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NSR database version of May 8, 2024.

Search: Author = R.Razavi

Found 11 matches.

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2022DE14      Chin.Phys.C 46, 044104 (2022)

V.Dehghani, S.A.Alavi, R.Razavi, A.Soylu, F.Koyuncu

Cluster decay half-lives using asymmetry dependent densities

RADIOACTIVITY ²²¹Fr, ^{221,222,223,224}Ra, ²²⁶Ra, ²²⁶Th(¹⁴C), ²²⁶Th(¹⁸O), ²²⁸Th(²⁰O), ²³⁰Th(²⁴Ne), ²³²Th(²⁶Ne), ²³¹Pa(²³F), (²⁴Ne), ²³⁰U(²²Ne), (²⁴Ne), ²³²U(²⁴Ne), (²⁸Mg), ²³³U(²⁴Ne), (²⁵Ne), (²⁸Mg), ²³⁴U(²⁴Ne), (²⁶Ne), (²⁸Mg), ²³⁵U(²⁴Ne), (²⁵Ne), (²⁸Mg), ²³⁶U(²⁴Ne), (²⁶Ne), (³⁰Mg), ²³⁷Np(³⁰Mg), ²³⁶Pu(²⁸Mg), ²³⁸Pu(²⁸Mg), (³⁰Mg), (³²Si), ²⁴⁰Pu, ²⁴¹Am(³⁴Si); calculated T_1/2. Comparison with available data.

doi: 10.1088/1674-1137/ac4035
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2021NO07      Can.J.Phys. 99, 466 (2021)

O.Nouri, R.Razavi, A.Rahmatinejad, S.Mohammadi

Ratios of negative-to-positive parity level densities in Mo isotopes

NUCLEAR STRUCTURE ^94,96,98Mo; calculated ratios of negative-to-positive parity level densities using a microscopic formalism based on the Bardeen-Cooper-Schrieffer (BCS) model.

doi: 10.1139/cjp-2020-0369
Citations: PlumX Metrics

2018RA10      Nucl.Phys. A976, 61 (2018)

R.Razavi, A.Rashed Mohassel, A.Rahmatinejad, A.Jabarpour

Systematic of critical temperature of nuclear pairing transition

NUCLEAR STRUCTURE A=2-253; calculated critical temperature of nuclear pairing transitions for 440 nuclei using microscopic model; compiled gs pairing energy gap; deduced pairing energy formula, parameters. Compared to data.

doi: 10.1016/j.nuclphysa.2018.05.001
Citations: PlumX Metrics

2016RA15      Int.J.Mod.Phys. E25, 1650030 (2016)

A.Rahmatinejad, T.Kakavand, R.Razavi

Breaking of Cooper pairs in ¹⁰⁸Pd

NUCLEAR STRUCTURE ¹⁰⁸Pd; calculated level density, entropy, spin cutoff parameter ratio within the canonical ensemble framework and the BCS model.

doi: 10.1142/S0218301316500300
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2016RA22      Int.J.Mod.Phys. E25, 1650050 (2016)

A.Rahmatinejad, R.Razavi, T.Kakavand

Studying temperature dependence of pairing gap parameter in a nucleus as a small superconducting system

NUCLEAR STRUCTURE ⁴⁵Ti; calculated temperature dependence of proton pairing gap parameter and heat capacity, excitation energy and entropy as a function of temperature. Bardeen-Cooper-Schrieffer (BCS) theory.

doi: 10.1142/S0218301316500506
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2015RA08      Nucl.Phys. A939, 46 (2015)

A.Rahmatinejad, R.Razavi, T.Kakavand

Thermal quantities of ⁴⁶Ti

NUCLEAR STRUCTURE ⁴⁶Ti; calculated neutron gap vs temperature, heat vs temperature, temperature vr E^*, entropy vs temperature using canonical and microcanonical ensembles.

doi: 10.1016/j.nuclphysa.2015.03.010
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2015RA13      Nucl.Phys. A941, 145 (2015)

A.Rahmatinejad, R.Razavi, T.Kakavand

Role of neutron and proton system in spin cut off parameter and entropy of ^{89, 90}Y

NUCLEAR STRUCTURE ^89,90Y; calculated level density, pairing energy, entropy vs temperature, spin cut-off vs temperature for neutron and proton system using BCS model. Compared with available data.

doi: 10.1016/j.nuclphysa.2015.06.013
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2015RA19      Int.J.Mod.Phys. E24, 1550090 (2015)

R.Razavi, A.Rashed Mohassel, S.Mohammadi

Excited quasiparticles and entropy in ^{161, 162}Dy

NUCLEAR STRUCTURE ^161,162Dy; calculated level densities and entropy. BCS Hamiltonian with inclusion of interacting fermions within the Nilsson level scheme.

doi: 10.1142/S0218301315500901
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2014RA21      Nucl.Phys. A930, 57 (2014)

R.Razavi, A.N.Behkami, V.Dehghani

Pairing phase transition and thermodynamical quantities in ^{148, 149}Sm

doi: 10.1016/j.nuclphysa.2014.07.016
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2013RA18      Phys.Rev. C 88, 014316 (2013)

R.Razavi

Role of neutrons and protons in entropy, spin cut off parameters, and moments of inertia

NUCLEAR STRUCTURE ^{116,117,118,119,121,122}Sn, ^162,163Dy; calculated nuclear level densities, spin cut off parameters, entropies, moment of inertia ratios using superconducting theory including the nuclear pairing interaction. Comparison with experimental data on level densities by the Oslo group.

doi: 10.1103/PhysRevC.88.014316
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2012RA28      Phys.Rev. C 86, 047303 (2012)

R.Razavi, A.N.Behkami, S.Mohammadi, M.Gholami

Ratio of neutron and proton entropy excess in ¹²¹Sn compared to ¹²²Sn

NUCLEAR STRUCTURE ^121,122Sn; calculated level density, entropy, and entropy excess ratio versus nuclear temperature. Bardeen-Cooper-Schrieffer (BCS) theory including nuclear pairing interaction based on the modified harmonic oscillator according to Nilsson potential. Even-odd systems. Comparison with experimental data.

doi: 10.1103/PhysRevC.86.047303
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