Anthony W. Thomas
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Anthony W. Thomas has a total of 453 co-authors. Here are the top co-authors by number of shared publications:
- Derek B. Leinweber
Adelaide University
105 shared publications - Ross D. Young
The University of Adelaide
84 shared publications - Hrayr H. Matevosyan
ARC Centre of Excellence for Particle Physics at the Terascale, and CSSM, Department of Physics, The University of Adelaide, Adelaide, South Australia 5005, Australia
42 shared publications - Kazunori Tsushima
Universidade Cidade de São Paulo
36 shared publications - Wally Melnitchouk
Jefferson Lab
33 shared publications - Xuan-Gong Wang
University of Adelaide
28 shared publications
Latest Publications
- 31 March 2026
- Published by American Physical Society (APS) in Physical Review D
- Vol. 113 (6)
f -mode oscillations for hyperons and H dibaryons in neutron stars
- 31 March 2026
- Published by American Physical Society (APS) in Physical Review D
- Vol. 113 (6)
f -mode oscillations for hyperons and H dibaryons in neutron stars
- Open Access
- 19 March 2026
- Published by IOP Publishing in Journal of Physics G: Nuclear and Particle Physics
- Vol. 53 (4)
WIMP dark matter within the dark photon portal
We test the dark photon as a portal connecting to the dark sector in the case of Dirac fermion and complex scalar dark matter with masses up to 1 TeV. Both the dark photon and the $Z$ boson contribute to the dark matter annihilation and dark matter--nucleon scattering processes. We derive the lower limits on the dark parameters from thermal relic density. The corresponding spin-independent dark matter--proton cross sections are compared with the upper bounds set by direct detection. We explore the allowed regions of the dark parameter space that are consistent with these constraints.- 19 March 2026
- Published by IOP Publishing in Journal of Physics G: Nuclear and Particle Physics
- Vol. 53 (4)
Open AccessWIMP dark matter within the dark photon portal
We test the dark photon as a portal connecting to the dark sector in the case of Dirac fermion and complex scalar dark matter with masses up to 1 TeV. Both the dark photon and the $Z$ boson contribute to the dark matter annihilation and dark matter--nucleon scattering processes. We derive the lower limits on the dark parameters from thermal relic density. The corresponding spin-independent dark matter--proton cross sections are compared with the upper bounds set by direct detection. We explore the allowed regions of the dark parameter space that are consistent with these constraints. - 4 March 2026
- Published by American Physical Society (APS) in Physical Review D
- Vol. 113 (5)
Extracting nucleon resonance transition GPDs from e − N → e − γ N π deeply virtual Compton scattering
- 4 March 2026
- Published by American Physical Society (APS) in Physical Review D
- Vol. 113 (5)
Extracting nucleon resonance transition GPDs from e − N → e − γ N π deeply virtual Compton scattering
- Open Access
- 10 February 2026
- Published by Jagiellonian University in Acta Physica Polonica B
- Vol. 57 (2)
The Roper Resonance: Still Controversial 60 Years Later
Few baryon resonances have generated as much discussion, even controversy, as the first positive parity excited state with nucleon quantum numbers. We re-examine the issue using insight gained from lattice QCD, complemented by Hamiltonian effective field theory. In doing so, we also examine the distinction between a state that can be naturally described as a quark model state and one that is dynamically generated. Published by the Jagiellonian University 2026 authors
- 10 February 2026
- Published by Jagiellonian University in Acta Physica Polonica B
- Vol. 57 (2)
Open AccessThe Roper Resonance: Still Controversial 60 Years Later
Few baryon resonances have generated as much discussion, even controversy, as the first positive parity excited state with nucleon quantum numbers. We re-examine the issue using insight gained from lattice QCD, complemented by Hamiltonian effective field theory. In doing so, we also examine the distinction between a state that can be naturally described as a quark model state and one that is dynamically generated. Published by the Jagiellonian University 2026 authors
- 28 January 2026
- Published by American Physical Society (APS) in Physical Review C
- Vol. 113 (1)
Heavy neutron star phenomenology with an H dibaryon
- 28 January 2026
- Published by American Physical Society (APS) in Physical Review C
- Vol. 113 (1)
Heavy neutron star phenomenology with an H dibaryon
- Open Access
- 23 December 2025
- Published by Sissa Medialab Srl
- Vol. 500, 180
Evidence for and implications of a dark photon
We performed the first global QCD analysis of electron-nucleon deep-inelastic scattering and related high-energy data by including the contribution from a dark photon. Our results revealed a significant reduction in $\chi^2$ relative to the baseline result without new physics. From a hypothesis test, our best dark photon fit is preferred over the Standard Model by as much as $6.5\ \sigma$, providing the first hint for the existence of a dark photon, although indirectly. Additionally, we explored the implications of a dark photon in party-violating electron scattering, rare kaon decay, and the electroweak precision observables. The dark photon as a portal connecting to dark matter particles was also discussed.- 23 December 2025
- Published by Sissa Medialab Srl
- Vol. 500, 180
Open AccessEvidence for and implications of a dark photon
We performed the first global QCD analysis of electron-nucleon deep-inelastic scattering and related high-energy data by including the contribution from a dark photon. Our results revealed a significant reduction in $\chi^2$ relative to the baseline result without new physics. From a hypothesis test, our best dark photon fit is preferred over the Standard Model by as much as $6.5\ \sigma$, providing the first hint for the existence of a dark photon, although indirectly. Additionally, we explored the implications of a dark photon in party-violating electron scattering, rare kaon decay, and the electroweak precision observables. The dark photon as a portal connecting to dark matter particles was also discussed. - Open Access
- 23 December 2025
- Published by Sissa Medialab Srl
- Vol. 500, 163
Spectral parameters of the $\rho$ resonance from lattice QCDWe present a lattice QCD investigation of the $\rho$ resonance.The mass and width are extrapolated to the physical pion mass and continuum limit ($\mathcal{O}(a^2)$) using a linear function of $a^2$ and $m^2_\pi$. Two methods are applied to extract the parameters of $\rho$ from the lattice enenrgy levels, L\"uscher equation plus Breit-Wigner form, and Hamiltonian effective field theory. Both of two methods obtain the consistent values of the mass and width of $\rho$, $(m_\rho,\,\Gamma_\rho) = (781.6\pm10.0,\, 146.5\pm 9.9)$ MeV, which are in good agreement with experiment.- 23 December 2025
- Published by Sissa Medialab Srl
- Vol. 500, 163
Open AccessSpectral parameters of the $\rho$ resonance from lattice QCDWe present a lattice QCD investigation of the $\rho$ resonance.The mass and width are extrapolated to the physical pion mass and continuum limit ($\mathcal{O}(a^2)$) using a linear function of $a^2$ and $m^2_\pi$. Two methods are applied to extract the parameters of $\rho$ from the lattice enenrgy levels, L\"uscher equation plus Breit-Wigner form, and Hamiltonian effective field theory. Both of two methods obtain the consistent values of the mass and width of $\rho$, $(m_\rho,\,\Gamma_\rho) = (781.6\pm10.0,\, 146.5\pm 9.9)$ MeV, which are in good agreement with experiment. - 27 October 2025
- Published by World Scientific Pub Co Pte Ltd in Modern Physics Letters A
- Vol. 40 (40)
The nature of excited states in QCD
In our quest to understand nonperturbative QCD, baryon spectroscopy plays a vital role. In particular, we need to understand whether observed resonances are best identified as three-quark states or whether they are dynamically generated. There is some confusion about how one might distinguish these cases. We address these questions using selected states with masses below 2[ ]GeV as prime examples.
- 27 October 2025
- Published by World Scientific Pub Co Pte Ltd in Modern Physics Letters A
- Vol. 40 (40)
The nature of excited states in QCD
In our quest to understand nonperturbative QCD, baryon spectroscopy plays a vital role. In particular, we need to understand whether observed resonances are best identified as three-quark states or whether they are dynamically generated. There is some confusion about how one might distinguish these cases. We address these questions using selected states with masses below 2[ ]GeV as prime examples.
- Open Access
- 24 October 2025
- Published by Sissa Medialab Srl
- Vol. 483, 272
Constraints On the Dark Sector from Electroweak Precision Observables
We revisit the Standard Model fit to electroweak precision observables in using the latest data and the Particle Data Group (PDG) measurement of the W boson mass. The analysis is then repeated in light of the new W boson mass measurement from the Collider Detector at Fermilab (CDF) collaboration. We then introduce a dark photon to the model, placing constraints on the parameter space arising from these electroweak precision observables, both for the PDG and CDF values for the W boson mass. We also extend previous work by placing the first electroweak precision observable constraints on the coupling of dark photons to the fermionic dark matter sector.
- 24 October 2025
- Published by Sissa Medialab Srl
- Vol. 483, 272
Open AccessConstraints On the Dark Sector from Electroweak Precision Observables
We revisit the Standard Model fit to electroweak precision observables in using the latest data and the Particle Data Group (PDG) measurement of the W boson mass. The analysis is then repeated in light of the new W boson mass measurement from the Collider Detector at Fermilab (CDF) collaboration. We then introduce a dark photon to the model, placing constraints on the parameter space arising from these electroweak precision observables, both for the PDG and CDF values for the W boson mass. We also extend previous work by placing the first electroweak precision observable constraints on the coupling of dark photons to the fermionic dark matter sector.
- Open Access
Model Independence of Effective Field Theory
The use of effective field theory offers a systematic way to improve calculations of nuclear reactions and the properties of atomic nuclei. Its successes have led to the widespread belief that the predictions of this approach are model independent. We explain why this is definitely not the case.
Open AccessModel Independence of Effective Field Theory
The use of effective field theory offers a systematic way to improve calculations of nuclear reactions and the properties of atomic nuclei. Its successes have led to the widespread belief that the predictions of this approach are model independent. We explain why this is definitely not the case.