B. Colquhoun

collaborators

3 papers

hep-lat2026

New high-precision $b$ , $c$ , and $s$ masses from pseudoscalar-pseudoscalar correlators in $n_{f} = 4$ lattice QCD

Brian Colquhoun, Christine T. H. Davies, Daniel Hatton +1

We extend an earlier lattice QCD analysis of heavy-quark current-current correlators to obtain new values for the $MS$ masses of the $b$ , $c$ , and $s$ ~quarks. T…

hep-lat2025

Precise prediction of the decay rate for $I^\cdot_{b} \to I^^{3} I^^{3}$ from lattice QCD

Brian Colquhoun, Christine T. H. Davies, G. Peter Lepage

We calculate the decay rate for $I^\cdot_{b} \to I^^{3} I^^{3}$ in lattice QCD for the first time, providing a precise prediction for the Belle II experiment. Our calculation includes $u$ , $d$ , $s…

hep-lat2025

Constraints on axion-like particles using lattice QCD calculations of the rate for $J / I ¨ \to I^^{3} a$

Brian Colquhoun, Christine T. H. Davies, G. Peter Lepage +1

A key search mode for axion-like particles (ALPs) that couple to charm quarks is $J / I ¨ \to I^^{3} a$ . Here we calculate the form factor that allows the rate of this process to be determi…

New high-precision b, c, and s masses from pseudoscalar-pseudoscalar correlators in nf​=4 lattice QCD

Precise prediction of the decay rate for I^⋅b​→I^3I^3 from lattice QCD

Constraints on axion-like particles using lattice QCD calculations of the rate for J/I¨→I^3a

New high-precision $b$ , $c$ , and $s$ masses from pseudoscalar-pseudoscalar correlators in $n_{f} = 4$ lattice QCD

Precise prediction of the decay rate for $I^\cdot_{b} \to I^^{3} I^^{3}$ from lattice QCD

Constraints on axion-like particles using lattice QCD calculations of the rate for $J / I ¨ \to I^^{3} a$