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NSR database version of May 8, 2024.

Search: Author = B.Priyanka

Found 25 matches.

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2016SA15      Pramana 86, 819 (2016)

K.P.Santhosh, P.V.Subha, B.Priyanka

Cluster decay of ^112-122Ba isotopes from ground state and as an excited compound system

RADIOACTIVITY ^{112,114,116,118,120,122}Ba(α), (⁸Be), (¹²C), (¹⁶O), (²⁰Ne), (²⁴Mg), (²⁸Si), (³²S), (³⁶Ar), (⁴⁰Ca); calculated Q-values, penetrability parameters, T_1/2. Comparison with available data.

doi: 10.1007/s12043-015-1084-7
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2016SA18      Nucl.Phys. A951, 116 (2016)

K.P.Santhosh, A.Augustine, C.Nithya, B.Priyanka

Predictions on the alpha decay half lives of superheavy nuclei with Z = 113 in the range 255 ≤ A ≤ 314

NUCLEAR STRUCTURE Z=113; calculated α-decay T_1/2 for 255≤A≤314 using CPPMDN (Coulomb and Proximity Potential Model for Deformed Nuclei) and also compared with more simple calculations (CPPM, VSS, Univ and Royer) and also with published results for spontaneous fission; deduced fission mode for individual isotopes of Z=113. Calculated also 4α and 6α decay chains. Compared to available data.

doi: 10.1016/j.nuclphysa.2016.03.041
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2016SA28      Eur.Phys.J. A 52, 125 (2016)

K.P.Santhosh, P.V.Subha, B.Priyanka

Decay of the excited compound system ⁴⁸Cr^* formed through ²⁴Mg + ²⁴Mg, ³⁶Ar + ¹²C and ²⁰Ne + ²⁸Si reactions

NUCLEAR REACTIONS ¹²C(³⁶Ar, x), E(cm)=25, 30, 35, 40, 47, 55, 60, 65, 70 MeV;²⁴Mg(²⁴Mg, x), E(cm)=26.31, 28.57, 30.3, 32.26, 35.71, 40, 44.4, 50, 55, 66.6, 70 MeV;²⁸Si(²⁰Ne, x), E(cm)=35, 40, 50, 55, 60, 65, 70 MeV; calculated total σ, IMF (InterMediate Fragment) σ, light fragment σ, for decays of the same composite system ⁴⁸Cr^*. Compared with available data.

doi: 10.1140/epja/i2016-16125-y
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2016SA32      Nucl.Phys. A955, 156 (2016)

K.P.Santhosh, B.Priyanka, C.Nithya

Feasibility of observing the α decay chains from isotopes of SHN with Z = 128, Z = 126, Z = 124 and Z = 122

RADIOACTIVITY ^{298,299,300,301,302,303,304,305,306,307,309,310,311,312,313,314,315,316,317,318}122, ^{305,306,307,308,313,314,315,316,317,318,319,320,321,322,323}124, ^{317,318,319,320,323,324,325,326,327,328,329,330,331}126, ^{321,322,323,324,328,329,330,331,332,333}128(SF), (α); calculated T_1/2 of superheavy nuclei α-decay and fission (and also for their daughters Hs, Ds, Cn, Fe, Lv, Z=118) using CPPM (Coulomb and Proximity Potential Model), CPPMDN (CPPM for Deformed Nuclei) and VSS, UNIV and Royer formulae.

doi: 10.1016/j.nuclphysa.2016.06.010
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2015SA05      Int.J.Mod.Phys. E24, 1550001 (2015)

K.P.Santhosh, S.Krishnan, B.Priyanka

Isotopic yield in alpha accompanied ternary fission of ²⁵²Cf

RADIOACTIVITY ²⁵²Cf(SF); ¹¹⁶Pd, ⁴He, ¹³²Sn. calculated fragmentation potential for α-particle in ternary fission, driving potential, fragment yields. Unified ternary fission model, comparison with experimental data.

doi: 10.1142/S0218301315500019
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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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2015SA15      Phys.Rev. C 91, 044603 (2015)

K.P.Santhosh, S.Krishnan, B.Priyanka

α-accompanied cold ternary fission of ^238-244Pu isotopes in equatorial and collinear configuration

RADIOACTIVITY ^{238,240,242,244}Pu(SF); calculated driving potential, fragment yields with α as light charged particle (LCP) accompanying ternary fission, emission probability of an α particle, α spectroscopic factor, kinetic energy of α particle emitted in ternary fission ⁹⁸Sr+¹³⁶Xe, ¹⁰⁰Zr+¹³⁴Te, ¹⁰²Mo+¹³²Sn, ¹⁰⁴Mo+¹³⁰Sn, ¹⁰⁶Mo+¹²⁸Sn, ¹⁰⁸Mo+¹²⁶Sn, ¹¹⁰Ru+¹²⁴Cd, ¹¹²Ru+¹²²Cd, ¹¹⁴Ru+¹²⁰Cd, ¹¹⁶Pd+¹¹⁸Pd channels for ²³⁸Pu, ¹⁰⁰Zr+¹³⁶Te, ¹⁰²Zr+¹³⁴Te, ¹⁰⁴Mo+¹³²Sn, ¹⁰⁶Mo+¹³⁰Sn, ¹⁰⁸Mo+¹²⁸Sn, ¹¹⁰Ru+¹²⁶Cd, ¹¹²Ru+¹²⁴Cd, ¹¹⁴Ru+¹²²Cd, ¹¹⁶Pd+¹²⁰Pd, ¹¹⁸Pd+¹¹⁸Pd channels for ²⁴⁰Pu, ¹⁰⁰Sr+¹³⁸Xe, ¹⁰²Zr+¹³⁶Te, ¹⁰⁴Zr+¹³⁴Te, ¹⁰⁶Mo+¹³²Sn, ¹⁰⁸Mo+¹³⁰Sn, ¹¹⁰Mo+¹²⁸Sn, ¹¹²Ru+¹²⁶Cd, ¹¹⁴Ru+¹²⁴Cd, ¹¹⁶Ru+¹²²Cd, ¹¹⁸Pd+¹²⁰Pd channels for ²⁴²Pu, ¹⁰²Zr+¹³⁸Te, ¹⁰⁴Zr+¹³⁶Te, ¹⁰⁶Zr+¹³⁴Te, ¹⁰⁸Mo+¹³²Sn, ¹¹⁰Mo+¹³⁰Sn, ¹¹²Ru+¹²⁸Cd, ¹¹⁴Ru+¹²⁶Cd, ¹¹⁶Ru+¹²⁴Cd, ¹¹⁸Pd+¹²²Pd, ¹²⁰Pd+¹²⁰Pd channels for ²⁴⁴Pu. Role of ground-state deformation in fission yields. Unified ternary fission model (UTFM) with α particle emission and fragments in equatorial and collinear configuration. Comparison with available experimental data.

doi: 10.1103/PhysRevC.91.044603
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2015SA20      Nucl.Phys. A940, 21 (2015)

K.P.Santhosh, B.Priyanka

The competition between alpha decay and spontaneous fission in odd-even and odd-odd nuclei in the range 99≤Z≤129

RADIOACTIVITY Z=99, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 127, 129(SF), (α), (p); calculated T_1/2 for odd-even and odd-odd isotopes using CPPMDN (Coulomb and proximity potential model for deformed nuclei).

doi: 10.1016/j.nuclphysa.2015.03.016
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2014SA25      Eur.Phys.J. A 50, 66 (2014)

K.P.Santhosh, S.Krishnan, B.Priyanka

Light charged particle accompanied ternary fission of ²⁴²Cm using the Coulomb and proximity potential

RADIOACTIVITY ²⁴²Cm(SF); calculated ⁴He, ¹⁰Be, ¹⁴C accompanied ternary fission Q, yields using Coulomb and proximity potential with the fragments in equatorial configuration.

doi: 10.1140/epja/i2014-14066-1
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2014SA37      Phys.Rev. C 89, 064604 (2014)

K.P.Santhosh, B.Priyanka

α decay chains from Z=118 superheavy nuclei in the range 27≤ A ≤ 310

RADIOACTIVITY ^{271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310}Og(α), (SF); calculated α- and SF-decay half-lives of ²⁷¹Og to ³¹⁰Og isotopes and their decay products. ²⁶⁹Hs, ²⁷³Ds, ²⁷⁷Cn, ²⁸¹Fl, ²⁸⁵Lv, ²⁸⁹Og, ²⁶⁶Sg, ²⁷⁰Hs, ²⁷⁴Ds, ²⁷⁸Cn, ²⁸²Fl, ²⁸⁶Lv, ²⁹⁰Og, ²⁶⁷Sg, ²⁷¹Hs, ²⁷⁵Ds, ²⁷⁹Cn, ²⁸³Fl, ²⁸⁷Lv, ²⁹¹Og, ²⁶⁸Sg, ²⁷²Hs, ²⁷⁶Ds, ²⁸⁰Cn, ²⁸⁴Fl, ²⁸⁸Lv, ²⁹²Og, ²⁶⁹Sg, ²⁷³Hs, ²⁷⁷Ds, ²⁸¹Cn, ²⁸⁵Fl, ²⁸⁹Lv, ²⁹³Og(α), (SF); calculated α- and SF-decay half-lives and Q(α) values for ^{289,290,291,292,293}Og isotopes and their α daughters. Coulomb and proximity potential model for deformed nuclei. Comparison with several other theoretical calculations, and with experimental results for ²⁹⁴Og and its decay products ²⁹⁰Lv, ²⁸⁶Fl and ²⁸²Cn.

doi: 10.1103/PhysRevC.89.064604
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2014SA40      Nucl.Phys. A929, 20 (2014)

K.P.Santhosh, B.Priyanka

Heavy particle radioactivity from superheavy nuclei leading to ²⁹⁸114 daughter nuclei

RADIOACTIVITY ^{290,292,294,296,298,300,302,304,306,308,310,312,314}Lv(α);^{294,296,298,300,302,304,306,308,310,312,314,316,318,320}Og(⁸Be), (¹⁰Be);^{300,302,304,306,308,310,312,314,316,318,320,322,324}120(¹⁴C);^{306,308,310,312,314,316,318,320,322,324,326,328,330}122(²⁰O);^{310,312,314,316,318,320,322,324,326,328,330,332,334}124(²⁴Ne); calculated Q, T_1/2 using CPPM (Coulomb and proximity potential model). Compared with other calculations.

doi: 10.1016/j.nuclphysa.2014.05.015
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2014SA52      J.Phys.(London) G41, 105108 (2014)

K.P.Santhosh, S.Krishnan, B.Priyanka

The emission probabilities of long range alpha particles from even-even ^244-252Cm isotopes

RADIOACTIVITY ^{242,244,246,248,250,252}Cf(SF); calculated Eα, Iα, yields, α-particle kinetic energies; deduced driving potential.

doi: 10.1088/0954-3899/41/10/105108
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2014SA61      Int.J.Mod.Phys. E23, 1450059 (2014)

K.P.Santhosh, B.Priyanka

Probable cluster decays from ^270-318118 superheavy nuclei

RADIOACTIVITY ^{286,288,290,292,294}Og(α), (⁸Be), (¹²C), (¹⁴C), (²⁴Ne), (²⁸Mg), (³²Si), ²⁹⁶Og(α), (⁸Be), (¹²C), (¹⁴C), ²⁹⁸Og(α), (¹⁴C), ^300,302Og(α), (⁸Be), (¹⁴C), ³⁰⁴Og(α), (⁸Be), (¹⁰Be), (¹⁴C), ^306,308Og(α), (¹⁰Be), (¹⁴C), ^310,312Og(α), (¹⁰Be), (¹⁴C), (²²O), ³¹⁴Og(α), (¹⁴C), (²²O), ³¹⁶Og(α), (²²Ne), ³¹⁸Og(α); calculated T_1/2. Coulomb and proximity potential model, comparison with experimental data.

doi: 10.1142/S0218301314500591
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2014SA62      Int.J.Mod.Phys. E23, 1450074 (2014)

K.P.Santhosh, S.Krishnan, B.Priyanka

³⁴Si accompanied ternary fission of ²⁴²Cm in equatorial and collinear configuration

RADIOACTIVITY ²⁴²Cm(SF); ³⁴Si. calculated the driving potential for ternary fission, fragment distributions, yields for ternary and binary fission.

doi: 10.1142/S0218301314500712
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2014SA67      Phys.Rev. C 90, 054614 (2014)

K.P.Santhosh, B.Priyanka

Predictions for the α-decay chains of Z = 120 superheavy nuclei in the range 272 ≤ A ≤ 319

RADIOACTIVITY Z=120, A=272-319(α), (SF); A=228-315(α), (SF); calculated α- and SF-decay half-lives, predicted decay modes for Z=120 isotopes and their α daughter nuclei. Coulomb and proximity potential model for deformed nuclei (CPPMDN). Comparison with Viola-Seaborg and other formulations, and with available experimental data. Z=120, A=275-287(p); Z=120, A=273-291(2p); deduced S(p), S(2p); predicted proton emitters due to negative S(p) and S(2p) values. Z=120, A=292-308(α); predicted α emitters.

doi: 10.1103/PhysRevC.90.054614
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2013SA30      Phys.Rev. C 87, 064611 (2013)

K.P.Santhosh, B.Priyanka

Theoretical predictions for α-decay chains of Z=119 isotopes in the region 274≤A≤313

RADIOACTIVITY ^{274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313}119(α), (SF); A=230-309, Z=117-97(α), (SF); calculated Q(α), α decay half-lives using Coulomb and Proximity Potential Model for Deformed Potential (CPPMDN), CPPM, and Viola-Seaborg semi-empirical (VSS) methods, and SF half-lives of Z=119, A=274-313 isotopes and their decay products through α-decay chains.

doi: 10.1103/PhysRevC.87.064611
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2013SA32      Eur.Phys.J. A 49, 66 (2013)

K.P.Santhosh, B.Priyanka

The role of doubly magic ²⁰⁸Pb and its neighbour nuclei in cluster radioactivity

RADIOACTIVITY Pa(²²Ne), Np(²⁴Ne), (²⁸Mg), Pu(²⁶Mg), Am(³²Si), Cm(³²Si), (³³Si); calculated Q, T_1/2. ²⁰⁸Pb deduced role of daughter doubly magic nucleus, similar for near-doubly magic nuclei.

doi: 10.1140/epja/i2013-13066-y
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2013SA57      Int.J.Mod.Phys. E22, 1350081 (2013)

K.P.Santhosh, B.Priyanka

Alpha-decay studies on ^130-153Eu nuclei

RADIOACTIVITY ^{130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153}Eu(α); calculated T_1/2. Coulomb and proximity potential model (CPPM), comparison with available data.

doi: 10.1142/S021830131350081X
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2013SA67      Eur.Phys.J. A 49, 150 (2013)

K.P.Santhosh, B.Priyanka

Alpha decay of ^184-224Bi isotopes from the ground state and isomeric state

RADIOACTIVITY ^{184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224}Bi(α); calculated ground-to-ground, ground-to-isomeric, isomeric-to-ground, isomeric-to-isomeric state T_1/2 using CPPM (Coulomb and proximity potential model) with deformation-dependent assault frequency. Compared with available data.

doi: 10.1140/epja/i2013-13150-4
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2012SA05      Nucl.Phys. A877, 1 (2012)

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

Fine structure in the α-decay of odd-even nuclei

RADIOACTIVITY ^211,213Bi, ^211,215,217At, ²²¹Fr, ^{215,221,223,225,227}Ac, ^{217,225,227,229,231}Pa, ^235,237Np, ^241,243Am, ^247,249Bk, ^{247,251,253,255}Es, ^255,257Md(α); calculated T_1/2, α-branching ratio to individual residual states using CPPMDN (Coulomb and proximity potential model for deformed nuclei). Compared with data.

doi: 10.1016/j.nuclphysa.2012.01.009
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2012SA11      Phys.Rev. C 85, 034604 (2012)

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

α-decay chains from ^{293, 294}117 superheavy nuclei

RADIOACTIVITY ²⁷⁰Db, ²⁷⁴Bh, ²⁷⁸Mt, ^281,282Rg, ^285,286Nh, ^289,290Mc, ^293,294Ts(α); calculated half-life. Coulomb and proximity potential model for deformed nuclei (CPPMDN). Comparison with Viola-Seaborg systematic, generalized density dependent cluster model, and experimental data.

doi: 10.1103/PhysRevC.85.034604
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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
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2012SA31      Nucl.Phys. A889, 29 (2012)

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

Cluster decay half-lives of trans-lead nuclei within the Coulomb and proximity potential model

RADIOACTIVITY ^{199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226}Fr(¹⁴C), ^{202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230}Ra(¹⁴C), (²⁰O), ^{206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232}Ac(¹⁴C), (¹⁵N), ^{209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237}Th(¹⁶C), (¹⁸O), (²⁰O), (²²O), (²⁴Ne), (²⁶Ne), ^{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}Pa(²³F), (²⁴Ne), ^{217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241}U(²⁰O), (²²Ne), (²⁴Ne), (²⁵Ne), (²⁶Ne), (²⁸Mg), (²⁹Mg), (³⁰Mg), ^{225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242}Np(³⁰Mg), ^{225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244}Pu(²⁸Mg), (³⁰Mg), (³²Si), (³⁴Si), ^{231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246}Am(³⁴Si), ^{233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249}Cm(³⁴Si); calculated Q-value, T_1/2 using CPPM (Coulomb and proximity potential model), Universal formula for cluster decay, Universal decay law and Scaling Law.

doi: 10.1016/j.nuclphysa.2012.07.002
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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
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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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