B. Colquhoun
University of Glasgow
12 Papers
9 Citations
B. Colquhoun is an academic researcher from University of Glasgow. The author has contributed to research in topics: Lattice QCD & Quark. The author has an hindex of 4, co-authored 4 publications.
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Papers
The Upsilon spectrum and the determination of the lattice spacing from lattice QCD including charm quarks in the sea
R. J. Dowdall,B. Colquhoun,Jan O. Daldrop,Christine Davies,Iain Kendall,Eduardo Follana,Thomas C. Hammant,R. R. Horgan,G. P. Lepage,Christopher Monahan,Eike Hermann Müller +10 more
TL;DR: In this article, the lattice spacing was determined using the 2 S 1S splitting and the 3 S 2S splitting, and the results were improved to 1.4% and 2.5% using the Highly Improved Staggered Quark action.
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Form factors of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:mi>π</mml:mi><mml:mo>ℓ</mml:mo><mml:mi>ν</mml:mi></mml:math> and a determination of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display=
TL;DR: In this paper , the form factors of the semileptonic decay of the Cabibbo-Kobayashi-Maskawa matrix element were derived using a fully relativistic lattice fermion action.
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>B</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow><mml:mi>D</mml:mi></mml:mrow><mml:mrow><mml:mo>*</mml:mo></mml:mrow></mml:msup><mml:mo>ℓ</mml:mo><mml:msub><mml:mrow><mml:mi>ν</mml:mi></mml:mr
Y. Aoki,B. Colquhoun,H. Fukaya,S. Hashimoto,T. Kaneko,R. Kellermann,J. Koponen,E. Kou +7 more
- 04 Apr 2024
TL;DR: Lattice QCD computation of semileptonic form factors for B→D* decay using a chiral fermion formulation, controlling systematic errors, and obtaining a standard model prediction for the decay ratio R(D*) consistent with previous lattice QCD results.
Investigating exotic heavy-light tetraquarks with 2+1 flavour lattice QCD
B. Colquhoun,A. Francis,R.J. Hudspith,Randy Lewis,Kim Maltman +4 more
- 16 May 2022
TL;DR: In this paper , it was shown that there are a number of tetraquark channels for which some phenomenological models, already constrained by the ordinary meson and baryon spectrum, predict deep binding, and the lattice calculations of doubly-charmed and bottom-charm channels where such predictions exist.
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B → D ( ∗ ) ` ν form factors from N f = 2 + 1 QCD with Möbius domain-wall quarks
TL;DR: In this paper , the Möbius domain-wall action is employed for light, charm and bottom quarks at lattice cutoffs a−1 = 2.5 and 3.6 GeV.
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