NSR Query Results

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NSR database version of May 10, 2024.

Search: Author = I.Sukumaran

Found 9 matches.

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2019SA01      Pramana 92, 6 (2019)

K.P.Santhosh, I.Sukumaran

Decay of Z = 82 - 102 heavy nuclei via emission of one-proton and two-proton halo nuclei

RADIOACTIVITY ¹⁷⁹Rn(⁸B), ¹⁷⁹Rn(¹²N), ^{169,170,171,172,173,174,175,176,177,178,179,180,181}Po, ^{179,180,181,182,183,184,185}Rn, ^{184,185,186,187,188,189,190}Ra, ^{190,191,192,193,194,195,196}Th, ^{195,196,197,198,199,200,201,202}U, ^{200,201,202,203,204,205,206,207}Pu, ^{206,207,208,209,210,211,212}Cm, ^{211,212,213,214,215,216,217,218,219}Cf, ^{217,218,219,220,221,222,223}Fm, ^{222,223,224,225,226,227,228,229,230,231,232,233,234,235}No(¹³N), ^174,175,176Po, ^179,180,181Rn, ^184,185Ra, ^190,191Th, ²¹⁷Fm, ²²²No(¹⁷F), ^174,175,176Po, ^179,180,181Rn, ^184,185,186Ra, ¹⁹⁰Th, ¹⁹⁵U(¹⁸Ne); calculated Q-values, penetrability, decay constant, T_1/2 for emitted halo nuclei.

doi: 10.1007/s12043-018-1672-4
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2018SA32      Eur.Phys.J. A 54, 102 (2018)

K.P.Santhosh, I.Sukumaran

Predictions of proton emissions from the isotopes of nuclei with Z = 100-136 using the Coulomb and proximity potential model for deformed nuclei

NUCLEAR STRUCTURE Z=100-136; calculated proton radioactivity T_1/2 vs mass excess using CPPM (Coulomb and Proximity Potential Model) and using CPPMDN (Coulomb and Proximity Potential Model for Deformed Nuclei); deduced T_1/2 vs Q-value. Compared with Geiger-Nutall law and with simple formulas also yielding Geiger-Nutall-like dependences.

doi: 10.1140/epja/i2018-12536-0
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2017SA01      Can.J.Phys. 95, 31 (2017)

K.P.Santhosh, I.Sukumaran

Studies on heavy particle radioactivity from superheavy nuclei leading to doubly magic ³⁰⁴120 daughter nuclei

RADIOACTIVITY ²⁷¹Sg, ^270,272Bh, ²⁷⁵Hs, ^274,275,276Mt, ²⁷⁹Ds, ^278,279,280Rg, ^283,285Cn, ^282,283,284Nh, ^{286,287,288,289}Fl, ^287,288Mc, ^{290,291,292,293}Lv, ²⁹⁴Og(α); calculated T_1/2. Coulomb and proximity potential model, comparison with experimental data.

doi: 10.1139/cjp-2016-0465
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2017SA06      Int.J.Mod.Phys. E26, 1750003 (2017)

K.P.Santhosh, I.Sukumaran

Decay of heavy particles from Z=125 superheavy nuclei in the region A=295-325 using different versions of proximity potential

RADIOACTIVITY ^{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}125(α), (⁸Be), (³⁰Mg), (³²Si); calculated T_1/2. Comparison with available data.

doi: 10.1142/S0218301317500033
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2017SA39      Eur.Phys.J. A 53, 136 (2017)

K.P.Santhosh, I.Sukumaran

Studies on cluster decay from trans-lead nuclei using different versions of nuclear potentials

NUCLEAR STRUCTURE ^{216,217,218,219,220,221,222,223,224,225,226}Fr, ^{216,217,218,219,220,221,222,223,224,225,226,227,228,229}Ra, ^{206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229}Ac, ^{217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233}Th, ^{227,228,229,230,231,232,233,234}Pa, ^{220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238}U, ^{232,233,234,235,236,237,238,239}Np, ^{228,229,230,231,232,233,234,235,236,237,238,239,240,241,242}Pu, ^{231,232,233,234,235,236,237,238,239,240,241,242,243,244}Am, ^{233,234,235,236,237,238,239,240,241,242,243,244,245}Cm; calculated ¹⁴C, ¹⁵N, ^18,20,22O, ²³F, ^22,24,25,26Ne, ^28,29,30Mg, ^32,34Si cluster radioactivity T_1/2 using 12 different potentials; deduced universal curve for T_1/2 vs cluster penetrability for given cluster emission. T_1/2 compared with data (available only for very few parent nuclei).

doi: 10.1140/epja/i2017-12309-3
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2017SA54      Phys.Rev. C 96, 034619 (2017)

K.P.Santhosh, I.Sukumaran

Description of proton radioactivity using the Coulomb and proximity potential model for deformed nuclei

RADIOACTIVITY ⁵⁸Ge, ⁸⁹Rh, ¹⁰⁵Sb, ^108,109I, ^112,113Cs, ¹¹⁷La, ¹²¹Pr, ^130,131Eu, ¹³⁵Tb, ^140,141,141mHo, ^{144,145,146,146m,147,147m}Tm, ^{150,150m,151,151m}Lu, ^{155,156,156m,157,159}Ta, ^{159,159m,160,161,161m}Re, ^{164,165m,166,166m,167,167m,168,169}Ir, ^{170,170m,171,171m,173}Au, ^{176,177,177m,179,180}Tl, ^184,185m,186Bi, ¹⁹³At(p); calculated half-lives, and compared with other theoretical models (CPPM, Gamow and Hatsukawa), and with available experimental data. Geiger-Nuttall plots for different cases of proton radioactivity using theoretical half-lives and evaluated Q values. Coulomb and proximity potential model for deformed nuclei (CPPMDN).

doi: 10.1103/PhysRevC.96.034619
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2017SA76      Eur.Phys.J. A 53, 246 (2017)

K.P.Santhosh, I.Sukumaran

Alpha decay studies on Po isotopes using different versions of nuclear potentials

RADIOACTIVITY ^{186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,211,212,213,214}Po(α); calculated T_1/2 using 18 different potentials, T_1/2 vs daughter nucleus neutron number. Compared with available data and some other calculations.

doi: 10.1140/epja/i2017-12446-7
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2016SA61      Braz.J.Phys. 46, 754 (2016)

K.P.Santhosh, I.Sukumaran

Probable Heavy Particle Decays from ^306-339128 Superheavy Nuclei

RADIOACTIVITY ^{306,307,308,309,310,311,312,313,314,315,316,317,318,319,320,321,322,323,324,325,326,327,328,329,330,331,332,333,334,335,336,337,338,339}128(α), (⁸Be), (¹⁰Be), (¹²C), (¹⁴C), (¹⁶O), (¹⁸O), (²⁰O), (²²O), (²⁰Ne), (²²Ne), (²⁴Ne), (²⁶Ne), (²⁴Mg), (²⁶Mg), (²⁸Mg), (³⁰Mg), (³²Si), (³³Si), (³⁴Si), (¹⁵N), (²³F), (²⁵Ne), (²⁹Mg); calculated T_1/2. Comparison with available data.

doi: 10.1007/s13538-016-0461-0
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2015SA08      Nucl.Phys. A935, 28 (2015)

K.P.Santhosh, I.Sukumaran, B.Priyanka

Theoretical studies on the alpha decay of ^178-220Pb isotopes

RADIOACTIVITY ^{178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220}Pb(α); calculated T_1/2 using CPPM (Coulomb plus proximity potential model) with and without deformation dependent frequency. Compared with Geiger-Nutall law and with available data.

doi: 10.1016/j.nuclphysa.2014.12.008
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