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NSR database version of April 27, 2024.

Search: Author = K.Vobig

Found 8 matches.

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2020DA10      Phys.Rev. C 102, 011302 (2020)

A.D'Alessio, T.Mongelli, M.Arnold, S.Bassauer, J.Birkhan, I.Brandherm, M.Hilcker, T.Huther, J.Isaak, L.Jurgensen, T.Klaus, M.Mathy, P.von Neumann-Cosel, N.Pietralla, V.Yu.Ponomarev, P.C.Ries, R.Roth, M.Singer, G.Steinhilber, K.Vobig, V.Werner

Precision measurement of the E2 transition strength to the 2⁺₁ state of ¹²C

NUCLEAR REACTIONS ¹²C(e, e'), E=42.5 MeV; measured scattered E(e), I(e) using the LINTOTT spectrometer at the Darmstadt S-DALINAC facility; deduced form factor, B(E2) and quadrupole moment for the first 2+ state in ¹²C. Comparison in-medium no-core shell model (IM-NCSM) calculations with NLO to N³LO interactions, and with previous experimental results.

doi: 10.1103/PhysRevC.102.011302
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2020HE25      Phys.Lett. B 809, 135678 (2020)

S.Heil, M.Petri, K.Vobig, D.Bazin, J.Belarge, P.Bender, B.A.Brown, R.Elder, B.Elman, A.Gade, T.Haylett, J.D.Holt, T.Huther, A.Hufnagel, H.Iwasaki, N.Kobayashi, C.Loelius, B.Longfellow, E.Lunderberg, M.Mathy, J.Menendez, S.Paschalis, R.Roth, A.Schwenk, J.Simonis, I.Syndikus, D.Weisshaar, K.Whitmore

Electromagnetic properties of ²¹O for benchmarking nuclear Hamiltonians

NUCLEAR REACTIONS ⁹Be(²⁴F, ²¹O), E=95 MeV/nucleon; measured reaction products, Eγ, Iγ. ²¹O; deduced γ-ray energies, J, π, level T_1/2, B(E2). Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2020.135678
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2019EP01      Phys.Rev. C 99, 024313 (2019)

E.Epelbaum, J.Golak, K.Hebeler, T.Huther, H.Kamada, H.Krebs, P.Maris, Ulf-G.Meissner, A.Nogga, R.Roth, R.Skibinski, K.Topolnicki, J.P.Vary, K.Vobig, H.Witala, for the LENPIC Collaboration

Few- and many-nucleon systems with semilocal coordinate-space regularized chiral two- and three-body forces

NUCLEAR REACTIONS ²H(n, n), E=14.1, 70, 108, 135, 250 MeV; analyzed differential σ(θ); deduced low energy coefficients; calculated differential σ(θ), neutron analyzing powers A_y(θ), and deuteron vector and tensor analyzing powers using chiral effective field theory with semilocal coordinate-space regularized two- and three-nucleon forces. Comparison with experimental data.

NUCLEAR STRUCTURE ^4,6,8He, ^6,7,8,9Li, ^8,9,10Be, ^10,11,12B, ¹²C, ¹⁶O; calculated ground state binding energies, and excitation energies using chiral N²LO interactions.

doi: 10.1103/PhysRevC.99.024313
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2019TI04      Phys.Rev. C 99, 034321 (2019)

A.Tichai, J.Muller, K.Vobig, R.Roth

Natural orbitals for ab initio no-core shell model calculations

NUCLEAR STRUCTURE ⁴He, ¹²C, ^{14,15,16,17,18,19,20,21,22,23,24,25,26}O; calculated squared radial wave functions of different single particle orbits in ¹⁶O, ground state energies and point-proton radii of ⁴He and ¹⁶O, ground state energies of ¹⁴O to ²⁶O nuclei, and levels, quadrupole moment, B(E2), and B(M1) of ¹²C using ab initio no-core shell model (NCSM) calculations with natural-orbital, Hartree-Fock, and harmonic oscillator bases.

doi: 10.1103/PhysRevC.99.034321
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2018BI08      Phys.Rev. C 98, 014002 (2018)

S.Binder, A.Calci, E.Epelbaum, R.J.Furnstahl, J.Golak, K.Hebeler, T.Huther, H.Kamada, H.Krebs, P.Maris, Ulf-G.Meissner, A.Nogga, R.Roth, R.Skibinski, K.Topolnicki, J.P.Vary, K.Vobig, H.Witala, at the LENPIC Collaboration

Few-nucleon and many-nucleon systems with semilocal coordinate-space regularized chiral nucleon-nucleon forces

NUCLEAR REACTIONS ²H(n, n), E=5, 10, 14.1 MeV; ²H(n, 2np), E=13, 65 MeV; calculated differential σ(θ), A_y analyzing powers, nucleon and deuteron vector analyzing powers, phase shifts, polarization-transfer coefficient, breakup cross sections, and pd analyzing powers.

NUCLEAR STRUCTURE ³H, ^3,4He, ⁶Li; calculated binding energies, ground-state energies of ⁴He and ⁶Li, proton rms radii. ³H, ^4,6,8He, ^6,7,8,9Li, ^8,9Be, ¹⁰B, ^16,24O, ^40,48Ca; calculated ground state energies. ³H, ³He, ^6,7,8,9Li, ^7,9Be, ^8,9,10B, ⁹C; calculated magnetic dipole moments. ^16,24O, ^40,48Ca; calculated charge radii. Faddeev-Yakubovsky equations, with no-core configuration interaction approach, coupled-cluster (CC) theory, and in-medium similarity renormalization group (IM-SRG)methods with SCS chiral nucleon-nucleon (NN) potentials. Comparison with experimental values, and with other theoretical predictions.

doi: 10.1103/PhysRevC.98.014002
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2018TI08      Phys.Lett. B 786, 448 (2018)

A.Tichai, E.Gebrerufael, K.Vobig, R.Roth

Open-shell nuclei from No-Core Shell Model with perturbative improvement

NUCLEAR STRUCTURE ^6,7Li, ^{10,11,12,13,14,15,16,17,18,19,20}C, ^{16,17,18,19,20,21,22,23,24,25,26}O, ^{17,18,19,20,21,22,23,24,25,26,27,28,29,30,31}F; calculated ground-state energies, excitation spectra, J, π. Comparison with available data.

doi: 10.1016/j.physletb.2018.10.029
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2017GE02      Phys.Rev.Lett. 118, 152503 (2017)

E.Gebrerufael, K.Vobig, H.Hergert, R.Roth

Ab Initio Description of Open-Shell Nuclei: Merging No-Core Shell Model and In-Medium Similarity Renormalization Group

NUCLEAR STRUCTURE ¹²C, ²⁰O; calculated ground-state energies, level energies, J, π. Comparison with experimental data.

doi: 10.1103/PhysRevLett.118.152503
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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
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