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NSR database version of April 25, 2024.

Search: Author = S.Giraud

Found 15 matches.

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2024SP01      Phys.Rev. C 109, 014307 (2024)

M.Spieker, D.Bazin, S.Biswas, P.D.Cottle, P.J.Farris, A.Gade, T.Ginter, S.Giraud, K.W.Kemper, J.Li, S.Noji, J.Pereira, L.A.Riley, M.K.Smith, D.Weisshaar, R.G.T.Zegers

Proton removal from 73, 75Br to 72, 74Se at intermediate energies

doi: 10.1103/PhysRevC.109.014307
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2024TA07      Phys.Rev.Lett. 132, 072501 (2024)

O.B.Tarasov, A.Gade, K.Fukushima, M.Hausmann, E.Kwan, M.Portillo, M.Smith, D.S.Ahn, D.Bazin, R.Chyzh, S.Giraud, K.Haak, T.Kubo, D.J.Morrissey, P.N.Ostroumov, I.Richardson, B.M.Sherrill, A.Stolz, S.Watters, D.Weisshaar, T.Zhang

Observation of New Isotopes in the Fragmentation of 198Pt at FRIB

NUCLEAR REACTIONS C(198Pt, X)182Tm/183Tm/186Yb/187Yb/190Lu, E=186 MeV/nucleon; measured reaction products, TOF; deduced new isotopes, yields. The Facility for Rare Isotope Beams (FRIB) using the Advanced Rare Isotope Separator (ARIS).

doi: 10.1103/PhysRevLett.132.072501
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Data from this article have been entered in the XUNDL database. For more information, click here.

2023GI02      Nucl.Instrum.Methods Phys.Res. A1051, 168213 (2023)

S.Giraud, J.C.Zamora, R.G.T.Zegers, Y.Ayyad, D.Bazin, W.Mittig, A.Carls, M.DeNudt, Z.Rahman

Simulations and analysis tools for charge-exchange (d, 2He) reactions in inverse kinematics with the AT-TPC

NUCLEAR REACTIONS 2H(14O, 2p), E=100 MeV/nucleon; calculated σ(θ, E), simulated the active-target time projection chamber (AT-TPC) response.

doi: 10.1016/j.nima.2023.168213
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2023GI06      Phys.Rev.Lett. 130, 232301 (2023)

S.Giraud, J.C.Zamora, R.G.T.Zegers, D.Bazin, Y.Ayyad, S.Bacca, S.Beceiro Novo, B.A.Brown, A.Carls, J.Chen, M.Cortesi, M.DeNudt, G.Hagen, C.Hultquist, C.Maher, W.Mittig, F.Ndayisabye, S.Noji, S.J.Novario, J.Pereira, Z.Rahman, J.Schmitt, M.Serikow, L.J.Sun, J.Surbrook, N.Watwood, T.Wheeler

β+ Gamow-Teller Strengths from Unstable 14O via the (d, 2He) Reaction in Inverse Kinematics

NUCLEAR REACTIONS 2H(14O, 2He), E=105 MeV/nucleon; measured reaction products. 14O; deduced σ(θ), B(GT) or Gamow-Teller transition strength. Comparison with available data. The Coupled Cyclotron Facility at the National Superconducting Cyclotron Laboratory (NSCL), MSU.

doi: 10.1103/PhysRevLett.130.232301
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2023NI10      Phys.Rev.Lett. 131, 222503 (2023)

L.Nies, L.Canete, D.D.Dao, S.Giraud, A.Kankainen, D.Lunney, F.Nowacki, B.Bastin, M.Stryjczyk, P.Ascher, K.Blaum, R.B.Cakirli, T.Eronen, P.Fischer, M.Flayol, V.Girard Alcindor, A.Herlert, A.Jokinen, A.Khanam, U.Koster, D.Lange, I.D.Moore, M.Muller, M.Mougeot, D.A.Nesterenko, H.Penttila, C.Petrone, I.Pohjalainen, A.de Roubin, V.Rubchenya, Ch.Schweiger, L.Schweikhard, M.Vilen, J.Aysto

Further Evidence for Shape Coexistence in 79Znm near Doubly Magic 78Ni

ATOMIC MASSES 79Zn; measured frequencies, TOF; deduced the excitation energy of the 1/2+ isomer, the bandhead of a low-lying deformed structure akin to a predicted low-lying deformed band, shape coexistence. Comparison with state-of-the-art shell-model diagonalizations, complemented with discrete nonorthogonal shell-model calculations. The time-of-flight ion cyclotron resonance (TOF-ICR) method, the JYFLTRAP double Penning trap at the ion guide isotope separator on-line (IGISOL) facility in Jyvaskyla (Finland), and the multi-reflection time-of-flight mass spectrometer (MR-TOF MS) of ISOLTRAP at ISOLDE at CERN (Switzerland).

doi: 10.1103/PhysRevLett.131.222503
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2023SP02      Phys.Lett. B 841, 137932 (2023)

M.Spieker, S.E.Agbemava, D.Bazin, S.Biswas, P.D.Cottle, P.J.Farris, A.Gade, T.Ginter, S.Giraud, K.W.Kemper, J.Li, W.Nazarewicz, S.Noji, J.Pereira, L.A.Riley, M.Smith, D.Weisshaar, R.G.T.Zegers

Hexadecapole strength in the rare isotopes 74, 76Kr

NUCLEAR REACTIONS 1H(74Kr, 74Kr'), (76Kr, 76Kr'), E(cm)=100 MeV, [secondary 74,76Kr beams from 9Be(78Kr, X), E=150 MeV/nucleon primary reaction, followed by separation of fragments using A1900 separator]; measured Doppler-corrected Eγ, Iγ, (particle)γ-coin using NSCL-MSU using NSCL/Ursinus Liquid Hydrogen (LH2) Target, eight GRETINA modules of 36-fold segmented HPGe detectors for γ radiation, and S800 spectrograph for projectile-like reaction residues. 74,76Kr; deduced levels, Jπ, β2 for the first 2+ state and β4 and B(E4)(W.u.) for the first 4+ state from inelastic proton scattering experiments in inverse kinematics. Comparison to coupled-channels calculations, and nuclear density functional theory (DFT) calculations using the Skyrme SkM* and UNEDF1 energy density functionals, covariant NL3* and DD-PC1 energy density functionals. Systematics and theoretical predictions of β2, β4 and B(E4)(W.u.) for 74,76,78,80,82,84,86Kr.

doi: 10.1016/j.physletb.2023.137932
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Data from this article have been entered in the XUNDL database. For more information, click here.

2022AY04      Phys.Rev.Lett. 129, 012501 (2022)

Y.Ayyad, W.Mittig, T.Tang, B.Olaizola, G.Potel, N.Rijal, N.Watwood, H.Alvarez-Pol, D.Bazin, M.Caamano, J.Chen, M.Cortesi, B.Fernandez-DomInguez, S.Giraud, P.Gueye, S.Heinitz, R.Jain, B.P.Kay, E.A.Maugeri, B.Monteagudo, F.Ndayisabye, S.N.Paneru, J.Pereira, E.Rubino, C.Santamaria, D.Schumann, J.Surbrook, L.Wagner, J.C.Zamora, V.Zelevinsky

Evidence of a Near-Threshold Resonance in 11B Relevant to the β-Delayed Proton Emission of 11Be

NUCLEAR REACTIONS 1H(10Be, X)11B, E=350 keV/nucleon; measured reaction products, Ep, Ip, Eα, Iα. 11B; deduced σ(θ), resonance parameters. R-matrix analysis. The ReA3 reaccelerator facility of the National Superconducting Cyclotron Laboratory.

doi: 10.1103/PhysRevLett.129.012501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2788. Data from this article have been entered in the XUNDL database. For more information, click here.

2022GI05      Phys.Rev. C 105, L051301 (2022)

V.Girard Alcindor, A.Mercenne, I.Stefan, F.de Oliveira Santos, N.Michel, M.Ploszajczak, M.Assie, A.Lemasson, E.Clement, F.Flavigny, A.Matta, D.Ramos, M.Rejmund, J.Dudouet, D.Ackermann, P.Adsley, M.Assuncao, B.Bastin, D.Beaumel, G.Benzoni, R.Borcea, A.J.Boston, D.Brugnara, L.Caceres, B.Cederwall, I.Celikovic, V.Chudoba, M.Ciemala, J.Collado, F.C.L.Crespi, G.D'Agata, G.De France, F.Delaunay, C.Diget, C.Domingo-Pardo, J.Eberth, C.Fougeres, S.Franchoo, F.Galtarossa, A.Georgiadou, J.Gibelin, S.Giraud, V.Gonzalez, N.Goyal, A.Gottardo, J.Goupil, S.Grevy, V.Guimaraes, F.Hammache, L.J.Harkness-Brennan, H.Hess, N.Jovancevic, D.S.Judson Oliver, O.Kamalou, A.Kamenyero, J.Kiener, W.Korten, S.Koyama, M.Labiche, L.Lalanne, V.Lapoux, S.Leblond, A.Lefevre, C.Lenain, S.Leoni, H.Li, A.Lopez-Martens, A.Maj, I.Matea, R.Menegazzo, D.Mengoni, A.Meyer, B.Million, B.Monteagudo, P.Morfouace, J.Mrazek, M.Niikura, J.Piot, Zs.Podolyak, C.Portail, A.Pullia, B.Quintana, F.Recchia, P.Reiter, K.Rezynkina, T.Roger, J.S.Rojo, F.Rotaru, M.D.Salsac, A.M.Sanchez-Benitez, E.Sanchis, M.Senyigit, N.de Sereville, M.Siciliano, J.Simpson, D.Sohler, O.Sorlin, M.Stanoiu, C.Stodel, D.Suzuki, C.Theisen, D.Thisse, J.C.Thomas, P.Ujic, J.J.Valiente-Dobon, M.Zielinska

New narrow resonances observed in the unbound nucleus 15F

NUCLEAR REACTIONS 1H(14O, p), E=7.64 MeV/nucleon; 1H(14O, 2p), E=7.42 MeV/nucleon; measured reaction products Ep, Ip, Eγ, Iγ, protons angular distributions, pp-coin, γγ-coin, pγ-coin; deduced σ(θ), resonances properties of 14O+p system - energy, spin and width, spectroscopic factors, major amplitudes of channels. 15F; deduced levels, J, π, configurations. Data has been analyzed and interpreted in the framework of the Gamow shell model (GSM) with the coupled-channel representation (GSMCC). Beam provided by SPIRAL1 facility (GANIL). Detectors: MUST2 (telescope composed of DSSD and CsI array) for (14O, p) reaction and MUGAST array (MUST2+VAMOS magnetic spectrometer+AGATA HPGE-array).

doi: 10.1103/PhysRevC.105.L051301
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Data from this article have been entered in the XUNDL database. For more information, click here.

2022GI06      Phys.Rev. C 105, 055801 (2022)

S.Giraud, R.G.T.Zegers, B.A.Brown, J.-M.Gabler, J.Lesniak, J.Rebenstock, E.M.Ney, J.Engel, A.Ravlic, N.Paar

Finite-temperature electron-capture rates for neutron-rich nuclei near N=50 and effects on core-collapse supernova simulations

RADIOACTIVITY 86Kr(EC); calculated Gamow-Teller strength distribution, EC-rates for various energies of initial states, average shell occupation. N=44-54(EC); Z=26-36(EC); calculated EC-rates. Finite-temperature proton-neutron relativistic QRPA (FT-PNRQRPA), finite-temperature QRPA (FT-QRPA) and shell-model calculations. Obtained finite-temperature electron-capture rates applied in one-dimensional core-collapse simulations.

doi: 10.1103/PhysRevC.105.055801
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2022GI08      Phys.Lett. B 833, 137309 (2022)

S.Giraud, L.Canete, B.Bastin, A.Kankainen, A.F.Fantina, F.Gulminelli, P.Ascher, T.Eronen, V.Girard Alcindor, A.Jokinen, A.Khanam, I.D.Moore, D.A.Nesterenko, F.de Oliveira Santos, H.Penttila, C.Petrone, I.Pohjalainen, A.De Roubin, V.A.Rubchenya, M.Vilen, J.Aysto

Mass measurements towards doubly magic 78Ni: Hydrodynamics versus nuclear mass contribution in core-collapse supernovae

ATOMIC MASSES 74,75Ni, 76,76m,77,78Cu, 79,79mZn; measured cyclotron resonance frequencies using time-of-flight ion-cyclotron-resonance (TOF-ICR) technique at the ISISOL-JYFLTRAP facility of the University of Jyvaskyla; deduced mass excesses, and compared with previously available experimental values and with AME2020 evaluation. Isotopes produced in U(p, F), E=35 MeV at the Ion-Guide Isotope Separator On-Line (IGISOL) facility in Jyvaskyla, followed by mass separation of fission fragments. Z=26-39, N=44-51; systematics of experimental and theoretical values of two-neutron shell-gap energies.

doi: 10.1016/j.physletb.2022.137309
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2022SP04      Phys.Rev. C 106, 054305 (2022)

M.Spieker, L.A.Riley, P.D.Cottle, K.W.Kemper, D.Bazin, S.Biswas, P.J.Farris, A.Gade, T.Ginter, S.Giraud, J.Li, S.Noji, J.Pereira, M.Smith, D.Weisshaar, R.G.T.Zegers

Investigation of octupole collectivity near the A = 72 shape-transitional point

NUCLEAR REACTIONS 1H(76Kr, p), (74Kr, p), (72Se, p), E(cm)≈ 100 MeV/nucleon; measured Eγ, Iγ, γγ-coin, angular distribution; deduced levels, J, π, B(E2), B(E3). Comparison to theoretical calculations performed in the framework of the configuration-mixing sdf IBM mapping approach. Systematics of B(E3) transition strength in Kr, Se and Ge isotopes. Established two regions of distinct octupole strengths with a sudden strength increase around the A = 72 prolate-oblate-triaxial shape-transitional point. Ursinus liquid hydrogen target coupled to 8 GRETINA modules, containing four, 36-fold segmented HPGe detectors each. Beams produced from a 150-MeV/nucleon 78Kr primary beam in projectile fragmentation on 9Be target at Coupled Cyclotron Facility NSCL.

doi: 10.1103/PhysRevC.106.054305
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2021GA15      Phys.Rev.Lett. 126, 152701 (2021)

B.Gao, S.Giraud, K.A.Li, A.Sieverding, R.G.T.Zegers, X.Tang, J.Ash, Y.Ayyad-Limonge, D.Bazin, S.Biswas, B.A.Brown, J.Chen, M.DeNudt, P.Farris, J.M.Gabler, A.Gade, T.Ginter, M.Grinder, A.Heger, C.Hultquist, A.M.Hill, H.Iwasaki, E.Kwan, J.Li, B.Longfellow, C.Maher, F.Ndayisabye, S.Noji, J.Pereira, C.Qi, J.Rebenstock, A.Revel, D.Rhodes, A.Sanchez, J.Schmitt, C.Sumithrarachchi, B.H.Sun, D.Weisshaar

New 59Fe Stellar Decay Rate with Implications for the 60Fe Radioactivity in Massive Stars

NUCLEAR REACTIONS 59Co(t, 3He)59Fe, E=115 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, σ(θ), B(GT), β-decay rates. Comparison with stellar evolution calculations.

doi: 10.1103/PhysRevLett.126.152701
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Data from this article have been entered in the XUNDL database. For more information, click here.

2020CA08      Phys.Rev. C 101, 041304 (2020), Erratum Phys.Rev. C 103, 029901 (2021)

L.Canete, S.Giraud, A.Kankainen, B.Bastin, F.Nowacki, A.Poves, P.Ascher, T.Eronen, V.Alcindor, A.Jokinen, A.Khanam, I.D.Moore, D.A.Nesterenko, F.De Oliveira Santos, H.Penttila, C.Petrone, I.Pohjalainen, A.de Roubin, V.A.Rubchenya, M.Vilen, J.Aysto

Precision mass measurements of 67Fe and 69, 70Co: Nuclear structure toward N = 40 and impact on r-process reaction rates

ATOMIC MASSES 67Fe, 69,69m,70Co; measured mass excesses using time of flight-ion cyclotron resonance technique with the JYFLTRAP double Penning trap mass spectrometer. 69mCo; deduced level energy of 1/2- intruder state. Comparison with evaluated data in AME2016. Systematics of S(2n) values and two-neutron shell gap parameter for Z=25-28, N=35-45 nuclei.

NUCLEAR STRUCTURE 67,69,71Co; calculated levels, J, π using shell-model for the spherical and 1/2- intruder bands. Comparison with experimental data.

NUCLEAR REACTIONS 68Fe, 69Co(γ, n), T=0.5-5 GK; calculated astrophysical reaction rates, and mass-related uncertainties for the astrophysical r process calculations.

doi: 10.1103/PhysRevC.101.041304
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Data from this article have been entered in the XUNDL database. For more information, click here.

2020PA01      Phys.Rev. C 101, 015803 (2020)

A.Pascal, S.Giraud, A.F.Fantina, F.Gulminelli, J.Novak, M.Oertel, A.R.Raduta

Impact of electron capture rates for nuclei far from stability on core-collapse supernovae

NUCLEAR STRUCTURE Z=10-60, N=20-114; Z=15-55, N-16-90; calculated electron-capture (EC) rates for ≈170 different nuclear species around 86Kr using self-consistent numerical simulations of core-collapse supernovae (CCSN), with hydrodynamic codes COCONUT and ACCEPT.

doi: 10.1103/PhysRevC.101.015803
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2018GR04      Phys.Rev. C 97, 035807 (2018)

G.Grams, S.Giraud, A.F.Fantina, F.Gulminelli

Distribution of nuclei in equilibrium stellar matter from the free-energy density in a Wigner-Seitz cell

doi: 10.1103/PhysRevC.97.035807
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