Zobrazeno 1 - 10
of 182
pro vyhledávání: '"Thomas, Christopher E"'
The first determination of doubly-charmed isospin-0 coupled-channel $DD^\ast-D^\ast D^\ast$ scattering amplitudes from lattice QCD is presented. The finite-volume spectrum is computed for three lattice volumes with a light-quark mass corresponding to
Externí odkaz:
http://arxiv.org/abs/2405.15741
Publikováno v:
JHEP 07 (2024) 012
Elastic $S-$wave scattering of a charm meson with a light pseudoscalar meson in $J^P =0^+$ is investigated in the flavour $\bar{\mathbf{3}}$, $\mathbf{6}$ and $\overline{\mathbf{15}}$ sectors at the $SU(3)_f$ flavour point using lattice QCD, working
Externí odkaz:
http://arxiv.org/abs/2403.10498
Publikováno v:
Phys.Rev.D 109 (2024) 11, 114503
In order to explore the spectrum of hidden-charm scalar and tensor resonances, we study meson-meson scattering with $J^{PC}=0^{++}, 2^{++}$ in the charmonium energy region using lattice QCD. Employing a light-quark mass corresponding to $m_\pi \appro
Externí odkaz:
http://arxiv.org/abs/2309.14071
Publikováno v:
Phys.Rev.Lett. 132 (2024) 24, 241901
We determine $J^{PC}=0^{++}$ and $2^{++}$ hadron-hadron scattering amplitudes in the charmonium energy region up to 4100 MeV using lattice QCD, a first-principles approach to QCD. Working at $m_\pi\approx 391$ MeV, more than 200 finite-volume energy
Externí odkaz:
http://arxiv.org/abs/2309.14070
Publikováno v:
JHEP 05 (2024) 230
The coupling of various charmonium mesons to a photon is studied using lattice QCD, giving access to radiative form factors and transitions, and probing the mesons' structure. Methods are developed which allow the robust determination of amplitudes,
Externí odkaz:
http://arxiv.org/abs/2301.08213
Autor:
Bulava, John, Briceño, Raúl, Detmold, William, Döring, Michael, Edwards, Robert G., Francis, Anthony, Knechtli, Francesco, Lewis, Randy, Prelovsek, Sasa, Ryan, Sinéad M., Rusetsky, Akaki, Sharpe, Stephen R., Szczepaniak, Adam, Thomas, Christopher E., Wagman, Michael L., Wagner, Marc
The status and prospects for investigations of exotic and conventional hadrons with lattice QCD are discussed. The majority of hadrons decay strongly via one or multiple decay-channels, including most of the experimentally discovered exotic hadrons.
Externí odkaz:
http://arxiv.org/abs/2203.03230
Autor:
Gayer, Luke, Lang, Nicolas, Ryan, Sinéad M., Tims, David, Thomas, Christopher E., Wilson, David J.
Publikováno v:
JHEP 07 (2021) 123
Isospin-1/2 $D\pi$ scattering amplitudes are computed using lattice QCD, working in a single volume of approximately $(3.6\; \mathrm{fm})^3$ and with a light quark mass corresponding to $m_\pi\approx239$ MeV. The spectrum of the elastic $D\pi$ energy
Externí odkaz:
http://arxiv.org/abs/2102.04973
Autor:
Woss, Antoni J., Dudek, Jozef J., Edwards, Robert G., Thomas, Christopher E., Wilson, David J.
Publikováno v:
Phys. Rev. D 103, 054502 (2021)
We present the first determination of the hadronic decays of the lightest exotic $J^{PC}=1^{-+}$ resonance in lattice QCD. Working with SU(3) flavor symmetry, where the up, down and strange quark masses approximately match the physical strange-quark
Externí odkaz:
http://arxiv.org/abs/2009.10034
Autor:
Hansen, Maxwell T., Briceño, Raul A., Edwards, Robert G., Thomas, Christopher E., Wilson, David J.
Publikováno v:
Phys. Rev. Lett. 126, 012001 (2021)
Focusing on three-pion states with maximal isospin ($\pi^+\pi^+\pi^+$), we present the first non-perturbative determination of an energy-dependent three-hadron scattering amplitude from first-principles QCD. The calculation combines finite-volume thr
Externí odkaz:
http://arxiv.org/abs/2009.04931
Autor:
Cheung, Gavin K. C., Thomas, Christopher E., Wilson, David J., Moir, Graham, Peardon, Michael, Ryan, Sinéad M.
Publikováno v:
JHEP 02 (2021) 100
Elastic scattering amplitudes for $I=0$ $DK$ and $I=0,1$ $D\bar{K}$ are computed in $S$, $P$ and $D$ partial waves using lattice QCD with light-quark masses corresponding to $m_\pi = 239$ MeV and $m_\pi = 391$ MeV. The $S$-waves contain interesting f
Externí odkaz:
http://arxiv.org/abs/2008.06432