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NSR database version of May 3, 2024.

Search: Author = S.Rana

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2024RA16      Phys.Rev. C 109, 044613 (2024)

Sh.Rana, M.Bhuyan, S.K.Patra, R.Kumar

Nuclear incompressibility and its enduring impact on fusion cross sections

doi: 10.1103/PhysRevC.109.044613
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2022BH05      Phys.Rev. C 106, 044602 (2022)

M.Bhuyan, S.Rana, N.Jain, R.Kumar, S.K.Patra, B.V.Carlson

Medium-dependent relativistic NN potential: Application to fusion dynamics

NUCLEAR REACTIONS ⁴⁰Ca(¹⁶O, X), E(cm)=20-40 MeV;⁵⁸Ni(⁴⁰Ca, X), E(cm)=65-100 MeV;⁹⁰Zr(⁴⁰Ca, X), E(cm)=65-120 MeV;¹⁴⁴Sm(¹⁶O, X), E(cm)=55-80 MeV;²⁰⁸Pb(¹⁶O, X), E(cm)=70-90 MeV;²⁰⁸Pb(⁴⁸Ca, X), E(cm)=170-220 MeV; calculated positions and heights of the fusion barriers, fusion σ(E). Calculations using R3Y NN potential described in terms of density-dependent nucleonmeson couplings within the framework of the relativistic-Hartree-Bogoliubov (RHB) approach. Comparison to the available experimental data and calculations using different forms of the NN potential (R3Y, DDR3Y, M3Y, and DDM3Y).

doi: 10.1103/PhysRevC.106.044602
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2022KU11      Phys.Rev. C 105, 044606 (2022)

R.Kumar, S.Rana, M.Bhuyan, P.Mohr

Fusion cross section of α-induced reactions for heavy target nuclei

NUCLEAR REACTIONS ²⁰⁸Pb, ²⁰⁹Bi, ^235,238U(α, X), E=15-30 MeV; calculated fusion σ(E), fusion barrier, astrophysical S-factor. Nonrelativistic Skryme-Hartree-Fock (SHF) and the relativistic mean-field (RMF) formalisms for the NL3^* parameter set along with density-dependent M3Y and relativistic R3Y effective potentials. Comparison to available experimental data.

NUCLEAR STRUCTURE ²⁰⁸Pb, ²⁰⁹Bi, ^235,238U; calculated radial distributions of total density. Skyrme-Hartree-Fock (SHF) and relativistic mean-field (RMF) formalisms.

doi: 10.1103/PhysRevC.105.044606
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2022RA10      Phys.Rev. C 105, 054613 (2022)

S.Rana, M.Bhuyan, R.Kumar

Systematic study of fusion barrier characteristics within the relativistic mean-field formalism

NUCLEAR STRUCTURE ³¹Al, ⁴⁸Ca, ¹⁵⁴Sm, ²⁵²Cf; calculated total density distribution. Relativistic mean-field calculations.

NUCLEAR REACTIONS ¹⁹⁷Au(³¹Al, X), E=100-10 MeV; ¹⁸¹Ta(³⁹K, X), E=140-180 MeV; ¹⁸¹Ta(⁴⁶K, X), E=140-170 MeV; ²³⁸U(⁶⁴Ni, X), E=250-305 MeV; ²³⁸U(⁴⁸Ca, X), E=180-245 MeV; ¹⁵⁴Sm(⁴⁸Ca, X), E=135-195 MeV; ²⁴⁸Cm(⁴⁸Ca, X), E=190-210 MeV; ²⁴⁸Cm(²⁶Mg, X), E=110-150 MeV; ²⁵⁷Fm(⁴⁰Ca, X), E=200-230 MeV; ²⁴⁸Cf(⁴⁶Ti, X), E=220-250 MeV; ²⁴⁹Cf(⁴⁶Ti, X), E=210-240 MeV; ²⁵⁴Fm(⁴⁸Ca, X), E=190-230 MeV; ²⁴²Cm(⁵⁰Cr, X), E=230-260 MeV; ²⁴⁹Cf(⁵⁰Ti, X), E=210-240 MeV; ²⁵²Cf(⁵⁰Ti, X), E=205-240 MeV; ²⁴⁸Cm(⁵⁴Cr, X), E=220-260 MeV; ²⁴⁴Pu(⁵⁸Fe, X), E=230-270 MeV; ²³⁵U(⁶⁴Ni, X), E=250-280 MeV; ²³⁶U(⁶⁶Ni, X), E=250-280 MeV; ²⁵⁴Cf(⁵⁰Ti, X), E=210-250 MeV;²⁵⁰Cm(⁵⁴Cr, X), E=235-260 MeV; ²⁴⁴Pu(⁶⁰Fe, X), E=240-270 MeV; ²³²Th(⁷²Zn, X), E=260-300 MeV; ²²⁸Ra(⁷⁶Ge, X), E=270-310 MeV; calculated σ(E), total interaction potential, barrier height, barrier position. Relativistic mean-field (RMF) formalism with M3Y, relativistic R3Y and density-dependent R3Y (DDR3Y) nucleon-nucleon potentials. Comparison to available experimental data.

doi: 10.1103/PhysRevC.105.054613
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2022RA32      Eur.Phys.J. A 58, 241 (2022)

S.Rana, R.Kumar, S.K.Patra, M.Bhuyan

Fusion dynamics of astrophysical reactions using different transmission coefficients

NUCLEAR REACTIONS ¹²C, ¹⁶O(¹²C, X), ¹⁶O(¹⁶O, X), E(cm)<12 MeV; calculated fusion σ within l-summed Wong model using the Hill-Wheeler, Ahmed and Kemble transmission coefficients. Comparison with experimental data.

doi: 10.1140/epja/s10050-022-00893-6
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2021RA18      Phys.Rev. C 104, 024619 (2021)

S.Rana, R.Kumar, M.Bhuyan

Fusion cross section of the superheavy Z=120 nuclei within the relativistic mean-field formalism

NUCLEAR STRUCTURE ^40,48Ca, ^46,50Ti, ^50,54Cr, ^58,60Fe, ^64,66Ni, ⁷²Zn, ⁷⁶Ge; ^236,238U, ^236,238U, ^242,248,250Cm, ²⁴⁴Pu, ^{248,249,252,254}Cf, ^254,257Fm, ²³²Th, ²²⁸Ra; calculated proton, neutron, and total radial density distributions, surface diffusion parameters, ground-state quadrupole deformation β₂ parameters for lighter projectiles and heavier targets in production of Z=120 nuclei using relativistic mean-field (RMF) formalism with the NL3* parameter set. Comparison with available experimental data.

NUCLEAR REACTIONS ²⁵⁷Fm(⁴⁰Ca, X), ²⁵⁴Fm(⁴⁸Ca, X), ²⁴⁸Cf(⁴⁶Ti, X), ²⁴⁹Cf(⁴⁶Ti, X), ²⁴⁹Cf(⁵⁰Ti, X), ²⁵²Cf(⁵⁰Ti, X), ²⁴²Cm(⁵⁰Cr, X), ²⁴⁸Cm(⁵⁴Cr, X), ²⁴⁴Pu(⁵⁸Fe, X), ²³⁸U(⁶⁴Ni, X), ²³⁵U(⁶⁴Ni, X), ²³⁶U(⁶⁶Ni, X), ²⁵⁴Cf(⁵⁰Ti, X), ²⁵⁰Cm(⁵⁴Cr, X), ²⁴⁴Pu(⁶⁰Fe, X), ²³²Th(⁷²Zn, X), ²²⁸Ra(⁷⁶Ge, X)²⁹²120/²⁹⁴120/²⁹⁵120/²⁹⁷120/²⁹⁹120/³⁰²120/³⁰⁴120, E(cm)=200-330 MeV; calculated capture and fusion σ(E), barrier distributions for target-projectile combinations forming Z=120 superheavy nuclei. ²⁴⁸Cf(⁴⁸Ti, X), ²⁴⁹Cf(⁴⁶Ti, X), ^249,252Cf(⁵⁰Ti, X), ²⁵⁰Cm(⁵⁴Cr, X); predicted as the most suitable target-projectile combinations for synthesis of Z=120 isotopes. Microscopic nucleon-nucleon calculations using R3Y interaction.

doi: 10.1103/PhysRevC.104.024619
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2020BH02      Phys.Rev. C 101, 044603 (2020); Errata Phys.Rev. C 104, 059901 (2021)

M.Bhuyan, R.Kumar, S.Rana, D.Jain, S.K.Patra, B.V.Carlson

Effect of density and nucleon-nucleon potential on the fusion cross section within the relativistic mean field formalism

NUCLEAR STRUCTURE ²⁶Mg, ³¹Al, ^39,46K, ⁴⁸Ca, ⁶⁴Ni, ¹⁵⁴Sm, ¹⁸¹Ta, ¹⁹⁷Au, ²³⁸U, ²⁴⁸Cm; calculated total radial density distributions, neutron and proton equivalent diffusiveness parameters using relativistic mean field formalism with NL3^* interaction. Comparison with experimental data.

NUCLEAR REACTIONS ¹⁵⁴Sm, ²³⁸U, ²⁴⁸Cm(⁴⁸Ca, X), E(cm)=135-234 MeV; ²³⁸U(⁶⁴Ni, X), E(cm)=245-305 MeV; ²⁴⁸Cm(²⁶Mg, X), E(cm)=105-150 MeV; ¹⁸¹Ta(⁴⁶K, X), (³⁹K, X), E(cm)=140-176 MeV; ¹⁹⁷Au(³¹Al, X), E(cm)=105-160 MeV; calculated σ(E), barrier heights, fusion barrier distributions. Comparison with experimental fusion cross section data. Relativistic mean field formalism using the double-folding procedure, and R3Y and M3Y interactions. Discussion of the role of nucleon-nucleon potential and nucleon densities in fusion cross sections.

doi: 10.1103/PhysRevC.101.044603
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2019VE04      Nucl.Phys. A989, 117 (2019)

D.S.Verma, Kushmakshi, S.Rana

Isospin influence on the decay of compound nuclei formed in ^{78, 82}Kr + ⁴⁰Ca and ^{78, 86}Kr + ^{40, 48}Ca reactions

NUCLEAR REACTIONS ⁴⁰Ca(⁷⁸Kr, x)¹¹⁸Ba, E=5.5 MeV/nucleon;⁴⁰Ca(⁸²Kr, x)¹²²Ba, E=5.5 MeV/nucleon; ^40,48Ca(⁷⁸Kr, x), ¹¹⁸Ba;(⁸⁶Kr, x)¹³⁴Ba, E=10 MeV/nucleon; calculated scattering potential of the decay channel, fragmentation potential for compound systems ^118,122,134Ba for different angular momenta, fragment preformation probability, preformation probability for light projectiles, IMFs and FFs; σ for possible reactions, fragment mass distributions; deduced separately σ values for neutron-rich and neutron-poor systems. Cross sections compared with published data.

doi: 10.1016/j.nuclphysa.2019.06.002
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2012RA17      Pramana 79, 233 (2012)

S.Rana, S.Lahiri, A.M.Jayannavar

Quantum Jarzynski equality with multiple measurement and feedback for isolated system

doi: 10.1007/s12043-012-0304-7
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