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NSR database version of April 24, 2024.

Search: Author = J.Vargas

Found 23 matches.

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2022CH38      Phys.Rev. C 106, 024618 (2022)

A.Chatillon, J.Taieb, A.Heinz, H.Alvarez-Pol, L.Audouin, Y.Ayyad, G.Belier, J.Benlliure, G.Boutoux, M.Caamano, E.Casarejos, D.Cortina-Gil, A.Ebran, F.Farget, B.Fernandez-Dominguez, T.Gorbinet, L.Grente, H.T.Johansson, B.Jurado, A.Kelic-Heil, N.Kurz, B.Laurent, J.-F.Martin, C.Nociforo, C.Paradela, E.Pellereau, S.Pietri, A.Prochazka, J.L.Rodriguez-Sanchez, D.Rossi, H.Simon, L.Tassan-Got, J.Vargas, B.Voss, H.Weick

Influence of proton and neutron deformed shells on the asymmetric fission of thorium isotopes

NUCLEAR REACTIONS 222,223,225,226,229,230Th, 228,229,231,232Pa, 234,235,238U, 238Np(γ, F), E=13-14 MeV; 219,223,227Ac(γ, F), E ≈ 16 MeV; analyzed elemental, isotonic, and isobaric experimental fission fragment yields in Coulex experiments obtained at R3B/SOFIA setups (2019CH20); deduced average value of the atomic number of the light and heavy fission fragments, centroid positions of the light and heavy peaks of the isotonic yields, average total prompt-neutron multiplicity. Discussed the influence of deformed neutron and proton shells on the fission process.

doi: 10.1103/PhysRevC.106.024618
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2022KA35      Phys.Rev.Lett. 129, 142502 (2022)

S.Kaur, R.Kanungo, W.Horiuchi, G.Hagen, J.D.Holt, B.S.Hu, T.Miyagi, T.Suzuki, F.Ameil, J.Atkinson, Y.Ayyad, S.Bagchi, D.Cortina-Gil, I.Dillmann, A.Estrade, A.Evdokimov, F.Farinon, H.Geissel, G.Guastalla, R.Janik, R.Knobel, J.Kurcewicz, Y.A.Litvinov, M.Marta, M.Mostazo, I.Mukha, C.Nociforo, H.J.Ong, T.Otsuka, S.Pietri, A.Prochazka, C.Scheidenberger, B.Sitar, P.Strmen, M.Takechi, J.Tanaka, I.Tanihata, S.Terashima, J.Vargas, H.Weick, J.S.Winfield

Proton Distribution Radii of 16-24O: Signatures of New Shell Closures and Neutron Skin

NUCLEAR REACTIONS 12C(16O, X), (18O, X), (19O, X), (20O, X), (21O, X), (22O, X), (23O, X), (24O, X), E<1 GeV/nucleon; measured reaction products. 16,18,20,21,22,23,24O; deduced charge changing σ, root mean square proton and matter radii, neutron skin thickness, shell closure. Comparison with with ab initio calculations employing the chiral NNLO sat interaction, shell model predictions. The fragment separator FRS at GSI.

doi: 10.1103/PhysRevLett.129.142502
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD8052. Data from this article have been entered in the XUNDL database. For more information, click here.


2022RO11      Phys.Rev. C 106, 014618 (2022)

J.L.Rodriguez-Sanchez, J.Benlliure, I.Vidana, H.Lenske, J.Vargas, C.Scheidenberger, H.Alvarez-Pol, J.Atkinson, T.Aumann, Y.Ayyad, S.Beceiro Novo, K.Boretzky, M.Caamano, E.Casarejos, D.Cortina-Gil, P.Diaz Fernandez, A.Estrade, H.Geissel, E.Haettner, A.Kelic-Heil, Yu.A.Litvinov, C.Paradela, D.Perez-Loureiro, S.Pietri, A.Prochazka, M.Takechi, Y.K.Tanaka, H.Weick, J.S.Winfield

Systematic study of Δ(1232) resonance excitations using single isobaric charge-exchange reactions induced by medium-mass projectiles of Sn

NUCLEAR REACTIONS 1H, 12C, Cu, Pb(112Sn, 112In), (112Sn, 112Sb), 1H, C(124Sn, 124Sb), E=1 GeV/nucleon; measured reaction products; deduced total σ, quasielastic and inelastic σ; missing energy spectra. Observed energy shift for the Δ-resonance peak of about 63 ± 5 MeV and quenching of the quasielastic component. Comparison to theoretical predictions using random phase approximation (RPA) with Giessen energy density functional (GiEDF). FRS spectrometer with SIS-18 synchrotron beam (GSI).

doi: 10.1103/PhysRevC.106.014618
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2021MA68      Phys.Rev. C 104, 044602 (2021)

J.-F.Martin, J.Taieb, G.Boutoux, A.Chatillon, T.Gorbinet, E.Pellereau, L.Audouin, A.Heinz, H.Alvarez-Pol, Y.Ayyad, G.Belier, J.Benlliure, M.Caamano, E.Casarejos, D.Cortina-Gil, A.Ebran, F.Farget, B.Fernandez-Dominguez, L.Grente, H.T.Johansson, B.Jurado, A.Kelic-Heil, N.Kurz, B.Laurent, C.Nociforo, C.Paradela, S.Pietri, A.Prochazka, J.L.Rodriguez-Sanchez, D.Rossi, H.Simon, L.Tassan-Got, J.Vargas, B.Voss, H.Weick

Fission-fragment yields and prompt-neutron multiplicity for Coulomb-induced fission of 234, 235U and 237, 238Np

NUCLEAR REACTIONS 238U(234U, F), (235U, F), (237Np, F), (238Np, F), E=555 MeV/nucleon in the center of the target, [secondary 234,235U, 237,238Np beams from 9Be(238U, X), E=1 GeV/nucleon primary reaction, followed by separation of reaction products using FRS separator at GSI facility]; measured fission fragments, (fragment)(fragment)-coin, Coulomb excitation induced fission σ(A, Z), electromagnetic-induced fission yields, mass and charge distribution of fission fragments, isotonic, isobaric, and isotopic fission yields produced for Coulomb-induced fission using the Reactions with Relativistic Radioactive Beams/Studies On FIssion with Aladin (R3B/SOFIA) apparatus at GSI facility. 234,235,238U, 237,238Np(γ, F), virtual photons from Coulomb excitation; deduced yields Y(A, Z), σ(A, Z), prompt-neutron and total neutron multiplicities ν(A, Z) for A=77-157, Z=28-64, and N=45-97 fragments: 77,78,79,80,81,82,83,84Ge, 78,79,80,81,82,83,84,85,86,87As, 80,81,82,83,84,85,86,87,88,89Se, 83,84,85,86,87,88,89,90,91Br, 85,86,87,88,89,90,91,92,93Kr, 87,88,89,90,91,92,93,94,95,96Rb, 90,91,92,93,94,95,96,97,98Sr, 92,93,94,95,96,97,98,99,100,101Y, 95,96,97,98,99,100,101,102,103Zr, 97,98,99,100,101,102,103,104,105,106Nb, 100,101,102,103,104,105,106,107,108Mo, 103,104,105,106,107,108,109,110,111Tc, 102,103,104,105,106,107,108,109,110,111,112,113,114Ru, 108,109,110,111,112,113,114,115,116,117Rh, 110,111,112,113,114,115,116,117,118,119,120Pd, 113,114,115,116,117,118,119,120,121,122Ag, 115,116,117,118,119,120,121,122,123,124,125,126Cd, 118,119,120,121,122,123,124,125,126,127,128,129In, 121,122,123,124,125,126,127,128,129,130,131,132,133Sn, 124,125,126,127,128,129,130,131,132,133,134,135Sb, 127,128,129,130,131,132,133,134,135,136,137Te, 130,131,132,133,134,135,136,137,138,139,140I, 132,133,134,135,136,137,138,139,140,141,142Xe, 135,136,137,138,139,140,141,142,143,144Cs, 137,138,139,140,141,142,143,144,145,146,147Ba, 139,140,141,142,143,144,145,146,147,148,149,150La, 142,143,144,145,146,147,148,149,150,151,152Ce, 144,145,146,147,148,149,150,151,152,153,154Pr, 146,147,148,149,150,151,152,153,154,155,156,157Nd, 151,152,153,154,155,156, and 157Pm, average values of atomic, neutron, and mass numbers for the light and heavy fission fragments, proton even-odd staggering, neutron excess of pre-neutron-evaporation fission fragments produced for Coulomb-induced fission. Comparison with previous measurements using (γ, F) and thermal-neutron induced fission. Comparison with theoretical reaction model calculations using GEF-2019V1.1 code, unchanged charge density (UCD) approach, and by fission treated as an adiabatic process in a Fermi gas (FA). Numerical values of yields, cross sections and neutron multiplicities are listed in the Supplemental Material of this work.

doi: 10.1103/PhysRevC.104.044602
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2020CH18      Phys.Rev.Lett. 124, 202502 (2020)

A.Chatillon, J.Taieb, H.Alvarez-Pol, L.Audouin, Y.Ayyad, G.Belier, J.Benlliure, G.Boutoux, M.Caamano, E.Casarejos, D.Cortina-Gil, A.Ebran, F.Farget, B.Fernandez-Dominguez, T.Gorbinet, L.Grente, A.Heinz, H.T.Johansson, B.Jurado, A.Kelic-Heil, N.Kurz, B.Laurent, J.-F.Martin, C.Nociforo, C.Paradela, E.Pellereau, S.Pietri, A.Prochazka, J.L.Rodriguez-Sanchez, D.Rossi, H.Simon, L.Tassan-Got, J.Vargas, B.Voss, H.Weick

Evidence for a New Compact Symmetric Fission Mode in Light Thorium Isotopes

NUCLEAR REACTIONS 222,226,230Th(γ, F)1NN, E not given; measured reaction products, En, In; deduced prompt-neutron emission probability, σ(E), yields.

doi: 10.1103/PhysRevLett.124.202502
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetG0076.


2020RO12      Phys.Lett. B 807, 135565 (2020)

J.L.Rodriguez-Sanchez, J.Benlliure, I.Vidana, H.Lenske, C.Scheidenberger, J.Vargas, H.Alvarez-Pol, J.Atkinson, T.Aumann, Y.Ayyad, S.Beceiro Novo, K.Boretzky, M.Caamano, E.Casarejos, D.Cortina-Gil, P.Diaz Fernandez, A.Estrade, H.Geissel, E.Haettner, A.Kelic-Heil, Yu.A.Litvinov, C.Paradela, D.Perez-Loureiro, S.Pietri, A.Prochazka, M.Takechi, Y.K.Tanaka, H.Weick, J.S.Winfield

Study of Δ excitations in medium-mass nuclei with peripheral heavy ion charge-exchange reactions

NUCLEAR REACTIONS C(112Sn, 112In), E=1 GeV/nucleon; analyzed available data; deduced missing spectra, change in the relative magnitude between the contribution of the excitation of the resonance in the target and in the projectile.

doi: 10.1016/j.physletb.2020.135565
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2019BA11      Phys.Lett. B 790, 251 (2019)

S.Bagchi, R.Kanungo, W.Horiuchi, G.Hagen, T.D.Morris, S.R.Stroberg, T.Suzuki, F.Ameil, J.Atkinson, Y.Ayyad, D.Cortina-Gil, I.Dillmann, A.Estrade, A.Evdokimov, F.Farinon, H.Geissel, G.Guastalla, R.Janik, S.Kaur, R.Knobel, J.Kurcewicz, Yu.A.Litvinov, M.Marta, M.Mostazo, I.Mukha, C.Nociforo, H.J.Ong, S.Pietri, A.Prochazka, C.Scheidenberger, B.Sitar, P.Strmen, M.Takechi, J.Tanaka, Y.Tanaka, I.Tanihata, S.Terashima, J.Vargas, H.Weick, J.S.Winfield

Neutron skin and signature of the N = 14 shell gap found from measured proton radii of 17-22N

NUCLEAR REACTIONS C(14N, X), (15N, X), (17N, X), (18N, X), (19N, X), (20N, X), (21N, X), (22N, X), E=851-932 MeV/nucleon; measured reaction products. 14,15,17,18,19,20,21,22N; deduced σ, root mean square point proton and matter radii, unconventional shell gap at N = 14 arising from the attractive proton–neutron tensor interaction. Comparison with ab initio calculations.

doi: 10.1016/j.physletb.2019.01.024
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0941.


2019CH20      Phys.Rev. C 99, 054628 (2019)

A.Chatillon, J.Taieb, H.Alvarez-Pol, L.Audouin, Y.Ayyad, G.Belier, J.Benlliure, G.Boutoux, M.Caamano, E.Casarejos, D.Cortina-Gil, A.Ebran, F.Farget, B.Fernandez-Dominguez, T.Gorbinet, L.Grente, A.Heinz, H.T.Johansson, B.Jurado, A.Kelic-Heil, N.Kurz, B.Laurent, J.-F.Martin, C.Nociforo, C.Paradela, E.Pellereau, S.Pietri, A.Prochazka, J.L.Rodriguez-Sanchez, H.Simon, L.Tassan-Got, J.Vargas, B.Voss, H.Weick

Experimental study of nuclear fission along the thorium isotopic chain: From asymmetric to symmetric fission

NUCLEAR REACTIONS 208Pb, 238U(219Ac, F), (220Ac, F), (223Ac, F), (227Ac, F), (221Th, F), (222Th, F), (223Th, F), (225Th, F), (226Th, F), (229Th, F), (230Th, F), (228Pa, F), (229Pa, F), (219Ac, F), (220Ac, F), (223Ac, F), (227Ac, F), (221Th, F), (222Th, F), (223Th, F), (225Th, F), (226Th, F), (229Th, F), (230Th, F), (228Pa, F), (229Pa, F), E=551.7-568.9 MeV/nucleon, [secondary Ac and Th beams from 9Be(238U, X), E=1 GeV/nucleon primary reaction, and using FRS separator at GSI facility for separation of reaction products]; measured fission fragments, (fragment)(fragment)-coin, Coulomb excitation induced fission σ, differential Coulomb excitation σ(θ), electromagnetic-induced fission yields, mass and charge distribution of fission fragments, isotonic and isobaric fission yields using the Reactions with Relativistic Radioactive Beams/Studies On FIssion with Aladin (R3B/SOFIA) apparatus at GSI accelerator facility. Comparison with local even-odd staggering, previous measurements using either the same reaction mechanism and/or thermal-neutron induced fission.

doi: 10.1103/PhysRevC.99.054628
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetG0074.


2017PE08      Phys.Rev. C 95, 054603 (2017)

E.Pellereau, J.Taieb, A.Chatillon, H.Alvarez-Pol, L.Audouin, Y.Ayyad, G.Belier, J.Benlliure, G.Boutoux, M.Caamano, E.Casarejos, D.Cortina-Gil, A.Ebran, F.Farget, B.Fernandez-Dominguez, T.Gorbinet, L.Grente, A.Heinz, H.Johansson, B.Jurado, A.Kelic-Heil, N.Kurz, B.Laurent, J.-F.Martin, C.Nociforo, C.Paradela, S.Pietri, J.L.Rodriguez-Sanchez, K.-H.Schmidt, H.Simon, L.Tassan-Got, J.Vargas, B.Voss, H.Weick

Accurate isotopic fission yields of electromagnetically induced fission of 238U measured in inverse kinematics at relativistic energies

NUCLEAR REACTIONS 238U(238U, F), E=650 MeV/nucleon; measured mass and charge coincidences, elemental, isobaric and isotopic yields and mass distribution of fission fragments of Z=29-62, N=43-95, A=71-156 in 238U(γ, F) using the SOFIA experimental setup and around the ALADIN magnet at GSI. Comparison with the GEF model calculations, and with 238U(n, F) data in ENDF-BVII.1 and JEFF.3.1.

doi: 10.1103/PhysRevC.95.054603
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetG0077.


2017RO22      Phys.Rev. C 96, 034303 (2017)

J.L.Rodriguez-Sanchez, J.Benlliure, C.A.Bertulani, J.Vargas, Y.Ayyad, H.Alvarez-Pol, J.Atkinson, T.Aumann, S.Beceiro Novo, K.Boretzky, M.Caamano, E.Casarejos, D.Cortina-Gil, J.Diaz-Cortes, P.Diaz Fernandez, A.Estrade, H.Geissel, A.Kelic-Heil, Yu.A.Litvinov, M.Mostazo, C.Paradela, D.Perez-Loureiro, S.Pietri, A.Prochazka, M.Takechi, H.Weick, J.S.Winfield

Knockout and fragmentation reactions using a broad range of tin isotopes

NUCLEAR REACTIONS C(112Sn, X)103Rh/104Rh/105Rh/106Rh/107Rh/105Pd/106Pd/107Pd/108Pd/107Ag/108Ag/109Ag/110Ag/109Cd/110Cd/111Cd, E=1 GeV/nucleon; measured production cross sections of the most neutron-rich residues in the fragmentation of 112Sn beam at GSI. C(124Sn, 123Sn), (124Sn, 123In), (120Sn, 119Sn), (120Sn, 119In), (120Sn, 118Cd), (112Sn, 111Sn), (112Sn, 111In), (110Sn, 109Sn), (110Sn, 109In), (110Sn, 108Cd), E=1 GeV/nucleon; measured One- and two-nucleon-removal cross sections. Comparison with previous experimental data and with Glauber model calculations.

doi: 10.1103/PhysRevC.96.034303
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2016KA37      Phys.Rev.Lett. 117, 102501 (2016)

R.Kanungo, W.Horiuchi, G.Hagen, G.R.Jansen, P.Navratil, F.Ameil, J.Atkinson, Y.Ayyad, D.Cortina-Gil, I.Dillmann, A.Estrade, A.Evdokimov, F.Farinon, H.Geissel, G.Guastalla, R.Janik, M.Kimura, R.Knobel, J.Kurcewicz, Yu.A.Litvinov, M.Marta, M.Mostazo, I.Mukha, C.Nociforo, H.J.Ong, S.Pietri, A.Prochazka, C.Scheidenberger, B.Sitar, P.Strmen, Y.Suzuki, M.Takechi, J.Tanaka, I.Tanihata, S.Terashima, J.Vargas, H.Weick, J.S.Winfield

Proton Distribution Radii of 12-19C Illuminate Features of Neutron Halos

NUCLEAR REACTIONS Be(20Ne, X), (40Ar, X)12C/13C/14C/15/16C/17C/18C/19C, E=1 GeV/nucleon; measured reaction products; deduced σ, root-mean-square proton and matter radii, neutron skin thickness. Comparison with ab initio calculations.

doi: 10.1103/PhysRevLett.117.102501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2311. Data from this article have been entered in the XUNDL database. For more information, click here.


2016RO20      Phys.Rev. C 94, 034605 (2016)

J.L.Rodriguez-Sanchez, J.Benlliure, C.Paradela, Y.Ayyad, E.Casarejos, H.Alvarez-Pol, L.Audouin, G.Belier, G.Boutoux, A.Chatillon, D.Cortina-Gil, T.Gorbinet, A.Heinz, A.Kelic-Heil, B.Laurent, J.-F.Martin, E.Pellereau, B.Pietras, D.Ramos, C.Rodriguez-Tajes, D.M.Rossi, H.Simon, J.Taieb, J.Vargas, B.Voss

Light charged particles emitted in fission reactions induced by protons on 208Pb

NUCLEAR REACTIONS 1H(208Pb, F), E=370, 500, 650 MeV/nucleon; 27Al(208Pb, F), E=500 MeV/nucleon; measured light charged particles, fission fragments, (light charged particles)(fission fragments)-coin using SOFIA detection system at GSI facility; deduced multiplicity distribution of particles with Z=1, width of the atomic-number distribution of the fission fragments as function of the atomic number of the light charged particle, transient time and dissipative effects. Comparison with model calculations.

doi: 10.1103/PhysRevC.94.034605
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2362.


2016RO29      Phys.Rev. C 94, 061601 (2016)

J.L.Rodriguez-Sanchez, J.Benlliure, J.Taieb, H.Alvarez-Pol, L.Audouin, Y.Ayyad, G.Belier, G.Boutoux, E.Casarejos, A.Chatillon, D.Cortina-Gil, T.Gorbinet, A.Heinz, A.Kelic-Heil, B.Laurent, J.-F.Martin, C.Paradela, E.Pellereau, B.Pietras, D.Ramos, C.Rodriguez-Tajes, D.M.Rossi, H.Simon, J.Vargas, B.Voss

Presaddle and postsaddle dissipative effects in fission using complete kinematics measurements

NUCLEAR REACTIONS 1H(208Pb, F), E=500 MeV/nucleon; measured fission fragments, fission cross sections, prescission neutron multiplicities and average neutron excess of the final fission fragments as function of atomic number of fissioning nuclei by magnetic rigidity and time-of-flight techniques at GSI facility. Kinematics of the two fission fragments used for the first time to investigate fission dynamics at small and large deformations. Comparison of measured cross sections with model calculations using INCL4.6+ABLA07 codes.

doi: 10.1103/PhysRevC.94.061601
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2016SU16      Phys.Rev. C 94, 011602 (2016)

Y.Suzuki, W.Horiuchi, S.Terashima, R.Kanungo, F.Ameil, J.Atkinson, Y.Ayyad, D.Cortina-Gil, I.Dillmann, A.Estrade, A.Evdokimov, F.Farinon, H.Geissel, G.Guastalla, R.Janik, R.Knoebel, J.Kurcewicz, Yu.A.Litvinov, M.Marta, M.Mostazo, I.Mukha, C.Nociforo, H.J.Ong, S.Pietri, A.Prochazka, C.Scheidenberger, B.Sitar, P.Strmen, M.Takechi, J.Tanaka, I.Tanihata, J.Vargas, H.Weick, J.S.Winfield

Parameter-free calculation of charge-changing cross sections at high energy

NUCLEAR REACTIONS 12C(12C, X), E=937, 943 MeV/nucleon; 12C(13C, X), E=828 MeV/nucleon; 12C(14C, X), E=900 MeV/nucleon; 1H(12C, X), E=926 MeV/nucleon; 1H(13C, X), E=815 MeV/nucleon; 1H(14C, X), E=889 MeV/nucleon; 1H(15C, X), E=896 MeV/nucleon; 1H(16C, X), E=897 MeV/nucleon; 1H(17C, X), E=970 MeV/nucleon; 1H(18C, X), (19C, X), E=886 MeV/nucleon; calculated charge-changing σ (CCCS), proton, neutron, and matter radii using Glauber and eikonal formalism and approximations. Comparison with recent new high-energy data measured at the FRS-GSI facility.

doi: 10.1103/PhysRevC.94.011602
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2016TA07      Prog.Theor.Exp.Phys. 2016, 043D05 (2016)

I.Tanihata, S.Terashima, R.Kanungo, F.Ameil, J.Atkinson, Y.Ayyad, D.Cortina-Gil, I.Dillmann, A.Estrade, A.Evdokimov, F.Farinon, H.Geissel, G.Guastalla, R.Janik, R.Knoebel, J.Kurcewicz, Yu.A.Litvinov, M.Marta, M.Mostazo, I.Mukha, C.Nociforo, H.J.Ong, S.Pietri, A.Prochazka, C.Scheidenberger, B.Sitar, P.Strmen, M.Takechi, J.Tanaka, H.Toki, J.Vargas, J.S.Winfield, H.Weick

Observation of large enhancements of charge exchange cross sections with neutron-rich carbon isotopes

NUCLEAR REACTIONS C, H(C, X)12N/13N/14N/15N/16N/17N/18N/19N, E∼950 MeV/nucleon; measured reaction products; deduced σ, Gamow-Teller and/or Fermi transition strengths.

doi: 10.1093/ptep/ptw034
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2358.


2015MA70      Eur.Phys.J. A 51, 174 (2015)

J.-F.Martin, J.Taieb, A.Chatillon, G.Belier, G.Boutoux, A.Ebran, T.Gorbinet, L.Grente, B.Laurent, E.Pellereau, H.Alvarez-Pol, L.Audouin, T.Aumann, Y.Ayyad, J.Benlliure, E.Casarejos, D.Cortina Gil, M.Caamano, F.Farget, B.Fernandez-Dominguez, A.Heinz, B.Jurado, A.Kelic-Heil, N.Kurz, C.Nociforo, C.Paradela, S.Pietri, D.Ramos, J.-L.Rodriguez-Sanchez, C.Rodriguez-Tajes, D.Rossi, K.-H.Schmidt, H.Simon, L.Tassan-Got, J.Vargas, B.Voss, H.Weick

Studies on fission with ALADIN - Precise and simultaneous measurement of fission yields, total kinetic energy and total prompt neutron multiplicity at GSI

doi: 10.1140/epja/i2015-15174-0
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2015RO11      Phys.Rev. C 91, 064616 (2015)

J.L.Rodriguez-Sanchez, J.Benlliure, J.Taieb, H.Alvarez-Pol, L.Audouin, Y.Ayyad, G.Belier, G.Boutoux, E.Casarejos, A.Chatillon, D.Cortina-Gil, T.Gorbinet, A.Heinz, A.Kelic-Heil, B.Laurent, J.-F.Martin, C.Paradela, E.Pellereau, B.Pietras, D.Ramos, C.Rodriguez-Tajes, D.M.Rossi, H.Simon, J.Vargas, B.Voss

Complete characterization of the fission fragments produced in reactions induced by 208Pb projectiles on proton at 500A MeV

NUCLEAR REACTIONS 1H(208Pb, F), E=500 MeV/nucleon; measured fission fragments, (fragment)(fragment)-coin, σ and mean velocities of fission fragments using SIS18 synchrotron and MUSIC detector system at GSI facility; deduced role of charge polarization and excitation energy gained by the fragments from analysis of correlations between the two fragments, parametrize the distance between two fission fragments at scission as function of the size of the fissioning system from analysis of the average velocities of the fission fragments, final neutron excess of the fission fragments. 58,59,60,61,62,63,64,65Co, 60,61,62,63,64,65,66,67,68Ni, 63,64,65,66,67,68,69,70Cu, 64,65,66,67,68,69,70,71,72,73,74Zn, 66,67,68,69,70,71,72,73,74,75,76,77Ga, 69,70,71,72,73,74,75,76,77,78,79Ge, 72,73,74,75,76,77,78,79,80,81As, 74,75,76,77,78,79,80,81,82,83Se, 78,79,80,81,82,83,84,85,86,87,88,89Kr, 80,81,82,83,84,85,86,87,88,89,90,91,92Rb, 82,83,84,85,86,87,88,89,90,91,92,93,94Sr, 84,85,86,87,88,89,90,91,92,93,94,95,96,97Y, 86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101Zr, 88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103Nb, 89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105Mo, 93,94,95,96,97,98,99,100,101,102,103,104,105,106,107Tc, 95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110Ru, 97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112Rh, 100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115Pd, 104,105,106,107,108,109,110,111,112,113,114,115,116,117Ag, 106,107,108,109,110,111,112,113,114,115,116,117,118Cd, 109,110,111,112,113,114,115,116,117,118,119,120,121In, 112,113,114,115,116,117,118,119,120,121Sn, 114,115,116,117,118,119,120,121,122,123,124,125Sb, 116,117,118,119,120,121,122,123,124,125,126,127,128Te; deduced isotopic cross sections of the fission fragments with associated statistical and systematical uncertainties. Comparison with state-of-the-art model calculations using NCL4.6+ABLA07 codes.

doi: 10.1103/PhysRevC.91.064616
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2015RO18      Phys.Rev. C 92, 044612 (2015)

J.L.Rodriguez-Sanchez, J.Benlliure, H.Alvarez-Pol, L.Audouin, Y.Ayyad, G.Belier, G.Boutoux, E.Casarejos, A.Chatillon, D.Cortina-Gil, T.Gorbinet, A.Heinz, A.Kelic-Heil, B.Laurent, J.-F.Martin, C.Paradela, E.Pellereau, B.Pietras, D.Ramos, C.Rodriguez-Tajes, D.M.Rossi, H.Simon, J.Taieb, J.Vargas, B.Voss

Constraining the level density using fission of lead projectiles

NUCLEAR REACTIONS 1H, 27Al(208Pb, F), E=370, 500, 650 MeV/nucleon; measured spallation and fragmentation-induced fission fragments, fission σ(E), atomic-number distribution of final fission fragments using double multisampling ionization chamber (twin MUSIC) at GSI; deduced fission decay widths, and level densities at ground-state and at saddle-point deformations. Comparison with several theoretical model calculations, and benchmarking of data.

doi: 10.1103/PhysRevC.92.044612
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2014ES07      Phys.Rev.Lett. 113, 132501 (2014)

A.Estrade, R.Kanungo, W.Horiuchi, F.Ameil, J.Atkinson, Y.Ayyad, D.Cortina-Gil, I.Dillmann, A.Evdokimov, F.Farinon, H.Geissel, G.Guastalla, R.Janik, M.Kimura, R.Knobel, J.Kurcewicz, Yu.A.Litvinov, M.Marta, M.Mostazo, I.Mukha, C.Nociforo, H.J.Ong, S.Pietri, A.Prochazka, C.Scheidenberger, B.Sitar, P.Strmen, Y.Suzuki, M.Takechi, J.Tanaka, I.Tanihata, S.Terashima, J.Vargas, H.Weick, J.S.Winfield

Proton Radii of 12-17B Define a Thick Neutron Surface in 17B

NUCLEAR REACTIONS C(10B, X), (11B, X), (12B, X), (13B, X), (14B, X), (15B, X), (16B, X), (17B, X), E ∼ 900 MeV/nucleon; measured reaction products. 10,11,12,13,14,15,16,17B; deduced charge-changing σ, proton and matter radii, neutron skin. Glauber model analysis.

doi: 10.1103/PhysRevLett.113.132501
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2014RO28      Phys.Rev. C 90, 064606 (2014)

J.L.Rodriguez-Sanchez, J.Benlliure, J.Taieb, A.Chatillon, C.Paradela, Y.Ayyad, G.Belier, G.Boutoux, E.Casarejos, T.Gorbinet, B.Laurent, J.-F.Martin, E.Pellereau, H.Alvarez-Pol, L.Audouin, D.Cortina-Gil, A.Heinz, A.Kelic-Heil, B.Pietras, D.Ramos, C.Rodriguez-Tajes, D.Rossi, H.Simon, L.Tassan-Got, J.Vargas, B.Voss

Proton-induced fission cross sections on 208Pb at high kinetic energies

NUCLEAR REACTIONS 1H(208Pb, X), E=370, 500, 650 MeV/nucleon; measured fission fragment distributions, fission yields and fission σ(E) at GSI facility. Comparison with previous experimental data at E=50-1000 MeV/nucleon, and with Prokofiev's systematics. Benchmarking of model calculations using the intranuclear cascade code INCL4.6 coupled to the deexcitation code ABLA07. 208Pb(n, X), E=20-1000 MeV; analyzed fission σ(E).

doi: 10.1103/PhysRevC.90.064606
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2014TE06      Prog.Theor.Exp.Phys. 2014, 101D02 (2014)

S.Terashima, I.Tanihata, R.Kanungo, A.Estrade, W.Horiuchi, F.Ameil, J.Atkinson, Y.Ayyad, D.Cortina-Gil, I.Dillmann, A.Evdokimov, F.Farinon, H.Geissel, G.Guastalla, R.Janik, M.Kimura, R.Knoebel, J.Kurcewicz, Yu.A.Litvinov, M.Marta, M.Mostazo, I.Mukha, T.Neff, C.Nociforo, H.J.Ong, S.Pietri, A.Prochazka, C.Scheidenberger, B.Sitar, Y.Suzuki, M.Takechi, J.Tanaka, J.Vargas, J.S.Winfield, H.Weick

Proton radius of 14Be from measurement of charge-changing cross sections

NUCLEAR REACTIONS C(7Be, np), (9Be, np), (10Be, np), (11Be, np), (12Be, np), (14Be, np), E=90 MeV/nucleon; measured reaction products; deduced σ, proton and nucleon rms radii. Comparison with Glauber model calculations.

doi: 10.1093/ptep/ptu134
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1978FA15      Radiochim.Acta 25, 85 (1978)

J.D.Fabris, J.I.Vargas, A.Marques Netto, A.L.Baudry

Differential Perturbed Angular Correlation Measurements in Reactor Irradiated and Thermal Annealed Tetrakis-(dI-mandelate) Hafnium(IV)

RADIOACTIVITY 181Hf; measured γγ(θ, H, t), retention thermal annealing effects; deduced quadrupole interaction parameters vs T. Hf[M]4 chelate.


1972BO51      Inorg.Nucl.Chem.Lett. 8, 813 (1972)

P.Boyer, A.Tissier, J.I.Vargas

The Perturbation of the 181Ta Quadrupole Coupling in Tetrakis Hafnium (IV) Tropolone Complex by Chloroform

RADIOACTIVITY 181Hf; measured γγ(θ, t) in solid tetrakis Hf(IV) tropolone; deduced quadrupole coupling parameters.

doi: 10.1016/0020-1650(72)80162-4
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