NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = N.K.Timofeyuk Found 78 matches. 2021DI07 Phys.Rev. C 104, 034614 (2021) M.J.Dinmore, N.K.Timofeyuk, J.S.Al-Khalili Three-body optical potentials in (d, p) reactions and their influence on indirect study of stellar nucleosynthesis NUCLEAR REACTIONS 26Al, 30P, 34Cl, 56Ni(d, p), E=12 MeV; calculated GRZ and KD03 σ and σ(θ), former using Giannini, Ricco, and Zucchiatti nonlocal optical potentials, and the latter from Johnson-Tandy potentials; deduced model uncertainties in total σ and σ(θ). 27Al, 57Ni(d, p), E=8.9, 12 MeV; calculated squared asymptotic normalization coefficients (ANCs) and proton widths (Γp) for mirror pairs: 27Al-27Si and 57Ni-57Cu. Adiabatic distorted-wave approximation (ADWA) with dominant contribution from the components of the three-body effects. Relevance to quantifying model uncertainties in ADWA calculations, and to important resonances contributing to nucleosynthesis in stellar environments via astrophysical (p, γ) reactions in rp process.
doi: 10.1103/PhysRevC.104.034614
2021HA01 Phys.Rev.Lett. 126, 042701 (2021) S.Hallam, G.Lotay, A.Gade, D.T.Doherty, J.Belarge, P.C.Bender, B.A.Brown, J.Browne, W.N.Catford, B.Elman, A.Estrade., M.R.Hall, B.Longfellow, E.Lunderberg, F.Montes, M.Moukaddam, P.O'Malley, W.-J.Ong, H.Schatz, D.Seweryniak, K.Schmidt, N.K.Timofeyuk, D.Weisshaar, R.G.T.Zegers Exploiting Isospin Symmetry to Study the Role of Isomers in Stellar Environments NUCLEAR REACTIONS 12C, 2H(26Si, 11C), (26Si, p)27Si, E=30 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, partial σ, branching ratios, J, π, spectroscopic factors. Comparison with shell model calculations, REACLIB data. GRETINA array.
doi: 10.1103/PhysRevLett.126.042701
2021MO20 J.Phys.(London) G48, 095102 (2021) L.Moschini, N.K.Timofeyuk, R.C.Johnson Perturbative correction to the adiabatic approximation for (d, p) reactions NUCLEAR REACTIONS 10Be(d, p), E=40.9, 71 MeV; 55Ni(d, p), E=40 MeV; 40,48Ca(d, p), E=56 MeV; calculated σ(θ). Comparison with available data.
doi: 10.1088/1361-6471/ac105d
2021TI01 J.Phys.(London) G48, 015105 (2021) Modelling overlap functions for one-nucleon removal: role of the effective three-nucleon force NUCLEAR STRUCTURE 40Ca, 208Pb, 39K, 207Tl; calculated overlap functions for proton removals.
doi: 10.1088/1361-6471/abbf00
2020BE10 Phys.Rev. C 101, 054311 (2020) T.A.Berry, Zs.Podolyak, R.J.Carroll, R.Lica, B.A.Brown, H.Grawe, Ch.Sotty, N.K.Timofeyuk, T.Alexander, A.N.Andreyev, S.Ansari, M.J.G.Borge, M.Brunet, J.R.Cresswell, C.Fahlander, L.M.Fraile, H.O.U.Fynbo, E.Gambna, W.Gelletly, R.-B.Gerst, M.Gorska, A.Gredley, P.Greenlees, L.J.Harkness-Brennan, M.Huyse, S.M.Judge, D.S.Judson, J.Konki, M.Kowalska, J.Kurcewicz, I.Kuti, S.Lalkovski, I.Lazarus, M.Lund, M.Madurga, N.Marginean, R.Marginean, I.Marroquin, C.Mihai, R.E.Mihai, E.Nacher, A.Negret, S.Nae, C.Nita, S.Pascu, R.D.Page, Z.Patel, A.Perea, J.Phrompao, M.Piersa, V.Pucknell, P.Rahkila, E.Rapisarda, P.H.Regan, F.Rotaru, M.Rudigier, C.M.Shand, R.Shearman, E.C.Simpson, S.Stegemann, T.Stora, O.Tengblad, A.Turturica, P.Van Duppen, V.Vedia, P.M.Walker, N.Warr, F.P.Wearing, H.De Witte Octupole states in 207Tl studied through β decay RADIOACTIVITY 207Hg(β-)[from 208Pb(p, X)207Hg, E=1.4 GeV]; measured Eγ, Iγ, βγ- and βγγ-coin, γγ(θ) using plastic scintillators for β-detection and four HPGe detectors for γ-detection at CERN-ISOLDE. 207Tl; deduced levels J, π, β feedings, multipolarities, logft, B(M1), B(E1), B(E2), B(M2), B(E3), configurations. Discussion of octupole phonon states. Comparison with state-of-the-art large-scale shell-model calculations, and with previous experimental results.
doi: 10.1103/PhysRevC.101.054311
2020TI06 Phys.Rev. C 102, 064616 (2020) N.K.Timofeyuk, M.J.Dinmore, J.S.Al-Khalili Three-nucleon force contribution to the deuteron channel in (d, p) reactions NUCLEAR REACTIONS 26Al(d, p), E=12 MeV; 40Ca(d, p), E=11.8, 12, 56 MeV; calculated adiabatic potential, deuteron s-wave and d-wave functions, monopole and quadrupole adiabatic effective potentials, absolute values of volume integrals and rms radii of effective interactions, differential σ(θ). Adiabatic distorted wave approximation (ADWA) for three-body model n+p+A of target, with four different three- nucleon interaction sets from local chiral effective field theory (EFT) at next-to-next-to-leading order.
doi: 10.1103/PhysRevC.102.064616
2019BE37 Phys.Lett. B 793, 271 (2019) T.A.Berry, Zs.Podolyak, R.J.Carroll, R.Lica, H.Grawe, N.K.Timofeyuk, T.Alexander, A.N.Andreyev, S.Ansari, M.J.G.Borge, J.Creswell, C.Fahlander, L.M.Fraile, H.O.U.Fynbo, W.Gelletly, R.-B.Gerst, M.Gorska, A.Gredley, P.Greenlees, L.J.Harkness-Brennan, M.Huyse, S.M.Judge, D.S.Judson, J.Konki, J.Kurcewicz, I.Kuti, S.Lalkovski, I.Lazarus, M.Lund, M.Madurga, N.Marginean, R.Marginean, I.Marroquin, C.Mihai, R.E.Mihai, E.Nacher, S.Nae, A.Negret, C.Nita, R.D.Page, S.Pascu, Z.Patel, A.Perea, V.Pucknell, P.Rahkila, E.Rapisarda, P.H.Regan, F.Rotaru, C.M.Shand, E.C.Simpson, Ch.Sotty, S.Stegemann, T.Stora, O.Tengblad, A.Turturica, P.Van Duppen, V.Vedia, R.Wadsworth, P.M.Walker, N.Warr, F.Wearing, H.De Witte Investigation of the Λ n=0 selection rule in Gamow-Teller transitions: The β-decay of 207Hg RADIOACTIVITY 207Hg(β-) [from Pb(p, X)207Hg, E=1.4 GeV]; measured decay products, Eβ, Iβ, Eγ, Iγ, γ-γ-coin.; deduced γ-ray energies and intensities, B(Eλ), branching ratios, partial level scheme, J, π, log ft limit, spectroscopic factors.
doi: 10.1016/j.physletb.2019.04.039
2019DI09 Phys.Rev. C 99, 064612 (2019) M.J.Dinmore, N.K.Timofeyuk, J.S.Al-Khalili, R.C.Johnson Effects of an induced three-body force in the incident channel of (d, p) reactions NUCLEAR REACTIONS 40Ca(d, p)41Ca, E=11.8, 20, 56 MeV; calculated differential σ(θ, E) using the adiabatic distorted-wave approximation (ADWA) with and without first-order contribution of induced three-body (I3B) force. Comparison with experimental data.
doi: 10.1103/PhysRevC.99.064612
2019GO22 J.Phys.(London) G46, 085102 (2019) Perey-effect in continuum-discretized coupled-channel description of (d, p) reactions NUCLEAR REACTIONS 40Ca(d, p), E=10, 20, 56 MeV; calculated σ, σ(θ); deduced Perey effect.
doi: 10.1088/1361-6471/ab25c5
2019TI08 J.Phys.(London) G46, 065103 (2019) Three-body problem with velocity-dependent optical potentials: a case of (d, p) reactions NUCLEAR REACTIONS 40Ca(d, p), (n, n), (p, p), E<22 MeV; calculated σ, σ(θ); deduced velocity-dependent optical potentials.
doi: 10.1088/1361-6471/ab0992
2018GO14 Phys.Rev. C 98, 011601 (2018) Reduced sensitivity of the (d, p) cross sections to the deuteron model beyond the adiabatic approximation NUCLEAR REACTIONS 26mAl(d, p), E=9.2, 25, 50 MeV; calculated differential σ(θ) and spectroscopic factors for the g.s., and 0.84-, 6.8-, and 10.2-MeV 1/2+ states in 27Al, and deuteron and system wave functions using continuum-discretized coupled-channel (CDCC), and adiabatic distorted-wave approximation (ADWA) approaches, with two different NN potentials. Comparison with available experimental data.
doi: 10.1103/PhysRevC.98.011601
2018TI05 Phys.Rev. C 97, 054601 (2018) Three-nucleon force contribution in the distorted-wave theory of (d, p) reactions NUCLEAR REACTIONS 40Ca, 208Pb(d, p), (d, n), E=10, 100 MeV; calculated differential σ(θ, E) using zero-range three-nucleon force in plane- and distorted-wave Born approximations (PWBA and DWBA), and in adiabatic approximation. Finite-range corrections considered within PWBA. Comparison with two-nucleon force calculations.
doi: 10.1103/PhysRevC.97.054601
2017BA05 Phys.Rev. C 95, 024603 (2017) G.W.Bailey, N.K.Timofeyuk, J.A.Tostevin Nonlocal nucleon-nucleus interactions in (d, p) reactions: Role of the deuteron D state NUCLEAR REACTIONS 40Ca(d, p), E=10, 11.8 MeV; 28Si(d, p), E=10 MeV; 26Al(d, p), E=12 MeV; calculated σ(θ) using Chapel Hill 89 phenomenological local optical potential for two NN potential models: the central Hulthen potential with an s-state deuteron, and realistic AV18 potential with s- and d-states of deuteron; deduced spectroscopic factors for 7806-keV state in 26Al+d reaction, role of the deuteron state in (d, p) reactions. Nonlocal adiabatic model wave functions. Relevance to nuclear astrophysics and nuclear spectroscopic studies.
doi: 10.1103/PhysRevC.95.024603
2016BA52 Phys.Rev.Lett. 117, 162502 (2016) G.W.Bailey, N.K.Timofeyuk, J.A.Tostevin Sensitivity of (d, p) Reactions to High n-p Momenta and the Consequences for Nuclear Spectroscopy Studies NUCLEAR REACTIONS 26Al(d, p), E=12 MeV; calculated σ(θ). Comparison with available data.
doi: 10.1103/PhysRevLett.117.162502
2016WA22 Phys.Rev. C 94, 034609 (2016) Implications for (d, p) reaction theory from nonlocal dispersive optical model analysis of 40Ca(d, p)41Ca NUCLEAR REACTIONS 40Ca(d, p)41Ca, E=9.86, 11.8, 17.57, 40, 65 MeV; analyzed differential σ(θ, E) data using nonlocal dispersive optical model (NLDOM) nucleon potentials; deduced real and imaginary parts of the deuteron potential.
doi: 10.1103/PhysRevC.94.034609
2015FE02 Phys.Rev. C 91, 024307 (2015) B.Fernandez-Dominguez, X.Pereira-Lopez, N.K.Timofeyuk, P.Descouvemont, W.N.Catford, F.Delaunay Spectroscopic study of the exotic nucleus 25P NUCLEAR STRUCTURE 25P, 25Ne; calculated levels, J, π, spectroscopic factors, ANCs from (d, p) transfer, partial gamma and proton widths. Proposed possible experiments to investigate levels in unbound 25P nucleus, and searches of the mirror analog of the island of inversion near N=16. Shell model, a potential model, and a microscopic-cluster model. Comparison with experimental data for 25Ne.
doi: 10.1103/PhysRevC.91.024307
2015MA54 Phys.Rev. C 92, 041302 (2015), Pub.Note Phys.Rev. C 92, 044903 (2015) A.Matta, D.Beaumel, H.Otsu, V.Lapoux, N.K.Timofeyuk, N.Aoi, M.Assie, H.Baba, S.Boissinot, R.J.Chen, F.Delaunay, N.de Sereville, S.Franchoo, P.Gangnant, J.Gibelin, F.Hammache, Ch.Houarner, N.Imai, N.Kobayashi, T.Kubo, Y.Kondo, Y.Kawada, L.H.Khiem, M.Kurata-Nishimura, E.A.Kuzmin, J.Lee, J.F.Libin, T.Motobayashi, T.Nakamura, L.Nalpas, E.Yu.Nikolskii, A.Obertelli, E.C.Pollacco, E.Rindel, Ph.Rosier, F.Saillant, T.Sako, H.Sakurai, A.M.Sanchez-Benitez, J-A.Scarpaci, I.Stefan, D.Suzuki, K.Takahashi, M.Takechi, S.Takeuchi, H.Wang, R.Wolski, K.Yoneda New findings on structure and production of 10He from 11Li with the (d, 3He) reaction NUCLEAR REACTIONS 2H(11Li, 3He), (9Li, 3He), E=50 MeV/nucleon, [secondary 9,11Li beams from 9Be(18O, X), E=100 MeV/nucleon primary reaction]; measured 3He spectra, σ(θ) using four MUST2 Si telescopes at RIBF-RIKEN. 8,10He; deduced missing mass spectra, levels, resonances, J, π, widths, spectroscopic factors, 8He+n+n and 6He+4n decay modes of unbound states of 10He. 10He, 11Li; deduced importance of core excitations in the ground state. DWBA analysis, shell-model calculations, and comparison with previous experimental data.
doi: 10.1103/PhysRevC.92.041302
2015TI03 Phys.Rev. C 92, 034330 (2015) Widths of low-lying nucleon resonances in light nuclei in the source-term approach RADIOACTIVITY 5,7,9He, 8Li, 14C, 14N(n); 5Li, 8,9B, 9C, 12,13,14N, 14O(p); calculated partial widths of neutron and proton resonances using shell-model-based source-term approach (STA). Comparison of widths to potential model with standard potential well geometry using spectroscopic factors, from variational Monte Carlo (VMC) wave functions, and with experimental data.
doi: 10.1103/PhysRevC.92.034330
2014JO02 Phys.Rev. C 89, 024605 (2014) Adiabatic model of (d, p) reactions with explicitly energy-dependent nonlocal potentials NUCLEAR REACTIONS 16O(d, p), E=15 MeV; 36Ar(d, p), E=9.162 MeV; 40Ca(d, p), E=11.8 MeV; calculated local adiabatic deuteron potentials, σ(θ) with energy-dependent Giannini-Ricco-Zucchiatti (GRZ), energy independent Giannini-Ricco (GR), nonlocal optical nucleon potentials, and energy-dependent local potential CH89. Adiabatic distorted-wave approximation (ADWA) approach. Comparison with experimental data.
doi: 10.1103/PhysRevC.89.024605
2014KI11 Few-Body Systems 55, 945 (2014) A.Kievsky, M.Gattobigio, N.K.Timofeyuk Efimov Spectrum in Bosonic Systems with Increasing Number of Particles
doi: 10.1007/s00601-013-0773-3
2013PA20 Phys.Rev. C 87, 064613 (2013) D.Y.Pang, N.K.Timofeyuk, R.C.Johnson, J.A.Tostevin Rapid convergence of the Weinberg expansion of the deuteron stripping amplitude NUCLEAR REACTIONS 132Sn(d, p), E=30, 100 MeV; calculated σ(θ) using Weinberg distorted wave components. Weinberg states expansion method. Comparison with continuum discretized coupled channels (CDCC) calculations.
doi: 10.1103/PhysRevC.87.064613
2013TI02 Phys.Rev.Lett. 110, 112501 (2013);Pub.Note Phys.Rev.Lett. 110, 139901 (2013) Nonlocality in Deuteron Stripping Reactions NUCLEAR REACTIONS 40Ca(d, p), E=11.8 MeV; analyzed available data; deduced a method for the analysis of deuteron stripping reactions.
doi: 10.1103/PhysRevLett.110.112501
2013TI04 Phys.Rev. C 87, 064610 (2013) Nonlocality in the adiabatic model of A(d, p)B reactions NUCLEAR REACTIONS 16O, 36Ar, 40Ca(d, p), E=9-15 MeV; calculated σ(θ), Perey factor, local potential. Calculated βn coefficients, moments and effective nonlocality range in A=16, 40, 208 mass range. Effect on spectroscopic factors and ANCs. ADWA theory with nonlocality of nucleon optical potential included in a consistent way together with the deuteron breakup. Deviation from E(d)/2 rule on theoretical cross sections.
doi: 10.1103/PhysRevC.87.064610
2013TI05 Phys.Rev. C 88, 044315 (2013) Spectroscopic factors and asymptotic normalization coefficients for 0p-shell nuclei: Recent updates NUCLEAR STRUCTURE 8He, 7,8,9Li, 7,8,9,10Be, 8,9,10,11,12,13B, 9,10,11,12,13,14C, 12,13,14,15C, 13,14,15,16O; calculated neutron and proton spectroscopic factors, asymptotic normalization coefficients (ANC) for one-neutron or one-proton removal reactions, rms radii using source term approach (STM) with shell-model wave functions for one-nucleon overlap functions in 0p-shell nuclei; updated tables for previous calculations. Comparison with experimental data and other calculations. Discussed neutron-proton asymmetry.
doi: 10.1103/PhysRevC.88.044315
2012FO24 J.Phys.:Conf.Ser. 337, 012025 (2012) A.S.Fomichev, G.M.Ter-Akopian, A.A.Bezbakh, V.Chudoba, A.V.Daniel, M.S.Golovkov, A.V.Gorshkov, V.A.Gorshkov, L.V.Grigorenko, G.Kaminski, S.A.Krupko, Y.Ts.Oganessian, Y.L.Parfenova, S.I.Sidorchuk, R.S.Slepnev, L.Standylo, S.V.Stepantsov, R.Wolski, S.N.Ershov, V.K.Lukyanov, B.V.Danilin, A.A.Korsheninnikov, V.Z.Goldberg, M.Pfutzner, I.G.Mukha, H.Simon, O.B.Tarasov, N.K.Timofeyuk, M.V.Zhukov Status of the ACCULINNA-2 project at FLNR
doi: 10.1088/1742-6596/337/1/012025
2012TI03 Phys.Rev. C 86, 034305 (2012) N.K.Timofeyuk, B.Fernandez-Dominguez, P.Descouvemont, W.N.Catford, F.Delaunay, J.S.Thomas Core excitations and narrow states beyond the proton dripline: The exotic nucleus 21Al NUCLEAR STRUCTURE 21Al; calculated levels, resonances, J, π, widths with respect to 20Mg+p channel and asymptotic normalization coefficients (ANC) for mirror states in 21O using multichannel and single-channel microscopic cluster model (MCM), and in two versions of the potential model. 21O; calculated levels, J, π, asymptotic normalization coefficients (ANC), spectroscopic factors using MCM; compared with experimental data for 20O(d, p)21O reaction.
doi: 10.1103/PhysRevC.86.034305
2011TI11 Phys.Rev. C 84, 054313 (2011) Properties of one-nucleon overlap functions for A ≥ 16 double-closed-shell nuclei in the source-term approach NUCLEAR STRUCTURE 16,17,24O, 25F, 40,41,48,49,60Ca, 41,49Sc, 56,57,78Ni, 100,132,133Sn, 208,209Pb, 209Bi; calculated spectroscopic factors, rms radii, asymptotic normalization coefficients for one-nucleon removal and addition reactions. Source term approach, and independent-particle model. Comparison with experimental data for one nucleon knockout reactions.
doi: 10.1103/PhysRevC.84.054313
2010MU12 Phys.Rev. C 82, 054315 (2010) I.Mukha, K.Summerer, L.Acosta, M.A.G.Alvarez, E.Casarejos, A.Chatillon, D.Cortina-Gil, I.A.Egorova, J.M.Espino, A.Fomichev, J.E.Garcia-Ramos, H.Geissel, J.Gomez-Camacho, L.Grigorenko, J.Hofmann, O.Kiselev, A.Korsheninnikov, N.Kurz, Yu.A.Litvinov, E.Litvinova, I.Martel, C.Nociforo, W.Ott, M.Pfutzner, C.Rodriguez-Tajes, E.Roeckl, M.Stanoiu, N.K.Timofeyuk, H.Weick, P.J.Woods Spectroscopy of proton-unbound nuclei by tracking their decay products in-flight: One- and two- proton decays of 15F, 16Ne, and 19Na NUCLEAR REACTIONS 9Be(17Ne, X)16Ne, E=410 MeV/nucleon; 9Be(20Mg, X), E=450 MeV/nucleon; measured Ep, Ip, p(heavy-ion)-coin, p(heavy-ion)(θ), pp(heavy-ion fragment)-coin, pp(heavy-ion fragment)(θ), Monte-Carlo simulations. 14O, 15F, 16Ne; deduced levels, J, resonances, proton-decay modes, widths. 17Ne and 20Mg beams from fragmentation of 24Mg beam at 591 MeV/nucleon. RADIOACTIVITY 15F, 19Na(p); 16Ne(2p); measured Ep, Ip, p(14O)-coin, p(14O)(θ), p(18Ne)-coin, p(18Ne)(θ), pp(14O)(θ), pp(14O)-coin; deduced decay energies and widths. Monte-Carlo simulations of angular correlation spectra.
doi: 10.1103/PhysRevC.82.054315
2010TI02 Phys.Rev. C 81, 051301 (2010) Narrow states in the three-proton emitter 17Na NUCLEAR STRUCTURE 16C, 16Ne, 17C, 17Na; calculated levels, J, π, spectroscopic factors using microscopic cluster model calculations. Comparison with shell model calculations and experimental data. RADIOACTIVITY 17Na(p), (3p); calculated Ep, widths using microscopic cluster model calculations. Sequential three-proton decay via intermediate states in 16Ne. Comparison with shell model calculations experimental data.
doi: 10.1103/PhysRevC.81.051301
2010TI04 Phys.Rev. C 81, 064306 (2010) Overlap functions, spectroscopic factors, and asymptotic normalization coefficients generated by a shell-model source term NUCLEAR STRUCTURE 3H, 3,4,6,7,8He, 6,7,8,9Li, 7,8,9Be, 8,9,10,11,12B, 8,9,11,12,13,14C, 12,13,14,15N, 13,14,15,16O; calculated overlap functions, spectroscopic factors, asymptotic normalization coefficients (ANC), and rms radii using shell model using four M3YE and GPT potentials for A and A-1 systems. Comparison with experimental data.
doi: 10.1103/PhysRevC.81.064306
2010YA03 Few-Body Systems 47, 213 (2010) A.Yakhelef, N.K.Timofeyuk, J.S.Al-Khalili, I.J.Thompson Three-Body Spectrum of 18C and its Relevance to r-Process Nucleosynthesis NUCLEAR STRUCTURE 16,17,18C; calculated energy levels, transition strengths, two-neutron separation energy. NUCLEAR REACTIONS 17C(n, γ), E not given; calculated B(M1), astrophysical reaction rate, σ.
doi: 10.1007/s00601-010-0086-8
2009MU09 Phys.Rev. C 79, 061301 (2009) I.Mukha, N.K.Timofeyuk, K.Summerer, L.Acosta, M.A.G.Alvarez, E.Casarejos, A.Chatillon, D.Cortina-Gil, J.M.Espino, A.Fomichev, J.E.Garcia-Ramos, H.Geissel, J.Gomez-Camacho, L.Grigorenko, J.Hofmann, O.Kiselev, A.Korsheninnikov, N.Kurz, Yu.Litvinov, I.Martel, C.Nociforo, W.Ott, M.Pfutzner, C.Rodriguez-Tajes, E.Roeckl, M.Stanoiu, H.Weick, P.J.Woods Observation of narrow states in nuclei beyond the proton drip line: 15F and 16Ne NUCLEAR REACTIONS 9Be(17Ne, X)16Ne/15F, E=450 MeV/nucleon; measured particle spectra, (particle)(proton)(θ), (particle)(proton)(proton)(θ), and widths. 15F, 16Ne; deduced levels, J, π.
doi: 10.1103/PhysRevC.79.061301
2009TI11 Phys.Rev.Lett. 103, 242501 (2009) New Insight into the Observation of Spectroscopic Strength Reduction in Atomic Nuclei: Implication for the Physical Meaning of Spectroscopic Factors NUCLEAR STRUCTURE 3H, 3He, 4He, 7Li, 8Li, 8B, 9Li, 9B, 9Be, 9C, 10Be, 12B, 12C, 13C, 14C, 14N, 15N, 16O; calculated spectroscopic factors; deduced problems with direct overlapping model wave functions procedure.
doi: 10.1103/PhysRevLett.103.242501
2008TI07 Phys.Rev. C 78, 044323 (2008) N.K.Timofeyuk, P.Descouvemont, I.J.Thompson Threshold effects in the 27P(3/2+) → 26Si + p and 27Mg(3/2+) → 26Mg + n mirror decays and the stellar reaction 26Si(p, γ)27P NUCLEAR REACTIONS 26Mg(t, d), E=36 MeV; analyzed cross sections, ANCs; 26Si(p, γ); deduced astrophysical S-factors. NUCLEAR STRUCTURE 27Mg, 27P; calculated resonance energies, widths, particle separation energies. Shell model calculations.
doi: 10.1103/PhysRevC.78.044323
2008TI08 Phys.Rev. C 78, 054314 (2008); Publishers Note Phys.Rev. C 78, 069906 (2008) Improved procedure to construct a hyperspherical basis for the N-body problem: Application to bosonic systems NUCLEAR STRUCTURE 12C, 16O, 20Ne, 24Mg; calculated binding energies, wave functions. Hyperspherical functions method.
doi: 10.1103/PhysRevC.78.054314
2008TI09 Phys.Rev. C 78, 054322 (2008) Spectroscopic factors and asymptotic normalization coefficients in mirror three-body systems NUCLEAR STRUCTURE 6He, 6Be, 9Li, 9C, 18O, 18Ne; calculated spectroscopic factors, asymptotic normalization coefficients.
doi: 10.1103/PhysRevC.78.054322
2007TI02 Phys.Rev. C 75, 034302 (2007) N.K.Timofeyuk, P.Descouvemont, R.C.Johnson Isospin symmetry in mirror α decays NUCLEAR STRUCTURE 7Li, 7Be, 11B, 11C, 19F, 19Ne; calculated mirror states asymptotic normalization coefficients, α resonance widths.
doi: 10.1103/PhysRevC.75.034302
2007TI12 Phys.Rev. C 76, 044309 (2007) Long-range behavior of valence nucleons in a hyperspherical formalism NUCLEAR STRUCTURE 5He; calculated binding energy, rms radius, spectroscopic factors. Hyperspherical formalism calculations, toy model.
doi: 10.1103/PhysRevC.76.044309
2006TI05 Phys.Rev.Lett. 96, 162501 (2006) N.K.Timofeyuk, D.Baye, P.Descouvemont, R.Kamouni, I.J.Thompson 15C-15F Charge symmetry and the 14C(n, γ)15C Reaction Puzzle NUCLEAR REACTIONS 14C(n, γ), E ≈ 10-1000 keV; analyzed σ, asymptotic normalization coefficients, E1 component, charge symmetry features in 15C, 15F nucleon decay.
doi: 10.1103/PhysRevLett.96.162501
2006TI08 Eur.Phys.J. A 27, Supplement 1, 269 (2006) N.K.Timofeyuk, P.Descouvemont, R.C.Johnson Relation between proton and neutron asymptotic normalization coefficients for light mirror nuclei and its relevance for nuclear astrophysics
doi: 10.1140/epja/i2006-08-041-6
2005MU27 J.Phys.(London) G31, S1413 (2005) A.M.Mukhamedzhanov, E.O.Alt, L.D.Blokhintsev, S.Cherubini, B.F.Irgaziev, A.S.Kadyrov, D.Miljanic, A.Musumarra, M.G.Pellegriti, F.Pirlepesov, C.Rolfs, S.Romano, C.Spitaleri, N.K.Timofeyuk, R.E.Tribble, A.Tumino Few-body problems in nuclear astrophysics
doi: 10.1088/0954-3899/31/10/005
2005TI07 Phys.Rev. C 71, 064305 (2005) Asymptotic normalization coefficients for mirror virtual nucleon decays in a microscopic cluster model NUCLEAR STRUCTURE 8Li, 8,12B, 13C, 12,13,15N, 15,17O, 17F, 23Ne, 27Mg, 23Al, 27P; calculated overlap integrals, proton and neutron mirror asymptotic normalization coefficients. Microscopic cluster model.
doi: 10.1103/PhysRevC.71.064305
2005TI14 Phys.Rev. C 72, 064324 (2005) Relation between widths of proton resonances and neutron asymptotic normalization coefficients in mirror states of light nuclei in a microscopic cluster model NUCLEAR STRUCTURE 8Li, 12B, 13C, 23Ne, 27Mg; calculated asymptotic normalization coefficients, spectroscopic factors, radii. 8B, 12,13N, 23Al, 27P; calculated proton resonance widths.
doi: 10.1103/PhysRevC.72.064324
2004GR03 Eur.Phys.J. A 19, 187 (2004) L.V.Grigorenko, N.K.Timofeyuk, M.V.Zhukov Broad states beyond the neutron drip line Examples of 5H and 4n NUCLEAR STRUCTURE 5H; calculated levels, J, π, widths. 4n, 5H; calculated continuum response, related features. Model with source approach.
doi: 10.1140/epja/i2003-10124-1
2004TI02 Phys.Rev. C 69, 034336 (2004) Hyperspherical harmonics with orthogonal symmetry in the shell model approach and its application to light nuclei NUCLEAR STRUCTURE 4,5,7H, 5,6,7,8,9,10He; calculated binding energies, radii. Fully antisymmetric hyperspherical harmonics.
doi: 10.1103/PhysRevC.69.034336
2003KO11 Phys.Rev.Lett. 90, 082501 (2003) A.A.Korsheninnikov, E.Yu.Nikolskii, E.A.Kuzmin, A.Ozawa, K.Morimoto, F.Tokanai, R.Kanungo, I.Tanihata, N.K.Timofeyuk, M.S.Golovkov, A.S.Fomichev, A.M.Rodin, M.L.Chelnokov, G.M.Ter-Akopian, W.Mittig, P.Roussel-Chomaz, H.Savajols, E.Pollacco, A.A.Ogloblin, M.V.Zhukov Experimental Evidence for the Existence of 7H and for a Specific Structure of 8He NUCLEAR REACTIONS 1H(8He, 2p), E=61.3 MeV/nucleon; measured particle spectra, pp-coin; deduced evidence for 7H. 1H(8He, t), E=61.3 MeV/nucleon; measured σ(E, θ). 8He deduced ground-state configuration features.
doi: 10.1103/PhysRevLett.90.082501
2003TI01 Nucl.Phys. A713, 217 (2003) Direct capture contribution to the 11C(p, γ)12N reaction at astrophysical energies NUCLEAR REACTIONS 11C(p, γ), E(cm)=0-1.5 MeV; calculated overlap integral, local potential, astrophysical S-factor, direct capture contribution.
doi: 10.1016/S0375-9474(02)01292-7
2003TI03 J.Phys.(London) G29, L9 (2003) Do multineutrons exist? NUCLEAR STRUCTURE 4,6,8,10n; calculated hyperradial potentials, deduced no bound or resonance states. 4H, 4He; calculated binding energies.
doi: 10.1088/0954-3899/29/2/102
2003TI10 Phys.Rev. C 68, 021601 (2003) N.K.Timofeyuk, L.D.Blokhintsev, J.A.Tostevin Pre-asymptotic behavior of single-particle overlap integrals of non-Borromean two-neutron halos NUCLEAR STRUCTURE 12Be, 15B, 9,16C; calculated single-particle overlap integrals, local effective potentials. NUCLEAR REACTIONS 9Be(12Be, 11BeX), E=80 MeV/nucleon; calculated σ, stripping and diffraction contributions, longitudinal momentum distribution, role of pre-asymptotic behavior.
doi: 10.1103/PhysRevC.68.021601
2003TI13 Phys.Rev.Lett. 91, 232501 (2003) N.K.Timofeyuk, R.C.Johnson, A.M.Mukhamedzhanov Relation between Proton and Neutron Asymptotic Normalization Coefficients for Light Mirror Nuclei and its Relevance to Nuclear Astrophysics NUCLEAR STRUCTURE 6,7,8Li, 7Be, 8,11,12B, 11,12,13C, 12,13,14,15N, 15,16,17O, 17F, 22,23Ne, 22,26,27Mg, 23Al, 26Si, 27P; calculated overlap integrals, proton and neutron mirror asymptotic normalization coefficients. Astrophysical implications discussed.
doi: 10.1103/PhysRevLett.91.232501
2002TI05 Phys.Rev. C65, 064306 (2002) Shell Model Approach to Construction of a Hyperspherical Basis for A Identical Particles: Application to hydrogen and helium isotopes NUCLEAR STRUCTURE 3,4,5,6,7H, 4,5,6,7,8,9,10He; calculated hyperspherical basis states, binding energies. Comparison with data.
doi: 10.1103/PhysRevC.65.064306
2001TI03 Phys.Rev. C63, 054609 (2001) Normalization of the (6He, 4He) Cross Sections in the Distorted-Wave Born Approximation NUCLEAR REACTIONS 4He(6He, α), E(cm)=60.4 MeV; 3He(α, α), E(cm)=28.7 MeV; 1H(6He, α), E=25 MeV/nucleon; analyzed σ(θ); deduced normalization due to antisymmetrization. DWBA, translation-invariant shell model.
doi: 10.1103/PhysRevC.63.054609
2000TI02 Phys.Rev. C61, 044608 (2000); Erratum Phys.Rev. C65, 039901 (2002) Proton-Induced Reactions on 6He at Low Energies NUCLEAR REACTIONS 6He(p, p), (p, n), (p, d), (p, t), E=0.97 MeV; calculated σ(θ), σ(E), reaction σ. 4He(t, t), E=14.59 MeV; 5He(d, d), E=1.66 MeV; calculated σ(θ). 6He(p, γ), E=0.1-1.5 MeV; calculated σ. Coupled reaction channels approach.
doi: 10.1103/PhysRevC.61.044608
1999TI04 Phys.Rev. C59, 1545 (1999) Deuteron Stripping and Pick-Up on Halo Nuclei NUCLEAR REACTIONS 16O(d, p), E=36, 63.2 MeV; 10Be(p, p), E=14 MeV; 10Be(d, p), E=25 MeV; 11Be(p, d), E=35 MeV; calculated σ(θ); deduced recoil excitation, breakup effects.
doi: 10.1103/PhysRevC.59.1545
1999TI05 J.Phys.(London) G25, 933 (1999) N.K.Timofeyuk, P.Descouvemont, I.J.Thompson Oxygen Isotopes in the Hyperspherical Functions Method NUCLEAR STRUCTURE Z=8; calculated binding energies, radii for A=12-28. 25,26,27,28O deduced particle instability. Hyperspherical functions method, different nucleon-nucleon forces compared.
doi: 10.1088/0954-3899/25/4/073
1999TI07 Nucl.Phys. A652, 132 (1999) On the Experimental Investigation of the Spectra of A = 6 Nuclei below the 3 + 3 Threshold NUCLEAR REACTIONS 9Be(p, α), E=30 MeV; 1H(8Li, 6He), E=35 MeV/nucleon; calculated σ(E, θ); deduced reason for non-observation of excited states in A=6 nuclei. Other reactions discussed.
doi: 10.1016/S0375-9474(99)00158-X
1998TI02 Nucl.Phys. A632, 19 (1998) One Nucleon Overlap Integrals for Light Nuclei NUCLEAR STRUCTURE 8B, 8Li, 11Be; calculated one-nucleon overlap integrals; deduced spectroscopic factors, radii. Microscopic method.
doi: 10.1016/S0375-9474(98)00810-0
1998TI13 Bull.Rus.Acad.Sci.Phys. 62, 524 (1998) N.K.Timofeyuk, T.M.Tursunmuratov, R.Yarmukhamedov Nuclear Vertex Constants for Virtual 7Li → α + t and 7Be → α + 3He Decays within the α-Cluster Potential Model NUCLEAR STRUCTURE 7Li, 7Be; calculated α+t, α+3He virtual decays nuclear vertex constants; deduced interaction potentials. α-cluster model.
1997TI03 Nucl.Phys. A620, 29 (1997) N.K.Timofeyuk, D.Baye, P.Descouvemont Microscopic Shell-Model and Cluster-Model Calculations of the 13C → 12C + n and 8B → 7Be + p Vertex Constants NUCLEAR STRUCTURE 13C, 8B; calculated nucleon decay associated vetex constants; deduced 7Be(p, γ) astrophysical S-factor implications.
doi: 10.1016/S0375-9474(97)00155-3
1996TI02 Nucl.Phys. A600, 1 (1996) N.K.Timofeyuk, P.Descouvemont, D.Baye Microscopic Calculation of 17Ne and 17N Properties in a Three-Cluster Generator-Coordinate Method NUCLEAR STRUCTURE 17Ne, 17N; calculated levels, Fermi-, Gamow-Teller β-decay matrix elements, log ft, asymmetry factor; deduced independence from possible halo effects. 17O, 17F; calculated levels. Microscopic approach, three-cluster generator coordinate method.
doi: 10.1016/0375-9474(96)00004-8
1996TI05 J.Phys.(London) G22, L99 (1996) β-Decay of the Halo Nucleus 14Be NUCLEAR STRUCTURE 14B; calculated levels, 2+, 1+ states energy curves. Two-Cluster generating coordinate method. RADIOACTIVITY 14Be(β-n); calculated β-delayed 2n-emission associated transition probability. 14B level deduced β-decay dependence on 2n-12Be relative separation.
doi: 10.1088/0954-3899/22/10/001
1995BA48 Nucl.Phys. A588, 147c (1995) D.Baye, P.Descouvemont, N.K.Timofeyuk Densities in a Microscopic Multicluster Model and the Proton-Halo Problem in 8B NUCLEAR STRUCTURE 8B, 8Li; calculated levels, nucleon radii, quadrupole moment μ, nucleon monopole, quadrupole densities. Microscopic, multi-cluster model. 8B deduced no proton halo evidence.
doi: 10.1016/0375-9474(95)00114-G
1995MU10 Phys.Rev. C51, 3472 (1995) A.M.Mukhamedzhanov, R.E.Tribble, N.K.Timofeyuk Possibility to Determine the Astrophysical S Factor for the 7Be(p, γ)8B Radiative Capture from Analysis of the 7Be(3He, d)8B Reaction NUCLEAR REACTIONS 7Be(3He, d), E=21-45 MeV; calculated σ(θ); deduced relevance to 7Be(p, γ) reaction astrophysical S-factor absolute value definition. Optical model.
doi: 10.1103/PhysRevC.51.3472
1994BA64 Nucl.Phys. A577, 624 (1994) D.Baye, P.Descouvemont, N.K.Timofeyuk Matter Densities of 8B and 8Li in a Microscopic Cluster Model and the Proton-Halo Problem of 8B NUCLEAR STRUCTURE 8Li, 8B; calculated proton, neutron, matter radii, transition densities. 8Li deduced neutron skin thickness. 8B deduced proton skin thickness, halo features. Microscopic generator coordinate method.
doi: 10.1016/0375-9474(94)90936-9
1994BU01 Phys.Rev. C49, 977 (1994) V.Burjan, J.Cejpek, J.Fojtu, V.Kroha, I.Pecina, A.M.Mukhamedzhanov, N.K.Timofeyuk Rainbowlike Effects in (3He, α) Reactions NUCLEAR REACTIONS 13,14C(3He, α), (3He, 3He), E=37.9 MeV; measured σ(θ); deduced optical model parameters, rainbow mechanism. 13,12C levels deduced spectroscopic factors. DWBA analysis.
doi: 10.1103/PhysRevC.49.977
1994XU08 Phys.Rev.Lett. 73, 2027 (1994) H.M.Xu, C.A.Gagliardi, R.E.Tribble, A.M.Mukhamedzhanov, N.K.Timofeyuk Overall Normalization of the Astrophysical S Factor and the Nuclear Vertex Constant for 7Be(p, γ)8B Reactions NUCLEAR REACTIONS, ICPND 7Be(p, γ), E(cm) ≤ 2 MeV; calculated astrophysical S-factor S(17) vs E; deduced nuclear vertex constant vs S-factor normalization.
doi: 10.1103/PhysRevLett.73.2027
1993MU12 Yad.Fiz. 56, No 7, 145 (1993); Phys.Atomic Nuclei 56, 937 (1993) A.M.Mukhamedzhanov, Kh.D.Razikov, N.K.Timofeyuk, R.Yarmukhamedov Calculation of the Vertex Constant for the Decay 6Li → α + d in the Three-body Model NUCLEAR STRUCTURE 6Li; calculated (α+d) breakup vertex constant. Three-body model.
1993TI01 Nucl.Phys. A551, 1 (1993) N.K.Timofeyuk, D.Baye, P.Descouvemont Soft Monopole Mode in Weakly Bound Light Nuclei NUCLEAR STRUCTURE 8,7Li, 8B, 12N; calculated monopole energy, width, strength function. 8B deduced monopole strength relation to 7Be(p, γ) astrophysical S-factor. Generator coordinate method, simple potential model.
doi: 10.1016/0375-9474(93)90299-D
1992BA50 Phys.Lett. 293B, 13 (1992) Vertex Constants and the Problem of the Nucleon-Nucleon Potential in the Generator Coordinate Method NUCLEAR STRUCTURE 17O; calculated rms radius, 16O+n vertex constant. Different nucleon-nucleon potentials, generator coordinate method.
doi: 10.1016/0370-2693(92)91473-M
1991BE40 Yad.Fiz. 54, 387 (1991); Sov.J.Nucl.Phys. 54, 232 (1991) S.M.Bekbaev, G.Kim, A.M.Mukhamedzhanov, N.K.Timofeyuk Vertex Constants from an Analysis of Form Factors of Electron Elastic Scattering NUCLEAR REACTIONS 7Li, 9Be, 13C(e, e), E not given; analyzed longitudinal, transverse form factors. 7Li, 9Be, 13C deduced single particle radial functions, virtual p-, n-decay vertex constants.
1990BL16 Izv.Akad.Nauk SSSR, Ser.Fiz. 54, 569 (1990); Bull.Acad.Sci.USSR, Phys.Ser. 54, No.3, 190 (1990) L.D.Blokhintsev, A.M.Mukhamedzhanov, N.K.Timofeyuk, Yu.M.Chuvilsky Microscopic Approach to the Calculation of the Vertex Constants of Neutron Cleavage NUCLEAR STRUCTURE 13C, 9Be, 16O, 15,14N; calculated neutron cleavage vertex constant. Microscopic approach, translationally invariant shell model.
1990MU10 Yad.Fiz. 51, 679 (1990); Sov.J.Nucl.Phys. 51, 431 (1990) A.M.Mukhamedzhanov, N.K.Timofeyuk Microscopic Calculations of Nucleon-Separation Vertex Constants for 1p-Shell Nuclei NUCLEAR STRUCTURE 12,13C, 13,15,14N, 7,8,9,10Be, 7,8Li, 10,12B, 15,16O; calculated virtual nucleon decay; deduced vertex constants squared modulii. Microscopic model.
1990MU13 Pisma Zh.Eksp.Teor.Fiz. 51, 247 (1990); JETP Lett.(USSR) 51, 282 (1990) A.M.Mukhamedzhanov, N.K.Timofeyuk Astrophysical S-Factor for the Reaction 7Be + p → 8B + γ NUCLEAR REACTIONS, ICPND 7Be(p, γ), E ≈ 20 keV; calculated astrophysical S-factor.
1990MU19 Yad.Fiz. 52, 704 (1990); Sov.J.Nucl.Phys. 52, 452 (1990) A.M.Mukhamedzhanov, S.A.Goncharov, I.R.Gulamov, V.Kroha, N.K.Timofeyuk Vertex Form Factors and Overlap Integrals in the Microscopic Approach and Reactions of One-Nucleon Transfer NUCLEAR REACTIONS 13C(3He, α), E=39.6 MeV; measured σ(θ). 13C(α, α), E=65 MeV; 13C(p, d), E=18.6 MeV; analyzed σ(θ); deduced model parameters. Microscopic overlap integrals, vertex form factors.
1989GO14 J.Phys.(London) G15, 1431 (1989) S.A.Goncharov, I.R.Gulamov, E.A.Romanovsky, N.K.Timofeyuk, K.V.Shitikova The Optical Potential to Describe Proton Scattering on the 13C Nucleus in the 10-20 MeV Energy Region NUCLEAR REACTIONS 13C(p, p), E=13.5-17.5 MeV; calculated σ(θ), P(θ); deduced model parameters. Phenomenological, folding model potentials.
doi: 10.1088/0954-3899/15/9/012
1989RO16 Izv.Akad.Nauk SSSR, Ser.Fiz. 53, 151 (1989); Bull.Acad.Sci.USSR, Phys.Ser. 53, No.1, 146 (1989) E.A.Romanovsky, B.M.Saidov, O.V.Bespalova, N.F.Markina, N.K.Timofeyuk, Husein Hamad Abbd Isotope Effects Upon Interaction between Protons and 76,78,80,82Se Nuclei NUCLEAR REACTIONS, ICPND 76,78,80,82Se(p, p), (p, p'), (p, n), E=3-9 MeV; calculated reaction, total σ(E); deduced model parameter isotope dependence.
1986GO23 Yad.Fiz. 44, 303 (1986) S.A.Goncharov, Yu.I.Denisov, A.M.Mukhamedzhanov, E.A.Romanovsky, G.E.Valiev, I.R.Gulamov, T.Iskhakov, G.Ni, N.K.Timofeyuk, R.Yarmukhamedov, V.Kroha, V.A.Stepanenko Spectroscopic Factors and Nuclear Vertex Constants from (p, d) Reactions on 7Li, 9Be, and 13C Nuclei and DWBA Analysis NUCLEAR REACTIONS 7Li, 9Be, 13C(d, p), E=18.6 MeV; measured σ(θ); deduced vertex constants, optical model parameters. 8Be, 12C, 6Li levels deduced spectroscopic factpors. DWBA analyses.
1986RO10 Izv.Akad.Nauk SSSR, Ser.Fiz. 50, 135 (1986); Bull.Acad.Sci.USSR, Phys.Ser. 50, No.1, 131 (1986) E.A.Romanovsky, B.M.Saidov, Khusein Khamad Abbd, A.M.Borisov, S.V.Ermakov, T.I.Spasskaya, N.K.Timofeyuk, S.Ch.Roi, B.S.Galakhmatova Elastic Scattering of Protons at Near Barrier Energies on 78,80,82Se NUCLEAR REACTIONS, ICPND 78Se(p, p), E=5-6.2 MeV; 80Se(p, p), E=3.5-6 MeV; 82Se(p, p), E=4.9-6.8 MeV; measured σ(θ); deduced reaction σ(E), model parameters. Optical model. Data from this article have been entered in the EXFOR database. For more information, access X4 datasetF0902. Back to query form |