Zobrazeno 1 - 10
of 2 204
pro vyhledávání: '"THOMAS, ANTHONY"'
We present an exploratory lattice QCD analysis of the $ \Omega $-baryon spectrum. Using smeared three-quark operators in a correlation matrix analysis, we report masses for the ground, first and second excited states of the $ J^P = 1/2^\pm,\, 3/2^\pm
Externí odkaz:
http://arxiv.org/abs/2408.16281
Publikováno v:
Phys. Rev. D 110, 094015 (2024)
We refine our previous calculation of multipole amplitude $E_{0+}$ for pion photoproduction process, $\gamma N\rightarrow\pi N$. The treatment of final-state interactions is based upon an earlier analysis of pion-nucleon scattering within Hamiltonian
Externí odkaz:
http://arxiv.org/abs/2407.05334
Autor:
Kymn, Christopher J., Mazelet, Sonia, Thomas, Anthony, Kleyko, Denis, Frady, E. Paxon, Sommer, Friedrich T., Olshausen, Bruno A.
We propose a normative model for spatial representation in the hippocampal formation that combines optimality principles, such as maximizing coding range and spatial information per neuron, with an algebraic framework for computing in distributed rep
Externí odkaz:
http://arxiv.org/abs/2406.18808
We present a coupled-channel analysis of the $ J^P = 3/2^+ \Delta $-baryon spectrum, based in the framework of Hamiltonian Effective Field Theory (HEFT). We construct a Hamiltonian which mixes quark model-like single-particle states and two-particle
Externí odkaz:
http://arxiv.org/abs/2406.00981
Publikováno v:
Phys.Rev.C 110 (2024) 2, 025503
We investigate the neutrino elastic differential cross-section (NDCS) and corresponding mean free path for neutral current scattering in the dense matter of a neutron star. A wide range of observed neutron star (NS) masses is considered, including th
Externí odkaz:
http://arxiv.org/abs/2404.03213
On-device learning has emerged as a prevailing trend that avoids the slow response time and costly communication of cloud-based learning. The ability to learn continuously and indefinitely in a changing environment, and with resource constraints, is
Externí odkaz:
http://arxiv.org/abs/2403.04759
Autor:
Leinweber, Derek B., Abell, Curtis D., Hockley, Liam C., Kamleh, Waseem, Liu, Zhan-Wei, Stokes, Finn M., Thomas, Anthony W., Wu, Jia-Jun
This presentation opens with a brief review of lattice QCD calculations showing the $2s$ radial excitation of the nucleon sits at approximately 2 GeV, well above the Roper resonance position. We then proceed to reconcile this observation with experim
Externí odkaz:
http://arxiv.org/abs/2401.04901
Autor:
Liu, Jiong-Jiong, Liu, Zhan-Wei, Chen, Kan, Guo, Dan, Leinweber, Derek B., Liu, Xiang, Thomas, Anthony W.
Publikováno v:
Phys. Rev. D 109, 054025 (2024)
We examine the internal structure of the $\Lambda(1670)$ through an analysis of lattice QCD simulations and experimental data within Hamiltonian effective field theory. Two scenarios are presented. The first describes the $\Lambda(1670)$ as a bare th
Externí odkaz:
http://arxiv.org/abs/2312.13072
We present a lattice QCD analysis of the $ \Delta $-baryon spectrum, with the goal of finding the position of the $ 2s $ radial excitation of the $ \Delta(1232) $ ground state. Using smeared three-quark operators in a correlation matrix analysis, we
Externí odkaz:
http://arxiv.org/abs/2312.11574