SCOAP3 Repository 9 records found  Search took 0.02 seconds. 
1. The I  = 1 pion–pion scattering amplitude and timelike pion form factor from N f  = 2 + 1 lattice QCD / Andersen, Christian ; Bulava, John ; Hörz, Ben ; Morningstar, Colin
The elastic I=1 p -wave ππ scattering amplitude is calculated together with the isovector timelike pion form factor using lattice QCD with Nf=2+1 dynamical quark flavors. [...]
Published in Nuclear Physics B 939 (2019) 145-173 10.1016/j.nuclphysb.2018.12.018
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2. Determination of s - and p -wave I  = 1/2 Kπ scattering amplitudes in N f  = 2 + 1 lattice QCD / Brett, Ruairí ; Bulava, John ; Fallica, Jacob ; Hanlon, Andrew ; et al
The elastic I=1/2 , s - and p -wave kaon-pion scattering amplitudes are calculated using a single ensemble of anisotropic lattice QCD gauge field configurations with Nf=2+1 flavors of dynamical Wilson-clover fermions at mπ=230 MeV . [...]
Published in Nuclear Physics B (2018) 10.1016/j.nuclphysb.2018.05.008
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3. Elastic I=3/2 p-wave nucleon-pion scattering amplitude and the Δ(1232) resonance from Nf=2+1 lattice QCD / Andersen, Christian Walther ; Bulava, John ; Hörz, Ben ; Morningstar, Colin
We present the first direct determination of meson-baryon resonance parameters from a scattering amplitude calculated using lattice QCD. [...]
Published in Phys. Rev. D 97 (2018) 10.1103/PhysRevD.97.014506 arXiv:1710.01557
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4. Estimating the two-particle K -matrix for multiple partial waves and decay channels from finite-volume energies / Morningstar, Colin ; Bulava, John ; Singha, Bijit ; Brett, Ruairí ; et al
An implementation of estimating the two-to-two K -matrix from finite-volume energies based on the Lüscher formalism and involving a Hermitian matrix known as the “box matrix” is described. [...]
Published in Nuclear Physics B (2017) 10.1016/j.nuclphysb.2017.09.014
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5. I = 1 and I = 2 π – π scattering phase shifts from N f = 2 + 1 lattice QCD / Bulava, John ; Fahy, Brendan ; Hörz, Ben ; Juge, Keisuke J. ; et al
The I=1p -wave and I=2s -wave elastic π – π scattering amplitudes are calculated from a first-principles lattice QCD simulation using a single ensemble of gauge field configurations with Nf=2+1 dynamical flavors of anisotropic clover-improved Wilson fermions. [...]
Published in Nuclear Physics B (2016) 10.1016/j.nuclphysb.2016.07.024
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6. Non-perturbative improvement of the axial current in Nf=3 lattice QCD with Wilson fermions and tree-level improved gauge action / Bulava, John ; Della Morte, Michele ; Heitger, Jochen ; Wittemeier, Christian
The coefficient cA required for O(a) improvement of the axial current in lattice QCD with Nf=3 flavors of Wilson fermions and the tree-level Symanzik-improved gauge action is determined non-perturbatively. [...]
Published in Nuclear Physics B 896 (2015) 555-568 10.1016/j.nuclphysb.2015.05.003
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7. Precision lattice QCD computation of the B⁎Bπ coupling / Bernardoni, Fabio ; Bulava, John ; Donnellan, Michael ; Sommer, Rainer
The static B⁎Bπ coupling, gˆχ , a low energy constant in the leading order heavy meson chiral Lagrangian, is determined using Nf=2 lattice QCD. [...]
Published in Physics letters B 740 (2015) 278-284 10.1016/j.physletb.2014.11.051
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8. Decay constants of B-mesons from non-perturbative HQET with two light dynamical quarks / Bernardoni, Fabio ; Blossier, Benoît ; Bulava, John ; Della Morte, Michele ; et al
We present a computation of B-meson decay constants from lattice QCD simulations within the framework of Heavy Quark Effective Theory for the b-quark. [...]
Published in Physics letters B 735 (2014) 349-356 10.1016/j.physletb.2014.06.051
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9. The b-quark mass from non-perturbative Nf=2 Heavy Quark Effective Theory at O(1/mh) / Bernardoni, Fabio ; Blossier, Benoît ; Bulava, John ; Della Morte, Michele ; et al
We report our final estimate of the b-quark mass from Nf=2 lattice QCD simulations using Heavy Quark Effective Theory non-perturbatively matched to QCD at O(1/mh) . [...]
Published in Physics letters B 730 (2014) 171-177 10.1016/j.physletb.2014.01.046
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