NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = N.Rocco Found 24 matches. 2024KA11 Phys.Rev. C 109, 034317 (2024) G.Kanwar, A.Lovato, N.Rocco, M.Wagman Mitigating Green's function Monte Carlo signal-to-noise problems using contour deformations
doi: 10.1103/PhysRevC.109.034317
2024NI03 Phys.Rev. C 109, 014623 (2024) A.Nikolakopoulos, A.Lovato, N.Rocco Relativistic effects in Green's function Monte Carlo calculations of neutrino-nucleus scattering
doi: 10.1103/PhysRevC.109.014623
2024SA20 Phys.Rev.Lett. 132, 162501 (2024) S.N.Santiesteban, S.Li, D.Abrams, S.Alsalmi, D.Androic, K.Aniol, J.Arrington, T.Averett, C.Ayerbe Gayoso, J.Bane, S.Barcus, J.Barrow, A.Beck, V.Bellini, H.Bhatt, D.Bhetuwal, D.Biswas, A.Camsonne, J.Castellanos, J.Chen, J.-P.Chen, D.Chrisman, M.E.Christy, C.Clarke, S.Covrig, R.Cruz-Torres, D.Day, D.Dutta, E.Fuchey, C.Gal, F.Garibaldi, T.N.Gautam, T.Gogami, J.Gomez, P.Gueye, T.J.Hague, J.O.Hansen, F.Hauenstein, W.Henry, D.W.Higinbotham, R.J.Holt, C.Hyde, K.Itabashi, M.Kaneta, A.Karki, A.T.Katramatou, C.E.Keppel, P.M.King, L.Kurbany, T.Kutz, N.Lashley-Colthirst, W.B.Li, H.Liu, N.Liyanage, E.Long, A.Lovato, J.Mammei, P.Markowitz, R.E.McClellan, F.Meddi, D.Meekins, R.Michaels, M.Mihovilovic, A.Moyer, S.Nagao, D.Nguyen, M.Nycz, M.Olson, L.Ou, V.Owen, C.Palatchi, B.Pandey, A.Papadopoulou, S.Park, T.Petkovic, S.Premathilake, V.Punjabi, R.D.Ransome, P.E.Reimer, J.Reinhold, S.Riordan, N.Rocco, V.M.Rodriguez, A.Schmidt, B.Schmookler, E.P.Segarra, A.Shahinyan, S.Sirca, K.Slifer, P.Solvignon, T.Su, R.Suleiman, L.Tang, Y.Tian, W.Tireman, F.Tortorici, Y.Toyama, K.Uehara, G.M.Urciuoli, D.Votaw, J.Williamson, B.Wojtsekhowski, S.Wood, Z.H.Ye, J.Zhang, X.Zheng Novel Measurement of the Neutron Magnetic Form Factor from A=3 Mirror Nuclei NUCLEAR REACTIONS 3H, 3He(e-, e-), E=2.222, 4.323 GeV; measured reaction products; deduced σ(θ, E), the neutron magnetic form factor using quasielastic scattering from the mirror nuclei. Comparison with available data. Hall A at Jefferson Lab (JLab).
doi: 10.1103/PhysRevLett.132.162501
2022AN04 Phys.Rev. C 105, 014002 (2022) L.Andreoli, J.Carlson, A.Lovato, S.Pastore, N.Rocco, R.B.Wiringa Electron scattering on A=3 nuclei from quantum Monte Carlo based approaches NUCLEAR REACTIONS 3H(e, e), (e, e'), at momentum transfer θ=300 MeV/c; calculated total longitudinal response density. 3H, 3He(e, e'), at momentum transfer θ=300, 500, 700 MeV/c; calculated longitudinal and transverse response functions, single proton momentum distribution of 3He. 3He(e, e), (e, e'), E=287.2, 319.1, 469.4, 499.9, 560.3, 667.3 MeV; 3H(e, e), (e, e'), E=367.7, 506.9, 557.9, 652.4, 790.2 MeV; calculated inclusive double-differential σ(E). Green's function Monte Carlo (GFMC) method with two approaches for the final hadronic state: the spectral-function (SF) formalism and the short-time approximation (STA). Comparison with experimental data.
doi: 10.1103/PhysRevC.105.014002
2022BR04 Phys.Rev. C 105, 045501 (2022) Empirical capture cross sections for cosmic neutrino detection with 151Sm and 171Tm NUCLEAR REACTIONS 151Sm, 171Tm(ν, X), E ≈ threshold; analyzed experimental data on T1/2 and spectrum shape of β-decay for 151Sm, 171Tm; deduced σ. Estimations for experimental design and constraints relevant to the cosmic neutrino background detection in particular for the proposed PTOLEMY project.
doi: 10.1103/PhysRevC.105.045501
2022GN01 Few-Body Systems 63, 7 (2022) A.Gnech, C.Adams, N.Brawand, G.Carleo, A.Lovato, N.Rocco Nuclei with Up to A=6 Nucleons with Artificial Neural Network Wave Functions NUCLEAR STRUCTURE 2,3H, 6Li, 3,4,6He; calculated VM-ANN and HH point-nucleon densities, ground-state energies and charge radii using as input the leading-order pionless-EFT Hamiltonian with and without the 3N force.
doi: 10.1007/s00601-021-01706-0
2022LO15 Phys. Rev. Res. 4, 043178 (2022) A.Lovato, C.Adams, G.Carleo, N.Rocco Hidden-nucleons neural-network quantum states for the nuclear many-body problem NUCLEAR STRUCTURE 16O; calculated the hidden-nucleon ansatz accuracy comparable to the numerically exact hyperspherical harmonic method in light nuclei and to the auxiliary field diffusion Monte Carlo.
doi: 10.1103/PhysRevResearch.4.043178
2021AD12 Phys.Rev.Lett. 127, 022502 (2021) C.Adams, G.Carleo, A.Lovato, N.Rocco Variational Monte Carlo Calculations of A ≤ 4 Nuclei with an Artificial Neural-Network Correlator Ansatz NUCLEAR STRUCTURE 2,3H, 4He; calculated ground-state energies, point-nucleon densities. Artificial neural networks (ANNs).
doi: 10.1103/PhysRevLett.127.022502
2021IS02 Phys.Rev. C 103, 015502 (2021) J.Isaacson, W.I.Jay, A.Lovato, P.A.N.Machado, N.Rocco New approach to intranuclear cascades with quantum Monte Carlo configurations NUCLEAR REACTIONS 12C(p, p), (p, X), E=5-200 MeV; calculated nucleon density, proton-proton and proton-neutron correlation functions in carbon from Green's function Monte Carlo and mean-field configurations, total σ(E), carbon transparency as function of incident proton energy, histograms of the distance traveled by a struck particle before the first interaction takes place for different values of the interaction cross section, nucleon multiplicity. Novel intranuclear cascade (INC) model with realistic quantum Monte Carlo (QMC) and mean-field (MF) nuclear configurations. Comparison with experimental data.
doi: 10.1103/PhysRevC.103.015502
2021RA07 Phys.Rev. C 103, 035502 (2021) K.Raghavan, P.Balaprakash, A.Lovato, N.Rocco, S.M.Wild Machine-learning-based inversion of nuclear responses NUCLEAR STRUCTURE 4He; calculated response functions characterized by an elastic narrow peak and a quasieleastic (QE) peak, physics-informed neural network (Phys-NN) and maximum entropy (MaxEnt) testing metrics, comparison between the Phys-NN and MaxEnt reconstructions for the one-peak and two-peak datasets, energy-dependent entropy for the Phys-NN and Max-Ent for the one-peak and two-peak datasets; deduced Phys-NN and MaxEnt reconstruction performance. Physics-informed artificial neural network architecture for approximating the inverse of the Laplace transform using realistic, electromagnetic response functions. Relevance to short-range nuclear dynamics and for the correct interpretation of neutrino oscillation experiments.
doi: 10.1103/PhysRevC.103.035502
2020KI08 Phys.Rev. C 101, 065502 (2020) G.B.King, K.Mahn, L.Pickering, N.Rocco Comparing event generator predictions and ab initio calculations of ν-12C neutral-current quasielastic scattering at 1 GeV NUCLEAR REACTIONS 12C(ν, ν), (ν-bar, ν-bar), E=1 GeV; calculated quasielastic differential σ(θ) for neutral-current quasielastic (NCQE) scattering events using event generator (EG) NEUT code (used in analysis of data from T2K experiment at Super-Kamiokande) with two different models on nuclear spectral functions: the relativistic Fermi gas (RFG) and the correlated basis spectral function (CBF). Comparison with analytic calculations using the same two models. Relevance to measurement of neutrino oscillations and exotic physics searches.
doi: 10.1103/PhysRevC.101.065502
2019BA50 Phys.Rev. C 100, 062501 (2019) Lepton scattering from 40Ar and 48Ti in the quasielastic peak region NUCLEAR STRUCTURE 40Ar, 40Ca, 48Ti; calculated radii and charge density distributions, neutron and proton spectral function using the ab initio self-consistent Green's function (SCGF) theory with saturating chiral interactions. Comparison with experimental data. NUCLEAR REACTIONS 40Ar, 48Ti(e, e'), E=2.2 GeV; 12C, 40Ar, 48Ti(ν, ν), (ν, μ-), E=1.0 GeV; calculated inclusive differential σ for electron scattering, and double differential quasielastic neutral and charged current cross sections for muon neutrino scattering, using the calculated spectral functions. Comparison with experimental data from Jefferson Lab. Relevance to long-based neutrino oscillations experiments.
doi: 10.1103/PhysRevC.100.062501
2019LO11 Phys.Rev. C 100, 035502 (2019) A.Lovato, N.Rocco, R.Schiavilla Muon capture in nuclei: An ab initio approach based on Green's function Monte Carlo methods NUCLEAR REACTIONS 4He(μ, nν)3H, (μ, 2nν)2H, (μ, 3nν)1H, 3H(μ, 3nν), E=0-83.6 MeV; calculated differential rates of muon capture on 3H and 4He as function of energy of the muon neutrino using an ab initio Green's function Monte Carlo (GFMC) method, in a dynamical framework based on realistic two- and three-nucleon interactions and realistic nuclear charge-changing weak currents. Comparison with experimental data for muon capture in 4He.
doi: 10.1103/PhysRevC.100.035502
2019RO06 Phys.Rev. C 99, 025502 (2019) N.Rocco, C.Barbieri, O.Benhar, A.De Pace, A.Lovato Neutrino-nucleus cross section within the extended factorization scheme NUCLEAR REACTIONS 12C, 16O(ν, X), (ν-bar, X), E=1 GeV muon neutrinos; calculated scattering differential σ(θ), and total σ using extended factorization scheme based on the impulse approximation and spectral function formalism by including relativistic meson-exchange two-body currents (MEC) relevant for charged-current (CC) and neutral-current (NC) interactions. Relevance to experimental data from MiniBooNE Collaboration, and future generation experiments.
doi: 10.1103/PhysRevC.99.025502
2019RO17 Phys.Rev. C 100, 045503 (2019) N.Rocco, S.X.Nakamura, T.-S.H.Lee, A.Lovato Electroweak pion production on nuclei within the extended factorization scheme NUCLEAR REACTIONS 12C(e, e'π), E=620, 730, 961, 1650 MeV; 12C(ν, ν'), (ν, μ-), E=1.0 GeV; 1H(e, e'π0), (e, e'π+), Q2=0.4, 1.76, 2.95 MeV; 1H(ν, μ-π+), 1n(ν, μ-π0), (ν, μ-π+), E<2.25 GeV muon neutrinos; calculated double differential σ(E) using the dynamical coupled-channel (DCC) ANL-Osaka model and Metropolis Monte Carlo integration techniques for generating the matrix elements of current operators relevant to pion production off the nucleon. Comparison with experimental data from ANL and BNL.
doi: 10.1103/PhysRevC.100.045503
2019SO10 Phys.Rev. C 99, 065503 (2019) J.E.Sobczyk, N.Rocco, A.Lovato, J.Nieves Weak production of strange and charmed ground-state baryons in nuclei NUCLEAR REACTIONS 12C, 16O, 40Ca(ν-bar, μ+Λ), (ν-bar, μ+Σ-), (ν-bar, μ+Σ0), (ν-bar, μ+Σ+), (ν-bar, μ-Λ), E=0.5-5 GeV; calculated differential σ(E, θ) and total σ(E) for muonic neutrino beams, form factors using realistic hole spectral functions with propagation of hyperons in the nuclear medium via a Monte Carlo cascade. Implications in the analysis of experiments from SciBooNE, MicroBooNE, MINERvA and ArgoNeuT collaborations.
doi: 10.1103/PhysRevC.99.065503
2019SO16 Phys.Rev. C 100, 035501 (2019) J.E.Sobczyk, N.Rocco, J.Nieves Polarization of t in quasielastic (anti)neutrino scattering: The role of spectral functions NUCLEAR REACTIONS 16O(ν, ν), (ν-bar, ν-bar'), E=4, 6 GeV; calculated double-differential σ(θ, E) and polarization components for scattering of τ neutrino or anti-neutrino off 16O; analyzed cross sections and polarization components for the charge-current reaction, focusing on the quasielastic region where the single nucleon knock-out dominates reaction mechanism. Relevance to experiments at SHiP facility, and neutrino oscillations.
doi: 10.1103/PhysRevC.100.035501
2018RO11 Phys.Rev. C 97, 055501 (2018) N.Rocco, W.Leidemann, A.Lovato, G.Orlandini Relativistic effects in ab initio electron-nucleus scattering NUCLEAR REACTIONS 4He(e-, e-'), E=300-1108 MeV; calculated longitudinal and transverse electromagnetic response functions with and without two-body relativistic kinematics, and double differential σ(E, θ) using Green's Function Monte Carlo (GFMC) approach with the inclusion of two-fragment model; developed a new algorithm to interpolate response functions to arbitrary values of momentum transfer. Comparison with previous theoretical predictions, and with experimental values.
doi: 10.1103/PhysRevC.97.055501
2018RO21 Phys.Rev. C 98, 025501 (2018) Inclusive electron-nucleus cross section within the self-consistent Green's function approach NUCLEAR STRUCTURE 4He, 16O; calculated charge form factors, point-proton densities, charge densities, and single-nucleon momentum distributions by ab initio self-consistent Green's function approach (SCGF) approach for single-particle propagators using a METROPOLIS Monte Carlo algorithm. NUCLEAR REACTIONS 4He(e, X), E=300, 500, 600, 730, 961 MeV; 16O(e, X), E=737, 880, 1080, 1200 MeV; calculated double-differential σ(E, θ) using the SCGF-ADC(3) propagator, and compared with experimental data.
doi: 10.1103/PhysRevC.98.025501
2018SO03 Phys.Rev. C 97, 035506 (2018) J.E.Sobczyk, N.Rocco, A.Lovato, J.Nieves Scaling within the spectral function approach NUCLEAR REACTIONS 12C(e, e'), at momentum transfer q=0.57-1.2 GeV; calculated nucleon-density response function, transverse, longitudinal, and nucleon-density scaling functions, nonrelativistic PWIA scaling responses using two approaches, semi-phenomenological model, and hole spectral function (SF) based on correlated basis function (CBF). Comparison with experimental data.
doi: 10.1103/PhysRevC.97.035506
2017RO17 Phys.Rev. C 96, 015504 (2017) N.Rocco, L.Alvarez-Ruso, A.Lovato, J.Nieves Electromagnetic scaling functions within the Green's function Monte Carlo approach NUCLEAR REACTIONS 4He, 12C(e, e'), q=300, 400, 500, 600, 700 MeV; calculated longitudinal and transverse scaling functions in the relativistic and nonrelativistic cases; deduced scaling properties of the electromagnetic response functions. Green's function Monte Carlo (GFMC) approach, with only the one-body current contribution. Comparison with experimental data. Novel interpretation of the scaling function, and role of relativistic effects.
doi: 10.1103/PhysRevC.96.015504
2016RO10 Phys.Rev.Lett. 116, 192501 (2016) Unified Description of Electron-Nucleus Scattering within the Spectral Function Formalism NUCLEAR REACTIONS 12C(E, E'), E=0.680, 1.3 GeV; calculated σ(θ, E). Comparison with experimental data.
doi: 10.1103/PhysRevLett.116.192501
2016RO32 Phys.Rev. C 94, 065501 (2016) Comparison of the electromagnetic responses of 12C obtained from the Green's function Monte Carlo and spectral function approaches NUCLEAR REACTIONS 12C(e, e'), at momentum transfer q=300, 380, 570 MeV; analyzed and evaluated electromagnetic response function data in the longitudinal and transverse channels using the Green's function Monte Carlo (GFMC) and spectral function (SF) approaches.
doi: 10.1103/PhysRevC.94.065501
2015BE26 Phys.Rev. C 92, 024602 (2015) Contribution of two-particle-two-hole final states to the nuclear response NUCLEAR REACTIONS 4He(e, e'), E not given; 12C(e, e'), E=961 MeV; calculated transverse electromagnetic response, differential using state-of-the-art models of nuclear Hamiltonian and currents, within the Green's function Monte Carlo (GFMC) computational scheme; analyzed mechanisms of correlations in the initial and final states and coupling to meson exchange currents (MEC) which lead to the appearance of two-particle-two-hole final states. Comparison with experimental data. Relevance to experiments and analyses of MiniBooNE collaboration.
doi: 10.1103/PhysRevC.92.024602
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