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NSR database version of April 29, 2024.

Search: Author = F.Guzman

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2020AB10      Eur.Phys.J.Plus 135, 845 (2020)

M.Abbasi, H.Panjeh, R.Perez, A.Deppman, E.Andrade II, F.Velasco, F.Guzman

Heavy-ion-induced fission of ¹⁸¹Ta and ²⁰⁹Bi at intermediate energies by CRISP model

NUCLEAR REACTIONS ¹⁸¹Ta, ²⁰⁹Bi(¹¹B, X), E=125.7, 245.4, 146 MeV; analalyzed available data; calculated σ, mass-yield distributions using the CRISP code.

doi: 10.1140/epjp/s13360-020-00828-4
Citations: PlumX Metrics

2019RO22      J.Phys.(London) G46, 115109 (2019)

U.B.Rodriguez, C.Z.Vargas, M.Goncalves, S.B.Duarte, F.Guzman

Alpha half-lives calculation of superheavy nuclei with Q_α-value predictions based on the Bayesian neural network approach

RADIOACTIVITY ²⁵⁹Sg, ²⁶⁹Hs, ²⁷³Ds, ²⁷²Rg, ^289,290Mc, ²⁹⁴Og(α); analyzed available data; deduced Q-values. Comparison with available data.

doi: 10.1088/1361-6471/ab2c86
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2018AN03      J.Phys.(London) G45, 015105 (2018)

E.Andrade, Jr., G.S.Karapetyan, A.Deppman, J.L.Bernal-Castillo, V.Guimaraes, A.R.Balabekyan, J.Adam, F.Garcia, F.Guzman

Systematic study of fission modes in the proton-induced fission of actinide and pre-actinide

NUCLEAR REACTIONS ²⁴¹Am, ²³⁷Np, ²³⁸U(p, X), E=26.5, 62.9, 660 MeV; ²³²Th(p, X), E=6.5, 62.9, 190 MeV; ²⁰⁸Pb(p, X), E=190, 500, 1000 MeV; ¹⁹⁷Au(p, X), E=190, 800 MeV; analyzed available data in the framework of the Random Neck Rupture Model; deduced the roles of the neutron excess and of the so called fissility parameter.

doi: 10.1088/1361-6471/aa9a0c
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2018TU10      J.Phys.(London) G45, 115103 (2018)

O.Tumbarell, F.Guzman, F.G.Velasco, J.L.Bernal-Castillo, O.Rodriguez, A.Samana, E.Andrade II, A.Deppman

Calculation of the Coulomb barrier and the level density parameter at the fission saddle point in spallation nuclear reactions

NUCLEAR REACTIONS ²⁰⁸Pb, ²³⁸U(p, X), E=1 GeV; calculated average values of the number of emitted particles as a function of the excitation energy of the initial residual nuclei, kinetic energy distribution of the emitted particles, considering fission.

doi: 10.1088/1361-6471/aae3d7
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2017VA26      Phys.Rev. C 96, 054606 (2017)

D.Vargas, A.R.Samana, F.G.Velasco, O.R.Hoyos, F.Guzman, J.L.Bernal-Castillo, E.Andrade II, R.Perez, A.Deppman, C.A.Barbero, A.E.Mariano

Nuclear medium effects in muonic neutrino interactions with energies from 0.2 to 1.5 GeV

NUCLEAR REACTIONS ²H, ¹²C, ¹⁶O, ²⁷Al, ⁴⁰Ar, ⁵⁶Fe, ²⁰⁸Pb(ν, X), E=0.2-1.5 GeV; calculated σ(E) data, energy distributions for π⁺ and μ^- spectra in the framework of Monte Carlo calculation in the intranuclear cascade model. Comparison with experimental data.

doi: 10.1103/PhysRevC.96.054606
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2014GO14      Phys.Rev. C 89, 054613 (2014)

I.Gonzalez, F.Guzman, A.Deppman

Nuclear photoproduction of vector mesons within a Monte Carlo approach

doi: 10.1103/PhysRevC.89.054613
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2006AR17      Phys.Rev. C 74, 034324 (2006)

J.D.T.Arruda-Neto, J.Mesa, F.Garcia, O.Rodriguez, L.P.Geraldo, C.Garcia, T.E.Rodrigues, K.Shtejer, R.Semmler, F.Guzman

Role of transitional levels in ²³⁷Np(γ, f): Perspectives for studying highly deformed systems

NUCLEAR REACTIONS ²³⁷Np(γ, F), E ≈ 5-7 MeV; analyzed photofission σ; calculated fission barrier surfaces, transition levels. Semimicroscopic combined method.

doi: 10.1103/PhysRevC.74.034324
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2004DU23      J.Phys.(London) G30, 1487 (2004)

S.B.Duarte, O.A.P.Tavares, M.Goncalves, O.Rodriguez, F.Guzman, T.N.Barbosa, F.Garcia, A.Dimarco

Half-life predictions for decay modes of superheavy nuclei

NUCLEAR STRUCTURE Z=110-135; calculated α-decay, cluster-decay, and cold fission T_1/2. Effective liquid-drop model.

RADIOACTIVITY ^287,288Mc, ^283,284Nh, ^279,280Rg(α); calculated T_1/2, Qα. Effective liquid-drop model, comparison with data.

doi: 10.1088/0954-3899/30/10/014
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2003ME28      Phys.Rev. C 68, 054608 (2003)

J.Mesa, J.D.T.Arruda-Neto, A.Deppman, V.P.Likhachev, M.V.Manso, C.E.Garcia, O.Rodriguez, F.Guzman, F.Garcia

New calculation for the neutron-induced fission cross section of ²³³Pa between 1.0 and 3.0 MeV

NUCLEAR REACTIONS ²³³Pa(n, F), E=1-3 MeV; calculated fission σ. Comparison with data.

NUCLEAR STRUCTURE ²³⁴Pa; calculated potential energy surfaces, level densities.

doi: 10.1103/PhysRevC.68.054608
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2002DU16      At.Data Nucl.Data Tables 80, 235 (2002)

S.B.Duarte, O.A.P.Tavares, F.Guzman, A.Dimarco, F.Garcia, O.Rodriguez, M.Goncalves

Half-Lives for Proton Emission, Alpha Decay, Cluster Radioactivity, and Cold Fission Processes Calculated in a Unified Theoretical Framework

RADIOACTIVITY ¹⁰⁵Sb, ¹⁰⁹I, ^112,113Cs, ¹¹⁷La, ¹³¹Eu, ^140,141Ho, ^145,146,147Tm, ^150,151Lu, ^156,157Ta, ^160,161Re, ^165,166,167Ir, ¹⁷¹Au, ¹⁸⁵Bi(p); calculated proton emission T_1/2. ²²¹Fr, ^{221,222,223,224,226}Ra, ²²⁵Ac(¹⁴C); ²²⁸Th(²⁰O); ²³⁰Th, ²³¹Pa, ^232,233,234U(²⁴Ne); ²³⁴U(²⁶Ne); ²³⁴U, ^236,238Pu(²⁸Mg); ²³⁸Pu(³⁰Mg), (³²Si); ²⁴²Cm(³⁴Si); calculated cluster emission T_1/2. ^258,259Fm, ^259,260Md, ^258,262No(SF); calculated fission fragment mass distributions. Z=27-111; A=50-273; calculated T_1/2, Q for p-decay, α-decay, cluster emission. Z=82-111; A=180-272; calculated cold fission T_1/2. Effective liquid drop model, comparisons with data.

doi: 10.1006/adnd.2002.0881
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2001RO18      Comput.Phys.Commun. 137, 405 (2001)

O.Rodriguez, F.Garcia, H.Dias, J.Mesa, J.D.T.Arruda-Neto, E.Garrote, F.Guzman

LINDEN: Code for level density calculations of deformed nuclei using Lipkin-Nogami projectors in the BCS approach

NUCLEAR STRUCTURE ²³³U; calculated levels, J, π. Lipkin-Nogami pairing model, comparison with data.

2000DI17      Int.J.Mod.Phys. E9, 205 (2000)

A.Dimarco, S.B.Duarte, O.A.P.Tavares, M.Goncalves, F.Garcia, O.Rodriguez, F.Guzman

Effect of Nuclear Deformation on the Alpha-Decay Half-Life of Even-Even Alpha Emitters

NUCLEAR STRUCTURE Z=52-108; calculated α-decay T_1/2, deformation effects. Comparison with data.

doi: 10.1016/S0218-3013(00)00014-3
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2000GA25      J.Phys.(London) G26, 755 (2000)

F.Garcia, O.Rodriguez, M.Goncalves, S.B.Duarte, O.A.P.Tavares, F.Guzman

Alpha Decay and Nuclear Deformation: The case for favoured alpha transitions of even-even emitters

RADIOACTIVITY A=106-264(α); calculated T_1/2 including quadrupole deformation effects. Comparison with experimental values.

doi: 10.1088/0954-3899/26/6/301
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1999GA40      Eur.Phys.J. A 6, 49 (1999)

F.Garcia, E.Garrote, M.-L.Yoneama, J.D.T.Arruda-Neto, J.Mesa, F.Bringas, J.F.Dias, V.P.Likhachev, O.Rodriguez, F.Guzman

Woods-Saxon Potential Parametrization at Large Deformations for Plutonium Odd Isotopes

NUCLEAR STRUCTURE ^237,239,241Pu; calculated single-particle levels, J, π, deformation; deduced spin-orbit parameterization. Woods-Saxon potential.

doi: 10.1007/s100500050316
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1999GA50      Phys.Rev. C60, 064311 (1999); Erratum Phys.Rev. C 80, 039903 (2009)

F.Garcia, O.Rodriguez, F.Guzman, H.Dias, J.D.T.Arruda-Neto, M.S.Hussein, A.K.Kerman

Particle-Hole Level Densities in Deformed Nuclei

NUCLEAR STRUCTURE ²³³Th, ²³⁹U; calculated potential energy surfaces, particle-hole level densities; deduced deformation effects. Microscopic combinatorial approach.

doi: 10.1103/PhysRevC.60.064311
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1999GU08      Phys.Rev. C59, R2339 (1999)

F.Guzman, M.Goncalves, O.A.P.Tavares, S.B.Duarte, F.Garcia, O.Rodriguez

Proton Radioactivity from Proton-Rich Nuclei

RADIOACTIVITY ⁵⁵Cu, ⁵⁸Ge, ¹⁰⁵Sb, ¹⁰⁹I, ^112,113Cs, ¹⁴²Ho, ^146,147Tm, ^150,151Lu, ^156,157Ta, ^160,161Re, ^165,166,167Ir, ¹⁷¹Au, ^177,178,179Tl, ^185,187Bi(p); calculated proton decay T_1/2. Effective liquid drop model. Comparison with data.

doi: 10.1103/PhysRevC.59.R2339
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1999RO01      Phys.Rev. C59, 253 (1999)

O.Rodriguez, F.Guzman, S.B.Duarte, O.A.P.Tavares, F.Garcia, M.Goncalves

New Valleys of Cold Fission and Cluster Radioactivity Processes from Nuclei Far from the β-Stability Line

RADIOACTIVITY Rn, Po, Pb; calculated α-decay T_1/2. Ba, Sn, Po, Bi; calculated cluster decay T_1/2 in neutron-deficient isotopes; deduced shell effects. Geiger-Nutall systematics.

doi: 10.1103/PhysRevC.59.253
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1998AR13      Nucl.Phys. A638, 701 (1998)

J.D.T.Arruda-Neto, S.Simionatto, V.P.Likhachev, F.Garcia, J.Mesa, A.Deppman, O.Rodriguez, F.Guzman

Photoneutron Multiplicities of Preactinide Nuclei at Energies Above the Pion Threshold

NUCLEAR REACTIONS Ce, Sn, Pb, Ta, ¹⁹⁷Au, ¹⁸²W(γ, X), E < 250 MeV; analyzed average neutron multiplicities; deduced pion reabsorption role.

doi: 10.1016/S0375-9474(98)00215-2
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1998DU05      Phys.Rev. C57, 2516 (1998)

S.B.Duarte, O.Rodriguez, O.A.P.Tavares, M.Goncalves, F.Garcia, F.Guzman

Cold Fission Description with Constant and Varying Mass Asymmetries

RADIOACTIVITY ²³⁴U(SF); calculated T_1/2, fragments mass distributions. Comparison of constant, variable mass asymmetry descriptions. Alpha, cluster radioactivity also discussed.

doi: 10.1103/PhysRevC.57.2516
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1998TA21      J.Phys.(London) G24, 1757 (1998)

O.A.P.Tavares, S.B.Duarte, O.Rodriguez, F.Guzman, M.Goncalves, F.Garcia

Effective Liquid Drop Description for Alpha Decay of Atomic Nuclei

NUCLEAR STRUCTURE Z=52-111; calculated α-decay T_1/2. Effective liquid drop model. Comparison with data.

doi: 10.1088/0954-3899/24/9/009
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1997AR09      Phys.Rev. C55, 2471 (1997)

J.D.T.Arruda-Neto, M.-L.Yoneama, J.F.Dias, F.Garcia, M.A.V.Reigota, V.P.Likhachev, F.Guzman, O.Rodriguez, J.Mesa

Electrofission of ²³⁹Pu in the Energy Range 7-12 MeV

NUCLEAR REACTIONS ²³⁹Pu(e, F), E=7-12 MeV; measured fission σ(E). ²³⁹Pu deduced levels M1 fission strength. Enriched target. DWBA, virtual phonon analyses.

doi: 10.1103/PhysRevC.55.2471
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