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NSR database version of May 8, 2024.

Search: Author = S.Sahadevan

Found 12 matches.

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2012SA16      Nucl.Phys. A882, 49 (2012)

K.P.Santhosh, S.Sahadevan, B.Priyanka, M.S.Unnikrishnan

Systematic study of heavy cluster emission from ^210-226Ra isotopes

RADIOACTIVITY ^{210,212,214,216,218,220,222,224,226}Ra(α), (⁸Be), (¹⁰Be), (¹²C), (¹⁴C), (¹⁶C), (¹⁶O), (¹⁸O), (²⁰O), (²²O); calculated T_1/2 using CPPM (Coulomb plus proximity potential) and Poenaru universal formula. Compared with available data.

doi: 10.1016/j.nuclphysa.2012.04.001
Citations: PlumX Metrics

2011SA10      Nucl.Phys. A850, 34 (2011)

K.P.Santhosh, S.Sahadevan, J.G.Joseph

Alpha decay of even-even nuclei in the region 78 ≤ Z ≤ 102 to the ground state and excited states of daughter nuclei

NUCLEAR STRUCTURE Z=78-102; calculated α-decay T_1/2, branching ratios. Coulomb and proximity potential model for deformed nuclei, comparison with experimental data.

doi: 10.1016/j.nuclphysa.2010.12.002
Citations: PlumX Metrics

2011SA24      J.Phys.(London) G38, 075101 (2011)

K.P.Santhosh, J.G.Joseph, B.Priyanka, S.Sahadevan

Systematic study on the α-decay fine structure of even-odd nuclei in the range 84 ≤ Z ≤ 102

NUCLEAR STRUCTURE Z=84-102; calculated α-decay T_1/2. Coulomb and proximity potential model for deformed nuclei, comparison with experimental data.

doi: 10.1088/0954-3899/38/7/075101
Citations: PlumX Metrics

2011SA40      Phys.Rev. C 84, 024609 (2011)

K.P.Santhosh, B.Priyanka, J.G.Joseph, S.Sahadevan

α decay chains in ^271-294115 superheavy nuclei

RADIOACTIVITY ^{271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294}Mc, ^{267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290}Nh, ^{263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286}Rg, ^{259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282}Mt, ^{255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278}Bh, ^{251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274}Db, ^{247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270}Lr, ^{243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266}Md, ^{239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262}Es, ^{235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258}Bk, ^{231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254}Am, ^{227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250}Np(α), (SF); calculated half-lives, Q_α in the framework of Coulomb and proximity potential model for deformed nuclei (CPPMDN). Comparison with experimental data.

doi: 10.1103/PhysRevC.84.024609
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2010SA09      Nucl.Phys. A832, 220 (2010)

K.P.Santhosh, R.K.Biju, S.Sahadevan

Semi-empirical formula for spontaneous fission half life time

RADIOACTIVITY ²³²Th, ^{228,230,232,234,236,238}U, ^{232,234,236,238,240,242,244}Pu, ^{240,242,244,246,248,250}Cm, ^{240,242,244,246,248,250,252,254}Cf, ^{246,248,250,252,254,256,258,260}Fm, ^{250,252,254,256,258,260,262,264,266}No, ^{254,256,258,260,262,264,266,268}Rf, ^{258,260,262,264,266,268,270,272}Sg, ^{264,266,268,270,272,274,276}Hs, ^{260,262,264,266,268,270,272,274,276,278,280,282,284}Ds, ^{264,266,268,270,272,274,276,278,280,282,284,286,288}Cn, ^{268,270,272,274,276,278,280,282,284,286,288,290,292}Fl, ^{272,274,276,278,280,282,284,286,288,290,292,294,296}Lv, ^{276,278,280,282,284,286,288,290,292,294,296,298,300}Og, ^{274,276,278,280,282,284,286,288,290,292,294,296,298,300,302,304,306,308,310,312,314,316,318,320}120, ^{276,278,280,282,284,286,288,290,292,294,296,298,300,302,304,306,308,310,312,314,316}122(α), (SF); calculated T_1/2 using a Coulomb and Proximity Potential model and semi-empirical formula. Discussed SHE survivability. Comparison with data and systematics.

doi: 10.1016/j.nuclphysa.2009.10.160
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2010SA29      Nucl.Phys. A838, 38 (2010)

K.P.Santhosh, R.K.Biju, S.Sahadevan

Cluster formation probability in the trans-tin and trans-lead nuclei

RADIOACTIVITY ^112,114Ba(¹²C), ^116,118Ce(¹⁶O), ^120,122Nd(²⁰Ne), ^124,126Sm(²⁴Mg), ²²¹Fr, ^{221,222,223,224,225}Ra, ²²⁵Ac, ²²⁶Th(¹⁴C); calculated cluster formation probability and systematics for adjacent systems/clusters. ²²⁶Th(¹⁴C), (¹⁸O), (²⁰O), ²³⁰U(²²Ne), (²⁴Ne), ^232,233,234U(²⁴Ne), (²⁸Mg), ²³⁴U(²⁶Ne), ²³⁶U, ²³⁸Pu(²⁸Mg), (³⁰Mg); calculated cluster formation probability, T_1/2. Coulomb proximity potential model.

doi: 10.1016/j.nuclphysa.2010.03.004
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2010SA36      Phys.Rev. C 82, 064605 (2010)

K.P.Santhosh, J.G.Joseph, S.Sahadevan

α decay of nuclei in the range 67≤Z≤91 from the ground state and isomeric state

RADIOACTIVITY ^{151,152,153,154}Ho, ^153,154,155Tm, ^155,156,157Lu, ¹⁵⁶Hf, ^{157,158,159,160,161}Ta, ¹⁵⁸W, ^{161,162,163,164,165}Re, ^{165,166,167,169,171,174}Ir, ¹⁷²Pt, ^{170,171,173,175,176,177}Au, ^176,177,187Hg, ^{177,179,181,183,185}Tl, ^{179,180,181,183,185,187}Pb, ^{186,187,188,189,190,191,192,193,194,195,196}Bi, ^{187,188,192,193,195,197,199,201}Po, ^{191,192,193,194,195,197,198,200,202,212,214}At, ^{195,197,199,201,203}Rn, ^{201,202,203,204,206}Fr, ^{201,203,205,207}Ra, ^206,208,216Ac, ²¹⁶Th, ²¹⁷Pa(α), ²⁴⁵Md, ²⁵⁷Db, ²⁶³Sg; calculated half-lives for favored and unfavored transitions for ground states and isomers using Coulomb and proximity potential model for deformed nuclei (CPPMDN). Comparison with experimental data.

doi: 10.1103/PhysRevC.82.064605
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2010SA39      Nucl.Phys. A847, 42 (2010)

K.P.Santhosh, S.Sahadevan

Systematic decay studies of even-even ^132-138Nd, ^144-158Gd, ^176-196Hg and ^192-198Pb isotopes

RADIOACTIVITY ^{132,134,136,138}Nd, ^{144,146,148,150,152,154,156,158}Gd, ^{176,178,180,182,184,186,188,190,192,194,196}Hg, ^{192,194,196,198}Pb(α); analyzed T_1/2 using Coulomb and Proximity Potential Model. ^{132,134,136,138}Nd(⁸Be), (¹²C), (¹⁴C), (¹⁶O), (¹⁸O), (²⁰O), (²⁰Ne), (²²Ne), (²⁴Ne), (²⁴Mg), (²⁶Mg), (²⁸Mg), (²⁸Si), (³⁰Si), (³²Si), (³⁴Si), (³⁴S), (³⁶S); ^{144,146,148,150,152,154,156,158}Gd(⁸Be), (¹²C), (¹⁴C), (¹⁶C), (¹⁶O), (¹⁸O), (²²O), (²⁶O), (²²Ne), (²⁴Ne), (²⁶Ne), (²⁴Mg), (²⁶Mg), (²⁸Mg), (³⁰Mg), (³⁰Si), (³²Si), (³⁴Si), (³⁶Si), (³⁴S), (³⁶S); ^{176,178,180,182,184,186,188,190,192,194,196}Hg(⁸Be), (¹²C), (¹⁴C), (¹⁶O), (¹⁸O), (²⁰O), (²⁰Ne), (²²Ne), (²⁴Ne), (²⁴Mg), (²⁶Mg), (²⁸Mg), (³⁰Mg), (²⁸Si), (³⁰Si), (³²Si), (³⁴Si), (³⁴S), (³⁶S); ^{192,194,196,198}Pb(⁸Be), (¹²C), (¹⁴C), (¹⁶O), (¹⁸O), (²⁰O), (²²Ne), (²⁴Ne), (²⁶Mg), (²⁸Mg), (³⁰Mg), (³⁰Si), (³²Si), (³⁴Si), (³⁶S); calculated cluster decay T_1/2 systematics and effect of deformation using Coulomb and Proximity Potential Model.

doi: 10.1016/j.nuclphysa.2010.07.001
Citations: PlumX Metrics

2009SA25      Nucl.Phys. A825, 159 (2009)

K.P.Santhosh, S.Sahadevan, R.K.Biju

Alpha radioactivity in heavy and super heavy elements

RADIOACTIVITY ^{245,246,247,248,249,250,251,252,253,254,255,256,257,260,262,264,266,268,270,272,276,278}Fm, ^{251,252,253,254,255,256,257,259,260,262,264,266,268,270,272,274,276,278,282,284,286,288}No, ^{256,261,262,264,266,268,270,272,274,276,278,280,282,284,286,288,290,292,294}Rf, ^{260,262,263,264,265,266,268,270,271,272,274,276,278,280,282,284,286,288,290,292,294,296}Sg, ^{264,265,266,268,270,272,274,275,276,278,280,282,284,286,288,290,292,294,296,298}Hs, ^{264,266,268,269,270,272,274,276,278,279,280,282,284,286,288,290,292,294,296,298,300}Ds, ^{268,270,272,274,276,278,280,282,283,284,285,286,288,290,292,294,296,298,300,302,304}Cn, ^{270,272,274,276,278,280,282,284,286,287,288,289,290,292,294,296,298,300,302,304,306}Fl, ^{276,278,280,282,284,286,288,290,291,292,293,294,296,298,300,302,304,306,308}Lv, ^{280,282,284,286,288,290,292,294,296,298,300,302,304,306,308,310}Og, ^{288,290,292,294,296,298,300,302,304,306,308,310,312}120(α); calculated α-decay Q-values, half-lives using a Coulomb and Proximity Potential model. Comparison with systematics and data.

doi: 10.1016/j.nuclphysa.2009.04.012
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2009SA33      J.Phys.(London) G36, 115101 (2009)

K.P.Santhosh, R.K.Biju, S.Sahadevan

The systematic study of spontaneous fission versus alpha decay of superheavy nuclei

NUCLEAR STRUCTURE Z=100-122; analyzed spontaneous fission half-lives and fissionability parameters, neutron excess; calculated α-decay T_1/2. Comparison with empirical formula and experimental data.

doi: 10.1088/0954-3899/36/11/115101
Citations: PlumX Metrics

2009SA45      Pramana 73, 1059 (2009)

K.P.Santhosh, R.K.Biju, S.Sahadevan

Stability of ^244-260Fm isotopes against alpha and cluster radioactivity

NUCLEAR STRUCTURE ^{244,246,248,250,252,254,256,258,260}Fm; calculated α-decay T_1/2 and impact of nuclear deformation of parents and fragments on half-lives; deduced relative stability against light cluster emission. Comparison with experimental data.

doi: 10.1007/s12043-009-0166-9
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2008BI10      Pramana 70, 617 (2008)

R.K.Biju, S.Sahadevan, K.P.Santhosh, A.Joseph

Cold valleys in the radioactive decay of ^248-254Cf isotopes

NUCLEAR STRUCTURE ^{248,249,250,251,252,253,254}Cf; calculated α and cluster decay Q-values, penetrabilities, decay constants and branching ratios.

doi: 10.1007/s12043-008-0023-2
Citations: PlumX Metrics