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NSR database version of May 10, 2024.

Search: Author = C.Nithya

Found 18 matches.

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2024NI02      Phys.Rev. C 109, 014612 (2024)

C.Nithya, K.P.Santhosh

Examination of the decay modes of 293-295Og

doi: 10.1103/PhysRevC.109.014612
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2023NI09      Phys.Rev. C 108, 014606 (2023)

C.Nithya, K.P.Santhosh

Theoretical studies of the decay chain of the isotopes 298, 299120

RADIOACTIVITY 298,299120, 294,295Og, 290,291Lv, 286,287Fl, 282,283Cn, 278,279Ds, 274,275Hs, 270,271Sg(α); calculated Q, T1/2. 298,299120(SF); calculated T1/2. Coulomb and proximity potential model for deformed nuclei (CPPMDN) used for α-decay and shell-effect-dependent formula for spontaneous fission. Showed that the isotopes 298120 and 299120 decay via the 4α chain followed by spontaneous fission. Comparison to available experimental data.

doi: 10.1103/PhysRevC.108.014606
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2022NI01      Nucl.Phys. A1020, 122400 (2022)

C.Nithya, K.P.Santhosh

Studies on the decay modes of superheavy nuclei with Z = 120

RADIOACTIVITY 294,295,297,298,301,302,303,304,308120(α), (SF); calculated T1/2 using the modified generalized liquid drop model (MGLDM). Comparison with available data.

doi: 10.1016/j.nuclphysa.2022.122400
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2021SA34      Phys.Rev. C 104, 024617 (2021)

K.P.Santhosh, C.Nithya, T.A.Jose

Decay modes of superheavy nuclei using a modified generalized liquid drop model and a mass-inertia-dependent approach for spontaneous fission

RADIOACTIVITY 253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268Rf, 258,259,260,261,262,263,264,265,266,267,268,269,270,271,272Sg, 263,264,265,266,267,268,269,270,271,272,273,274,275,276,277Hs, 267,268,269,270,271,272,273,274,275,276,277,278,279,280,281Ds, 276,277,278,279,280,281,282,283,284,285Cn, 284,285,286,287,288,289Fl, 289,290,291,292,293Lv, 293,294,295Og(α), (SF); 255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270Db, 260,261,262,263,264,265,266,267,268,269,270,271,272,273,274Bh, 265,266,267,268,269,270,271,272,273,274,275,276,277,278,279Mt, 272,273,274,275,276,277,278,279,280,281,282,283Rg, 278,279,280,281,282,283,284,285,286,287Nh, 287,288,289,290,291Mc, 291,292,293,294Ts(α), (SF); calculated α decay and SF decay T1/2 of superheavy nuclei using modified generalized liquid drop model (MGLDM) with the proximity 77 parametrization for α decay, and a mass-inertia-dependent approach for spontaneous fission. Comparison with available experimental T1/2.

doi: 10.1103/PhysRevC.104.024617
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2018SA08      Pramana 90, 35 (2018)

K.P.Santhosh, C.Nithya

Theoretical studies on the α-decay half-lives of hyper and normal isotopes of Po

RADIOACTIVITY 187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224Po(α); calculated hypernuclei Q-value, T1/2. Comparison with available data.

doi: 10.1007/s12043-018-1528-y
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2018SA12      At.Data Nucl.Data Tables 121-122, 216 (2018)

K.P.Santhosh, C.Nithya

Predictions on the modes of decay of odd Z superheavy isotopes within the range 105 ≤ Z ≤ 135

NUCLEAR STRUCTURE Z=105-135; calculated decay modes of 1051 odd Z superheavy nuclei, α-decay T1/2 using the Coulomb and proximity potential model for deformed nuclei (CPPMDN). Comparison with available data.

doi: 10.1016/j.adt.2017.12.001
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2018SA15      Phys.Rev. C 97, 044615 (2018)

K.P.Santhosh, C.Nithya

α-decay chains of superheavy nuclei with Z=125

RADIOACTIVITY 310,311,312,313,314,315,316,317,318,319,320,323125, 306,307,308,309,310,311,312,313,314,315,316,319123, 302,303,304,305,306,307,308,309,310,311,312,315121, 298,299,300,301,302,303,304,305,306,307,308,311119, 294,295,296,297,298,299,300,301,302,303,304,307Ts, 290,291,292,293,294,295,296,297,298,299,300,303Mc, 286,287,288,289,290,291,292,293,294,295,296,299Nh, 282,283,284,285,286,287,288,289,290,291,292,295Rg, 278,279,280,281,282,283,284,285,286,287,288,291Mt, 274,275,276,277,278,279,280,281,282,283,284,287Bh(α), (SF); calculated Q(α) value using four different mass models, T1/2(α) using Coulomb and proximity potential model for deformed nuclei (CPPMDN) with six different theoretical formalisms, and T1/2(SF) using shell-effect-dependent formula. From a comparison of α-decay half-lives with spontaneous fission half-lives deduced that 310,311125 decay by six α chains, 312,313,314,315,316,317,318125 decay by five α chains, 319,320125 by two α chains, and 323125 by one α chain, and that 321,322,324,325,326,327,328,329,330,331,332,333,334,335,336,337,338,339125 decay by SF mode. 303,304,305,306,307,308,309125; calculated S(p) and S(2p), possible decay by proton emission.

doi: 10.1103/PhysRevC.97.044615
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2018SA25      Phys.Rev. C 97, 064616 (2018)

K.P.Santhosh, C.Nithya

Systematic studies of α and heavy-cluster emissions from superheavy nuclei

RADIOACTIVITY 294Og, 293,294Ts, 290,291,292,293Lv, 287,288,289,290Mc, 285,287,288,289Fl, 282,283,284,285,286Nh, 281,282,283,285Cn, 278,279,280Rg, 277Ds, 274,275,276,278Mt, 273,275Hs, 270,271,272,274Bh(α); 252Fm(48Ca); 278Hs(72Ni); 282Ds(74Ni); 282Cn(74Zn); 284Cn(76Zn); 284Fl(78Ge); 286,288Fl(80Ge); 290,294Fl(82Ge); 292Lv(84Se); 294Og(86Kr); 300120(92Sr), (94Sr); 265Rf(55Ti); 267Rf(61Cr); 269Sg(64Fe); 271Sg(65Fe); 273Hs(68Ni); 275Hs(70Ni); 277Hs, 279Ds(71Ni); 281Ds(72Ni); 281Cn(74Zn); 283Cn(76Zn); 285Cn(77Zn); 287Fl(80Ge); 289Fl(81Ge); 291Lv(84Se); 293Lv(85Se); 295Og(87Kr); 299120(91Sr); 301120(93Sr); 253Es(46Ar); 287Nh(79Ga); 297119(89Rb); 299119(91Rb); 278Bh(73Ni); 282Mt(71Co); 286Rg(78Cu); 290Nh(81Ga); 300119(92Rb); 258Fm(α), (50Ar); 260Fm(α), (52Ar); 262Rf(α), (54Ti); 266Sg(α), (58Cr); 268Sg(α), (60Cr); 270Hs(α), (62Fe); 272Hs(α), (64Fe); 274Hs(α), (66Fe); 274Ds(α), (66Ni); 276Ds(α), (68Ni); 278Ds(α), (70Ni); 280Ds(α), (72Ni); 282Ds(α), (74Ni); 284Ds(α), (76Ni); 286Ds(α), (78Ni); 282Cn(α), (74Zn); 284Cn(α), (76Zn); 286Cn(α), (78Zn); 288Cn(α), (80Zn); 290Cn(α), (82Zn); 286Fl(α), (78Ge); 288Fl(α), (80Ge); 290Fl(α), (82Ge); 292Fl(α), (84Ge); 294Fl(α), (86Ge); 296Fl(α), (88Ge); 290Lv(α), (82Se); 292Lv(α), (84Se); 294Lv(α), (86Se); 296Lv(α), (88Se); 298Lv(α), (90Se); 294Og(α), (86Kr); 296Og(α), (88Kr); 298Og(α), (90Kr); 300Og(α), (92Kr); 302Og(α), (94Kr); 304Og(α), (96Kr); 306Og(α), (98Kr); 308Og(α), (100Kr); 296120(α), (88Sr); 298120(α), (90Sr); 300120(α), (92Sr); 302120(α), (94Sr); 304120(α), (96Sr); 306120(α), (98Sr); 308120(α), (100Sr); 310120(α), (102Sr); 312120(α), (104Sr); 261Rf(α), (53Ti); 267Sg(α), (59Cr); 279Ds(α), (71Ni); 281Ds(α), (73Ni); 283Ds(α), (75Ni); 285Ds(α), (77Ni); 285Cn(α), (77Zn); 287Cn(α), (79Zn); 289Cn(α), (81Zn); 291Fl(α), (83Ge); 295Fl(α), (87Ge); 293Lv(α), (85Se); 295Lv(α), (87Se); 297Lv(α), (89Se); 295Og(α), (87Kr); 297Og(α), (89Kr); 299Og(α), (91Kr); 297120(α), (89Sr); 301120(α), (93Sr); 303120(α), (95Sr); 313120(α), (105Sr); 282Rg(α), (74Cu); 284Rg(α), (76Cu); 286Rg(α), (78Cu); 288Rg(α), (80Cu); 286Nh(α), (78Ga); 288Nh(α), (80Ga); 290Nh(α), (82Ga); 288Mc(α), (80As); 292Mc(α), (84As); 294Mc(α), (86As); 296Mc(α), (88As); 294Ts(α), (86Br); 296Ts(α), (88Br); 298Ts(α), (90Br); 300Ts(α), (92Br); 298119(α), (90Rb); 300119(α), (92Rb); 302119(α), (94Rb); 304119(α), (96Rb); 306119(α), (98Rb); 308119(α), (100Rb); 310119(α), (102Rb); 271Mt(α), (63Co); 273Mt(α), (65Co); 279Mt(α), (71Co); 281Mt(α), (73Co); 283Mt(α), (75Co); 281Rg(α), (73Cu); 283Rg(α), (75Cu); 285Rg(α), (77Cu); 287Rg(α), (79Cu); 283Nh(α), (75Ga); 285Nh(α), (77Ga); 287Nh(α), (79Ga); 289Nh(α), (81Ga); 291Nh(α), (83Ga); 287Mc(α), (79As); 289Mc(α), (81As); 291Mc(α), (83As); 293Mc(α), (85As); 295Mc(α), (87As); 297Mc(α), (89As); 293Ts(α), (85Br); 295Ts(α), (87Br); 297Ts(α), (89Br); 299Ts(α), (91Br); 301Ts(α), (93Br); 297119(α), (89Rb); 299119(α), (91Rb); 301119(α), (93Rb); 303119(α), (95Rb); 305119(α), (97Rb); 307119(α), (99Rb); 309119(α), (101Rb); calculated Q values, T1/2, and branching ratio relative to α-decay for cluster decays. Comparison with available experimental values, and with predictions of analytical super-asymmetric fission (ASAF) model calculations, when possible. Relevance to decays of superheavy nuclei (SHN).

doi: 10.1103/PhysRevC.97.064616
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2018SA41      Phys.Rev. C 98, 024625 (2018)

K.P.Santhosh, C.Nithya, H.Hassanabadi, D.T.Akrawy

α-decay half-lives of superheavy nuclei from a modified generalized liquid-drop model

RADIOACTIVITY 257,268,269,271Sg, 262,263,270,271,272,274Bh, 261,262,273,275Hs, 266,267,275,276,278Mt, 265,266,277,279,281Ds, 272,274,278,279,280,281,282Rg, 271,279,281,283,285Cn, 279,281,282,283,284,285,286Nh, 283,284,285,286,287,288,289Fl, 286,292,287,288,289,290Mc, 287,288,290,291,292,293Lv, 290,292,293,294Ts, 291,292,294Og(α); 296,297119, 295,300120, 304,306121, 301,306122, 310,312123, 307,312124, 316,318125, 313,320126, 320,322127, 319,320128, 326,327129, 324,325130, 334,336131, 331,332132, 329,330133, 333,334134(α); calculated half-lives using the generalized liquid-drop model (GLDM) with 1977 nuclear proximity potential proposed by Blocki et al. Comparison with available experimental values, and with half-lives using GLDM model of Royer et al.

doi: 10.1103/PhysRevC.98.024625
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2017SA29      Phys.Rev. C 95, 054621 (2017)

K.P.Santhosh, C.Nithya

α-decay chains of the superheavy nuclei 255-350Rg

NUCLEAR STRUCTURE 255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,273Rg; calculated S(p), S(2p); deduced negative S(p), thus decay through proton emission.

RADIOACTIVITY 272,274,275,276,277,278,279,280,281,282Rg, 268,270,271,272,273,274,275,276,277,278Mt, 264,266,267,268,269,270,271,272,273,274Bh, 260,262,263,264,265,266,267,268,269,270Db, 256,258,260,261,262,263,264,265,266Lr, 252,254,255,256,257,258,259,260,261,262Md, 248,250,251,252,253,254,255,256,257,258Es, 244,246,247,248,249,250,251,252,253,254Bk, 240,242,243,244,245,246,247,248,249,250Am(α), (SF); calculated half-lives for α and SF decays using Coulomb and proximity potential model for deformed nuclei (CPPMDN). Comparison with other theoretical and empirical calculations, and with available experimental data. A=283-345, Z=111; decay by SF mode. A=346-350, Z=111; stable against α decay.

doi: 10.1103/PhysRevC.95.054621
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2017SA57      Eur.Phys.J. A 53, 189 (2017)

K.P.Santhosh, C.Nithya

Decay properties of 256-339Ds superheavy nuclei

RADIOACTIVITY 256,257,258,259,260,262,262Ds(α), (p), (SF); calculated p-decay T1/2 using 5 different models (CPPMDN (Coulomb and Proximity Potential Model for Deformed Nuclei), CPPM (Coulomb and Proximity Potential), Gamow-like approach, Hatsukawa semi-empirical relation, Ni approach), α-decay T1/2 using 6 different models, spontaneous fission T1/2. Compared with available data.

doi: 10.1140/epja/i2017-12379-1
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2017SA63      Phys.Rev. C 96, 044613 (2017)

K.P.Santhosh, C.Nithya

α-decay chains of superheavy 265-279Mt isotopes

RADIOACTIVITY 266,268,270,274,275,276,277,278Mt, 262,264,266,270,271,272,274Bh, 258,260,262,266,267,268,270Db, 256,258Lr, 254Md(α), (SF); 265,266,267,268,269,270,271,272,273,274,275,276,277,278Mt, 261,262,263,264,265,266,267,268,269,270,271,272,273,274Bh, 257,258,259,260,261,262,263,264,265,266,267,268,269,270Db, 253,254,255,256,257,258,259,260,261,262,263,264,265,266Lr, 249,250,251,252,253,254,255,256,257,258,259,260,261,262Md, 245,246,247,248,249,250,251,252,253,254,255,256,257,258Es, 241,242,243,244,245,246,247,248,249,250,251,252,253,254Bk, 237,238,239,240,241,242,243,244,245,246,247,248,249,250Am, 233,234,235,236,237,238,239,240,241,242,243,244,245,246Np, 229,230,231,232,233,234,235,236,237,238,239,240,241,242Pa, 225,226,227,228,229,230,231,232,233,234,235,236,237,238Ac(α), (SF); calculated half-lives for α and SF decays using Coulomb and proximity potential model for deformed nuclei (CPPMDN) for α decays and shell-effect-dependent formula for SF half-lives. Comparison with available experimental values, and with several other theoretical calculations.

doi: 10.1103/PhysRevC.96.044613
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2017SA65      At.Data Nucl.Data Tables 119, 33 (2017)

K.P.Santhosh, C.Nithya

Predictions on the modes of decay of even Z superheavy isotopes within the range 104 ≤ Z ≤ 136

NUCLEAR STRUCTURE Z=104-136; calculated decay modes and T1/2, Q-values. Comparison with available data.

doi: 10.1016/j.adt.2017.03.003
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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 T1/2 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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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 298,299,300,301,302,303,304,305,306,307,309,310,311,312,313,314,315,316,317,318122, 305,306,307,308,313,314,315,316,317,318,319,320,321,322,323124, 317,318,319,320,323,324,325,326,327,328,329,330,331126, 321,322,323,324,328,329,330,331,332,333128(SF), (α); calculated T1/2 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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2016SA49      Int.J.Mod.Phys. E25, 1650079 (2016)

K.P.Santhosh, C.Nithya

Predictions on the alpha decay chains of superheavy nuclei with Z=121 within the range 290 ≤ A ≤ 339

RADIOACTIVITY 309,310,311,312,313,314121, 305,306,307,308,309,310119, 301,302,303,304Ts, 298Mc(α); calculated T1/2. Comparison with available data.

doi: 10.1142/S0218301316500798
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2016SA53      Phys.Rev. C 94, 054621 (2016)

K.P.Santhosh, C.Nithya

Theoretical studies on the modes of decay of superheavy nuclei

RADIOACTIVITY 232Th, 234,236,238U, 236,238,240,242,244,246Pu, 240,242,244,246,248,250Cm, 242,244,246,248,250,252Cf, 246,248,250,252,254,256Fm, 252,254,256No, 254,256,258,260,262Rf, 258,260,262,264,266Sg, 258,260,262,264,266,268,270,272,274,276,278,280Hs, 264,266,268,270,272,274,276,278,280,282,284Ds, 270,272,274,276,278,280,282,284,286Cn, 274,276,278,280,282,284,286,288Fl, 284,286,288,290,292,294,296,298,300,302,304Lv, 288,290,292,294,296,298,300,302,304Og, 292,294,296,298,300,302,304,306120(SF); calculated half-lives. 265,267Rf, 266,267,268,270Db, 269,271Sg, 270,271,272,274Bh, 273,275,277Hs, 274,275,276,277,278Mt, 277,278,281Ds, 278,279,280,281,282Rg, 281,282,283,284,285Cn, 282,283,284,285,286Nh, 285,286,287,288,289Fl, 287,288,289,290Mc, 290,291,292,293Lv, 293,294Ts, 294Og(α), (SF); calculated half-lives and predicted dominant decay mode. Coulomb and proximity potential model for deformed nuclei (CPPMDN). Comparison with several other theoretical calculations, and available experimental values.

doi: 10.1103/PhysRevC.94.054621
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2016SA56      Eur.Phys.J. A 52, 371 (2016)

K.P.Santhosh, C.Nithya

Theoretical predictions on the decay properties of superheavy nuclei Z = 123 in the region 297 ≤ A ≤ 307

RADIOACTIVITY Z=123(α), (SF); calculated T1/2 for masses from 297 to 307 and their α-decay daughter nuclei using CPPMDN (Coulomb and Proximity Potential model for Deformed Nuclei); deduced model parameters. Compared with other calculations.

doi: 10.1140/epja/i2016-16371-y
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