263 citations · 1.6k across the 44 of their papers we have counts for
18 papers · 1 filter
Correlation of neutrinoless double-beta decay nuclear matrix elements with nucleon-nucleon phase shifts
A. Belley, J. Pitcher, T. Miyagi +2
We present an ab initio study of the correlation between nuclear matrix elements of neutrinoless double-beta () decay and nucleon-nucleon scattering phase shifts in the $^1S_…
Impact of two-body currents on magnetic dipole moments of nuclei
T. Miyagi, X. Cao, R. Seutin +5
We investigate the effects of two-body currents on magnetic dipole moments of medium-mass and heavy nuclei using the valence-space in-medium similarity renormalization group with c…
Ab initio uncertainty quantification of neutrinoless double-beta decay in Ge
A. Belley, J. M. Yao, B. Bally +9
The observation of neutrinoless double-beta () decay would offer proof of lepton number violation, demonstrating that neutrinos are Majorana particles, while also helping us…
Magnetic dipole operator from chiral effective field theory for many-body expansion methods
R. Seutin, O. J. Hernandez, T. Miyagi +4
Many-body approaches for atomic nuclei generally rely on a basis expansion of the nuclear states, interactions, and current operators. In this work, we derive the representation of…
Ab initio calculations of neutrinoless decay refine neutrino mass limits
A. Belley, T. Miyagi, S. R. Stroberg +1
Neutrinos are perhaps the most elusive known particles in the universe. We know they have some nonzero mass, but unlike all other particles, the absolute scale remains unknown. In…
Randomized Low-Rank Decompositions of Nuclear Three-Body Interactions
A. Tichai, P. Arthuis, K. Hebeler +5
First-principles simulations of many-fermion systems are commonly limited by the computational requirements of processing large data objects. As a remedy, we propose the use of low…
\texttt{NuHamil}: A numerical code to generate nuclear two- and three-body matrix elements from chiral effective field theory
Takayuki Miyagi
The applicability of nuclear {\it ab initio} calculations has rapidly extended over the past decades. However, starting research projects is still challenging due to the required n…
Ab initio studies of double Gamow-Teller transition and its correlation with neutrinoless double beta decay
J. M. Yao, I. Ginnett, A. Belley +7
We use chiral interactions and several {\em ab initio} methods to compute the nuclear matrix elements (NMEs) for ground-state to ground-state double Gamow-Teller transitions in a r…
Ab initio predictions link the neutron skin of Pb to nuclear forces
Baishan Hu, Weiguang Jiang, Takayuki Miyagi +8
Heavy atomic nuclei have an excess of neutrons over protons, which leads to the formation of a neutron skin whose thickness is sensitive to details of the nuclear force. This links…
Ab initio calculation of muon capture on Mg
L. Jokiniemi, T. Miyagi, S. R. Stroberg +3
In this work we study ordinary muon capture (OMC) on Mg from a first principles perspective. Starting from a particular two- and three-nucleon interaction derived from chira…
Ab initio structure factors for spin-dependent dark matter direct detection
B. S. Hu, J. Padua-Argüelles, S. Leutheusser +3
We present converged ab initio calculations of structure factors for elastic spin-dependent WIMP scattering off all nuclei used in dark matter direct-detection searches: F,…
Converged ab initio calculations of heavy nuclei
T. Miyagi, S. R. Stroberg, P. Navrátil +2
We propose a novel storage scheme for three-nucleon (3N) interaction matrix elements relevant for the normal-ordered two-body approximation used extensively in ab initio calculatio…
Ab initio benchmarks of neutrinoless double beta decay in light nuclei with a chiral Hamiltonian
J. M. Yao, A. Belley, R. Wirth +5
We report ab initio benchmark calculations of nuclear matrix elements (NMEs) for neutrinoless double-beta () decays in light nuclei with mass number ranging from to $A=…
Ab initio neutrinoless double-beta decay matrix elements for 48Ca, 76Ge, and 82Se
A. Belley, C. G. Payne, S. R. Stroberg +2
We calculate basis-space converged neutrinoless decay nuclear matrix elements for the lightest candidates: 48Ca, 76Ge and 82Se. Starting from initial two- and three-nucleon fo…
Ab initio multi-shell valence-space Hamiltonians and the island of inversion
T. Miyagi, S. R. Stroberg, J. D. Holt +1
In the shell-model framework, valence-space Hamiltonians connecting multiple major-oscillator shells are of key interest for investigating the physics of neutron-rich nuclei, which…
Ground-state properties of doubly magic nuclei from the unitary-model-operator approach with the chiral two- and three-nucleon forces
T. Miyagi, T. Abe, M. Kohno +5
The ground-state energies and radii for He, O, and Ca are calculated with the unitary-model-operator approach (UMOA). In the present study, we employ the simila…
Introduction of the one-body correlation operator in the unitary-model-operator approach
Takayuki Miyagi, Takashi Abe, Ryoji Okamoto +1
In the earlier unitary-model-operator approach (UMOA), one-body correlations have been taken into account approximately by the diagonalization of unitary-transformed Hamiltonians i…
Ground-state energies and charge radii of He, O, Ca, and Ni in the unitary-model-operator approach
Takayuki Miyagi, Takashi Abe, Ryoji Okamoto +1
We study the nuclear ground-state properties by using the unitary-model-operator approach (UMOA). Recently, the particle-basis formalism has been introduced in the UMOA and enables…