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NSR database version of May 24, 2024.

Search: Author = G.Royer

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2024RO08      Phys.Rev. C 109, L041604 (2024)

G.Royer, A.Aguilera, V.Fasquel

Longitudinal ternary fission

doi: 10.1103/PhysRevC.109.L041604
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2023RO12      Phys.Rev. C 108, 034307 (2023)

G.Royer, T.Boureau, N.Potiron

Dependence of the fission half-lives of heavy nuclei on the highest proton magic number within a macro-microscopic approach

doi: 10.1103/PhysRevC.108.034307
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2022RO05      Nucl.Phys. A1021, 122427 (2022)

G.Royer, Q.Ferrier, M.Pineau

Alpha and cluster decays of superheavy elements and 2p radioactivity of medium nuclei

RADIOACTIVITY 252,254,256,258,260,262,264,266,268Rf, 258,260,262,264,266,268,270,272Sg, 262,264,266,268,270,272,274,276,278Hs, 260,262,264,266,268,270,272,274,276,278,280,282Ds, 276,278,280,282,284,286Cn, 284,286,288,290Fl, 290,292Lv, 294Og, 296,298120, 253,255,257,259,261,263,265,267,269Rf, 257,259,261,263,265,267,269,271Sg, 263,265,267,269,271,273,275,277Hs, 267,269,271,273,275,277,279,281Ds, 277,279,281,283,285Cn, 285,287,289Fl, 289,291,293Lv, 293,295Og, 295,297120, 255,257,259,261,263,265,267,269,271Db, 259,261,263,265,267,269,271,273,275Bh, 265,267,269,271,273,275,277,279Mt, 271,273,275,277,279,281,283Rg, 277,279,281,283,285,287Nh, 287,289,291Mc, 293Ts, 295,297119, 256,258,260,262,264,266,268,270Db, 260,262,264,266,268,270,272,274Bh, 266,268,270,272,274,276,278Mt, 272,274,276,278,280,282Rg, 278,280,282,284,286Nh, 286,288,290Mc, 292,294Ts, 294,296119(α), 221,222,223,224Ra, 226Ra, 225Ac(14C), 228Th(20O), 230Th, 231Pa(24Ne), 230U(22Ne), 232,233,234U(24Ne), 234,235U, 236Pu, 238Pu(28Mg), 238Pu(32Si), 242Cm(34Si), 253Rf(8Be), 257Rf(47K), 258Rf(48K), 255Db(8Be), 265Db(56Ti), 258Sg(8Be), 260Bh(50Ti), 264Hs(64Ni), 267Ds(58Fe), (60Fe), 268Ds(60Ni), 269Ds(60Fe), 271Ds(62Fe), (63Co), 272Ds(64Co), (64Ni), 273Ds(65Co), 274Ds(66Co), 275Ds(67Co), 281,282Ds(76Zn), 272Rg(62Fe), (63Ni), 274Rg(65Ni), 276Rg(67Ni), 278Rg(69Ni), 280Rg(71Ni), 282Rg(72Cu), 282,283Rg(76Zn), 285Cn(72Zn), (73Zn), (75Zn), (77Zn), 286Cn(48Ca), (74Ni), (78Ni), 286Nh(49Ca), (50Ca), (74Cu), (75Cu), (76Cu), (76Zn), (77Zn), (78Ga), 287Fl, 289Fl(48Ca), (75Cu), (76Zn), (77Zn), (78Zn), (79Zn), (80Zn), 293Lv(54Ti), 294Og(8Be), 12O, 16Ne, 19Mg, 45Fe, 48Ni, 54Zn, 67Kr(2p); calculated T1/2. Comparison with available data.

doi: 10.1016/j.nuclphysa.2022.122427
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2022RO15      Phys.Rev. C 106, 034605 (2022)

G.Royer

Calculation of two-proton radioactivity and application to 9Be, 6, 7Li, 3, 6He, and 2, 3H emissions

RADIOACTIVITY 12O, 16Ne, 19Mg, 45Fe, 48Ni, 54Zn, 67Kr(2p); calculated T1/2 using generalized liquid drop model (GLDM) and formula in 2020Cu01: Phys. Rev. C 101, 014301 (2020), and compared with experimental values. 22Si, 39Ti, 42Cr, 49Ni, 59Ge(2p); calculated T1/2 using GLDM and formula in 2020Cu01 for true 2p radioactivity. 26S, 30Ar, 34Ca, 36Sc, 38Ti, 40V, 47Co, 56Ga, 58Ge, 61As, 63Se(2p); calculated T1/2 using GLDM and formula in 2020Cu01 for not true 2p radioactivity. 2,3H, 3,6He, 6,7Li, 9Be(2p); deduced formulas for T1/2 at low excitation energies. Generalized liquid drop model (GLDM) and quasimolecular shapes.

doi: 10.1103/PhysRevC.106.034605
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2021RO12      Nucl.Phys. A1010, 122191 (2021)

G.Royer, M.Guillot, J.Monard

Fusion and fission barrier heights and positions within the Generalized Liquid Drop Model

NUCLEAR REACTIONS 20Ne(20Ne, X), 86Kr(58Ni, X), 208Pb(58Fe, X), E not given; analyzed available data. 94Mo, 191Au, 226Ac, 192Pt; deduced fission barriers, potential energy surfaces.

doi: 10.1016/j.nuclphysa.2021.122191
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2020DE08      Phys.Rev. C 101, 034307 (2020)

J.-G.Deng, H.-F.Zhang, G.Royer

Improved empirical formula for α-decay half-lives

RADIOACTIVITY A=146-294, Z=62-118(α); calculated α-decay half-lives for even-even nuclei; A=147-285, Z=62-112(α); calculated α-decay half-lives of even Z-odd N nuclei; A=145-261, Z=61-107(α); calculated α-decay half-lives of odd Z-even N nuclei; A=148-256, Z=63-101(α); calculated α-decay half-lives for odd-odd nuclei, in all cases isomers included. 279,281,283,285,287,289,291,293,295,297,299,301,303,305,307,309,311,313,315,317Ts, 281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313,314,315,316,317,318Og, 285,287,289,291,293,295,297,299,301,303,305,307,309,311,313,315,317,319119, 287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313,314,315,316,317,318,319,320120(α); calculated Qα, half-lives. Improved Royer formulas and WS3+ mass model. Comparison with available experimental values, and with other theoretical predictions.

doi: 10.1103/PhysRevC.101.034307
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2020RO07      Nucl.Phys. A1000, 121811 (2020)

G.Royer, M.Prince, X.Scannell, I.Lele-Cheudjou, A.Samb

Fusion reactions and synthesis of some superheavy nuclei

doi: 10.1016/j.nuclphysa.2020.121811
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2018CA19      Phys.Rev. C 98, 024305 (2018)

B.Cauchois, H.Lu, D.Boilley, G.Royer

Uncertainty analysis of the nuclear liquid drop model

ATOMIC MASSES Z=10-110, N=10-160; calculated uncertainties in the predicted binding energies from nuclear liquid-drop model, correlations between the theoretical binding energies and Q(α) of 208Pb and the binding energies for 2315 nuclei using standard regression analysis including a statistical treatment of the errors of the model.

doi: 10.1103/PhysRevC.98.024305
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2017RO11      Phys.Rev. C 95, 054610 (2017)

G.Royer, N.Mokus, J.Jahan

Geometric shapes and relationships of some one-body and multibody leptodermous distributions

doi: 10.1103/PhysRevC.95.054610
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2015RO23      Phys.Rev. C 92, 054308 (2015)

G.Royer, G.Ramasamy, P.Eudes

Energies of molecular structures in 12C, 16O, 20Ne, 24Mg, and 32S

NUCLEAR STRUCTURE 12C, 16O, 20Ne, 24Mg, 32S; calculated binding energies, potential energies as function of rms radius and angular momentum, alpha clusters, quadrupole moments, potential energies as function of distance between the mass centers for nuclear systems: 12C+α, 8Be+8Be, 6Li+α+6Li for 16O, 16O+α, 12C+8Be, 10B+10B, 8Be+α+8Be for 20Ne, 16O+8Be, 12C+12C, 8Be+8Be+8Be, 10B+α+10B for 24Mg, and 28C+α, 24Mg+8Be, 20Ne+12C, 16O+16O for 32S. Generalized liquid-drop model (GLDM), assuming different planar and three-dimensional shapes of α molecules forming linear chain, triangle, square, tetrahedron, pentagon, trigonal bipyramid, square pyramid, hexagon, octahedron, octagon, and cube.

doi: 10.1103/PhysRevC.92.054308
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2014BA02      Nucl.Phys. A921, 85 (2014)

X.Bao, H.Zhang, H.Zhang, G.Royer, J.Li

Systematical calculation of α decay half-lives with a generalized liquid drop model

RADIOACTIVITY Z=52-118(α); calculated T1/2 using WKB with liquid drop with proximity effects; deduced T1/2 systematics vs neutron number. Compared with data.

doi: 10.1016/j.nuclphysa.2013.11.002
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2014EU01      Phys.Rev. C 90, 034609 (2014)

P.Eudes, Z.Basrak, F.Sebille, V.de la Mota, G.Royer

Comprehensive analysis of fusion data well above the barrier

NUCLEAR REACTIONS 12C(14N, X)26Al*, E=3.14, 3.80, 4.29, 6.16, 7.59, 10.39, 11.29, 11.94, 12.72, 17.71 MeV/nucleon; 16O(20Ne, X)36Ar*, E=3.40, 5.74, 6.10, 6.85, 7.80 MeV/nucleon; 12C(24Mg, X)36Ar*, E=25.0, 35.0, 45.0 MeV/nucleon; 27Al(12C, X)39K*, E=5.32, 6.75, 7.14, 8.04, 8.13, 15.00 MeV/nucleon; 24Mg(16O, X)40Ca*, E=3.00, 3.25, 3.50, 3.81, 4.13, 4.50, 5.06 MeV/nucleon; 20Ne(20Ne, X)40Ca*, E=3.40, 5.85, 6.30, 7.00, 7.80 MeV/nucleon; 12C(28Si, X)40Ca*, E=3.57, 4.46, 5.36, 5.71, 6.36, 6.43, 11.04, 14.18, 16.14 MeV/nucleon; 27Al(14N, X)41Ca*, E=11.21, 18.7 MeV/nucleon; 26Mg(16O, X)42Ca*, E=3.11, 3.36, 3.67, 3.85, 4.04, 4.49, 5.06 MeV/nucleon; 24Mg(18O, X)42Ca*, E=3.05, 3.33, 3.50, 3.72, 4.00 MeV/nucleon; 27Al(16O, X)43Sc*, E=3.13, 3.75, 4.06, 4.38, 4.69, 5.00, 5.06, 6.56, 7.88, 10.50, 13.44 MeV/nucleon; 12C(32S, X)44Ti*, E=3.21, 3.40, 4.10, 4.53, 5.00, 19.50 MeV/nucleon; 26Mg(20Ne, X)46Ti*, E=3.00, 4.20, 4.65, 5.25, 6.00, 7.50, 10.10, 14.50, 19.75 MeV/nucleon; 27Al(20Ne, X)47V*, E=3.00, 4.05, 4.25, 4.65, 5.25, 6.00, 6.90, 7.50, 9.00, 10.50, 14.50, 19.75 MeV/nucleon; 12C(35Cl, X)47V*, E=3.57, 4.00, 4.40, 5.14, 5.71, 7.94 MeV/nucleon; 32S(16O, X)48Cr*, E=10.50 MeV/nucleon; 40Ca(16O, X)56Ni*, E=3.11, 3.47, 3.92, 4.65, 6.47, 8.73, 13.38 MeV/nucleon; 28Si(28Si, X)56Ni*, E=3.21, 3.57, 3.93, 4.29, 5.00, 6.21, 7.68, 8.57, 11.04, 12.04, 14.18, 16.14, 19.70, 20.00, 22.00, 26.00, 30.00, 35.00 MeV/nucleon; 24Mg(32S, X)56Ni*, E=3.95, 4.40, 5.00, 5.75, 6.06, 6.25, 7.47, 8.69 MeV/nucleon; 40Ca(19F, X)59Cu*, E=3.45, 4.13, 5.03, 5.42, 6.00, 9.00, 11.37 MeV/nucleon; 27Al(32S, X)59Cu*, E=4.43, 4.77, 5.47, 5.86, 7.09, 7.94, 10.00, 10.50, 11.44, 12.28 MeV/nucleon; 24Mg(35Cl, X)59Cu*, E=7.86, 8.07 MeV/nucleon; 48Ti(12C, X)60Ni*, E=6.75, 8.13, 15.00 MeV/nucleon; 40Ca(23Na, X)63Ga*, E=11.30, 12.48 MeV/nucleon; Ti(16O, X), E=14.19, 19.38 MeV/nucleon; 52Cr(14N, X)66Ga*, E=11.21, 18.71 MeV/nucleon; 27Al(40Ar, X)67Ga*, E=55.00 MeV/nucleon; 40Ca(28Si, X)68Se*, E=10.64, 11.04, 11.68, 14.18, 16.14 MeV/nucleon; 58Ni(12C, X)70Se*, E=5.32, 6.75, 8.04, 8.13, 15.00 MeV/nucleon; 58Ni(14N, X)72Br*, E=11.21, 18.71 MeV/nucleon; K, Cl(36Ar, X), E=31.58, 40.03, 51.78 MeV/nucleon; 63Cu(12C, X)75Br*, E=5.32, 6.75, 8.04, 8.13 MeV/nucleon; 40Ca(40Ar, X)80Sr*, E=4.02, 4.75, 5.90, 6.83, 15.00, 20.00, 30.00 MeV/nucleon; 40Ca(40Ca, X)80Zr*, E=3.55, 3.67, 3.85, 4.05, 4.25, 4.38, 4.55, 4.88, 7.50 MeV/nucleon; 27Al(58Ni, X)85Nb*, E=28.00 MeV/nucleon; 63Cu(24Mg, X)87Nb*, E=6.71, 9.38, 11.71, 14.21 MeV/nucleon; 45Sc(48Ti, X)93Tc*, E=15.98 MeV/nucleon; 58Ni(36Ar, X)94Pd*, E=31.58, 40.03, 51.78 MeV/nucleon; 92Mo(16O, X)108Sn*, E=11.70 MeV/nucleon; 76Ge(32S, X)108Cd*, E=4.94, 5.56, 6.19, 6.81, 7.03 MeV/nucleon; 68Zn(40Ar, X)108Cd*, E=14.60, 19.60, 27.55, 35.00 MeV/nucleon; 56Fe(52Cr, X)108Sn*, E=5.10 MeV/nucleon; 93Nb(19F, X)112Sn*, E=3.84, 5.00 MeV/nucleon; 48Ti(64Zn, X)112Te*, E=35.00, 50.00 MeV/nucleon; 58Ni(58Ni, X)116Ba*, E=32.00, 40.50, 51.50, 63.50 MeV/nucleon; 100Mo(18O, X)118Sn*, E=5.56, 8.33, 9.39, 10.28, 12.06 MeV/nucleon; 40Ca(78Kr, X)118Ba*, E=5.50 MeV/nucleon; 40Ca(82Kr, X)122Ba*, E=5.50 MeV/nucleon; 124Sn(12C, X)136Ba*, E=30.00, 49.00, 84.00 MeV/nucleon; 124Sn(14N, X)138La*, E=10.00, 20.00, 30.00 MeV/nucleon; 124Sn(20Ne, X)144Nd*, E=20.00, 30.00 MeV/nucleon; 108Ag(40Ar, X)148Tb*, E=4.22, 4.93, 5.90, 7.20, 8.40, 8.43, 27.40 MeV/nucleon; 65Cu(84Kr, X)149Ho*, E=5.88, 7.19 MeV/nucleon; 116Sn(40Ar, X)156Er*, E=4.63, 5.50, 6.78, 8.48 MeV/nucleon; 121Sb(40Ar, X)161Tm*, E=4.97, 5.65, 7.05, 7.50 MeV/nucleon; 146Nd(16O, X)162Er*, E=10.06 MeV/nucleon; 30Si(132Xe, X)162Er*, E=5.40, 5.90, 6.60, 7.50, 8.20 MeV/nucleon; 124Sn(40Ar, X)164Er*, E=24.00, 27.00 MeV/nucleon; 154Sm(14N, X)168Tm*, E=35.00, 100.00, 130.00, 135.00 MeV/nucleon; 159Tb(14N, X)173Hf*, E=22.07, 35.00, 100.00 MeV/nucleon; 159Tb(16O, X)175Ta*, E=14.00, 25.00 MeV/nucleon; 159Tb(20Ne, X)179Re*, E=8.00, 10.00, 13.00, 16.00 MeV/nucleon; 124Sn(58Ni, X)182Pt*, E=3.96, 4.12.4.28.4.66.5.00 MeV/nucleon; 165Ho(20Ne, X)185Ir*, E=30.00 MeV/nucleon; 169Tm(20Ne, X)189Au*, E=8.00, 10.00, 13.00, 16.00 MeV/nucleon; 182W(12C, X)194Hg*, E=10.08, 13.92 MeV/nucleon; 175Lu(19F, X)194Hg*, E=7.11, 9.68 MeV/nucleon; 154Sm(40Ar, X)194Hg*, E=5.53, 6.80, 8.50 MeV/nucleon; 181Ta(14N, X)195Hg*, E=35.00 MeV/nucleon; 181Ta(16O, X)197Tl*, E=14.00, 25.00 MeV/nucleon; 164Dy(40Ar, X)204Po*, E=5.53, 6.80, 8.48 MeV/nucleon; 181Ta(24Mg, X)205At*, E=11.25, 13.96, 14.17 MeV/nucleon; 165Ho(40Ar, X)205At*, E=5.65, 7.00, 7.50, 7.88, 8.50, 9.77 MeV/nucleon; 197Au(12C, X)209At*, E=86.00 MeV/nucleon; 197Au(14N, X)211Rn*, E=35.00, 100.00, 130.00, 155.00 MeV/nucleon; 197Au(16O, X)213Fr*, E=14.00, 107.00 MeV/nucleon; 197Au(20Ne, X)217Ac*, E=7.50, 11.00, 14.50, 20.00, 30.00 MeV/nucleon; 197Au(40Ar, X)237Bk*, E=5.47, 5.68, 6.20, 6.75, 8.40, 8.48, 8.57 MeV/nucleon; 209Bi(20Ne, X)229Np*, E=30.00 MeV/nucleon; 232Th(14N, X)246Bk*, E=30.00 MeV/nucleon; 238U(40Ar, X)278Ds*, E=6.25, 7.50, 8.50, 10.40 MeV/nucleon; Analyzed 382 complete and incomplete fusion σ data relative to 81 systems, A=26-278, E ≈ 3-155 MeV/nucleon; distinguished evaporation and fusion-fission mechanisms; deduced universal homographic law of fusion from properly normalized and scaled fusion σ(E) data, threshold for incomplete fusion, energy of vanishing of complete and incomplete fusion; proposed a reaction mechanism for fusion disappearance.

doi: 10.1103/PhysRevC.90.034609
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2014EU02      Nucl.Phys. A930, 131 (2014)

P.Eudes, Z.Basrak, V.de la Mota, G.Royer

Is there incomplete fusion mechanism beyond 100A MeV?

doi: 10.1016/j.nuclphysa.2014.07.035
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2014RO19      Phys.Rev. C 90, 024607 (2014)

G.Royer, A.Escudie, B.Sublard

Potential barriers governing the 12C formation and decay through quasimolecular shapes

NUCLEAR STRUCTURE 8Be, 12C; calculated L-dependent potential barriers for binary and ternary channels in reactions governing the 8Be and 12C formation and decay through quasimolecular shapes; compared energies of prolate linear chain configurations and oblate triangular configurations of three α particles in ternary channel of 12C. Generalized liquid-drop model.

doi: 10.1103/PhysRevC.90.024607
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2014ZH28      Nucl.Phys. A929, 38 (2014)

H.Zhang, J.Dong, N.Ma, G.Royer, J.Li, H.Zhang

An improved nuclear mass formula with a unified prescription for the shell and pairing corrections

NUCLEAR STRUCTURE A=16-270; calculated binding energy, mass excess, separation energy; deduced coefficients of modified macroscopic-microscopic nuclear mass formula. Compared with other calculations and data.

doi: 10.1016/j.nuclphysa.2014.05.019
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2013EU01      Europhys.Lett. 104, 22001 (2013)

P.Eudes, Z.Basrak, F.Sebille, V.de la Mota, G.Royer

Towards a unified description of evaporation-residue fusion cross-sections above the barrier

NUCLEAR REACTIONS 124Sn(12C, X), 28Si(28Si, X), 96Zr(36Ar, X), E<20 MeV/nucleon; analyzed available data for 300 fusion evaporation σ; deduced a universal homographic law. DYWAN microscopic transport model.

doi: 10.1209/0295-5075/104/22001
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2013RO12      Phys.Rev. C 87, 057601 (2013)

G.Royer

Formation of superheavy elements in the capture of very heavy ions at high excitation energies

NUCLEAR REACTIONS 244Pu(58Fe, X)302120*, E not given; 238U(64Ni, X)302120*, E not given; 238U(72Ge, X)310124*, E not given; calculated potential barriers, angular momentum. Comparison of barrier heights from Generalized liquid drop model (GLDM) and Bass empirical potential. Macro-microscopic calculations.

doi: 10.1103/PhysRevC.87.057601
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2013RO26      Nucl.Phys. A917, 1 (2013)

G.Royer, A.Subercaze

Coefficients of different macro-microscopic mass formulae from the AME2012 atomic mass evaluation

ATOMIC MASSES A=20-280; analyzed data; deduced coefficients in mass formula; calculated mass, Q.

doi: 10.1016/j.nuclphysa.2013.09.003
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2012BA35      J.Phys.(London) G39, 095103 (2012)

X.J.Bao, H.F.Zhang, B.S.Hu, G.Royer, J.Q.Li

Half-lives of cluster radioactivity with a generalized liquid-drop model

RADIOACTIVITY 221Fr, 221,222,223,224,226Ra, 225Ac, 226Th(14C), 226Th(18O), 228Th(20O), 230Th(24Ne), 232Th(26Ne), 231Pa(24Ne), (23F), 230U(22Ne), (24Ne), 232U(28Mg), (24Ne), 233U(24Ne), (25Ne), (28Mg), 234U(24Ne), (26Ne), (28Mg), 235U(24Ne), (25Ne), (28Mg), 236U, 247Np(30Mg), 236Pu(28Mg), 238Pu(28Mg), (30Mg), (32Si), 220Rn(12C), 221Rn(15N), 222Rn(18O), 223Ra(18O), 226Ra(20O), 225Ac(18O), 224Th(15N), 224Th(24Ne), 226Th(15N), 226,228Th(24Ne), 229Th(21O), (24Ne), 231Pa(27Na), 232Pa(25Ne), (28Mg), 230U(20O), (24Ne), (32Si), 232U(28Mg), 233,234U(27Na), 225Np(12C), (16O), 227Np(16O), (18O), 231Np(20O), 233Np(22Ne), (25Ne), 234Np(28Mg), 235Np(29Mg), 236Np(29Mg), 237Np(32Si), 234Pu(27Na), (29Al), 236Pu(24Ne), (29Al), 237Pu(29Mg), (32Si), 237Am(28Mg), (32Si), 238Am(29Mg), (33Si), 239Am(32Si), (34Si), 240Am(34Si), 241Am(34Si), 238Cm(32Si), 240Cm(30Mg), (34Si), 242Cm(32Si), 243Cm(34Si), 242Cf(32Si), (34Si), 244Cf(34Si), 246Cf(38S), 249Cf(46Ar), (50Ca), 250,252,253,254,255,256,257,258No(48Ca), 258Rf(49Ca), (51Ti), (53Ti); calculated T1/2 for cluster radioactivity. WKB barrier-penetrating probabilities, generalized liquid drop model, comparison with available data.

doi: 10.1088/0954-3899/39/9/095103
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2012RO34      Phys.Rev. C 86, 044326 (2012)

G.Royer, M.Jaffre, D.Moreau

Fission barriers and half-lives of actinides in the quasimolecular shape valley

RADIOACTIVITY 230,231,233Th, 232,234,235,236,237,238,239U, 238Np, 238,239,240,241,243Pu, 242,243,244Am, 243,245,248Cm, 250Bk, 250Cf, 255,256Es, 255,256Fm, 256No(SF); calculated half-lives, fission barriers using the generalized liquid-drop model. Quasi-molecular shapes. Comparison with experimental data.

doi: 10.1103/PhysRevC.86.044326
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2012ZH02      Phys.Rev. C 85, 014325 (2012)

H.F.Zhang, Y.Gao, N.Wang, J.Q.Li, E.G.Zhao, G.Royer

Double magic nuclei for Z>82 and N>126

NUCLEAR STRUCTURE Z=101-118, N=140-194; calculated binding energies, Q(α). Z=101-129, N=162, 184; calculated S(p), Q(α) using Macroscopic-microscopic model (MMM). 270Hs, 298Fl; calculated potential energy in the constrained relativistic mean-field (CRMF) theory with effective interaction NL3. Comparison with experimental data.

RADIOACTIVITY 269Sg, 274Bh, 273Hs, 278Mt, 277,281Ds, 282Rg, 281,285Cn, 285,286Nh, 285,288,289Fl, 289,290Mc, 293,294Ts(α); Z=108, N=148-172(α); Z=114, N=160-190(α); calculated α decay half-lives. Macroscopic-microscopic model (MMM). Comparison with experimental data.

doi: 10.1103/PhysRevC.85.014325
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2011BE06      Acta Phys.Pol. B42, 747 (2011)

C.Beck, P.Papka, A.Sanchez i Zafra, S.Thummerer, F.Azaiez, P.Bednarczyk, S.Courtin, D.Curien, O.Dorvaux, A.Goasduff, D.Lebhertz, A.Nourreddine, M.Rousseau, M.-D.Salsac, W.von Oertzen, B.Gebauer, C.Wheldon, Tz.Kokalova, G.Efimov, V.Zherebchevsky, Ch.Schulz, H.G.Bohlen, D.Kamanin, G.de Angelis, A.Gadea, S.Lenzi, D.R.Napoli, S.Szilner, M.Milin, W.N.Catford, D.G.Jenkins, G.Royer

Clusters in Light Nuclei

doi: 10.5506/APhysPolB.42.747
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2011DA15      Phys.Rev. C 84, 024302 (2011)

J.Darai, J.Cseh, N.V.Antonenko, G.Royer, A.Algora, P.O.Hess, R.V.Jolos, W.Scheid

Clusterization in the shape isomers of the 56Ni nucleus

NUCLEAR STRUCTURE 56Ni; calculated energetics and deformation parameters of shape isomers, triaxial, superdeformed and hyperdeformed structures with binary cluster configurations. Quasimolecular shape sequence. Generalized Liquid Drop Model. Quasidynamical U(3) symmetry based on a Nilsson calculation.

doi: 10.1103/PhysRevC.84.024302
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2011RO15      Int.J.Mod.Phys. E20, 1030 (2011)

G.Royer, C.Schreiber, H.Saulnier

Analytic relations for partial alpha decay half-lives and barrier heights and positions

NUCLEAR STRUCTURE Z=52-102; calculated α-decay T1/2 for even-even nuclei. Comparison with experimental data.

doi: 10.1142/S0218301311019209
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2011RO43      Phys.Rev. C 84, 044602 (2011)

G.Royer, J.Gaudillot

Rotating hyperdeformed states in light nuclear systems

NUCLEAR REACTIONS 13C(13C, X)26Mg*, 16O(16O, X)32s*, 12C(28Si, X)40Ca*, 16O(28Si, X)44Ti*, 24Mg(24Mg, X)48Cr*, 24Mg(28Si, X)52Fe*, 28Si(28Si, X)56Ni*, 40Ca(28Si, X)68Se*, 40Ca(40Ca, X)80Zr*, 48Ca(40Ca, X)88Zr*, 48Ca(48Ca, X)96Zr*, 58Ni(58Ni, X)116Ba*; calculated fusion barriers as function of angular momentum and distance between the mass centers, fusion cross sections, angular momentum, moment of inertia, quadrupole moment, the β parameter, and the center-of-mass energy of the strongly deformed quasimolecular minima for symmetric and asymmetric fusion, rotating hyperdeformed states. Generalized liquid drop model.

doi: 10.1103/PhysRevC.84.044602
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2011ZH24      Phys.Rev. C 84, 027303 (2011)

H.F.Zhang, G.Royer, J.Q.Li

Assault frequency and preformation probability of the α emission process

RADIOACTIVITY 188,190,192,194,196,198,200,202,204,206,208,210,212,214,216,218Po(α); calculated penetration probabilities, assault frequencies. Z=52-116(α); N=54, 58, 84-176(α); comparison of experimental and previously calculated half-lives for 131 even-even nuclides. N=86-178(α); calculated assault frequencies for 154 even-even nuclei. WKB approximation and Generalized liquid-drop model (GLDM) for penetration probability calculation. Classical and quantum-mechanical approach for assault frequencies.

doi: 10.1103/PhysRevC.84.027303
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2010RO33      Nucl.Phys. A847, 24 (2010)

G.Royer, M.Guilbaud, A.Onillon

Macro-microscopic mass formulae and nuclear mass predictions

ATOMIC MASSES A=20-270; analyzed masses, binding energies; deduced mass formulae coefficients by fitting to AME2003; calculated masses for 161 recently measured nuclei. Comparison with data.

doi: 10.1016/j.nuclphysa.2010.06.014
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2010RO34      Nucl.Phys. A848, 279 (2010)

G.Royer

Analytic expressions for alpha-decay half-lives and potential barriers

RADIOACTIVITY 274Bh, 278Mt, 282Rg, 285,286Nh, 289Mc, 293,294Ts(α); calculated, analyzed T1/2 using analytical formulae. Comparison with data.

NUCLEAR STRUCTURE A=106-261; calculated, analyzed α-decay Q, T1/2 using analytical formulae. Comparison with data.

doi: 10.1016/j.nuclphysa.2010.09.009
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2009BE34      Phys.Rev. C 80, 034604 (2009)

C.Beck, P.Papka, A.Sanchez i Zafra, S.Thummerer, F.Azaiez, P.Bednarczyk, S.Courtin, D.Curien, O.Dorvaux, D.Lebhertz, A.Nourreddine, M.Rousseau, W.von Oertzen, B.Gebauer, C.Wheldon, Tz.Kokalova, G.de Angelis, A.Gadea, S.Lenzi, S.Szilner, D.R.Napoli, W.N.Catford, D.G.Jenkins, G.Royer

Binary reaction decays from 24Mg+12C

NUCLEAR REACTIONS 12C(24Mg, X), E=130 MeV; measured Eγ, Iγ, γγ-, (fragment)γ-coin using Binary Reaction Spectrometer (BRS) in coincidence with Euroball IV array. 24Mg, 20Ne, 16O; deduced levels, J, π, deformations. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.80.034604
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2009DO06      Phys.Rev. C 79, 054330 (2009)

J.M.Dong, H.F.Zhang, G.Royer

Proton radioactivity within a generalized liquid drop model

RADIOACTIVITY 105Sb, 145,147Tm, 150,151Lu, 155,156,157Ta, 159,160,161Re, 164,166,167Ir, 171Au, 177Tl, 185Bi(p); calculated proton decay half-lives and penetration probabilities using generalized liquid drop model (GLDM) calculations and WKB approximation. Comparison with experimental data.

doi: 10.1103/PhysRevC.79.054330
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2009RO30      Eur.Phys.J. A 42, 541 (2009)

G.Royer, R.Rousseau

On the liquid drop model mass formulae and charge radii

ATOMIC MASSES Z=8-112; calculated atomic masses, binding energies; deduced mass formulae coefficients. Comparison with data.

NUCLEAR STRUCTURE Z=8-112; analyzed nuclear charge radii.

doi: 10.1140/epja/i2008-10745-8
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2009WA01      Phys.Rev. C 79, 014316 (2009)

Y.Z.Wang, H.F.Zhang, J.M.Dong, G.Royer

Branching ratios of α decay to excited states of even-even nuclei

RADIOACTIVITY 180,182,184Hg(α), 186,188Pb(α), 190,194,196,198Po(α), 202Rn(α), 226,228,230,232Th(α), 230,232,234,236U(α), 236,238,240,242Pu(α), 242,244Cm(α), 246Cf(α); calculated branching ratios for decays to ground excited states in the framework of generalized liquid-drop model. Comparison with experimental data.

doi: 10.1103/PhysRevC.79.014316
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2009ZH28      Phys.Rev. C 80, 037307 (2009)

H.F.Zhang, J.M.Dong, G.Royer, W.Zuo, J.Q.Li

Preformation of clusters in heavy nuclei and cluster radioactivity

RADIOACTIVITY 212,213,214Po, 215At, 238Pu(α), 221Fr, 221,222,223,224Ra, 225Ac, 226Ra(14C), 228Th(20O), 230U(22Ne), 230Th, 231Pa, 232,233,234U(24Ne), 233U(25Ne), 234U(26Ne), 234U, 236,238Pu(28Mg), 238Pu(30Mg), 238Pu(32Si), 242Cm(34Si); calculated preformation factor P0 of cluster decay. 223Ac, 224,226Th(14C), 223Ac(15N), 224Th(16O), 226Th(16O), 232Th, 236U(24Ne), 232Th(26Ne), 233U(28Mg), 237Np(30Mg), 240Pu, 241Am(34Si); calculated half-lives. 114,115,116,117,118,119Ba, 121La(12C), 114,115,116,117,118Ba, 119,120,121,122,124Ce, 125Pr(16O); calculated half-lives. Preformed cluster approach and generalized liquid drop model (GLDM). Comparison with experimental data.

doi: 10.1103/PhysRevC.80.037307
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2009ZH38      Phys.Rev. C 80, 057301 (2009)

H.F.Zhang, G.Royer, Y.J.Wang, J.M.Dong, W.Zuo, J.Q.Li

Analytic expressions for α particle preformation in heavy nuclei

RADIOACTIVITY N=82-178(α); analyzed α particle preformation factors from experimental Eα and half-lives; deduced analytical expressions for preformation factors.

doi: 10.1103/PhysRevC.80.057301
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2008BE38      Int.J.Mod.Phys. E17, 2049 (2008)

C.Beck, A.Sanchez i zafra, P.Papka, S.Thummerer, F.Azaiez, P.Bednarczyk, S.Courtin, D.Curien, O.Dorvaux, D.Lebhertz, A.Nourreddine, J.Robin, M.Rousseau, W.Von Oertzen, B.Gebauer, Tz.Kokalova, C.Wheldon, G.De Angelis, A.Gadea, S.Lenzi, S.Szilner, D.R.Napoli, W.N.Catford, D.G.Jenkins, G.Royer

Alpha-cluster states populated in 24Mg + 12C

NUCLEAR REACTIONS 12C(24Mg, X)16O/20Ne, E=130 MeV; measured Eγ, Iγ, particle-γ-coin.; deduced energy levels, J, π, level scheme.

doi: 10.1142/S0218301308011070
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2008RO06      Phys.Rev. C 77, 037602 (2008)

G.Royer, H.F.Zhang

Recent α decay half-lives and analytic expression predictions including superheavy nuclei

RADIOACTIVITY 105Te, 156Er, 158Yb, 160,174Hf, 158,168W, 162,164Os, 166,168,170Pt, 172,174,188Hg, 178,180,184,186,188,190,192,194Pb, 188,189,190,192,210Po, 196,198Rn, 202,204Ra, 210,212Th, 218,220,224,226U, 228,230Pu, 238Cm, 258No, 253,254,255,256,257,258,259,260,262,263,264,265,267,268Rf, 255,256,257,258,259,261,262,263,264,265,266,267,268,269,270Db, 258,259,261,262,264,267,268,269,270,271,272Sg, 260,261,262,263,264,265,266,267,268,269,270,271,272,273,274Bh, 263,266,267,268,269,270,271,273,274,275,276,277Hs, 265,266,267,268,269,270,271,272,273,274,275,276,277,278,279Mt, 267,268,270,271,272,273,274,275,276,277,278,279,281Ds, 273,274,275,276,277,278,279,280,281,282,283Rg, 277,278,279,280,281,282,283,284,285Cn, 282,283,284,285,286,287Nh, 285,286,287,288,289Fl, 287,288,289,290,291Mc, 289,290,291,292,293Lv, 291,292Ts, 293,294Og(α); calculated half-lives, Qα using density dependent effective interaction and Viola-Seaborg-Sobiczewski formulas. Comparison with experimental data for known isotopes.

doi: 10.1103/PhysRevC.77.037602
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2008RO18      Nucl.Phys. A807, 105 (2008)

G.Royer

On the coefficients of the liquid drop model mass formulae and nuclear radii

ATOMIC MASSES Z=7-100; calculated atomic masses.

NUCLEAR STRUCTURE Z=7-100; calculated nuclear charge radii.

doi: 10.1016/j.nuclphysa.2008.04.002
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2008RO29      Int.J.Mod.Phys. E17, 2270 (2008)

G.Royer, H.Zhang

Alpha decay potential barriers and half-lives and analytical formula predictions for superheavy nuclei

doi: 10.1142/S021830130801146X
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2008VO07      Eur.Phys.J. A 36, 279 (2008)

W.von Oertzen, B.Gebauer, G.Efimov, V.Zherebchevsky, Tz.Kokalova, S.Thummerer, Ch.Schulz, H.G.Bohlen, D.Kamanin, C.Beck, D.Curien, P.Papka, M.Rousseau, G.Royer, G.de Angelis

Fission and ternary cluster decay of hyper-deformed 56Ni

NUCLEAR REACTIONS 24Mg(32S, F), E=165.4 MeV; measured fission fragment energy, yields, (fragment)(fragment)-coin using Euroball-IV array; deduced reaction mechanism and ternary fission contribution using an extended Hauser-Feshbach method.

doi: 10.1140/epja/i2008-10592-7
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2008VO12      Phys.Rev. C 78, 044615 (2008)

W.von Oertzen, V.Zherebchevsky, B.Gebauer, Ch.Schulz, S.Thummerer, D.Kamanin, G.Royer, Th.Wilpert

Fission decay of N = Z nuclei at high angular momentum: 60Zn

NUCLEAR REACTIONS 24Mg(36Ar, X)60Zn, E=195 MeV; measured fission fragments distributions, σ(θ); deduced evidence for ternary cluster decay process from strongly dependent high-spin states.

doi: 10.1103/PhysRevC.78.044615
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2008ZH12      Phys.Rev. C 77, 054318 (2008)

H.F.Zhang, G.Royer

α particle preformation in heavy nuclei and penetration probability

RADIOACTIVITY 178,180,182,184,186,188,190,192,194,210Pb, 188,190,192,194,196,198,200,202,204,206,208,210,212,214,216,218Po, 198,200,202,204,206,208,210,212,214,216,218,220,222Rn, 202,204,206,208,210,212,214,216,218,220,222,224,226Ra, 210,212,214,216,218,220,222,224,226,228,230,232Th, 218,220,222,224,226,228,230,232,234,236,238U, 260,266Sg, 264,266Hs, 270Ds, 286,288Fl, 290,292Lv, 294118(α); calculated α-particle preformation, penetration probabilities, Qα. Generalized Liqiud Drop model. Z=52-118, A=108-295; calculated α-preformation factors for 180 even-even nuclides.

doi: 10.1103/PhysRevC.77.054318
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2007RO08      J.Radioanal.Nucl.Chem. 272, 237 (2007)

G.Royer, C.Bonilla

Multiple-humped fission and fusion barriers of actinide and superheavy elements

NUCLEAR REACTIONS 132Sn(99Zr, X), (101Zr, X), (104Mo, X), (105Mo, X), (106Mo, X), (111Ru, X), (112Rh, X), 134Te(98Zr, X), 131Sn(103Mo, X), (104Mo, X), (110Ru, X), (111Ru, X), 130Sn(109Ru, X), (110Ru, X), (113Pd, X), (115Pd, X), (118Pd, X), (120Ag, X), 125In(125In, X), 128Sn, 127Sb(128In, X), E not given; calculated potential barrier parameters.

RADIOACTIVITY 232,234,235,236,238U, 238,239,240Pu, 243Am, 243,245,248Cm, 250Cf, 255Es, 256Fm, 256No(SF); calculated T1/2. 284,285,286,287,288,289,290,291,292Fl, 285,286,287,288,289,290,291,292,293Mc, 287,288,289,290,291,292,293,294,295Lv, 290,291,292,293,294,295,296,297,298Ts, 292,293,294,295,296,297,298,299,300Og, 295,296,297,298,299,300,301,302,303120(α); calculated T1/2, Qα.

doi: 10.1007/s10967-007-0507-4
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2007ZH14      Phys.Lett. B 646, 12 (2007)

V.Zherebchevsky, W.von Oertzen, D.Kamanin, B.Gebauer, S.Thummerer, Ch.Schulz, G.Royer

Binary fission and coplanar cluster decay of 60Zn compound nuclei at high angular momentum

NUCLEAR REACTIONS 24Mg(36Ar, X), E=195 MeV; measured fission fragment energy spectra, yields, angular distributions; deduced fission barrier heights, Q-values. Ternary coplanar cluster decay.

doi: 10.1016/j.physletb.2006.12.061
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2007ZH41      Phys.Rev. C 76, 047304 (2007)

H.F.Zhang, G.Royer

Theoretical and experimental α decay half-lives of the heaviest odd-Z elements and general predictions

RADIOACTIVITY 253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268Rf, 255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270Db, 258,259,260,261,262,263,264,265,266,267,268,269,270,271,272Sg, 260,261,262,263,264,265,266,267,268,269,270,271,272,273,274Bh, 263,264,265,266,267,268,269,270,271,272,273,274,275,276,277Hs, 265,266,267,268,269,270,271,272,273,274,275,276,277,278,279Mt, 267,268,269,270,271,272,273,274,275,276,277,278,279,280,281Ds, 272,273,274,275,276,277,278,279,280,281,282,283Rg, 277,278,279,280,281,282,283,284,285Cn, 283,284,285,286,287Nh, 285,286,287,288,289Fl, 287,288,289,290,291Mc, 289,290,291,292Lv, 291,292Ts, 293Og(α); calculated half-lives, Q(α), comparison with experimental values.

doi: 10.1103/PhysRevC.76.047304
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2006RO24      Phys.Rev. C 73, 067302 (2006)

G.Royer, C.Gautier

Coefficients and terms of the liquid drop model and mass formula

NUCLEAR STRUCTURE A=16-254; analyzed atomic masses; deduced liquid drop model parameters.

doi: 10.1103/PhysRevC.73.067302
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2006ZH16      Chin.Phys.Lett. 23, 1734 (2006)

H.-F.Zhang, J.-Q.Li, W.Zuo, B.-Q.Chen, Z.-Yu.Ma, S.Im, G.Royer

Alpha Decay Half-Lives of New Superheavy Elements through Quasimolecular Shapes

RADIOACTIVITY 294Og, 290,291,292,293Lv, 286,287,288,289Fl, 283,285Cn, 279Ds, 275Hs, 271Sg(α); calculated T1/2. WKB approximation, comparison with data and other models.

doi: 10.1088/0256-307X/23/7/022
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2006ZH18      Phys.Rev. C 74, 017304 (2006)

H.Zhang, W.Zuo, J.Li, G.Royer

α decay half-lives of new superheavy nuclei within a generalized liquid drop model

RADIOACTIVITY 271Sg, 275Hs, 279Ds, 283,285Cn, 286,287,288,289Fl, 290,291,292,293Lv, 294Og(α); calculated α-decay T1/2. Z=106-120; A=264-314; calculated α-decay T1/2, Qα. Generalized liquid drop model. Comparison with other models, data.

doi: 10.1103/PhysRevC.74.017304
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2004RO03      Nucl.Phys. A730, 355 (2004)

G.Royer, K.Zbiri, C.Bonilla

Entrance channels and alpha decay half-lives of the heaviest elements

NUCLEAR REACTIONS 138Ba(132Xe, X), 174Yb(96Zr, X), 184W(86Kr, X), 204Pb(66Ni, X), 222Th, 244Pu, 248Cm(48Ca, X), 166Dy(136Xe, X), 208Pb(94Sr, X), (64Ni, X), (70Zn, X), (76Ge, X), (82Se, X), (86Kr, X), (87Rb, X), (88Sr, X), (104Ru, X), 181W(116Cd, X), 252Fm(50Ca, X), 244Pu(58Fe, X), 248Cm(50Ti, X), E not given; calculated potential barriers, related features. Other reactions discussed.

NUCLEAR STRUCTURE 283Cn, 292Lv, 295120, 311126; calculated fission barrier features. Z=112-126; A=306-323; calculated Qα, α-decay T1/2.

doi: 10.1016/j.nuclphysa.2003.11.010
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2003BO44      Acta Phys.Hung.N.S. 17, 49 (2003)

C.Bonilla, G.Royer

Be, Li, He and H Decay Half-Lives at Low Excitation Energy

NUCLEAR STRUCTURE 108Te; calculated potential barrier for 3He emission. Th, U, Pu, Cm, Cf, Fm, No, Rf, Sg, Hs; calculated α-decay T1/2. 209Pb; calculated T1/2 vs excitation energy for p, d, t, α, 3,6He, 6,7Li, 9Be emission. Generalized liquid drop model.

doi: 10.1556/APH.17.2003.1.7
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2003GH04      Phys.Rev. C 68, 014315 (2003)

R.A.Gherghescu, G.Royer

Shape isomerism of rotating 44Ti and 48Cr

NUCLEAR REACTIONS 24Mg, 28Si(20Ne, X), 32S, 36Ar(12C, X), 32S(16O, X), 24Mg(24Mg, X), E not given; calculated fusion barrier energies, deformation and shell correction energies; deduced compound nucleus deformation, related features. 44Ti, 48Cr deduced shape isomer formation mechanisms. Deformed two-center shell model.

doi: 10.1103/PhysRevC.68.014315
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2003RO03      Phys.Rev. C 67, 034315 (2003)

G.Royer, C.Bonilla, R.A.Gherghescu

Stability of rotating 44Ti, 56Ni, and 126Ba nuclei in the fusionlike deformation path

NUCLEAR REACTIONS 28Si(16O, X), (28Si, X), 64Ni(64Ni, 2n), E not given; calculated potential barriers, compound nucleus deformation and rotational energies. Generalized liquid drop model, two-center shell model.

NUCLEAR STRUCTURE 44Ti, 56Ni, 126Ba; calculated moments of inertia, quadrupole moments, deformation, excitation energy, angular momenta. Macromicroscopic calculations.

doi: 10.1103/PhysRevC.67.034315
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2002RO02      Nucl.Phys. A697, 630 (2002)

G.Royer, K.Zbiri

Asymmetric Fission for 70, 76Se and 90, 94, 98Mo via Quasimolecular Shapes and Related Formulas

NUCLEAR STRUCTURE 57Co, 70,76Se, 90,94,98Mo; calculated barrier heights for asymmetric fission. Generalized liquid drop model.

doi: 10.1016/S0375-9474(01)01265-9
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2002RO05      Nucl.Phys. A699, 479 (2002)

G.Royer, R.A.Gherghescu

On the Formation and Alpha Decay of Superheavy Elements

NUCLEAR REACTIONS 248Cm, 244Pu, 232Th, 209Bi, 207,208Pb(58Fe, X), 181W(116Cd, X), 208Pb(104Ru, X), (88Sr, X), (87Rb, X), (86Kr, X), (82Se, X), (82Ge, X), (76Ge, X), (68Zn, X), (62Ni, X), 248Cm, 209Bi, 204,206,207,208Pb(50Ti, X), 248Cm, 242,244Pu, 237Np, 238U(48Ca, X), 150Nd(142Xe, X), 160Gd(132Sn, X), 209Bi, 208Pb(70Zn, X), (64Ni, X), (49Ti, X), (48Ti, X), 244Pu, 238U(34S, X), 209Bi(59Co, X), (51V, X), 206,207,208Pb(55Mn, X), 209Bi, 206,207,208Pb(54Cr, X), 248Cm, 243Am, 244Pu(22Ne, X), 249Cf(18O, X), (15N, X), 248Cm(16O, X), 249Cf(13C, X), (12C, X), E not given; calculated fusion barrier parameters. Generalized liquid drop model.

NUCLEAR STRUCTURE Z=104-118; A=285-302; calculated Qα, α-decay T1/2. Generalized liquid drop model.

doi: 10.1016/S0375-9474(01)01296-9
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2002RO23      Phys.Rev. C65, 067304 (2002)

G.Royer, C.Bonilla, R.A.Gherghescu

The Highly Deformed Nucleus 40Ca in the Fusionlike Deformation Valley

NUCLEAR STRUCTURE 40Ca; calculated deformation and rotational energies, shell effects, quadrupole moment, superdeformed band features. Generalized rotating liquid drop model.

doi: 10.1103/PhysRevC.65.067304
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2002RO47      Acta Phys.Hung.N.S. 16, 267 (2002)

G.Royer, K.Zbiri, R.A.Gherghescu

Entrance and Exit Channels for the Heaviest Elements

NUCLEAR REACTIONS 208Pb(58Fe, X), (70Zn, X), (86Kr, X), 244Pu, 248Cm(48Ca, X), E not given; calculated fusion barrier distributions.

NUCLEAR STRUCTURE Z=108-118; A=263-300; calculated Qα, T1/2.

doi: 10.1556/APH.16.2002.1-4.29
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2001MO07      Nucl.Phys. A683, 266 (2001)

R.Moustabchir, G.Royer

Analytic Expressions for the Proximity Energy, the Fusion Process and the α Emission

NUCLEAR REACTIONS 10B, 27Al, 110Pd(12C, X), 44Ca, 59Co(α, X), 14N(14N, X), 24Mg(24Mg, X), 24Mg, 27Al(32S, X), 28Si(28Si, X), 30Si(30Si, X), 144Sm, 238U(16O, X), 58Ni(40Ca, X), 90Zr(35Cl, X), 58Ni(58Ni, X), 64Ni(64Ni, X), 112Sn, 148Sm, 165Ho, 238U(40Ar, X), 62Ni, 70Ge, 123Sb(86Kr, X), 74Ge(74Ge, X), 209Bi(37Cl, X), 104Ru(81Br, X), 90,96Zr(90Zr, X), 90Zr, 100Mo(100Mo, X), 196Os(54Cr, X), 248Cm(48Ca, X), 94Zr(124Sn, X), 209Bi(58Fe, X), 170Er(76Ge, X), E not given; calculated fusion barrier heights. Generalized liquid drop model, analytic expressions.

RADIOACTIVITY 106Te, 109,112I, 114Ba, 115Xe, 119,120Cs, 150,152Tb, 160Lu, 163Hf, 159,160,165,170W, 163,165Os, 164,169,170,187Re, 166,173,174,177Ir, 171Pt, 177,178,180,182,187,190,193Au, 187,190,192Hg, 180,182,186,194Tl, 183,185,188,192,196,202Pb, 189,201,202Bi, 190,217Po, 194,220At, 197Rn, 201,210Fr, 204Ra, 207,218Ac, 212Th, 214,228,230Pa, 222,224,225,240U, 225,227,230Np, 228,229Pu, 232,234Am, 238Cm, 240,246Bk, 253Es, 243Fm, 249,251,252,259,260Md, 250No, 252,257Lr, 255,259,262Rf, 256,260,261,263,269Db, 261Sg, 262Bh(α); calculated Qα, T1/2. Generalized liquid drop model, analytic expressions. Comparisons with data.

doi: 10.1016/S0375-9474(00)00460-7
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2001RO03      Nucl.Phys. A683, 182 (2001)

G.Royer, R.Moustabchir

Light Nucleus Emission within a Generalized Liquid-Drop Model and Quasimolecular Shapes

NUCLEAR STRUCTURE A=115-130; A=215-272; calculated barrier heights, T1/2 for cluster decay. Generalized liquid-drop model.

doi: 10.1016/S0375-9474(00)00454-1
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2000GH03      Int.J.Mod.Phys. E9, 51 (2000)

R.A.Gherghescu, G.Royer

Macroscopic-Microscopic Energy of Rotating Nuclei in the Fusion-Like Deformation Valley

NUCLEAR STRUCTURE 84Zr, 132Ce, 152Dy, 192Hg; calculated energy vs deformation and spin; deduced fusion barrier features. Two-center shell model, generalized liquid drop model, Strutinsky shell corrections.

doi: 10.1016/S0218-3013(00)00004-0
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2000RO22      J.Phys.(London) G26, 1149 (2000)

G.Royer

Alpha Emission and Spontaneous Fission Through Quasi-Molecular Shapes

NUCLEAR STRUCTURE Z=52-111; calculated α-decay T1/2. Generalized liquid drop model, quasi-molecular shapes.

doi: 10.1088/0954-3899/26/8/305
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1998RO11      Nucl.Phys. A632, 275 (1998)

G.Royer, R.K.Gupta, V.Yu.Denisov

Cluster Radioactivity and Very Asymmetric Fission Through Compact and Creviced Shapes

RADIOACTIVITY 222,223,224,226Ra(14C), 228Th(20O), 230Th, 231Pa, 232,233,234U(24Ne), 234,235U, 236,238Pu(28Mg), 238Pu(32Si); calculated cluster decay potential barriers, deformation energy, Q-values, T1/2. Liquid drop model.

NUCLEAR STRUCTURE 222,223,224,226Ra, 228,230Th, 231Pa, 232,233,234,235U, 236,238Pu; calculated cluster decay potential barriers, deformation energy, Q-values, T1/2. Liquid drop model.

doi: 10.1016/S0375-9474(97)00801-4
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1998RO18      Nucl.Phys. A634, 267 (1998)

G.Royer, C.Normand, E.Druet

Analytic Description of the Fusion and Fission Processes Through Compact Quasi-Molecular Shapes

NUCLEAR REACTIONS 10B, 27Al, 110Pd(12C, X), 44Ca, 59Co(α, X), 24Mg, 27Al(32S, X), 144Sm, 238U(16O, X), 58Ni(40Ca, X), 90Zr(35Cl, X), 112Sn, 148Sm, 165Ho, 238U(40Ar, X), 62Ni, 70Ge, 123Sb(86Kr, X), 209Bi(37Cl, X), (58Fe, X), 104Ru(81Br, X), 90,96Zr(90Zr, X), 90Zr, 100Mo(100Mo, X), 196Os(54Cr, X), 248Cm(48Ca, X), 94Zr(124Sn, X), 170Er(76Ge, X), 14N(14N, X), 24Mg(24Mg, X), 28Si(28Si, X), 30Si(30Si, X), 58Ni(58Ni, X), 64Ni(64Ni, X), 74Ge(74Ge, X), 96Zr(96Zr, X), E not given; calculated fusion barrier height, position. Generalized liquid drop model.

NUCLEAR STRUCTURE 109Cd, 149Eu, 152Tb, 157Ho, 173Lu, 179Ta, 180W, 185Re, 191Ir, 195Au, 201Tl, 206Pb, 209Bi, 213At, 216Rn, 226Ac, 232Th; calculated fission barrier heights; deduced shell effects. Generalized liquid drop model.

doi: 10.1016/S0375-9474(98)00143-2
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1998RO25      Acta Phys.Hung.N.S. 7, 59 (1998)

G.Royer

Deformation Valleys Through Quasi-Molecular and Toroidal Shapes


1998RO41      Nuovo Cim. 111A, 875 (1998)

G.Royer

Fission, Cluster Emission and Hyperdeformation at High Angular Momentum in the Fusion-Like Deformation Valley

doi: 10.1007/BF03035972
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1997JO05      Nucl.Phys. A615, 82 (1997)

B.Jouault, G.Royer, J.F.Lecolley, F.Sebille, F.Haddad

Comparison between the Fragmentation Processes in Central Pb + Ag and Pb + Au Collisions

NUCLEAR REACTIONS Ag(Pb, X), E=29 MeV/nucleon; 197Au(Pb, X), E=29 MeV/nucleon; calculated densities, Coulomb, surface energies time evolution, fragment velocities, kinetic energies. Landau-Vlasov model, medium mass fragmentation process.

doi: 10.1016/S0375-9474(96)00477-0
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1997RO24      Nuovo Cim. 110A, 1061 (1997)

G.Royer

Nuclear Clusters in Exit and Entrance Channels

RADIOACTIVITY 222,223,224,226Ra(14C); 228Th(20O); 230Th, 231Pa, 232,233,234U(24Ne); 234,235U, 236,238Pu(28Mg); 238Pu(32Si); calculated T1/2, barrier, tunneling features. Generalized liquid drop model.

doi: 10.1007/BF03035946
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1996FA04      Nucl.Phys. A598, 125 (1996)

C.Fauchard, G.Royer

Deformation Energy of a Toroidal Nucleus and Plane Fragmentation Barriers

NUCLEAR STRUCTURE 147Tb, 240Pu, 322128; calculated deformation plus rotational energies vs rms radius, angular momentum. Toroidal nucleus, plane fragmentation barriers.

doi: 10.1016/0375-9474(95)00423-8
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1996HA07      Phys.Rev. C53, 1437 (1996)

F.Haddad, J.B.Natowitz, B.Jouault, V.de la Mota, G.Royer, F.Sebille

Compressibility Probed by Linear Momentum Transfer

NUCLEAR REACTIONS 238U(16O, X), E=20-70 MeV/nucleon; 154Sm, 238U(14N, X), 232Th(α, X), 58Ni, 238U(12C, X), 68Zn, 232Th, 197Au(40Ar, X), E not given; analyzed linear momentum transfer related features, compressibility characteristics for these, other reactions. Landau-Vlasov model.

doi: 10.1103/PhysRevC.53.1437
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1996JO04      Nucl.Phys. A597, 136 (1996)

B.Jouault, V.de la Mota, F.Sebille, G.Royer, J.F.Lecolley

Dynamical Analysis of Isospin and Angular Momentum Effects in Peripheral Heavy-Ion Reactions

NUCLEAR REACTIONS 197Au(Pb, X), E=29 MeV/nucleon; analyzed data; deduced dynamical, out-of-equilibrium effects role.

doi: 10.1016/0375-9474(95)00428-9
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1996RO18      Nucl.Phys. A605, 403 (1996)

G.Royer, F.Haddad, B.Jouault

Rotating Bubble and Toroidal Nuclei and Fragmentation

NUCLEAR REACTIONS 197Au(208Pb, X), E=29 MeV/nucleon; calculated nuclear densities time evolution, fragment emission origin, rotating bubble, toroidal nuclei energies. Generalized rotating liquid drop model.

doi: 10.1016/0375-9474(96)00130-3
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1995DE34      Yad.Fiz. 58, No 3, 448 (1995); Phys.Atomic Nuclei 58, 397 (1995)

V.Yu.Denisov, G.Royer

Multidimensional Model of Subbarier Heavy-Ion Fusion

NUCLEAR REACTIONS, ICPND 92,96Zr(64Ni, X), E(cm) ≈ 115-165 MeV; 100Mo(64Ni, X), E(cm) ≈ 125-150 MeV; calculated fusion σ(E). Multi-dimensional model.


1995HA44      J.Phys.(London) G21, 1357 (1995)

F.Haddad, G.Royer

On the Competition between Symmetric and Asymmetric Fission

NUCLEAR STRUCTURE 86Kr, 205At; calculated potential energy surface vs asymmetry, distance between mass centers. 39K, 65Zn, 96Mo, 132Xe, 159Tb, 190Os; calculated normalized conditional saddle point energy vs mass asymmetry, temperature; deduced symmetric, asymmetric fission competition. Generalized rotating liquid drop model.

doi: 10.1088/0954-3899/21/10/009
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1995JO19      Nucl.Phys. A591, 497 (1995)

B.Jouault, F.Sebille, G.Royer, V.de la Mota

Fragmentation in Central Pb + Au Collisions within a Microscopic Dynamic Approach

NUCLEAR REACTIONS 197Au(208Pb, X), E=29 MeV/nucleon; analyzed mean density, surface, Coulomb, collective energies time evolution. Microscopic dynamic approach.

doi: 10.1016/0375-9474(95)00174-Y
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1995RO07      J.Phys.(London) G21, 249 (1995)

G.Royer

On the Fission of 56Ni and 48Cr Rotating Nuclei

NUCLEAR STRUCTURE 56Ni, 48Cr; calculated deformation, rotational energies, l-dependent deformation barriers vs moment of inertia, saddle point energies, fission barrier heights, fragments kinetic energy vs asymmetry. Rotating nuclei, symmetric, asymmetric fission, generalized liquid drop model.

doi: 10.1088/0954-3899/21/2/012
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1995RO08      J.Phys.(London) G21, 339 (1995)

G.Royer, F.Haddad

On the Stability of Rotating Nuclei Against Fission Through Creviced Shapes

NUCLEAR STRUCTURE 24Mg, 72Se, 132Ce, 191Hg; calculated deformation rotational energy vs deformation, compact, crevice shaped path. A=20-120; calculated angular momentum, excitation energy, moment of inertia, mass quadrupole moment, hyperdeformed nuclei.

NUCLEAR REACTIONS 100Mo(55Mn, X), 76Ge(81Br, X), 120Sn(37Cl, X), E not given; calculated deformation, rotational energies vs moment of inertia, angular momentum; deduced hyperdeformed states population related features.

doi: 10.1088/0954-3899/21/3/009
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1995RO10      Phys.Rev. C51, 2813 (1995)

G.Royer, F.Haddad

Asymmetric Fission Barriers and Total Kinetic Energies for 194Hg, 149Tb, 110-112In, 94Mo, and 75Br

NUCLEAR STRUCTURE 149Tb, 75Br, 94Mo, 52Fe, 110,111,112In, 194Hg; calculated total kinetic energy, fission barrier heights vs fragment charge.

doi: 10.1103/PhysRevC.51.2813
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1994DE06      J.Phys.(London) G20, L43 (1994)

V.Yu.Denisov, G.Royer

Sub-Barrier Fusion of 64Ni + 100Mo

NUCLEAR REACTIONS, ICPND 100Mo(64Ni, X), E(cm) ≈ 125-150 MeV; calculated fusion σ(E). Multi-dimensional fusion model, data analysis.

doi: 10.1088/0954-3899/20/2/004
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1994HA10      Nucl.Phys. A572, 459 (1994)

F.Haddad, G.Royer, F.Sebille, B.Remaud

From Fission to Scattering in the 100Mo (18.7 MeV/u) + 100Mo Reaction within a Microscopic Dynamic Approach

NUCLEAR REACTIONS 100Mo(100Mo, F), E=18.7 MeV/nucleon; calculated symmetric fission, fragmentation barriers. 100Mo(100Mo, X), E=18.7 MeV/nucleon; calculated per nucleon collective energy vs time from equilibration, other reaction dynamics. Landau-Vlasov transport equation.

doi: 10.1016/0375-9474(94)90184-8
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1994RO17      J.Phys.(London) G20, L131 (1994)

G.Royer, F.Haddad

On the Plane Fragmentation Barriers

NUCLEAR STRUCTURE 80Br, 240Pu; calculated fragmentation barrier vs fragment number, temperature. Generalized liquid drop model.

doi: 10.1088/0954-3899/20/11/002
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1993RO04      Phys.Rev. C47, 1302 (1993)

G.Royer, F.Haddad

Hyperdeformation in 152Dy at Very High Spins

NUCLEAR STRUCTURE 152Dy; calculated macroscopic, rotational energies, rigid moment of inertia, electric quadrupole moment vs deformation. 58Ni; calculated macroscopic, rotational energies vs deformation. 152Dy deduced hyperdeformed states evidence. Rotational liquid drop model.

doi: 10.1103/PhysRevC.47.1302
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1992HA20      J.Phys.(London) G18, L153 (1992)

F.Haddad, G.Royer

On the Symmetric Fragmentation Barrier at Finite Temperature

NUCLEAR STRUCTURE 139La; calculated potential energy, fragmentation barriers vs fragment number, temperature. Liquid-drop model, nuclear proximity effects.

doi: 10.1088/0954-3899/18/8/005
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1992RO18      J.Phys.(London) G18, 1781 (1992)

G.Royer, J.Mignen

Binary and Ternary Fission of Hot and Rotating Nuclei

NUCLEAR STRUCTURE A < 250; 40Ca, 109Cd, 197Au, 240Pu; calculated barrier heights for binary, ternary symmetric, asymmetric fission. Hot rotating nuclei, rotational liquid drop model.

NUCLEAR REACTIONS 14N(14N, X), 30Si(30Si, X), 74Ge(74Ge, X), 90Zr(90Zr, X), E not given; calculated fusion fission barrier heights vs separation distance, temerature. Hot rotating nuclei, rotational liquid drop model.

doi: 10.1088/0954-3899/18/11/011
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1992RO19      J.Phys.(London) G18, 1805 (1992)

G.Royer, C.Piller

Fusion Barrier Lowering Induced by Nuclear Deformations

NUCLEAR REACTIONS, ICPND 154Sm(16O, X), E=60-110 MeV; calculated fusion σ(E). Two colliding, spherical, ellipsoidal systems. Liquid drop model, nuclear proximity energy.

doi: 10.1088/0954-3899/18/11/013
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1992RO20      J.Phys.(London) G18, 2015 (1992)

G.Royer, F.Haddad, J.Mignen

On Nuclear Ternary Fission

NUCLEAR STRUCTURE 56Fe, 149Eu, 240Pu; calculated deformation energy temperature dependence, symmetric, asymmetric prolate ternary fission. Liquid drop model.

doi: 10.1088/0954-3899/18/12/017
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1991GA04      Phys.Lett. 255B, 311 (1991)

F.Garcias, V.De La Mota, B.Remaud, G.Royer, F.Sebille

Dynamics of Hot Rotating Nuclei

NUCLEAR STRUCTURE 40Ca; calculated binding energy per nucleon, rms radius, deexcitation channels phase diagram; deduced fission disappearance at high excitation. Hot rotating nuclei, microscopic semi-classical transport formalism.

doi: 10.1016/0370-2693(91)90771-H
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1991OU01      J.Phys.(London) G17, 1415 (1991)

A.Oubahadou, R.Dayras, G.Royer

Relaxed and Quasi-Projectile Fragments in Heavy-Ion Reactions

NUCLEAR REACTIONS 197Au(40Ar, X), E=35 MeV/nucleon; 109Ag(40Ar, X), E=60 MeV/nucleon; analyzed data; deduced low, hight fragment velocity components features. Three-Body dynamic model, projectile two-body fragmentation.

doi: 10.1088/0954-3899/17/9/015
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1991RO06      Phys.Rev. C44, 2226 (1991)

G.Royer, B.Remaud, F.Sebille, V.de la Mota

Semiclassical Simulation of Sudden Nucleus Scission with Two-Body Collisions

NUCLEAR STRUCTURE 40Ca; calculated fission barrier heights. Semi-classical simulation, two-body collision effects.

doi: 10.1103/PhysRevC.44.2226
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1990MI20      J.Phys.(London) G16, L227 (1990)

J.Mignen, G.Royer

A Geometric Model for Ternary Fission

NUCLEAR STRUCTURE 240Pu, 212Po; calculated ternary fission shapes. Geometric model.

doi: 10.1088/0954-3899/16/10/004
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1990RO07      J.Phys.(London) G16, 723 (1990)

G.Royer, C.Piller

Relaxed-Density Potential of Deformed U + U Nuclei

NUCLEAR REACTIONS 238U(238U, 238U), E not given; calculated total energy, Coulomb potential vs inter-nuclear distance. Liquid drop model, proximity forces.

doi: 10.1088/0954-3899/16/5/009
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1990RO08      J.Phys.(London) G16, 1077 (1990)

G.Royer, C.Piller, J.Mignen, Y.Raffray

Potential Surfaces in Symmetric Heavy-Ion Reactions

NUCLEAR REACTIONS 13C(12C, X), 14N(14N, X), 16O(16O, X), 30Si(30Si, X), 40Ca(40Ca, X), 58Ni(58Ni, X), 74Ge(74Ge, X), 80Se(80Se, X), E not given; calculated fusion barrier heights.

doi: 10.1088/0954-3899/16/7/017
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1989RO01      J.Phys.(London) G15, L1 (1989)

G.Royer, J.Mignen

Fission Barrier of Projectiles in Heavy-Ion Reactions

NUCLEAR STRUCTURE 12C, 40Ar, 84Kr, 136Xe; calculated symmetric fragmentation fission, potential barriers.

doi: 10.1088/0954-3899/15/1/001
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1989RO05      Nucl.Phys. A494, 267 (1989)

G.Royer, C.Piller, J.Mignen, B.Remaud

Prolate Deformations Induced by the Proximity Forces in the Scission Region

NUCLEAR STRUCTURE 149Eu, 160Dy, 191Ir, 209Bi, 225Ra, 238Np, 242Am, 253Cf; calculated fission barrier heights. 40Ar, 258Fm; calculated deformation energy vs mass centers distance. 109Cd, 198Hg; calculated deformation energy vs mass center distance, fission barrier heights. Liquid drop model, nuclear proximity energy.

doi: 10.1016/0375-9474(89)90023-7
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1989SE10      Nucl.Phys. A501, 137 (1989)

F.Sebille, G.Royer, C.Gregoire, B.Remaud, P.Schuck

Nuclear Dynamics with the (Finite-Range) Gogny Force: Flow effects

NUCLEAR REACTIONS 93Nb(93Nb, X), E=150 MeV/nucleon; calculated average density time evolution. Landau-Vlasov equation, Gogny force.

doi: 10.1016/0375-9474(89)90569-1
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1988MI23      Nucl.Phys. A489, 461 (1988)

J.Mignen, G.Royer, F.Sebille

Comparison between the Symmetric Fission and Fusion Paths

NUCLEAR STRUCTURE 40Ca, 109Cd, 160Dy, 240Pu; calculated deformation energy vs fission fragment distance. Liquid drop model, nuclear proximity energy.

doi: 10.1016/0375-9474(88)90007-3
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1987MI30      J.Phys.(London) G13, 987 (1987)

J.Mignen, G.Royer

Ternary Fission through Compact and Creviced Shapes

NUCLEAR REACTIONS 238U(238U, F), E not given; calculated compound nucleus binary, ternary fission barrier.

NUCLEAR STRUCTURE 212Po, 252Cf, 262Rf, 294Ds, 302og; calculated binary, ternary fission barriers.

doi: 10.1088/0305-4616/13/7/012
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1987RO10      Nucl.Phys. A466, 139 (1987)

G.Royer, Y.Raffray, A.Oubahadou, B.Remaud

On the Projectile Fragmentation in Heavy-ion Reactions at Intermediate Energies

NUCLEAR REACTIONS 197Au(20Ne, X), E=7.5-20 MeV/nucleon; 109Ag(40Ar, X), E=27 MeV/nucleon; 27Al(40Ar, X), E=40 MeV/nucleon; 197Au(40Ar, X), E=35 MeV/nucleon; calculated projectile-like fragment energy spectra.

NUCLEAR STRUCTURE 20Ne; calculated fission fragmentation potential barriers for 10B to d final products. 40Ar; calculated fission fragmentation potential barriers for 20F to α final products.

doi: 10.1016/0375-9474(87)90350-2
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1986RO12      J.Phys.(London) G12, 623 (1986)

G.Royer

Relaxed-Density Potential and Fusion Cross-Section Saturation for Light and Medium Nuclei

NUCLEAR REACTIONS, ICPND 110Pd(40Ar, X), E=150-300 MeV; 62Ni(35Cl, X), E=60-180 MeV; 116Sn, 141Pr(35Cl, X), E(cm)=120-240 MeV; 208Pb(26Mg, X), E=100-250 MeV; 208Pb(27Al, X), E ≈ 100-250 MeV; 76Ge(32S, X), E(cm) ≈ 70-250 MeV; 35Cl(27Al, X), E ≈ 33.3-100 MeV; 40Ca(16O, X), E(cm) ≈ 25-100 MeV; 233U(α, X), E ≈ 25-100 MeV; 28Si(16O, X), E(cm) ≈ 16.6-100 MeV; 23Na(19F, X), E(cm)=20-100 MeV; 12C(19F, X), E(cm) ≈ 10-33.3 MeV; 26Mg(12C, X), E(cm) ≈ 12.5-50 MeV; 14N(13C, X), E(cm) ≈ 14-100 MeV; 10B(16O, X), E(cm) ≈ 8.5-33.3 MeV; calculated fusion σ(E), barrier heights, positions. Relaxed density potential.

doi: 10.1088/0305-4616/12/7/011
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1985RO20      Nucl.Phys. A444, 477 (1985)

G.Royer, B.Remaud

Static and Dynamic Fusion Barriers in Heavy-Ion Reactions

NUCLEAR REACTIONS 209Bi, 165Ho(84Kr, X), 208Pb(64Ni, X), (58Fe, X), (50Ti, X), 110Pd(136Xe, X), 238U, 165Ho(56Fe, X), 160Gd, 123Sb(86Kr, X), 197Au(63Cu, X), 170Er(76Ge, X), 209Bi, 208Pb(58Fe, X), 110Pd(110Pd, X), 94Zr(124Sn, X), 209Bi(54Cr, X), 208Pb(52Cr, X), 249Cm(48Ca, X), 209Bi, 208Pb(50Ti, X), 238U, 206Pb, 197Au, 165Ho(40Ar, X), 208Pb(48Ca, X), 90Zr(90Zr, X), 197Au(35Cl, X), 208Pb(32S, X), E not given; calculated fusion barrier heights, σ(E), potential energy. Liquid drop model, nuclear proximity energy.

doi: 10.1016/0375-9474(85)90464-6
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1984RO16      J.Phys.(London) G10, 1057 (1984)

G.Royer, B.Remaud

Fission Process through Compact and Creviced Shapes

NUCLEAR STRUCTURE 109Cd, 160Dy, 166Os, 198Hg, 212Po, 228Ra, 232Th, 234U, 240Pu, 246Cm; calculated fission barrier heights. One-parameter compact, creviced shapes.

doi: 10.1088/0305-4616/10/8/011
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1984RO23      J.Phys.(London) G10, 1541 (1984)

G.Royer, B.Remaud

On the Fission Barrier of Heavy and Superhheavy Nuclei

NUCLEAR STRUCTURE 149Eu, 152Tb, 157Ho, 173Lu, 179Ta, 180W, 185Re, 191Ir, 195Au, 201Tl, 206Pb, 209Bi, 213At, 216Rn, 226Ac, 238U, 244Pu, 242Am, 250Bk, 253Cf; calculated fission barrier heights. 238U, 246Cm, 258Fm, 260Rf, 294Ds, 298Fl, 302Og, 306122; calculated deformation energy vs mass centers distance. Liquid drop model, proximity interaction effects.

doi: 10.1088/0305-4616/10/11/010
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1983RO16      J.Phys.(London) G9, 1103 (1983)

G.Royer, B.Remaud

Symmetrical Fusion of Heavy Ions around the Coulomb Barrier Energy

NUCLEAR REACTIONS, ICPND 13C(13C, X), E(cm) ≈ 3-15 MeV; 40Ca(40Ca, X), E(cm) ≈ 55-75 MeV; 28Si(28Si, X), E(cm) ≈ 33-100 MeV; 16O(16O, X), E(cm) ≈ 12-25 MeV; 58Ni(58Ni, X), E(cm)=95-105 MeV; 64Ni(64Ni, X), E(cm)=90-105 MeV; 90Zr(90Zr, X), E(cm) ≈ 180-205 MeV; calculated fusion σ(E); deduced fusion mechanism, barrier characteristics. Liquid drop model, neck degree of freedom, tunnelling effects.

doi: 10.1088/0305-4616/9/9/014
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