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NSR database version of April 11, 2024.

Search: Author = L.G.Pedersen

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2023PA40      Eur.Phys.J. A 59, 276 (2023)

G.Pasqualato, S.Ansari, J.S.Heines, V.Modamio, A.Gorgen, W.Korten, J.Ljungvall, E.Clement, J.Dudouet, A.Lemasson, T.R.Rodriguez, J.M.Allmond, T.Arici, K.S.Beckmann, A.M.Bruce, D.Doherty, A.Esmaylzadeh, E.R.Gamba, L.Gerhard, J.Gerl, G.Georgiev, D.P.Ivanova, J.Jolie, Y.-H.Kim, L.Knafla, A.Korichi, P.Koseoglou, M.Labiche, S.Lalkovski, T.Lauritsen, H.-J.Li, L.G.Pedersen, S.Pietri, D.Ralet, J.M.Regis, M.Rudigier, S.Saha, E.Sahin, S.Siem, P.Singh, P.-A.Soderstrom, C.Theisen, T.Tornyi, M.Vandebrouck, W.Witt, M.Zielinska, D.Barrientos, P.Bednarczyk, G.Benzoni, A.J.Boston, H.C.Boston, A.Bracco, B.Cederwall, M.Ciemala, G.de France, C.Domingo-Pardo, J.Eberth, A.Gadea, V.Gonzalez, A.Gottardo, L.J.Harkness-Brennan, H.Hess, D.S.Judson, A.Jungclaus, S.M.Lenzi, S.Leoni, R.Menegazzo, D.Mengoni, C.Michelagnoli, D.R.Napoli, J.Nyberg, Zs.Podolyak, A.Pullia, F.Recchia, P.Reiter, K.Rezynkina, M.D.Salsac, E.Sanchis, M.Senyigit, M.Siciliano, J.Simpson, D.Sohler, O.Stezowski, J.J.Valiente-Dobon, D.Verney

Shape evolution in even-mass 98-104Zr isotopes via lifetime measurements using the γγ coincidence technique

NUCLEAR REACTIONS 9Be(238U, X)98Zr/100Zr/102Zr/104Zr, E=6.2 MeV/nucleon; measured reaction products, Eγ, Iγ, γ-γ-coin. 104Mo, 102Nb; deduced γ-ray energies and relative intensities, J, π, level T1/2, B(E2), shape coexistence. Comparison with calculated values. The Differential Decay Curve Method (DDCM), the Recoil Distance Doppler Shift technique. The magnetic spectrometer VAMOS++, GANIL, the Orsay Universal Plunger system.

doi: 10.1140/epja/s10050-023-01172-8
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2023PE06      Phys.Rev. C 107, 044301 (2023)

L.G.Pedersen, E.Sahin, A.Gorgen, F.L.Bello Garrote, Y.Tsunoda, T.Otsuka, M.Niikura, S.Nishimura, Z.Xu, H.Baba, G.Benzoni, F.Browne, A.M.Bruce, S.Ceruti, F.C.L.Crespi, R.Daido, G.de Angelis, M.-C.Delattre, Zs.Dombradi, P.Doornenbal, Y.Fang, S.Franchoo, G.Gey, A.Gottardo, T.Isobe, P.R.John, H.S.Jung, I.Kojouharov, T.Kubo, N.Kurz, I.Kuti, Z.Li, G.Lorusso, I.Matea, K.Matsui, D.Mengoni, T.Miyazaki, V.Modamio, S.Momiyama, A.I.Morales, P.Morfouace, D.R.Napoli, F.Naqvi, H.Nishibata, A.Odahara, R.Orlandi, Z.Patel, S.Rice, H.Sakurai, H.Schaffner, L.Sinclair, P.-A.Soderstrom, D.Sohler, I.G.Stefan, T.Sumikama, D.Suzuki, R.Taniuchi, J.Taprogge, Z.Vajta, J.J.Valiente-Dobon, H.Watanabe, V.Werner, J.Wu, A.Yagi, M.Yalcinkaya, R.Yokoyama, K.Yoshinaga

First spectroscopic study of odd-odd 78Cu

RADIOACTIVITY 78Ni(β-)[from 9Be(238U, X), E=345 MeV/nucleon]; measured Eγ, Iγ, βγ-coin, γγ-coin; deduced β-feeding, γ-transition intensities. 78Cu; deduced levels J, π, T1/2 of isomer state. Comparison with Monte Carlo shell model (MCSM) calculations. Wide-range active silicon-strip stopper array for beta and ion detection (WAS3ABi) with EURICA HPGe cluster det ector array at RIBF (RIKEN).

NUCLEAR STRUCTURE 78Cu; calculated levels, J, π, occupation numbers of proton and neutron orbitals, excitation energies of the negative-parity multiplets, configurations. Monte Carlo shell model calculations performed using A3DA-m interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.107.044301
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2023PO02      Phys.Rev. C 107, 034605 (2023)

F.Pogliano, F.L.Bello Garrote, A.C.Larsen, H.C.Berg, D.Gjestvang, A.Gorgen, M.Guttormsen, V.W.Ingeberg, T.W.Johansen, K.L.Malatji, E.F.Matthews, M.Markova, J.E.Midtbo, V.Modamio, L.G.Pedersen, E.Sahin, S.Siem, T.G.Tornyi, A.S.Voyles

Observation of a candidate for the M1 scissors resonance in odd-odd 166Ho

NUCLEAR REACTIONS 163Dy(α, pγ), E=26 MeV; measured Eγ, Iγ, Ep, Ip, Eα, Iα, pγ-coin, pαγ-coin. 166Ho; deduced nuclear level density (NLD), gamma strength function (GSF), resonance components of the GSF (Giant Dipole Re sonance, Pigmy Dipole Resonance, M1 scissors resonance), B(M1), parameters of s cissor resonance. Oslo method type of analysis. Systematics of scissor resonances is Ho, Sm, Dy, Er isotopes. Comparison to TALYS 1.95 calculations and other experimental data. Oslo Scintillator Array (OSCAR) of 30 cylindrical LaBr3:Ce detectors and silicon ring (SiRi) consisting of 8 silicon-telescope modules at the Oslo Cyclotron Laboratory (OCL).

doi: 10.1103/PhysRevC.107.034605
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2023PO08      Phys.Rev. C 107, 064614 (2023)

F.Pogliano, A.C.Larsen, S.Goriely, L.Siess, M.Markova, A.Gorgen, J.Heines, V.W.Ingeberg, R.G.Kjus, J.E.L.Larsson, K.C.W.Li, E.M.Martinsen, G.J.Owens-Fryar, L.G.Pedersen, S.Siem, G.S.Torvund, A.Tsantiri

Experimentally constrained 165, 166Ho(n, γ) rates and implications for the s process

NUCLEAR REACTIONS 164Dy(α, pγ)167Ho, E=26 MeV; measured Ep, Ip, Eγ, Iγ, pγ-coin. 167Ho; deduced nuclear level density (NLD) and γ-ray strength function, resonance components of the GSF (Giant Dipole Resonance, Pigmy Dipole Resonance, M1 scissors resonance), upward scissor resonance strength. 165,166Ho(n, γ), E=0.001-10 MeV; calculated σ(E) using obtained NLD and GSF (for 167Ho from present work, for 166Ho - from 2023PO02), Maxwellian-averaged σ(E) MACS (kT<105 keV). Oslo method type of analysis. Comparison with other experimental data and TALYS calculations. Comparison of obtained MACS with JINA REACLIB, BRUSLIB and KADONIS data. AGB nucleosynthesis predictions with STARERVOL code using obtained MACS. Oslo SCintillator ARray (OSCAR) and the Silicon Ring (SiRi) detector arrays at MC-35 Scanditronix cyclotron.

doi: 10.1103/PhysRevC.107.064614
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2022GU17      Phys.Rev. C 106, 034314 (2022)

M.Guttormsen, K.O.Ay, M.Ozgur, E.Algin, A.C.Larsen, F.L.Bello Garrote, H.C.Berg, L.Crespo Campo, T.Dahl-Jacobsen, F.W.Furmyr, D.Gjestvang, A.Gorgen, T.W.Hagen, V.W.Ingeberg, B.V.Kheswa, I.K.B.Kullmann, M.Klintefjord, M.Markova, J.E.Midtbo, V.Modamio, W.Paulsen, L.G.Pedersen, T.Renstrom, E.Sahin, S.Siem, G.M.Tveten, M.Wiedeking

Evolution of the γ-ray strength function in neodymium isotopes

NUCLEAR REACTIONS 142,144,146,148,150Nd(p, p'γ), (d, pγ), E(p)=16.0 MeV, E(d)=13.5 MeV; measured Eγ, Iγ, E(p), pγ-coin using SiRi array of 64 ΔE-E particle telescopes, and OSCAR array of 15 to 30 LaBr3(Ce) scintillators for γ detection at the Oslo Cyclotron Laboratory. 142,144,145,146,147,148,149,150,151Nd; deduced energies, widths and cross sections of giant dipole resonances (GDR), pygmy-dipole resonances (PDR), scissors mode (SM) resonances, low-energy enhancement (LEE) structures, average probability for populating levels, γ strength functions as function of Eγ, (γSF(Eγ)) and nuclear level densities (NLD) using the OSLO method, integrated LEE and SM strengths B(M1), cross over from spherical to deformed shapes for neodymium isotopes.

doi: 10.1103/PhysRevC.106.034314
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2022MA47      Phys.Rev. C 106, 034322 (2022); Erratum Phys.Rev. C 109, 019901 (2024)

M.Markova, A.C.Larsen, P.von Neumann-Cosel, S.Bassauer, A.Gorgen, M.Guttormsen, F.L.Bello Garrote, H.C.Berg, M.M.Bjoroen, T.K.Eriksen, D.Gjestvang, J.Isaak, M.Mbabane, W.Paulsen, L.G.Pedersen, N.I.J.Pettersen, A.Richter, E.Sahin, P.Scholz, S.Siem, G.M.Tveten, V.M.Valsdottir, M.Wiedeking

Nuclear level densities and γ-ray strength functions in 120, 124Sn isotopes: Impact of Porter-Thomas fluctuations

NUCLEAR REACTIONS 120,124Sn(p, p'γ), E=16 MeV; measured Eγ, Iγ, E(p), pγ-coin, E-ΔE distributions using an array of 64 ΔE-E particle telescopes, and OSCAR array of 30 LaBr3(Ce) scintillators for γ detection at the Oslo Cyclotron Laboratory. 120,124Sn; deduced γ strength functions as function of Eγ, (γSF(Eγ)) and nuclear level densities (NLD) using the OSLO method and shape methods, magnitude of the Porter-Thomas (PT) fluctuations. 120,122,124Sn; deduced 0+ states, and first 2+ state in 124Sn. Comparison of nuclear level densities for J=1 states with the constant temperature (CT) model, back-shifted Fermi gas model (BSFG) model calculations, and predictions of the microscopic Hartree-Fock-BCS method, and with previous experimental results. Systematics of average total radiative widths and nuclear level densities (NLD) for 113,114,115,116,117,118,119,120,121,123,124Sn.

doi: 10.1103/PhysRevC.106.034322
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2022PO05      Phys.Rev. C 106, 015804 (2022)

F.Pogliano, A.C.Larsen, F.L.Bello Garrote, M.M.Bjoroen, T.K.Eriksen, D.Gjestvang, A.Gorgen, M.Guttormsen, K.C.W.Li, M.Markova, E.F.Matthews, W.Paulsen, L.G.Pedersen, S.Siem, T.Storebakken, T.G.Tornyi, J.E.Vevik

Indirect measurement of the (n, γ) 127Sb cross section

NUCLEAR REACTIONS 124Sn(α, pγ), E=24 MeV; measured Eγ, Iγ, Ep, Ip, pγ-coin. 127Sb; deduced gamma strength function (GSF), nuclear level densities (NLD). Oslo method analysis. 126Sb(n, γ), E ∼ 30 keV; deduced Maxwellian-averaged σ using obtained GSF and NLD. Comparison to other experimental data and TALYS calculations. MACS for 126Sb(n, γ) is compared with evaluated values from JINA REACLIB rates, TENDL-19, BRUSLIB, ENDF/B-VIII.0 and TALYS predictions . Oslo SCintillator ARray (OSCAR) and the Silicon Ring (SiRi) detector arrays at MC-35 Scanditronix cyclotron (OCL).

doi: 10.1103/PhysRevC.106.015804
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2022SP01      Phys.Rev. C 105, 024323 (2022)

P.Spagnoletti, P.A.Butler, L.P.Gaffney, K.Abrahams, M.Bowry, J.Cederkall, T.Chupp, G.de Angelis, H.De Witte, P.E.Garrett, A.Goldkuhle, C.Henrich, A.Illana, K.Johnston, D.T.Joss, J.M.Keatings, N.A.Kelly, M.Komorowska, J.Konki, T.Kroll, M.Lozano, B.S.Nara Singh, D.O'Donnell, J.Ojala, R.D.Page, L.G.Pedersen, C.Raison, P.Reiter, J.A.Rodriguez, D.Rosiak, S.Rothe, M.Scheck, M.Seidlitz, T.M.Shneidman, B.Siebeck, J.Sinclair, J.F.Smith, M.Stryjczyk, P.Van Duppen, S.Vinals, V.Virtanen, K.Wrzosek-Lipska, N.Warr, M.Zielinska

Coulomb excitation of 222Rn

NUCLEAR REACTIONS 120Sn, 60Ni(222Rn, 222Rn'), E=4.23 MeV/nucleon [secondary 222Rn beam produced in Th(p, X), E=1.4 GeV reaction]; measured reaction products, Eγ, Iγ, (particle)γ-coin. 222Rn; deduced levels, J, π, E1, E2 and E3 matrix elements, high-spin levels, bands, intrinsic quadrupole and octupole moments. GOSIA analysis of Coulomb excitation cross sections. Miniball HPGe array at HIE-ISOLDE. Systematics of quadrupole moments and other parameters in even-A Ra and Rn isotopes.

doi: 10.1103/PhysRevC.105.024323
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2021MA65      Phys.Rev.Lett. 127, 182501 (2021)

M.Markova, P.von Neumann-Cosel, A.C.Larsen, S.Bassauer, A.Gorgen, M.Guttormsen, F.L.Bello Garrote, H.C.Berg, M.M.Bjoroen, T.Dahl-Jacobsen, T.K.Eriksen, D.Gjestvang, J.Isaak, M.Mbabane, W.Paulsen, L.G.Pedersen, N.I.J.Pettersen, A.Richter, E.Sahin, P.Scholz, S.Siem, G.M.Tveten, V.M.Valsdottir, M.Wiedeking, F.Zeiser

Comprehensive Test of the Brink-Axel Hypothesis in the Energy Region of the Pygmy Dipole Resonance

NUCLEAR REACTIONS 117Sn(3He, α), E=38 MeV; 120,124Sn(p, p'), E=16 MeV; measured reaction products, Eα, Iα, Ep, Ip, Eγ, Iγ; deduced γ-ray strength functions (GSFs). Oslo method.

doi: 10.1103/PhysRevLett.127.182501
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2020BU01      Phys.Rev.Lett. 124, 042503 (2020)

P.A.Butler, L.P.Gaffney, P.Spagnoletti, K.Abrahams, M.Bowry, J.Cederkall, G.de Angelis, H.De Witte, P.E.Garrett, A.Goldkuhle, C.Henrich, A.Illana, K.Johnston, D.T.Joss, J.M.Keatings, N.A.Kelly, M.Komorowska, J.Konki, T.Kroll, M.Lozano, B.S.Nara Singh, D.O'Donnell, J.Ojala, R.D.Page, L.G.Pedersen, C.Raison, P.Reiter, J.A.Rodriguez, D.Rosiak, S.Rothe, M.Scheck, M.Seidlitz, T.M.Shneidman, B.Siebeck, J.Sinclair, J.F.Smith, M.Stryjczyk, P.Van Duppen, S.Vinals, V.Virtanen, N.Warr, K.Wrzosek-Lipska, M.Zielinska

Evolution of Octupole Deformation in Radium Nuclei from Coulomb Excitation of Radioactive 222Ra and 228Ra Beams

NUCLEAR REACTIONS 60Ni, 120Sn(222Ra, 222Ra'), (228Ra, 228Ra'), E=4.31 MeV/nucleon; measured reaction products, Eγ, Iγ. 222,228Ra; deduced γ-ray energies, dipole moments, quadrupole moments, E2 and E3 matrix elements, octupole collectivity.

doi: 10.1103/PhysRevLett.124.042503
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2020BU20      Nat. Commun. 11, 3560 (2020)

P.A.Butler, L.P.Gaffney, P.Spagnoletti, J.Konki, M.Scheck, J.F.Smith, K.Abrahams, M.Bowry, J.Cederkall, T.Chupp, G.de Angelis, H.De Witte, P.E.Garrett, A.Goldkuhle, C.Henrich, A.Illana, K.Johnston, D.T.Joss, J.M.Keatings, N.A.Kelly, M.Komorowska, T.Kroll, M.Lozano, B.S.Nara Singh, D.O'Donnell, J.Ojala, R.D.Page, L.G.Pedersen, C.Raison, P.Reiter, J.A.Rodriguez, D.Rosiak, S.Rothe, T.M.Shneidman, B.Siebeck, M.Seidlitz, J.Sinclair, M.Stryjczyk, P.Van Duppen, S.Vinals, V.Virtanen, N.Warr, K.Wrzosek-Lipska, M.Zielinska

Addendum: The observation of vibrating pear-shapes in radon nuclei

NUCLEAR REACTIONS 120Sn(222Rn, 222Rn'), E=4.23 MeV/nucleon; 120Sn(224Rn, 224Rn'), (226Rn, 226Rn'), E=5.08 MeV/nucleon; analyzed available data with updated computer codes. 222,224,226Rn; deduced additional γ-ray energies for high-spin transitions, J, π, level schemes, octupole-vibrational bands. Comparison with systematics of radon isotopes. Root analysis files.

doi: 10.1038/s41467-020-17309-y
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2019BU29      Nat. Commun. 10, 2473 (2019)

P.A.Butler, L.P.Gaffney, P.Spagnoletti, J.Konki, M.Scheck, J.F.Smith, K.Abrahams, M.Bowry, J.Cederkall, T.Chupp, G.de Angelis, H.De Witte, P.E.Garrett, A.Goldkuhle, C.Henrich, A.Illana, K.Johnston, D.T.Joss, J.M.Keatings, N.A.Kelly, M.Komorowska, T.Kroll, M.Lozano, B.S.Nara Singh, D.O'Donnell, J.Ojala, R.D.Page, L.G.Pedersen, C.Raison, P.Reiter, J.A.Rodriguez, D.Rosiak, S.Rothe, T.M.Shneidman, B.Siebeck, M.Seidlitz, J.Sinclair, M.Stryjczyk, P.Van Duppen, S.Vinals, V.Virtanen, N.Warr, K.Wrzosek-Lipska, M.Zielinska

The observation of vibrating pear-shapes in radon nuclei

NUCLEAR REACTIONS 120Sn(222Rn, 222Rn'), E=4.23 MeV/nucleon; 120Sn(224Rn, 224Rn'), (226Rn, 226Rn'), E=5.08 MeV/nucleon; measured reaction products, Eγ, Iγ, γ-γ-coin., X-rays. 222,224,226Rn; deduced γ-ray energies, J, π, level schemes, octupole-vibrational bands, high-spin transitions. Comparison with systematics of radon isotopes. HIE-ISOLDE accelerator, Miniball spectrometer.

doi: 10.1038/s41467-019-10494-5
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Note: The following list of authors and aliases matches the search parameter L.G.Pedersen: , L.G.PEDERSEN