NSR Query Results

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NSR database version of May 10, 2024.

Search: Author = H.B.Ramalingam

Found 7 matches.

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2022SR01      Int.J.Mod.Phys. E31, 2250030 (2022)

G.R.Sridhara, H.C.Manjunatha, R.Munirathnam, N.Sowmya, H.B.Ramalingam

Macroscopic versus microscopic models in predicting α-decay half-lives of actinide nuclei

RADIOACTIVITY ^{215,216,217,218,219,220,221,222,223,224,225}Ac, ^{212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232}Th, ^{211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231}Pa, ^{222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238}U, ^{219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237}Np, ^{236,237,238,239,240,241,242,243,244}Pu, ^{236,237,238,239,240,241,242,243}Am, ^{240,241,242,243,244,245,246,247,248}Cm, ^{233,234,235,236,237,238,239,240,241,242,243,244,245,246,247}Bk, ^{240,241,242,243,244,245,246,247,248,249,250,251,252}Cf, ^{240,241,242,243,244,245,246,247,248,249,250,251,252,253,254}Es, ^{243,244,245,246,247,248,249,250,251,252,253,254,255,256,257}Fm, ^{244,245,246,247,248,249,250,251,252,253,254,255,256,257,258}Md, ^{251,252,253,254,255,256,257}No, ^{253,254,255,256,257}Lr(α); calculated T_1/2. Comparison with available data.

doi: 10.1142/S0218301322500306
Citations: PlumX Metrics

2021MA20      Int.J.Mod.Phys. E30, 2150013 (2021)

H.C.Manjunatha, G.R.Sridhar, N.Sowmya, P.S.Damodara Gupta, H.B.Ramalingam

A systematic study of alpha decay in actinide nuclei using modified generalized liquid drop model

RADIOACTIVITY ²¹⁰Ac, ²¹⁴Ac, ²²⁰Ac, ^{223,224,225,226}Ac, ^209,211Th, ^215,217Th, ²¹⁸Th, ^223,225Th, ^226,227Th, ²²⁹Th, ²³²Th, ^224,225Pa, ^228,229,230Pa, ^217,219U, ^223,225,227U, ²²⁸U, ²³¹U, ^234,235U, ^227,229,231Np, ^235,236,237Np, ^229,230Pu, ²³³Pu, ^236,237Pu, ^239,241Pu, ²⁴²Pu, ²³⁵Am, ^239,240,241Am, ²⁴³Am, ^239,240,241Cm, ^243,245Cm, ^246,247Cm, ^243,244,245Bk, ^247,249Bk, ²³⁷Cf, ²⁴⁴Cf, ^247,249Cf, ^250,251Cf, ²⁵³Cf, ^245,246Es, ^252,254Es, ²⁵⁵Es, ^243,245Fm, ²⁴⁶Fm, ^247,249,251Fm, ^252,253Fm, ^255,257Fm, ^247,249,251Md, ^{255,256,257,258}Md, ^252,253No, ^255,257,259No, ^255,257,259Lr(α); calculated T_1/2. Comparison with experimental data.

doi: 10.1142/S0218301321500130
Citations: PlumX Metrics

2020MA24      Z.Naturforsch. 75, 501 (2020)

H.C.Manjunatha, G.R.Sridhar, P.S.Damodara Gupta, H.B.Ramalingam, V.H.Doddamani

Pocket formula for alpha decay energies and half-lives of actinide nuclei

NUCLEAR STRUCTURE Z>88; analyzed available data; deduced formula for α-decay T_1/2.

doi: 10.1515/zna-2020-0023
Citations: PlumX Metrics

2019MA01      Nucl.Phys. A981, 17 (2019)

H.C.Manjunatha, K.N.Sridhar, H.B.Ramalingam

Synthesis of superheavy elements using ^{50, 51}V-induced fusion reactions

NUCLEAR STRUCTURE ¹⁶⁸Ta; calculated proton, neutron sp levels near Fermi surface, energy, J, π, occupation probability of orbitals, kinematic high spin rotational bands, band crossings, moment of inertia, major shells using PNC-CSM (Particle Number Conserving) method - Cranking Shell Model. High-spin rotational bands compared to data.

doi: 10.1016/j.nuclphysa.2018.10.084
Citations: PlumX Metrics

2019SR01      Nucl.Phys. A983, 195 (2019)

K.N.Sridhar, H.C.Manjunatha, H.B.Ramalingam

Studies on the synthesis superheavy element Z = 120

RADIOACTIVITY ^{290,291,292,293,294,295,296,297,298,299,300,301,302,303,304}120 (SF), (α); calculated T_1/2 of both α-decay and spontaneous fission using Coulomb potential plus proximity potential; calculated decay chains and maximum evaporation residue σ for different projectile-target combinations, proper E^* and different neutron evaporation channels to achieve maximal σ; deduced superheavy σ, most probable projectile-target combination to synthetize superheavy Z=120 is Ti+Cf. Halflives and σ compared to available data.

doi: 10.1016/j.nuclphysa.2018.11.032
Citations: PlumX Metrics

2019SR04      Pramana 93, 81 (2019)

G.R.Sridhara, H.C.Manjunatha, K.N.Sridhar, H.B.Ramalingam

Systematic study of the α decay properties of actinides

RADIOACTIVITY ^{211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238}Ac, ^{214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236}Th, ^{217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240}Pa, ^{219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245}U, ^{221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245}Np, ^{228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245}Pu, ^{228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250}Am, ^{233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251}Cm, ²⁵⁵Cm, ^{234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252}Bk, ^{238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255}Cf, ^{241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258}Es, ^{243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258}Fm, ^{246,247,248,249,250,251,252,253,254,255,256,257,258,259}Md, ^{246,247,248,249,250,251,252,253,254,255,256,257,258,259,260}No, ^{251,252,253,254,255,256,257,258,259,260,261,262}Lr(α); calculated T_1/2. Comparison with available data.

RADIOACTIVITY ²¹⁰Ac, ^{200,201,202,203,204,205,206,207,208,209,210,211,212,213}Th, ^{200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216}Pa, ^{210,211,212,213,214,215,216,217,218}U, ^{215,216,217,218,219,220}Np, ^{220,221,222,223,224,225,226,227}Pu, ^226,227Am, ^252,253,254Cm, ^{230,231,232,233}Bk, ^253,254,255Bk, ^{230,231,232,233,234,235,236,237}Cf, ^{235,236,237,238,239,240}Es, ^259,260Es, ^{235,236,237,238,239,240,241,242}Fm, ^259,260Fm, ^{240,241,242,243,244,245}Md, ²⁶⁰Md, ²⁴⁵No, ^{261,262,263,264,265}No, ^{245,246,247,248,249,250}Lr, ^263,264,265Lr(SF); calculated T_1/2. Comparison with available data.

doi: 10.1007/s12043-019-1845-9
Citations: PlumX Metrics

2018SR05      Phys.Rev. C 98, 064605 (2018)

K.N.Sridhar, H.C.Manjunatha, H.B.Ramalingam

Search for possible fusion reactions to synthesize the superheavy element Z=121

RADIOACTIVITY ^{299,300,301,302,303,304,305}121, ^{295,296,297,298,299,300}119, ^{291,292,293,294,295,296}Ts, ^287,288,289Mc(α), (SF); calculated half-lives for different decay modes using Wong model for SF decay. Comparison with several other theoretical calculations.

NUCLEAR STRUCTURE ^{280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313,314,315,316,317,318,319,320,321,322,323,324,325,326,327,328,329,330}121; calculated S(n), S(p), S(2n), S(2p), Q(β).

NUCLEAR REACTIONS ^249,250,251Cf(⁵⁰V, 2n), ^250,252Cf(⁵¹V, 2n), ²⁴⁴Pu(⁶⁰Co, 2n)³⁰²121, ²⁵⁰Cm(⁵⁵Mn, 2n)³⁰³121, E^*=20-50 MeV; calculated evaporation σ(E). ^{299,300,301,302,303,304,305}121; calculated compound nucleus probability, and survival probability at 35 MeV excitation energy and 2n channel reaction as a function of projectile mass number. ^{249,250,251,252,253,254}Cf(⁴⁸V, xn), (⁴⁹V, xn), (⁵⁰V, xn), (⁵¹V, xn), E^*=20, 25, 30, 35 MeV; ^247,248,249Bk(⁵⁰Cr, xn), (⁵¹Cr, xn), (⁵²Cr, xn), (⁵³Cr, xn), (⁵⁴Cr, xn), E^*=20, 25, 30, 35 MeV; ^{244,245,246,247,248,250}Cm(⁵²Mn, xn), (⁵³Mn, xn), (⁵⁴Mn, xn), (⁵⁵Mn, xn), E^*=20, 25, 30, 35 MeV; ^241,242,243Am(⁵⁶Fe, xn), (⁵⁷Fe, xn), (⁵⁸Fe, xn), (⁶⁰Fe, xn), E^*=20, 25, 30, 35 MeV; ^{239,240,241,242,244}Pu(⁵⁹Co, xn), (⁶⁰Co, xn), E^*=15-35 MeV, x=1-6. calculated evaporation residue σ(E) for the production of ^{300,301,302,303,304,305}121 nuclei, fusion barrier heights.

doi: 10.1103/PhysRevC.98.064605
Citations: PlumX Metrics