide policy development: central policies that explicitly recognise software as a scholarly output; middle-layer policies that align related areas such as open science, intellectual property, and research evaluation; and outer-layer mechanisms like guidelines and frameworks that enable practical implementation. Institutions are encouraged to assess existing practices, adopt international declarations, and engage stakeholders to advance software recognition. Stronger institutional policies can foster good practices, boost collaboration, support reproducibility, and strengthen researcher development, to maximise both institutional value and research impact, and position organisations as leaders in open, sustainable, software-driven science.

cs.SE↗

arXiv1995

Masses and decay constants of the light mesons in the quenched approximation using the tadpole--improved SW-clover action

We present results for the masses and decay constants of the light mesons in quenched QCD using the standard gluon action and a tadpole--improved SW--clover fermionic action to reduce discretisation errors. The calculation has been carried out at fixed volume and three lattice spacings corresponding to $β=5.7$, $6.0$ and $6.2$. We make comparisons with the conventional SW--clover scheme. We use our results to extract continuum limits and to quantify the size of discretisation errors at smaller $β$-values.

hep-lat↗

arXiv1993

A lattice calculation of the branching ratio for $\overline{B} \rightarrow K^* γ$

Preliminary results are presented on the calculation of the relevant form factor for the radiative decay $\overline{B} \rightarrow K^* γ$ We find that the form factor is weakly dependent on the spectator quark mass. We compare the results obtained for a full chiral extrapolation and where this independence is assumed. Both results are found to be statistically consistent with the experimental data.

hep-lat↗

arXiv1992

There is no $R^3 X S^1$ vacuum gravitational instanton

Gravitational instantons, solutions to the euclidean Einstein equations, with topology $R^3 XS^1$ arise naturally in any discussion of finite temperature quantum gravity. This Letter shows that all such instantons (irrespective of their interior behaviour) must have the same asymptotic structure as the Schwarzschild instanton. Using this, it can be shown that if the Ricci tensor of the manifold is non-negative it must be flat. One special case is when the Ricci tensor vanishes; hence one can conclude that there is no nontrivial vacuum gravitational instanton. This result has uses both in quantum and classical gravity. It places a significant restriction on the instabilities of hot flat space. It also can be used to show that any static vacuum Lorentzian Kaluza-Klein solution is flat.

gr-qc↗