NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = J.Langhammer Found 21 matches. 2016BI06 Phys.Rev. C 93, 044002 (2016) S.Binder, A.Calci, E.Epelbaum, R.J.Furnstahl, J.Golak, K.Hebeler, H.Kamada, H.Krebs, J.Langhammer, S.Liebig, P.Maris, Ulf-G.Meissner, D.Minossi, A.Nogga, H.Potter, R.Roth, R.Skibinski, K.Topolnicki, J.P.Vary, H.Witala, for the LENPIC Collaboration Few-nucleon systems with state-of-the-art chiral nucleon-nucleon forces NUCLEAR STRUCTURE 3H, 4He, 6Li; calculated energies of ground-state and lowest two states, point-proton radius using improved NN chiral potentials LO, NLO, N2LO, N3LO and N4LO. Comparison with experimental data. NUCLEAR REACTIONS 3H, 4He, 6Li(d, X), (polarized d, d), E=10, 70, 135, 200 MeV; total σ(E), differential cross section and tensor analyzing powers for elastic scattering based on NN chiral potentials LO, NLO, N2LO, N3LO and N4LO. Comparison with experimental data.
doi: 10.1103/PhysRevC.93.044002
2015LA04 Phys.Rev. C 91, 021301 (2015) J.Langhammer, P.Navratil, S.Quaglioni, G.Hupin, A.Calci, R.Roth Continuum and three-nucleon force effects on 9Be energy levels NUCLEAR STRUCTURE 9Be; calculated n-8Be phase shifts and eigenphase shifts for negative parity, levels, J, π relative to the n-8Be threshold. Calculations based on ab initio no-core shell model with continuum to include three-nucleon (3N) interactions.
doi: 10.1103/PhysRevC.91.021301
2015SM03 Phys.Rev. C 92, 064314 (2015) D.Smalley, H.Iwasaki, P.Navratil, R.Roth, J.Langhammer, V.M.Bader, D.Bazin, J.S.Berryman, C.M.Campbell, J.Dohet-Eraly, P.Fallon, A.Gade, C.Langer, A.Lemasson, C.Loelius, A.O.Macchiavelli, C.Morse, J.Parker, S.Quaglioni, F.Recchia, S.R.Stroberg, D.Weisshaar, K.Whitmore, K.Wimmer Lifetime measurements of 17C excited states and three-body and continuum effects NUCLEAR REACTIONS 9Be(18C, 17C), E=74.2 MeV/nucleon, [secondary 18C beam from 9Be(22Ne, X), E=120 MeV/nucleon primary reaction using A1900 fragment separator at NSCL-MSU]; measured one-neutron knockout reaction products, Eγ, Iγ, (particle)γ-coin using GRETINA array for γ rays, and S800 spectrograph for particles, level half-lives using RDM method and a plunger device. 17C; deduced levels, J, π, B(M1). Comparison with importance-truncated no-core shell model (IT-NCSM), and importance-truncated no-core shell model with continuum (IT-NCSMC) calculations.
doi: 10.1103/PhysRevC.92.064314
2014BI14 Phys.Lett. B 736, 119 (2014) S.Binder, J.Langhammer, A.Calci, R.Roth Ab initio path to heavy nuclei NUCLEAR STRUCTURE 16,24O, 36,40,48,52,54Ca, 48,56,60,62,66,68,78Ni, 90Zr, 100,106,108,114,116,118,120,132Sn; calculated ground state energies in ab initio approaches based on chiral Hamiltonian.
doi: 10.1016/j.physletb.2014.07.010
2014BO25 Phys.Rev.Lett. 113, 142501 (2014) S.K.Bogner, H.Hergert, J.D.Holt, A.Schwenk, S.Binder, A.Calci, J.Langhammer, R.Roth Nonperturbative Shell-Model Interactions from the In-Medium Similarity Renormalization Group NUCLEAR STRUCTURE 21,22,23,24,25,26O; calculated energy levels, J, π. Comparison with experimental data.
doi: 10.1103/PhysRevLett.113.142501
2014GO30 Eur.Phys.J. A 50, 177 (2014) J.Golak, R.Skibinski, K.Topolnicki, H.Witala, E.Epelbaum, H.Krebs, H.Kamada, Ulf-G.Meissner, V.Bernard, P.Maris, J.Vary, S.Binder, A.Calci, K.Hebeler, J.Langhammer, R.Roth, A.Nogga, S.Liebig, D.Minossi Low-energy neutron-deuteron reactions with N3LO chiral forces NUCLEAR REACTIONS 2H(n, n), E=6.5, 10 MeV; calculated analyzing power. 2H(n, x), E=13.0 MeV; calculated σ(θ). Three-nucleon Faddeev equations with different N3LO chiral forces. Compared to data.
doi: 10.1140/epja/i2014-14177-7
2014HE23 Phys.Rev. C 90, 041302 (2014) H.Hergert, S.K.Bogner, T.D.Morris, S.Binder, A.Calci, J.Langhammer, R.Roth Ab initio multireference in-medium similarity renormalization group calculations of even calcium and nickel isotopes NUCLEAR STRUCTURE 34,36,38,40,42,44,46,48,50,52,54,56,58,60,62Ca, 48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,90Ni; calculated ground state energies, and S(2n) using multireference in-medium similarity renormalization group based on NN+3N nucleon interactions from chiral effective field theory. Comparison with other calculations and experimental results.
doi: 10.1103/PhysRevC.90.041302
2014HU17 Few-Body Systems 55, 1013 (2014) G.Hupin, S.Quaglioni, J.Langhammer, P.Navratil, A.Calci, R.Roth Progress on Light-Ion Fusion Reactions with Three-Nucleon Forces NUCLEAR REACTIONS 4He(n, n), E<16 MeV; calculated σ(θ), phase shifts. Comparison with available data.
doi: 10.1007/s00601-013-0800-4
2014MA47 Phys.Rev. C 90, 014314 (2014) P.Maris, J.P.Vary, A.Calci, J.Langhammer, S.Binder, R.Roth 12C properties with evolved chiral three-nucleon interactions NUCLEAR STRUCTURE 12C; calculated levels, J, π, point-proton rms radii, quadrupole moments, B(E2), B(M1) using ab initio no-core shell model (NCSM), important truncated no-core shell model (IT-NCSM) methods with similarity renormalization group (SRG) involved chiral NN + 3N Hamiltonians. Comparison with experimental data.
doi: 10.1103/PhysRevC.90.014314
2014RO18 Phys.Rev. C 90, 024325 (2014) R.Roth, A.Calci, J.Langhammer, S.Binder Evolved chiral NN+3N Hamiltonians for ab initio nuclear structure calculations NUCLEAR STRUCTURE 4He, 7Li, 8,10Be, 12,14C, 16O; calculated ground state energies, level spectrum for 12C. Inclusion of Chiral NN+3N interactions into ab initio nuclear structure calculations. Similarity renormalization group (SRG) evolution in the 3N sector. JT-coupled storage scheme for 3N matrix elements with on-the-fly decoupling. Importance of truncated no-core shell model with 3N interactions.
doi: 10.1103/PhysRevC.90.024325
2014RO22 Few-Body Systems 55, 659 (2014) R.Roth, A.Calci, J.Langhammer, S.Binder Ab Initio Nuclear Structure Theory: From Few to Many NUCLEAR STRUCTURE 12,16,18C; calculated energy levels, J, π, ground state energies. IT-NCSM calculations.
doi: 10.1007/s00601-014-0860-0
2014WI05 Phys.Rev.Lett. 113, 192502 (2014) R.Wirth, D.Gazda, P.Navratil, A.Calci, J.Langhammer, R.Roth AbĀInitio Description of p-Shell Hypernuclei NUCLEAR STRUCTURE 7Li, 9Be, 13C; calculated ground-state energy of s-shell hypernuclei, absolute and excitation energies.
doi: 10.1103/PhysRevLett.113.192502
2013BI01 Phys.Rev. C 87, 021303 (2013) S.Binder, J.Langhammer, A.Calci, P.Navratil, R.Roth Ab initio calculations of medium-mass nuclei with explicit chiral 3N interactions NUCLEAR STRUCTURE 16,24O, 40,48Ca, 56Ni; calculated ground-state energies as functions of different parameters. Ab initio coupled-cluster calculations with chiral three-nucleon (3N) interactions.
doi: 10.1103/PhysRevC.87.021303
2013BI13 Phys.Rev. C 88, 054319 (2013) S.Binder, P.Piecuch, A.Calci, J.Langhammer, P.Navratil, R.Roth Extension of coupled-cluster theory with a noniterative treatment of connected triply excited clusters to three-body Hamiltonians NUCLEAR STRUCTURE 16,24O, 40Ca; calculated total binding energies using coupled-cluster (CC) approach with singles, doubles, and the noniterative treatment of triples and chiral NN interaction at N3LO. Role of residual normal-ordered three-body contributions.
doi: 10.1103/PhysRevC.88.054319
2013HE07 Phys.Rev. C 87, 034307 (2013) H.Hergert, S.K.Bogner, S.Binder, A.Calci, J.Langhammer, R.Roth, A.Schwenk In-medium similarity renormalization group with chiral two- plus three-nucleon interactions NUCLEAR STRUCTURE 4He, 16,24O, 40,48Ca, 48,56Ni; calculated ground states energies, and binding energies using the in-medium similarity renormalization group (IM-SRG), based on chiral two- plus three-nucleon interactions. Comparison with coupled cluster calculations, truncated no-core shell model, and with experimental data.
doi: 10.1103/PhysRevC.87.034307
2013HE15 Phys.Rev.Lett. 110, 242501 (2013) H.Hergert, S.Binder, A.Calci, J.Langhammer, R.Roth Ab Initio Calculations of Even Oxygen Isotopes with Chiral Two-Plus-Three-Nucleon Interactions NUCLEAR STRUCTURE 14,16,18,20,22,24,26O; calculated ground-state energies and their uncertainties. In-medium similarity renormalization group (IM-SRG) for open-shell nuclei using a multireference formalism based on a generalized Wick theorem introduced in quantum chemistry. The resulting multireference IM-SRG(MR-IM-SRG) is used to perform the first ab initio study.
doi: 10.1103/PhysRevLett.110.242501
2013HU10 Phys.Rev. C 88, 054622 (2013) G.Hupin, J.Langhammer, P.Navratil, S.Quaglioni, A.Calci, R.Roth Ab initio many-body calculations of nucleon-4He scattering with three-nucleon forces NUCLEAR REACTIONS 4He(n, n), E=11, 15 MeV; 4He(p, p), E=5.95, 9.89, 7.89, 11.99 MeV; calculated scattering differential σ(E, θ), and analyzing powers. No-core shell model combined with resonating-group method (NCSM/RGM) including three-nucleon (3N) interactions. Algebraic expressions for 3N-force integration kernels. Comparison with experimental data.
doi: 10.1103/PhysRevC.88.054622
2012LA27 Phys.Rev. C 86, 054315 (2012) J.Langhammer, R.Roth, C.Stumpf Spectra of open-shell nuclei with Pade-resummed degenerate perturbation theory NUCLEAR STRUCTURE 6,7Li; calculated level energies using degenerate many-body perturbation theory. Pade approximation. Recursive formulation. Comparison with no-core shell-model calculations.
doi: 10.1103/PhysRevC.86.054315
2012RO19 Phys.Rev.Lett. 109, 052501 (2012) R.Roth, S.Binder, K.Vobig, A.Calci, J.Langhammer, P.Navratil Medium-Mass Nuclei with Normal-Ordered Chiral NN+3N Interactions NUCLEAR STRUCTURE 4He, 16,24O, 40,48Ca; calculated ground-state energies. NO2B approximation, chiral NN+3N hamiltonians.
doi: 10.1103/PhysRevLett.109.052501
2012RO31 Prog.Theor.Phys.(Kyoto), Suppl. 196, 131 (2012) R.Roth, J.Langhammer, A.Calci, S.Binder, P.Navratil Ab Initio Nuclear Structure Theory with Chiral NN+3N Interactions NUCLEAR STRUCTURE 12C, 16O; calculated ground state energies, level scheme, J, π.
doi: 10.1143/PTPS.196.131
2011RO32 Phys.Rev.Lett. 107, 072501 (2011) R.Roth, J.Langhammer, A.Calci, S.Binder, P.Navratil Similarity-Transformed Chiral NN + 3N Interactions for the Ab Initio Description of 12C and 16O NUCLEAR STRUCTURE 4He, 6Li, 12C, 16O; calculated ground-state energies, lowest-energy states, J, π. Ab initio no-core shell model (NCSM).
doi: 10.1103/PhysRevLett.107.072501
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