NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = J.Wambach Found 164 matches. Showing 1 to 100. [Next]2019PO09 Eur.Phys.J. A 55, 236 (2019) V.Yu.Ponomarev, D.H.Jakubassa-Amundsen, A.Richter, J.Wambach Excitation of the electric pygmy dipole resonance by inelastic electron scattering
doi: 10.1140/epja/i2019-12784-4
2019TR03 Nucl.Phys. A982, 775c (2019) R.-A.Tripolt, C.Jung, N.Tanji, L.von Smekal, J.Wambach In-medium spectral functions and dilepton rates with the Functional Renormalization Group
doi: 10.1016/j.nuclphysa.2018.08.017
2019VO14 Eur.Phys.J. A 55, 224 (2019) P.von Neumann-Cosel, V.Yu.Ponomarev, A.Richter, J.Wambach Gross, intermediate and fine structure of nuclear giant resonances: Evidence for doorway states
doi: 10.1140/epja/i2019-12795-1
2016BI05 Phys.Rev. C 93, 041302 (2016) J.Birkhan, H.Matsubara, P.von Neumann-Cosel, N.Pietralla, V.Yu.Ponomarev, A.Richter, A.Tamii, J.Wambach Electromagnetic M1 transition strengths from inelastic proton scattering: The cases of 48Ca and 208Pb NUCLEAR REACTIONS 48Ca(p, p'), E=295 MeV; analyzed σ(θ) for dominating peak at 10.23 MeV ascribed to isovector spin-flip M1 (IVSM1) resonance; deduced B(M1) using a method based on isospin symmetry. Comparison with B(M1) deduced from (p, p') at 201 MeV, (p, n) at 295 MeV, (e, e') and (γ, n) data. 208Pb(p, p'), (n, n'γ), (polarized γ, γ'); analyzed B(M1) strengths in 6.5-9 MeV excitation region. Quenching phenomenon of the spin-isospin response. Method for extracting systematic information on the IVSM1 resonances in heavy nuclei.
doi: 10.1103/PhysRevC.93.041302
2016DZ02 Phys.Rev. C 94, 015805 (2016) A.A.Dzhioev, A.I.Vdovin, G.Martinez-Pinedo, J.Wambach, Ch.Stoyanov Thermal quasiparticle random-phase approximation with Skyrme interactions and supernova neutral-current neutrino-nucleus reactions NUCLEAR REACTIONS 56Fe, 82Ge(ν, ν'), E<20 MeV; calculated inelastic neutral-current neutrino scattering σ(E) at supernova conditions, normalized spectra of outgoing neutrinos, normalized spectra of neutrino-antineutrino pairs, energy centroid for the spectrum of emitted neutrinos as a function of temperature. 56Fe, 82Ge; calculated ground-state and total GT0 strength distributions, energy centroid for the upward GT0 strength functions as function of temperature. Thermal quasiparticle random-phase approximation combined with the Skyrme energy density functional method (Skyrme-TQRPA). Comparison with results from hybrid approach of shell-model and RPA calculations.
doi: 10.1103/PhysRevC.94.015805
2015DZ04 Phys.Rev. C 92, 045804 (2015) A.A.Dzhioev, A.I.Vdovin, J.Wambach Neutrino absorption by hot nuclei in supernova environments NUCLEAR REACTIONS 56Fe, 82Ge(ν, e-), (ν-bar, e+), E<50 MeV; calculated σ(E) for neutrino and antineutrino absorption reactions in supernova environments, strength distribution of allowed Gamow-Teller (GT) transitions using proton-neutron QRPA extended to finite temperatures within the thermofield dynamics (TFD) formalism. Comparison with other theoretical calculations.
doi: 10.1103/PhysRevC.92.045804
2014BE05 Phys.Rev. C 89, 024314 (2014) W.Bentz, A.Arima, A.Richter, J.Wambach Analytic approach to nuclear rotational states and the role of spin: A minimal model
doi: 10.1103/PhysRevC.89.024314
2014DZ01 Phys.Rev. C 89, 035805 (2014) A.A.Dzhioev, A.I.Vdovin, J.Wambach, V.Yu.Ponomarev Inelastic neutrino scattering off hot nuclei in supernova environments NUCLEAR REACTIONS 56Fe, 82Ge(ν, ν'), E<60 MeV; calculated finite temperature σ(E) accounting for allowed and forbidden transitions by thermal QRPA, temperature evolution of Gamow-Teller (GT) strengths. Comparison with hybrid large-scale shell-model and RPA calculations.
doi: 10.1103/PhysRevC.89.035805
2014WA30 Nucl.Phys. A928, 156 (2014) J.Wambach, R.-A.Tripolt, N.Strodthoff, L.von Smekal Spectral functions from the functional renormalization group
doi: 10.1016/j.nuclphysa.2014.04.027
2013MU09 Eur.Phys.J. A 49, 96 (2013) D.Muller, M.Buballa, J.Wambach Dyson-Schwinger approach to color superconductivity at finite temperature and density
doi: 10.1140/epja/i2013-13096-5
2012DA18 J.Phys.:Conf.Ser. 366, 012008 (2012) M.Danchev, G.Rainovski, N.Pietralla, A.Gargano, A.Covello, C.Baktash, J.R.Beene, C.R.Bingham, A.Galindo-Uribarri, K.A.Gladnishki, C.J.Gross, V.Yu.Ponomarev, D.C.Radford, L.L.Riedinger, M.Scheck, A.E.Stuchbery, J.Wambach, C.-H.Yu, N.V.Zamfir One-phonon isovector 2+1, MS state in the neutron rich nucleus 132Te NUCLEAR REACTIONS 12C(132Te, 132Te'), E=3 MeV/nucleon; measured thick target Coulomb excitation Eγ, Iγ, γγ-coin using CLARION array, 12C ions using HyBall, (12C)γ-coin; deduced Doppler corrected γ ray spectrum, σ to discrete states, B(E2), B(M1), μ for discrete transitions; calculated B(E2), B(M1), μ using shell model and one-phonon MSS (Mixed-Symmetry State); deduced 2+2 as one-phonon MSS.
doi: 10.1088/1742-6596/366/1/012008
2012HE18 Eur.Phys.J. A 48, 142 (2012) K.Heckmann, M.Buballa, J.Wambach Chiral restoration effects on the shear viscosity of a pion gas
doi: 10.1140/epja/i2012-12142-2
2012PI18 J.Phys.:Conf.Ser. 366, 012037 (2012) N.Pietralla, C.Walz, V.Y.Ponomarev, H.Fujita, A.Krugmann, P.von Neumann-Cosel, A.Scheikh-Obeid, J.Wambach Direct Evidence for Proton-Neutron Out-of-Phase Coupling in Mixed-Symmetry States from Scattering Experiments on 92Zr NUCLEAR REACTIONS 92Zr(p, p'), E=800 MeV;92Zr(e, e'), E=63 MeV; measured reaction products; deduced σ(q) vs momentum transfer; calculated σ(q) vs momentum transfer using QPM; deduced formation of low-lying quadrupole collective structures.
doi: 10.1088/1742-6596/366/1/012037
2012PO07 Phys.Rev. C 85, 041304 (2012) I.Poltoratska, P.von Neumann-Cosel, A.Tamii, T.Adachi, C.A.Bertulani, J.Carter, M.Dozono, H.Fujita, K.Fujita, Y.Fujita, K.Hatanaka, M.Itoh, T.Kawabata, Y.Kalmykov, A.M.Krumbholz, E.Litvinova, H.Matsubara, K.Nakanishi, R.Neveling, H.Okamura, H.J.Ong, B.Ozel-Tashenov, V.Yu.Ponomarev, A.Richter, B.Rubio, H.Sakaguchi, Y.Sakemi, Y.Sasamoto, Y.Shimbara, Y.Shimizu, F.D.Smit, T.Suzuki, Y.Tameshige, J.Wambach, M.Yosoi, J.Zenihiro Pygmy dipole resonance in 208Pb NUCLEAR REACTIONS 208Pb(p, p'), E=295 MeV; measured Ep, Ip, σ(θ). 208Pb; deduced levels, J, π, PDR, σ(E1), σ(M1), B(E1). Multipole decomposition analysis based on DWBA calculations. Comparison with quasiparticle-phonon model (QPM), relativistic time-blocking approximation (RTBA), and shell model calculations. Separation of PDR and GDR strength with Coulomb-nuclear interference.
doi: 10.1103/PhysRevC.85.041304
2012RA32 J.Phys.:Conf.Ser. 381, 012047 (2012) G.Rainovski, M.Danchev, N.Pietralla, A.Gargano, A.Covello, C.Baktash, J.R.Beene, C.R.Bingham, A.Galindo-Uribarri, K.A.Gladnishki, C.J.Gross, V.Yu.Ponomarev, D.C.Radford, L.L.Riedinger, M.Scheck, A.E.Stuchbery, J.Wambach, C.-H.Yu, N.V.Zamfir On the origin of low-lying M1 strength in even-even nuclei NUCLEAR REACTIONS 12C(132Te, 132Te'), E=3 MeV/nucleon; measured thick target Coulomb excitation Eγ, Iγ using CLARION array, scattered ions using HyBall array; deduced B(E2), B(M1); calculated 132Te low-lying levels, J, π.
doi: 10.1088/1742-6596/381/1/012047
2012US02 J.Phys.:Conf.Ser. 337, 012034 (2012) I.Usman, Z.Buthelezi, J.Carter, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, H.Fujita, Y.Kalmykov, P.von Neumann-Cosel, R.Neveling, I.Poltoratska, A.Richter, A.Shevchenko, E.Sideras-Haddad, F.D.Smit, J.Wambach 2+ level densities in 40Ca extracted from high energy-resolution (p, p') experiments NUCLEAR REACTIONS 40Ca(p, p'), E=200 MeV; measured reaction products; deduced σ(θ, E), autocorrelation function, level density with specified J, π; calculated density with specified J, π using BSFG, HFB and HF-BCS.
doi: 10.1088/1742-6596/337/1/012034
2011BE24 Phys.Rev. C 84, 014327 (2011) W.Bentz, A.Arima, J.Enders, A.Richter, J.Wambach Rotational states in deformed nuclei: An analytic approach
doi: 10.1103/PhysRevC.84.014327
2011DA21 Phys.Rev. C 84, 061306 (2011) M.Danchev, G.Rainovski, N.Pietralla, A.Gargano, A.Covello, C.Baktash, J.R.Beene, C.R.Bingham, A.Galindo-Uribarri, K.A.Gladnishki, C.J.Gross, V.Yu.Ponomarev, D.C.Radford, L.L.Riedinger, M.Scheck, A.E.Stuchbery, J.Wambach, C.-H.Yu, N.V.Zamfir One-phonon isovector 2+1, MS state in the neutron-rich nucleus 132Te NUCLEAR REACTIONS 12C(132Te, 132Te'), E=3 MeV/nucleon; measured Eγ, Iγ, (12C recoils)γ-coin using CLARION array and HyBall. 132Te; deduced levels, one-phonon mixed-symmetry state (MSS) B(E2), B(M1) values for first 2+ states. Coulomb excitation. Comparison with previous measurements and shell-model calculations. 132,134,136Te; reanalyzed B(E2) values for first 2+ states from an earlier experiment in 2002. NUCLEAR MOMENTS 132Te; reanalyzed g factor from an earlier experiment in 2005. NUCLEAR STRUCTURE 132Te; calculated levels, J, π, B(E2) using shell model. Comparison with experimental data.
doi: 10.1103/PhysRevC.84.061306
2011PA12 Eur.Phys.J. A 47, 14 (2011) P.Papakonstantinou, V.Yu.Ponomarev, R.Roth, J.Wambach Isoscalar dipole coherence at low energies and forbidden E1 strength NUCLEAR STRUCTURE 16O, 40Ca, 56Ni, 100Sn; calculated ISD, E1 response, GDR peak energy, B(E1), γ transition strengths, transition densities using RPA with finite-range forces.
doi: 10.1140/epja/i2011-11014-7
2011TA18 Phys.Rev.Lett. 107, 062502 (2011) A.Tamii, I.Poltoratska, P.von Neumann-Cosel, Y.Fujita, T.Adachi, C.A.Bertulani, J.Carter, M.Dozono, H.Fujita, K.Fujita, K.Hatanaka, D.Ishikawa, M.Itoh, T.Kawabata, Y.Kalmykov, A.M.Krumbholz, E.Litvinova, H.Matsubara, K.Nakanishi, R.Neveling, H.Okamura, H.J.Ong, B.Ozel-Tashenov, B.Rubio, H.Sakaguchi, Y.Sakemi, Y.Sasamoto, Y.Shimbara, Y.Shimizu, V.Yu.Ponomarev, A.Richter, F.D.Smit, T.Suzuki, Y.Tameshige, J.Wambach, R.Yamada, M.Yosoi, J.Zenihiro Complete Electric Dipole Response and the Neutron Skin in 208Pb NUCLEAR REACTIONS 208Pb(p, p'), E<20 MeV; measured reaction products, proton spectra; deduced electric dipole (E1) and spin magnetic dipole (M1) modes, E1 strength distribution, neutron skin thickness. Comparison with experimental data.
doi: 10.1103/PhysRevLett.107.062502
2011US03 Phys.Rev. C 84, 054322 (2011) I.Usman, Z.Buthelezi, J.Carter, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, H.Fujita, Y.Kalmykov, P.von Neumann-Cosel, R.Neveling, I.Poltoratska, A.Richter, A.Shevchenko, E.Sideras-Haddad, F.D.Smit, J.Wambach Level density of 2+ states in 40Ca from high-energy-resolution (p, p') experiments NUCLEAR REACTIONS 40Ca(p, p'), E=200 MeV; measured E(p), I(p), double differential σ, σ(θ); deduced excitation energy, level density for 2+ states in the ISGQR region; analyzed fine structure of ISGQR. Fluctuation analysis. Comparison with backshifted Fermi gas and microscopic HF-BCS and HFB models.
doi: 10.1103/PhysRevC.84.054322
2011WA01 Phys.Rev.Lett. 106, 062501 (2011) C.Walz, H.Fujita, A.Krugmann, P.von Neumann-Cosel, N.Pietralla, V.Yu.Ponomarev, A.Scheikh-Obeid, J.Wambach Origin of Low-Energy Quadrupole Collectivity in Vibrational Nuclei NUCLEAR STRUCTURE 92Zr; calculated B(E2), B(M1), magnetic moments, momentum transfer, σ(θ); deduced formation of the collective symmetric and mixed-symmetric states.. Comparison with experimental data.
doi: 10.1103/PhysRevLett.106.062501
2010DA08 Phys.Rev. C 81, 035803 (2010) H.Dapo, B.-J.Schaefer, J.Wambach Appearance of hyperons in neutron stars
doi: 10.1103/PhysRevC.81.035803
2010DZ02 Phys.Rev. C 81, 015804 (2010) A.A.Dzhioev, A.I.Vdovin, V.Yu.Ponomarev, J.Wambach, K.Langanke, G.Martinez-Pinedo Gamow-Teller strength distributions at finite temperatures and electron capture in stellar environments NUCLEAR STRUCTURE 54,56Fe, 76,78,80Ge; calculated Gammow-Teller strength distributions, electron capture rates, strength distributions for first forbidden transitions, and occupation numbers in hot nuclei in stellar environments using thermal quasiparticle random-phase approximation (TQRPA) model. Comparison with experimental data and large-scale shell-model (LSSM) calculations.
doi: 10.1103/PhysRevC.81.015804
2009DZ01 Bull.Rus.Acad.Sci.Phys. 73, 225 (2009); Izv.Akad.Nauk RAS, Ser.Fiz. 73, 236 (2009) A.A.Dzhioev, A.I.Vdovin, V.Yu.Ponomarev, J.Wambach Thermal effects on electron capture for neutron-rich nuclei RADIOACTIVITY 76Ge(EC); calculated electron capture cross sections as a function of electron energy.
doi: 10.3103/S106287380902021X
2009DZ03 Phys.Atomic Nuclei 72, 1320 (2009); Yad.Fiz. 72, 1373 (2009) A.A.Dzhioev, A.I.Vdovin, V.Yu.Ponomarev, J.Wambach Charge-exchange transitions in hot nuclei NUCLEAR STRUCTURE 80Ge; calculated single-particle wave functions and energies, strength distribution S(E) of allowed pn transitions.
doi: 10.1134/S1063778809080079
2009SH19 Phys.Rev. C 79, 044305 (2009) A.Shevchenko, O.Burda, J.Carter, G.R.J.Cooper, R.W.Fearick, S.V.Fortsch, H.Fujita, Y.Fujita, Y.Kalmykov, D.Lacroix, J.J.Lawrie, P.von Neumann-Cosel, R.Neveling, V.Yu.Ponomarev, A.Richter, E.Sideras-Haddad, F.D.Smit, J.Wambach Global investigation of the fine structure of the isoscalar giant quadrupole resonance NUCLEAR REACTIONS 58Ni, 89Y, 90Zr, 120Sn, 142Nd, 166Er, 208Pb(p, p'), E=200 MeV; measured proton spectra, angular distributions; deduced isoscalar giant quadrupole resonance (ISGQR) and associated E2 strength functions. Wavelet analysis. Comparisons with quasiparticle-phonon model (QPM), extended time-dependent Hartree-Fock method (ETDHF), random-phase approximation (RPA) and extended theory of finite Fermi systems (ETFFS).
doi: 10.1103/PhysRevC.79.044305
2008DA08 Eur.Phys.J. A 36, 101 (2008) H.Dapo, B.-J.Schaefer, J.Wambach Hyperon-nucleon single-particle potentials with low-momentum interactions
doi: 10.1140/epja/i2008-10542-5
2008DZ02 Bull.Rus.Acad.Sci.Phys. 72, 269 (2008); Izv.Akad.Nauk RAS, Ser.Fiz. 72, 294 (2008) A.A.Dzhioev, A.I.Vdovin, V.Yu.Ponomarev, J.Wambach Gamow-Teller resonance in hot nuclei and astrophysical applications NUCLEAR STRUCTURE 56Fe; calculated EC and β- decay rates at stellar temperatures.
doi: 10.3103/S1062873808030015
2008PA07 Phys.Rev. C 77, 044305 (2008) P.K.Papachristou, E.Mavrommatis, V.Constantoudis, F.K.Diakonos, J.Wambach Nonlinear classical model for the decay widths of isoscalar giant monopole resonances NUCLEAR STRUCTURE 90Zr, 112,116,124Sn, 144Sm, 208Pb; calculated excitation energies, decay widths of isoscalar giant monopole resonance (ISGMR). 132Sn; predicted decay width.
doi: 10.1103/PhysRevC.77.044305
2008SH07 Phys.Rev. C 77, 024302 (2008) A.Shevchenko, J.Carter, G.R.J.Cooper, R.W.Fearick, Y.Kalmykov, P.von Neumann-Cosel, V.Yu.Ponomarev, A.Richter, I.Usman, J.Wambach Analysis of fine structure in the nuclear continuum NUCLEAR REACTIONS 208Pb(p, p'), E=200 MeV; analyzed excitation energies to investigate fine structure.
doi: 10.1103/PhysRevC.77.024302
2007BU23 Phys.Rev.Lett. 99, 092503 (2007) O.Burda, N.Botha, J.Carter, R.W.Fearick, S.V.Fortsch, C.Fransen, H.Fujita, J.D.Holt, M.Kuhar, A.Lenhardt, P.von Neumann-Cosel, R.Neveling, N.Pietralla, V.Yu.Ponomarev, A.Richter, O.Scholten, E.Sideras-Haddad, F.D.Smit, J.Wambach High-Energy-Resolution Inelastic Electron and Proton Scattering and the multiphonon Nature of Mixed-Symmetry 2+ States in 94Mo NUCLEAR REACTIONS 94Mo(e, e'), E=70 MeV; 94Mo(p, p'), E=200 MeV; measured σ and excitation strengths. Compared results to model calculations.
doi: 10.1103/PhysRevLett.99.092503
2007FU12 Nucl.Phys. A788, 94c (2007) H.Fujita, N.T.Botha, O.Burda, J.Carter, R.W.Fearick, S.V.Fortsch, C.Fransen, M.Kuhar, A.Lenhardt, P.von Neumann-Cosel, R.Neveling, N.Pietralla, V.Yu.Ponomarev, A.Richter, O.Scholten, E.Sideras-Haddad, F.D.Smit, J.Wambach One- and two-phonon mixed-symmetry states in 94Mo in high-resolution electron and proton scattering NUCLEAR REACTIONS 94Mo(e, e'), E=70 MeV; 94Mo(p, p')E=200 MeV; measured excitation energy spectra; deduced mixed-symmetry state features. Comparison with shell model, quasiparticle phonon model and interacting boson model.
doi: 10.1016/j.nuclphysa.2007.01.053
2007HO13 Phys.Rev. C 76, 014314 (2007) F.Hofmann, C.Baumer, A.M.van den Berg, D.Frekers, V.M.Hannen, M.N.Harakeh, M.de Huu, Y.Kalmykov, P.von Neumann-Cosel, V.Yu.Ponomarev, S.Rakers, B.Reitz, A.Richter, K.Schweda, A.Shevchenko, J.Wambach, H.J.Wortche Proton scattering at intermediate energies on 58Ni: How well is it understood? NUCLEAR REACTIONS 58Ni(p, p'), E=172 MeV; measured cross sections, spin flip cross sections and spin-flip probabilities. Compared results to model calculations.
doi: 10.1103/PhysRevC.76.014314
2007KA46 Nucl.Phys. A788, 136c (2007) Y.Kalmykov, K.Langanke, G.Martinez-Pinedo, D.Mocelj, P.von Neumann-Cosel, I.Poltoratska, V.Yu.Ponomarev, A.Richter, A.Shevchenko, J.Wambach Spin- and Parity-Resolved Level Densities from High-Resolution Hadron and Electron Scattering Studies of Giant Resonances NUCLEAR REACTIONS 90Zr(3He, t), E=140 MeV/nucleon; 90Zr(e, e'), E=42.5, 66.4, 82.3 MeV; 90Zr(p, p'), E=200 MeV; analyzed excitation energy spectra. 90Zr, 90Nb deduced Gamow-Teller resonance and GQR energies and level densities. 58Ni(3He, t), (e, e'), (p, p'), E not given; analyzed excitation energy spectra. 58Ni, 58Cu deduced level densities. Discrete wavelet transform and fluctuation analysis, back-shifted Fermi gas and Hartree-Fock-BCS models.
doi: 10.1016/j.nuclphysa.2007.01.059
2007WA16 Prog.Part.Nucl.Phys. 59, 243 (2007) Modern aspects of nuclear structure theory
doi: 10.1016/j.ppnp.2006.12.027
2007WA17 Int.J.Mod.Phys. E16, 867 (2007) The phase diagram of strongly interacting matter
doi: 10.1142/S0218301307006344
2006KA02 Phys.Rev.Lett. 96, 012502 (2006) Y.Kalmykov, T.Adachi, G.P.A.Berg, H.Fujita, K.Fujita, Y.Fujita, K.Hatanaka, J.Kamiya, K.Nakanishi, P.von Neumann-Cosel, V.Yu.Ponomarev, A.Richter, N.Sakamoto, Y.Sakemi, A.Shevchenko, Y.Shimbara, Y.Shimizu, F.D.Smit, T.Wakasa, J.Wambach, M.Yosoi Fine Structure of the Gamow-Teller Resonance in 90Nb and Level Density of 1+ States NUCLEAR REACTIONS 90Zr(3He, t), E=140 MeV/nucleon; measured triton spectra. 90Nb deduced level densities, fine structure of Gamow-Teller resonance. Wavelet analysis technique.
doi: 10.1103/PhysRevLett.96.012502
2006PA13 Phys.Rev. C 73, 035502 (2006) P.Papakonstantinou, T.S.Kosmas, J.Wambach, A.Faessler Continuum random-phase approximation study of the incoherent μ- - e- conversion rate and its spurious 1- admixture NUCLEAR REACTIONS 208Pb(μ-, e-), E at rest; calculated transition strength distribution, incoherent rate; deduced spurious contribution from 1- state. Continuum RPA.
doi: 10.1103/PhysRevC.73.035502
2006PA22 Czech.J.Phys. 56, 481 (2006) P.Papakonstantinou, J.Wambach, O.Civitarese, T.S.Kosmas The role of the continuum and the spurious 1- transitions in incoherent μ--e- conversion rate calculations NUCLEAR REACTIONS 40Ca, 208Pb(μ-, e), E at rest; calculated conversion rates, strength distributions. Self-consistent continuum RPA, Skyrme interactions.
doi: 10.1007/s10582-006-0112-8
2006SC03 Phys.Rev. C 73, 011001 (2006) B.-J.Schaefer, M.Wagner, J.Wambach, T.T.S.Kuo, G.E.Brown Low-momentum hyperon-nucleon interactions
doi: 10.1103/PhysRevC.73.011001
2006WA27 Phys.Rev. C 74, 054003 (2006) M.Wagner, B.-J.Schaefer, J.Wambach, T.T.S.Kuo, G.E.Brown Convergence of multi-channel effective interactions
doi: 10.1103/PhysRevC.74.054003
2005DZ01 Nucl.Phys. A748, 551 (2005) A.Dzhioev, J.Wambach, A.Vdovin, Z.Aouissat Symmetry conserving 1/N expansion and extended Holstein-Primakoff mapping for anharmonic O(N+1) oscillator model
doi: 10.1016/j.nuclphysa.2004.11.016
2005HO10 Phys.Lett. B 612, 165 (2005) F.Hofmann, C.Baumer, A.M.van den Berg, D.Frekers, V.M.Hannen, M.N.Harakeh, M.A.de Huu, Y.Kalmykov, P.von Neumann-Cosel, V.Yu.Ponomarev, S.Rakers, B.Reitz, A.Richter, A.Shevchenko, K.Schweda, J.Wambach, H.J.Wortche Polarized proton scattering on 58Ni at small momentum transfer: A test of the microscopic optical model and effective interactions NUCLEAR REACTIONS 58Ni(polarized p, p'), (polarized p, p), E=172 MeV; measured elastic and inelastic σ(E, θ), analyzing powers. Comparison with model predictions.
doi: 10.1016/j.physletb.2005.03.020
2005PA12 J.Phys.(London) G31, 185 (2005) P.Papakonstantinou, E.Mavrommatis, J.Wambach, V.Yu.Ponomarev A microscopic investigation of the transition form factor in the region of collective multipole excitations of stable and unstable nuclei NUCLEAR STRUCTURE 56,78,110Ni, 100,120,132Sn; calculated isoscalar and isovector response functions, transition form factor. Self-consistent Skyrme-Hartree-Fock plus continuum RPA model.
doi: 10.1088/0954-3899/31/3/003
2005PA54 Phys.Lett. B 624, 195 (2005) N.Paar, P.Papakonstantinou, V.Yu.Ponomarev, J.Wambach Low-energy dipole excitations towards the proton drip-line: Doubly magic 48Ni NUCLEAR STRUCTURE 48,56Ni; calculated dipole strength distributions, transition densities. Dirac-Hartree with self consistent relativistic RPA model, Skyrme-Hartree-Fock with continuum RPA model.
doi: 10.1016/j.physletb.2005.08.043
2005SC14 Nucl.Phys. A757, 479 (2005) The phase diagram of the quark-meson model
doi: 10.1016/j.nuclphysa.2005.04.012
2005WA20 Nucl.Phys. A755, 198c (2005) The Medium Modification of Hadrons
doi: 10.1016/j.nuclphysa.2005.03.029
2004DZ01 Phys.Rev. C 69, 014318 (2004) A.Dzhioev, Z.Aouissat, A.Storozhenko, A.Vdovin, J.Wambach Extended Holstein-Primakoff mapping for the next-to-leading order of the 1/N expansion at finite temperature
doi: 10.1103/PhysRevC.69.014318
2004EN03 Nucl.Phys. A741, 3 (2004) J.Enders, T.Guhr, A.Heine, P.von Neumann-Cosel, V.Yu.Ponomarev, A.Richter, J.Wambach Spectral statistics and the fine structure of the electric pygmy dipole resonance in N = 82 nuclei NUCLEAR STRUCTURE 138Ba, 140Ce, 142Nd, 144Sm; analyzed electric pygmy dipole resonance strength distributions, level density; deduced statistical properties. Quasiparticle phonon model calculations.
doi: 10.1016/j.nuclphysa.2004.05.014
2004GR15 Prog.Part.Nucl.Phys. 53, 343 (2004) B.Gruter, R.Alkofer, A.Maas, J.Wambach QCD propagators at non-vanishing temperatures
doi: 10.1016/j.ppnp.2004.02.028
2004PA36 Phys.Lett. B 604, 157 (2004) P.Papakonstantinou, J.Wambach, E.Mavrommatis, V.Yu.Ponomarev Nuclear vorticity and the low-energy nuclear response: towards the neutron drip line NUCLEAR STRUCTURE 56,78,110Ni; calculated quadrupole, octupole, and hexadecapole strength distributions, vorticity. Self-consistent continuum RPA.
doi: 10.1016/j.physletb.2004.10.053
2004SH34 Phys.Rev.Lett. 93, 122501 (2004) A.Shevchenko, J.Carter, R.W.Fearick, S.V.Fortsch, H.Fujita, Y.Fujita, Y.Kalmykov, D.Lacroix, J.J.Lawrie, P.von Neumann-Cosel, R.Neveling, V.Yu.Ponomarev, A.Richter, E.Sideras-Haddad, F.D.Smit, J.Wambach Fine Structure in the Energy Region of the Isoscalar Giant Quadrupole Resonance: Characteristic Scales from a Wavelet Analysis NUCLEAR REACTIONS 58Ni, 90Zr, 120Sn, 208Pb(p, p'), E=200 MeV; measured Ep, σ(E, θ); deduced isoscalar giant quadrupole resonance strength distributions. Wavelet analysis.
doi: 10.1103/PhysRevLett.93.122501
2003WA06 Nucl.Phys. A715, 422c (2003) Hadronic Matter at High Baryon Density
doi: 10.1016/S0375-9474(02)01457-4
2003WA31 Eur.Phys.J. A 18, 453 (2003) Hadrons in dense and hot matter
doi: 10.1140/epja/i2002-10258-6
2002KO16 Phys.Lett. 530B, 67 (2002) M.Kohl, P.Bartsch, D.Baumann, J.Bermuth, R.Bohm, K.Bohinc, S.Derber, M.Ding, M.O.Distler, I.Ewald, J.Friedrich, J.M.Friedrich, P.Jennewein, M.Kahrau, S.S.Kamalov, A.Kozlov, K.W.Krygier, M.Kuss, A.Liesenfeld, H.Merkel, P.Merle, U.Muller, R.Neuhausen, Th.Pospischil, M.Potokar, C.Rangacharyulu, A.Richter, D.Rohe, G.Rosner, H.Schmieden, G.Schrieder, M.Seimetz, S.Sirca, T.Suda, L.Tiator, M.Urban, A.Wagner, Th.Walcher, J.Wambach, M.Weis, A.Wirzba Self Energies of the Pion and the Δ Isobar from the 3He(e, e'π+)3H Reaction NUCLEAR REACTIONS 3He(e, e'π+), E=855 MeV; measured σ(θ, E), longitudinal and transverse σ(θ); deduced reduction in π+ mass. Chiral Perturbation Theory.
doi: 10.1016/S0370-2693(02)01345-X
2002PR05 Phys.Rev. C65, 034906 (2002) M.Prakash, R.Rapp, J.Wambach, I.Zahed Isospin Fluctuations in QCD and Relativistic Heavy-Ion Collisions
doi: 10.1103/PhysRevC.65.034906
2002RE15 Phys.Lett. 532B, 179 (2002) B.Reitz, A.M.van den Berg, D.Frekers, F.Hofmann, M.de Huu, Y.Kalmykov, H.Lenske, P.von Neumann-Cosel, V.Yu.Ponomarev, S.Rakers, A.Richter, G.Schrieder, K.Schweda, J.Wambach, H.J.Wortche Direct Evidence for an Orbital Magnetic Quadrupole Twist Mode in Nuclei NUCLEAR REACTIONS 58Ni(e, e'), E=65.4 MeV; 58Ni(p, p'), E=172 MeV; measured particle spectra, σ(E, θ). 58Ni deduced orbital M2 twist mode. Quasiparticle-phonon model, hydrodynamical model calculations.
doi: 10.1016/S0370-2693(02)01485-5
2002RY06 Phys.Rev.Lett. 89, 272502 (2002) N.Ryezayeva, T.Hartmann, Y.Kalmykov, H.Lenske, P.von Neumann-Cosel, V.Yu.Ponomarev, A.Richter, A.Shevchenko, S.Volz, J.Wambach Nature of Low-Energy Dipole Strength in Nuclei: The Case of a Resonance at Particle Threshold in 208Pb NUCLEAR REACTIONS 208Pb(γ, γ'), E=9.0 MeV bremsstrahlung; measured Eγ, Iγ. 208Pb deduced transitions, B(E1) strength distribution, resonance features. Quasiparticle phonon model calculations.
doi: 10.1103/PhysRevLett.89.272502
2002UR01 Nucl.Phys. A697, 338 (2002) Vector and Axial-Vector Correlators in a Chirally Symmetric Model
doi: 10.1016/S0375-9474(01)01248-9
2002UR03 Phys.Rev. C65, 067302 (2002) Pionic Susceptibility for Charged Pions in Asymmetric Nuclei
doi: 10.1103/PhysRevC.65.067302
2002WA03 Nucl.Phys. A699, 10c (2002) Meson Properties in Dense Hadronic Matter
doi: 10.1016/S0375-9474(01)01464-6
2001AO01 Phys.Rev. C64, 015201 (2001) Z.Aouissat, A.Storozhenko, A.Vdovin, J.Wambach Importance of Single-Boson and Single-Fermion Mappings in the Thermal Boson Expansion
doi: 10.1103/PhysRevC.64.015201
2001WA32 Nucl.Phys. A690, 127c (2001) J.Wambach, Z.Aouissat, P.Schuck Chiral Fluctuations in Nuclei
doi: 10.1016/S0375-9474(01)00937-X
2000AO01 Phys.Rev. C61, 012202 (2000) Z.Aouissat, G.Chanfray, P.Schuck, J.Wambach Reduced σ-Meson Mass and In-Medium S-Wave π-π Correlations
doi: 10.1103/PhysRevC.61.012202
2000LA12 Phys.Lett. 479B, 15 (2000) D.Lacroix, A.Mai, P.von Neumann-Cosel, A.Richter, J.Wambach Multiple Scales in the Fine Structure of the Isoscalar Giant Quadrupole Resonance in 208Pb NUCLEAR REACTIONS 208Pb(p, p'), E=200 MeV; 208Pb(e, e'), E=50 MeV; analyzed spectra; deduced fine structure features in isoscalar GQR. Model-independent entropy index method.
doi: 10.1016/S0370-2693(00)00301-4
2000OE04 Nucl.Phys. A676, 247 (2000) M.Oertel, M.Buballa, J.Wambach Meson Properties in the 1/Nc-Corrected NJL Model
doi: 10.1016/S0375-9474(00)00198-6
2000ST24 Phys.Rev.Lett. 85, 2913 (2000) S.Strauch, P.von Neumann-Cosel, C.Rangacharyulu, A.Richter, G.Schrieder, K.Schweda, J.Wambach Giant Resonances in the Doubly Magic Nucleus 48Ca from the (e, e'n) Reaction NUCLEAR REACTIONS 48Ca(e, e'n), E=68, 88, 103 MeV; measured excitation energy spectra, σ(E, θ). 48Ca deduced giant resonance strength distributions, IAR decay. Comparisons with microscopic model predictions.
doi: 10.1103/PhysRevLett.85.2913
2000UR02 Nucl.Phys. A673, 357 (2000) M.Urban, M.Buballa, R.Rapp, J.Wambach Modifications of the Rho-Meson from the Virtual Pion Cloud in Hot and Dense Matter
doi: 10.1016/S0375-9474(00)00125-1
2000VO15 Phys.Rev. C62, 034307 (2000) P.von Neumann-Cosel, F.Neumeyer, B.Reitz, A.Richter, J.Wambach Transverse Electron Scattering Form Factors at Low Momentum Transfer: Sensitivity to In-Medium Modifications of Vector Meson ? NUCLEAR REACTIONS 48Ca(e, e'), E=42.4, 50.0, 66.4, 82.2 MeV; measured backward-scattered electron spectra; deduced M2 and M4 transition form factors. Sensitivity to model assumptions discussed.
doi: 10.1103/PhysRevC.62.034307
1999RA08 Phys.Rev. C59, R1237 (1999) R.Rapp, J.W.Durso, Z.Aouissat, G.Chanfray, O.Krehl, P.Schuck, J.Speth, J.Wambach Enhancement of πA → ππA Threshold Cross Sections by In-Medium ππ Final State Interactions NUCLEAR REACTIONS 2H, 40Ca(π+, π+π-), (π+, 2π+), E=282.7 MeV; calculated two-pion invariant mass spectra; deduced two-pion final state interaction medium modifications, related features. Comparison with data.
doi: 10.1103/PhysRevC.59.R1237
1999RA34 Eur.Phys.J. A 6, 415 (1999) Low-Mass Dileptons at the CERN-SpS: Evidence for chiral restoration ? NUCLEAR REACTIONS 197Au(Pb, X), E=158 GeV/nucleon; calculated dilepton invariant mass spectra, transverse momentum spectra; deduced broadening of ρ resonance. Comparison with data.
doi: 10.1007/s100500050364
1999VO03 Phys.Rev.Lett. 82, 1105 (1999) P.von Neumann-Cosel, F.Neumeyer, S.Nishizaki, V.Yu.Ponomarev, C.Rangacharyulu, B.Reitz, A.Richter, G.Schrieder, D.I.Sober, T.Waindzoch, J.Wambach Spin and Orbital Magnetic Quadrupole Resonances in 48Ca and 90Zr from 180° Electron Scattering NUCLEAR REACTIONS 48Ca, 90Zr(e, e'), E=42.2, 66.4, 82.2 MeV; measured σ(E, θ=180°). 48Ca, 90Zr deduced B(M2) distributions, possible torsional vibration. Second-RPA calculations.
doi: 10.1103/PhysRevLett.82.1105
1999VO22 Nucl.Phys. (Supplement) A654, 743c (1999) P.von Neumann-Cosel, C.Bahr, F.Hofmann, F.Neumeyer, S.Nishizaki, V.Yu.Ponomarev, C.Rangacharyulu, B.Reitz, A.Richter, G.Schrieder, K.Schweda, A.Stascheck, S.Strauch, T.Waindzoch, J.Wambach Electric and Magnetic Giant Resonances Studied with Electron Scattering at the S-DALINAC NUCLEAR REACTIONS 48Ca(e, e'n), E not given; measured En at 180°. 48Ca deduced B(E2+E0), B(E1) distributions vs excitation energy, Giant Resonance features. 48Ca, 90Zr(e, e'), E=66.4 MeV; measured B(M2) distributions vs excitation energy, Giant Resonance features. Comparison with Statistical model and RPA results.
doi: 10.1016/S0375-9474(00)88540-1
1998BR08 Nucl.Phys. A634, 168 (1998) E.L.Bratkovskaya, W.Cassing, R.Rapp, J.Wambach Dilepton Production and mT-Scaling at BEVALAC/SIS Energies NUCLEAR REACTIONS C(C, X), Ca(Ca, X), E=1 GeV/nucleon; calculated dilepton spectra, mesons transverse mass spectra; deduced reaction mechanism features. 40Ca(γ, X), E=0.6-0.8 GeV; calculated η production σ. Covariant transport approach. Comparison with data.
doi: 10.1016/S0375-9474(98)00135-3
1998BR26 Acta Phys.Pol. B29, 2309 (1998) G.E.Brown, G.Q.Li, R.Rapp, M.Rho, J.Wambach Medium Dependence of the Vector-Meson Mass: Dynamical and/or Brown-Rho Scaling ? NUCLEAR REACTIONS 197Au(Pb, X), E=158 GeV/nucleon; calculated dilepton mass spectra; deduced dilepton production mechanism features. Dynamical and Brown-Rho scaling compared.
1998CA03 Phys.Rev. C57, 916 (1998) W.Cassing, E.L.Bratkovskaya, R.Rapp, J.Wambach Probing the ρ Spectral Function in Hot and Dense Nuclear Matter by Dileptons NUCLEAR REACTIONS W(p, X), (S, X), E=200 GeV/nucleon; 197Au(Pb, X), E=160 GeV/nucleon; calculated dilepton spectra; deduced ρ meson spectral function dependence. Covariant transport approach. Comparison with data.
doi: 10.1103/PhysRevC.57.916
1998NI01 Phys.Rev. C57, 1515 (1998) Double-Giant-Dipole Resonance in 208Pb NUCLEAR STRUCTURE 208Pb; calculated double giant dipole resonance strength distribution, Coulomb excitation cross sections. Microscopic model. NUCLEAR REACTIONS U, Pb, Ho, Sn(208Pb, 208Pb'), E=640 MeV/nucleon; calculated projectile giant resonance Coulomb excitation σ.
doi: 10.1103/PhysRevC.57.1515
1998RA03 Phys.Lett. 417B, 1 (1998) R.Rapp, M.Urban, M.Buballa, J.Wambach A Microscopic Calculation of Photoabsorption Cross Sections on Protons and Nuclei NUCLEAR REACTIONS 1H, Sn, Pb, U(γ, X), E < 1200 MeV; analyzed total photoabsorption σ; deduced parameters, in-medium effects.
doi: 10.1016/S0370-2693(97)01360-9
1998UR04 Nucl.Phys. A641, 433 (1998) M.Urban, M.Buballa, R.Rapp, J.Wambach Momentum Dependence of the Pion Cloud for ρ-Mesons in Nuclear Matter
doi: 10.1016/S0375-9474(98)00476-X
1998WA22 Nucl.Phys. A638, 171c (1998) Theoretical Interpretations of Low-Mass Dileptons
doi: 10.1016/S0375-9474(98)00411-4
1998WA27 Acta Phys.Pol. B29, 2323 (1998) Probing Chiral Symmetry Restoration with Heavy Ions
1997AO03 Nucl.Phys. A618, 402 (1997) Z.Aouissat, P.Schuck, J.Wambach The Linear Sigma Model in the 1/N Expansion Via Dynamical Boson Mappings and Applications to ππ Scattering
doi: 10.1016/S0375-9474(97)00047-X
1997BB17 Phys.Rep. 289, 235 (1997) F.T.Baker, L.Bimbot, C.Djalali, C.Glashausser, H.Lenske, W.G.Love, M.Morlet, E.Tomasi-Gustafsson, J.Van de Wiele, J.Wambach, A.Willis The Nuclear Spin Response to Intermediate Energy Protons and Deuterons at Low Momentum Transfer NUCLEAR REACTIONS 40Ca(polarized p, p'), E=319, 800 MeV; 12C(polarized p, p'), E=318 MeV; 12C, 40Ca(polarized d, d'), E=400 MeV; analyzed σ(E, θ), spin-tranfer observables; deduced collective effects, nuclear spin response related features.
doi: 10.1016/S0370-1573(97)00008-2
1997KA17 Phys.Rev. C55, 2101 (1997) S.Kamerdzhiev, J.Lisantti, P.von Neumann-Cosel, A.Richter, G.Tertychny, J.Wambach Fine Structure of the Giant Isoscalar Quadrupole Resonance in 208Pb Observed in High-Resolution (e, e') and (p, p') Experiments NUCLEAR REACTIONS 208Pb(p, p'), E=200 MeV; measured proton spectra. 208Pb(e, e'), E=50 MeV; analyzed electron spectra. 208Pb deduced giant isoscalar quadrupole resonance fine structure. RPA modes coupled to surface vibration.
doi: 10.1103/PhysRevC.55.2101
1997RA06 Nucl.Phys. A615, 501 (1997) The Two-Pion Exchange NN Potential in Nuclear Matter and Nuclear Stability
doi: 10.1016/S0375-9474(96)00482-4
1997RA10 Nucl.Phys. A617, 472 (1997) Rho Meson Propagation and Dilepton Enhancement in Hot Hadronic Matter
doi: 10.1016/S0375-9474(97)00137-1
1996AO02 Nucl.Phys. A603, 458 (1996) Z.Aouissat, G.Chanfray, P.Schuck, J.Wambach A Non-Perturbative Treatment of the Pion in the Linear σ-Model
doi: 10.1016/0375-9474(96)80011-F
1996CH07 Phys.Rev.Lett. 76, 368 (1996) Medium Modifications of the Rho Meson at CERN Super Proton Synchrotron Energies (200 GeV/nucleon) NUCLEAR REACTIONS 197Au(S, X), E=200 GeV/nucleon; analyzed data; deduced ρ-meson propogation, hot hadronic matter.
doi: 10.1103/PhysRevLett.76.368
1996CH40 Phys.Lett. 388B, 673 (1996) G.Chanfray, M.Ericson, J.Wambach The Quark Condensate at Finite Temperature
doi: 10.1016/S0370-2693(96)01209-9
1996DR05 Phys.Rev.Lett. 76, 4891 (1996) S.Drozdz, A.Trellakis, J.Wambach Spectral Decorrelation of Nuclear Levels in the Presence of Continuum Decay NUCLEAR STRUCTURE 40Ca; calculated nearest neighbor spacing distance, other aspects; deduced spectral decorrelation in continuum decay presence.
doi: 10.1103/PhysRevLett.76.4891
1996RA06 Nucl.Phys. A596, 436 (1996) Chirally Constraining the ππ Interaction in Nuclear Matter
doi: 10.1016/0375-9474(95)00405-X
1996RA17 Phys.Rev. C53, 3057 (1996) Equation of State of an Interacting Pion Gas with Realistic π-π Interactions
doi: 10.1103/PhysRevC.53.3057
1996WA19 Nucl.Phys. A602, 347 (1996) Stability of the B = 2 Hedgehog in the Skyrme Model
doi: 10.1016/0375-9474(96)00099-1
1995AO01 Nucl.Phys. A581, 471 (1995) Z.Aouissat, R.Rapp, G.Chanfray, P.Schuck, J.Wambach s-Wave ππ Correlations in Dense Nuclear Matter
doi: 10.1016/0375-9474(94)00429-Q
1995BR22 Nucl.Phys. A593, 295 (1995) G.E.Brown, M.Buballa, Z.B.Li, J.Wambach Where the Nuclear Pions Are NUCLEAR STRUCTURE 40Ca; calculated spin-longitudinal, spin-transverse response functions ratio. 40Ca, 56Fe; analyzed EMC ratio; deduced excess nuclear pions absence related features.
doi: 10.1016/0375-9474(95)00330-4
1995DR01 Phys.Rev.Lett. 74, 1075 (1995) S.Drozdz, S.Nishizaki, J.Wambach, J.Speth Phase-Space Exploration in Nuclear Giant Resonance Decay NUCLEAR STRUCTURE 40Ca; calculated isovector, isoscalar quadrupole survival probability; deduced phase-space exploration rate.
doi: 10.1103/PhysRevLett.74.1075
1995NI02 Nucl.Phys. A582, 665 (1995) N.N.Nikolaev, A.Szczurek, J.Speth, J.Wambach, B.G.Zakharov, V.R.Zoller Multiple-Scattering Effects in the Transverse-Momentum Distributions from (e, e'p) Reactions NUCLEAR REACTIONS 12C, 208Pb(e, e'p), E=high; calculated fast proton transverse momentum distribution. Multiple-scattering theory.
doi: 10.1016/0375-9474(94)00496-A
1995NI08 Phys.Lett. 349B, 7 (1995) Double-Dipole Excitations in 40Ca NUCLEAR STRUCTURE 40Ca; calculated dipole transition strength distribution, GDR, double GDR. NUCLEAR REACTIONS 40Ca(γ, X), E=15-30 MeV; calculated TRK sum rule normalized photoabsorption σ(E). Microscopic approach, 1p1h-, 2p2h- model space.
doi: 10.1016/0370-2693(95)00229-E
1995RA15 Phys.Lett. 351B, 50 (1995) Thermal Properties of a Hot Pion Gas Beyond the Quasiparticle Approximation
doi: 10.1016/0370-2693(95)00361-N
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