158 citations · 683 across the 22 of their papers we have counts for
22 papers
Robust ab initio predictions for dimensionless ratios of E2 and radius observables. I. Electric quadrupole moments and deformation
Mark A. Caprio, Pieter Maris, Patrick J. Fasano
Converged results for E2 observables are notoriously challenging to obtain in ab initio no-core configuration interaction (NCCI) approaches. Matrix elements of the E2 operator are…
Accelerating Eigenvalue Computation for Nuclear Structure Calculations via Perturbative Corrections
Dong Min Roh, Esmond Ng, Chao Yang +3
We present a new method for computing the lowest few eigenvalues and the corresponding eigenvectors of a nuclear many-body Hamiltonian represented in a truncated configuration inte…
Direct ab initio calculation of the He nuclear electric dipole polarizability
Peng Yin, Andrey M. Shirokov, Pieter Maris +5
The calculation of nuclear electromagnetic sum rules by directly diagonalizing the nuclear Hamiltonian in a large basis is numerically challenging and has not been performed for $A…
Intruder band mixing in an ab initio description of 12Be
Anna E. McCoy, Mark A. Caprio, Pieter Maris +1
The spectrum of 12Be exhibits exotic features, e.g., an intruder ground state and shape coexistence, normally associated with the breakdown of a shell closure. While previous pheno…
Resonances in Exotic He Nucleus within the No-Core Shell Model
I. A. Mazur, A. M. Shirokov, I. J. Shin +4
We present results of calculations of elastic scattering phase shifts and resonances in . The calculations utilize the SS-HORSE method combined with ab…
Benchmark neutrinoless double-beta decay matrix elements in a light nucleus
R. A. M. Basili, J. M. Yao, J. Engel +4
We compute nuclear matrix elements of neutrinoless double-beta decay mediated by light Majorana-neutrino exchange in the A = 6 system. The goal is to benchmark two many-body approa…
Collective rotation from ab initio theory
M. A. Caprio, P. Maris, J. P. Vary +1
Through ab initio approaches in nuclear theory, we may now seek to quantitatively understand the wealth of nuclear collective phenomena starting from the underlying internucleon in…
Few-nucleon systems with state-of-the-art chiral nucleon-nucleon forces
S. Binder, A. Calci, E. Epelbaum +17
We apply improved nucleon-nucleon potentials up to fifth order in chiral effective field theory, along with a new analysis of the theoretical truncation errors, to study nucleon-de…
Ab Initio Approach to the Non-Perturbative Scalar Yukawa Model
Yang Li, V. A. Karmanov, P. Maris +1
We report on the first non-perturbative calculation of the scalar Yukawa model in the single-nucleon sector up to four-body Fock sector truncation (one "scalar nucleon" and three "…
Emergence of rotational bands in ab initio no-core configuration interaction calculations
M. A. Caprio, P. Maris, J. P. Vary +1
Rotational bands have been observed to emerge in ab initio no-core configuration interaction (NCCI) calculations for p-shell nuclei, as evidenced by rotational patterns for excitat…
Halo nuclei 6He and 8He with the Coulomb-Sturmian basis
M. A. Caprio, P. Maris, J. P. Vary
The rapid Gaussian falloff of the oscillator functions at large radius makes them poorly suited for the description of the asymptotic properties of the nuclear wave function, a pro…
Emergence of rotational bands in ab initio no-core configuration interaction calculations of the Be isotopes
P. Maris, M. A. Caprio, J. P. Vary
The emergence of rotational bands is observed in no-core configuration interaction (NCCI) calculations for the Be isotopes (7<=A<=12), as evidenced by rotational patterns for excit…
Halo nuclei with the Coulomb-Sturmian basis
M. A. Caprio, P. Maris, J. P. Vary
The rapid falloff of the oscillator functions at large radius (Gaussian asymptotics) makes them poorly suited for the description of the asymptotic properties of the nuclear wave f…
Ab Initio study of neutron drops with chiral Hamiltonians
H. D. Potter, S. Fischer, P. Maris +5
We report ab initio calculations for neutron drops in a 10 MeV external harmonic-oscillator trap using chiral nucleon-nucleon plus three-nucleon interactions. We present total bind…
C properties with evolved chiral three-nucleon interactions
P. Maris, J. P. Vary, A. Calci +3
We investigate selected static and transition properties of C using ab initio No-Core Shell Model (NCSM) methods with chiral two- and three-nucleon interactions. We adopt th…
Generalized parton distributions in a light-front nonperturbative approach
D. Chakrabarti, X. Zhao, H. Honkanen +3
Basis Light-front Quantization (BLFQ) has recently been developed as a promising nonperturbative technique. Using BLFQ, we investigate the Generalized Parton Distributions (GPDs) i…
Emergence of rotational bands in ab initio no-core configuration interaction calculations of light nuclei
M. A. Caprio, P. Maris, J. P. Vary
The emergence of rotational bands is observed in no-core configuration interaction (NCCI) calculations for the odd-mass Be isotopes (7<=A<=13) with the JISP16 nucleon-nucleon inter…
Deuteron-equivalent and phase-equivalent interactions within light nuclei
A. M. Shirokov, V. A. Kulikov, A. I. Mazur +2
Background: Phase-equivalent transformations (PETs) are well-known in quantum scattering and inverse scattering theory. PETs do not affect scattering phase shifts and bound state e…
Electron Anomalous Magnetic Moment in Basis Light-Front Quantization Approach
Xingbo Zhao, Heli Honkanen, Pieter Maris +2
We apply the Basis Light-Front Quantization (BLFQ) approach to the Hamiltonian field theory of Quantum Electrodynamics (QED) in free space. We solve for the mass eigenstates corres…
Origin of the anomalous long lifetime of 14C
P. Maris, J. P. Vary, P. Navratil +3
We report the microscopic origins of the anomalously suppressed beta decay of 14C to 14N using the ab initio no-core shell model (NCSM) with the Hamiltonian from chiral effective f…
New development of realistic J-matrix inverse scattering NN interaction and ab initio description of light nuclei
A. M. Shirokov, V. A. Kulikov, P. Maris +3
We discuss the studies of light nuclei in ab initio No-core Full Configuration approach based on extrapolations to the infinite model space of large-scale No-core Shell Model calcu…
Electron in a transverse harmonic cavity
H. Honkanen, P. Maris, J. P. Vary +1
We employ Hamiltonian light-front quantum field theory in a basis function approach to solve the non-perturbative problem of an electron in a strong scalar transverse confining pot…