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NSR database version of April 27, 2024.

Search: Author = G.Saxena

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2024AG02      Nucl.Phys. A1044, 122843 (2024)

M.Aggarwal, G.Saxena, P.Parab

Correlation between the shape coexistence and stability in Mo and Ru isotopes

NUCLEAR STRUCTURE ^{78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144}Mo, ^{83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152}Ru; calculated deformation parameters, shell corrections, ground state shape and deformation within the microscopic theoretical framework using Nilsson Strutinsky Method and Relativistic Mean Field Model; deduced energy minima. Comparison with available data.

doi: 10.1016/j.nuclphysa.2024.122843
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2024GH03      J.Phys.(London) G51, 045105 (2024)

T.Ghosh, Sangeeta, B.Maheshwari, G.Saxena, B.K.Agrawal

Indispensability of cross-shell contributions in neutron resonance spacing

NUCLEAR STRUCTURE ²⁴Na, ^25,26,27Mg; calculated J and π dependent nuclear level densities (NLDs) for a configuration interaction shell model using a numerically efficient spectral distribution method; deduced the s-wave neutron resonance spacing (D0).

doi: 10.1088/1361-6471/ad29e9
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2024HI02      Chin.Phys.C 48, 024001 (2024)

A.Hingu, S.Mukherjee, S.Parashari, A.Sangeeta, A.Gandhi, M.Upadhyay, M.Choudhary, S.Bamal, N.Singh, G.Mishra, S.De, S.Sood, S.Prasad, G.Saxena, A.Kumar, R.G.Thomas, B.K.Agrawal, K.Katovsky, A.Kumar

Investigation of ⁵⁸Ni(n, p)⁵⁸Co reaction cross-section with covariance analysis

NUCLEAR REACTIONS ⁵⁸Ni(n, p), ¹¹⁵In(n, n'), E=1.7-2.7 MeV; measured reaction products, Eγ, Iγ; deduced σ and correlation matrix. Comparison with EXFOR, ENDF/B-VIII.0, JEFF-3.3, JENDL-4.0, and CENDL-3.2 libraries, TALYS calculations. The Folded Tendem Ion Accelerator (FOTIA) facility at the Bhabha Atomic Research Centre (BARC), Mumbai, India.

doi: 10.1088/1674-1137/ad0e5a
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2024SA15      Eur.Phys.J. A 60, (2024)

G.Saxena, P.K.Sharma, P.Saxena

A global study of α-clusters decay in heavy and superheavy nuclei with half-life and preformation factor

NUCLEAR STRUCTURE N=100-180; calculated T_1/2, preformation factor with microscopic structural information and cast in the form of quite precise empirical formulas.

doi: 10.1140/epja/s10050-024-01259-w
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2023AK06      Int.J.Mod.Phys. E32, 2350026 (2023)

D.T.Akrawy, H.C.Manjunatha, G.Saxena, Ali H.Ahmed, N.Sowmya

Systematic study of α-decay half-lives for Pa isotopes using MGLDM model

RADIOACTIVITY ^{211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241}Pa(α); calculated T_1/2 using MYQZR, RoyerA, YQZR, MRenB, Akrawy, SemFIS and AKRE formulas, MGLDM macroscopic model.

doi: 10.1142/S021830132350026X
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2023GH04      Eur.Phys.J. A 59, 266 (2023)

T.Ghosh, Sangeeta, G.Saxena, B.K.Agrawal, U.Datta

Impact of density dependence of symmetry energy on astrophysical S-factor for heavy-ion fusion reactions

NUCLEAR STRUCTURE ^16,24O, ^40,48,54,60Ca, ⁷⁸Ni, ^124,132Sn; analyzed available data; deduced Radial density distributions for neutrons and protons from SLy4 and SkO Skyrme effective interactions.

NUCLEAR REACTIONS ⁴⁰Ca(⁴⁰Ca, X), ¹⁶O(¹⁶O, X), ²⁴O(²⁴O, X), ⁵⁴Ca(⁵⁴Ca, X), ⁶⁰Ca(⁶⁰Ca, X), ⁷⁸Ni(⁷⁸Ni, X), ¹²⁴Sn(¹²⁴Sn, X), ¹³²Sn(¹³²Sn, X), E(cm)=45-50 MeV; analyzed available data; deduced σ, the maximum barrier height and width obtained by DFM potentials M3Y-Paris without density dependence (PDD0), sub-barrier fusion σ and astrophysical S-factor. Comparison with available data.

doi: 10.1140/epja/s10050-023-01173-7
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2023JA02      Nucl.Phys. A1031, 122597 (2023)

A.Jain, P.K.Sharma, S.K.Jain, J.K.Deegwal, G.Saxena

Cluster radioactivity in trans-lead region: A systematic study with modified empirical formulas

RADIOACTIVITY ²²¹Fr, ^221,222,223Ra, ²²³Ac(¹⁴C), ²²³Ac(¹⁵N), ²²⁴Ra, ²²⁵Ac, ²²⁶Ra, ²²⁶Th(¹⁴C), ²²⁸Th(²⁰O), ²³⁰Th(²⁴Ne), ²³⁰U(²²Ne), ²³¹Pa(²⁴Ne), ²³²Th(²⁴Ne), (²⁶Ne), ²³²U(²⁴Ne), (²⁸Mg), ²³³U(²⁴Ne), (²⁵Ne), (²⁸Mg), ²³⁴U(²⁴Ne), (²⁶Ne), (²⁸Mg), ²³⁵U(²⁴Ne), (²⁵Ne), (²⁸Mg), (²⁹Mg), ²³⁶U(²⁴Ne), (²⁶Ne), (²⁸Mg), (³⁰Mg), ²³⁶Pu(²⁸Mg), ²³⁷Np(³⁰Mg), ²³⁸Pu(²⁸Mg), (³⁰Mg), (³²Si), ²⁴⁰Pu, ²⁴¹Am, ²⁴²Cm(³⁴Si), ²¹⁶Rn(⁸Be), ²²²Fr(¹⁴B), ²²¹Ra(¹³C), ²²³Ra(¹⁵C), ²²²Ac(¹⁴N), (¹⁵N), (¹⁶N), (¹⁷N), ²²⁴Th(¹⁶O), ²²⁵Th(¹⁷O), ²²⁶Th(¹⁸O), ²²⁷Th(¹⁹O), ²²⁸Th(²⁰O), ²²⁹Th(²¹O), ²³⁰Th(²²O), ²³¹Th(²³O), ²²⁸Pa(²⁰F), ²²⁹Pa(²¹F), ²³¹Pa(²³F), ²³¹U(²³Ne), (²⁵Ne); calculated T_1/2. Comparison with available data.

doi: 10.1016/j.nuclphysa.2022.122597
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2023SA02      J.Phys.(London) G50, 015102 (2023)

G.Saxena, M.Aggarwal, D.Singh, A.Jain, P.K.Sharma, H.L.Yadav

Deformation dependence of 2p-radioactivity half-lives: probe with a new formula across the mass region with Z < 82

RADIOACTIVITY ⁶Be, ¹²O, ¹⁶Ne, ¹⁹Mg, ⁴⁵Fe, ⁴⁸Ni, ⁵⁴Zn, ⁶⁷Kr, ¹⁰N, ²⁸Cl, ³²K, ⁵²Cu, ⁵⁷Ga, ^60,62As(2p); analyzed available data; deduced T_1/2 by employing our newly proposed semi-empirical formula wherein the nuclear deformation has been incorporated in a phenomenological way.

doi: 10.1088/1361-6471/ac991d
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2023SA35      Eur.Phys.J. A 59, 189 (2023)

G.Saxena, A.Jain

Cluster radioactivity from trans-tin to superheavy region using an improved empirical formula

RADIOACTIVITY ²²¹Fr, ^221,222,223Ra, ²²³Ac(¹⁴C), ²²³Ac(¹⁵N), ²²⁴Ra, ²²⁵Ac, ²²⁶Ra(¹⁴C), ²²⁶Th(¹⁸O), ²²⁸Th(²⁰O), ²³⁰Th(²⁴Ne), ²³⁰U(²²Ne), ²³¹Pa, ²³¹Pa, ²³²Th(²⁴Ne), ²³²Th(²⁶Ne), ^232,233U(²⁴Ne), ²³³U(²⁵Ne), (²⁸Mg), ²³⁴U(²⁴Ne), ²³⁴U(²⁶Ne), (²⁸Mg), ²³⁵U(²⁴Ne), (²⁵Ne), (²⁸Mg), (²⁹Mg), ²³⁶U(²⁸Mg), (³⁰Mg), ²³⁶Pu(²⁸Mg), ²³⁸Pu(³⁰Mg), (³²Si), ²⁴⁰Pu, ²⁴¹Am, ²⁴²Cm(³⁴Si), ¹¹⁴Ba(¹²C), ^111,112,113La(¹³N), ^{112,113,114,115}Ce(¹⁷O), ^116,117,118Ce(¹⁶O), ^114,115Pr(¹⁵F), ^116,117Pr(¹⁷F), ^116,117,118Nd(¹⁸Ne), ¹²¹Sm(²²Mg), ²⁸⁵Mc, ²⁸⁹Mc(⁸¹As), ^{275,276,277,278,279,280,281,282}Lv(⁸⁰Se), ^{283,284,285,286,287,288,289}Lv(⁸²Se), ^290,291Lv(⁸⁴Se), ^{279,280,281,282,283,284,285}Ts(⁸³Br), ^{286,287,288,289,290,291,292,293}Ts(⁸⁵Br), ²⁹⁵Ts(⁸⁷Br), ²⁸⁰Og(⁸⁴Kr), ²⁸¹Og(⁸⁶Kr), ^282,283,284Og(⁸⁴Kr), ^285,286,287Og(⁸⁶Kr), ²⁸⁸Og(⁸⁴Kr), ^{289,290,291,292}Og(⁸⁶Kr), ²⁹³Og(⁸⁷Kr), ²⁹⁴Og(⁸⁶Kr), ²⁹⁵Og(⁸⁷Kr), ²⁹⁶Og(⁸⁸Kr), ²⁹⁹Og(⁹¹Kr), ^287,288120(⁸⁸Sr), ²⁸⁹120(⁸⁹Sr), ^290,291,292120(⁸⁸Sr), ²⁹³120(⁹⁰Sr), ²⁹⁴120(⁸⁸Sr), ²⁹⁵120(⁸⁹Sr), ²⁹⁶120(⁹⁰Sr), ²⁹⁷120(⁸⁹Sr), ²⁹⁸120(⁹⁰Sr), ²⁹⁹120(⁹¹Sr), ³⁰⁰120(⁹²Sr), ³⁰¹120(⁹³Sr), ³⁰²120(⁹⁴Sr), ³⁰³120(⁹⁵Sr), ³⁰⁴120(⁹⁶Sr), ³⁰⁵120(⁹⁴Sr); calculated T_1/2. Comparison with available data.

doi: 10.1140/epja/s10050-023-01102-8
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2022AK06      Eur.Phys.J. A 58, 145 (2022)

D.T.Akrawy, A.I.Budaca, G.Saxena, A.H.Ahmed

Generalization of the screened universal α-decay law by asymmetry and angular momentum

RADIOACTIVITY ^106,108Te, ¹¹²Xe, ¹¹⁴Ba, ^146,148Sm, ^148,150,152Gd, ^150,152,154Dy, ^152,154Er, ^154,156Yb, ^156,158,160Hf, ^158,160,162W, ¹⁶⁶W, ¹⁶²Os, ¹⁶⁶Os, ¹⁷⁰Os, ¹⁷⁴Os, ^{178,180,182,184}Pt, ^188,190Pt, ^174,176Hg, ^180,182,184Hg, ¹⁸⁸Hg, ^188,190Pb, ²¹⁰Pb, ^{190,192,194,196,198,200,202,204,206,208,210,212,214,216,218}Po, ^{194,196,198,200,202}Rn, ^{206,208,210,212}Rn, ^218,220,222Rn, ^{206,208,210,212,214}Ra, ^{220,222,224,226}Ra, ²¹⁰Th, ^216,218Th, ^{222,224,226,228,230,232}Th, ^{224,226,228,230,232,234,236,238}U, ^{230,232,234,236,238,240,242,244}Pu, ^{238,240,242,244,246,248}Cm, ²⁴⁰Cf, ^{244,246,248,250,252,254}Cf, ^{248,250,252,254,256}Fm, ²⁵²No, ²⁵⁶No, ^256,258Rf, ^260,262Sg, ^264,266Hs, ²⁷⁰Hs, ²⁷⁰Ds, ^286,288Fl, ^290,292Lv, ²⁹⁴Og, ^105,107Te, ¹⁰⁹Xe, ¹⁴⁷Sm, ¹⁵¹Gd, ^151,153Dy, ^153,155Er, ^155,157Yb, ¹⁵⁷Hf, ¹⁵⁹W, ¹⁶⁵W, ¹⁶¹Os, ¹⁶⁷Os, ¹⁷³Os, ^{167,169,171,173,175,177}Pt, ¹⁸³Pt, ^{173,175,177,179}Hg, ^183,185Hg, ¹⁹¹Pb, ^187,189,191Po, ^{195,197,199,201}Po, ^{205,207,209,211,213}Po, ^{195,197,199,201,203}Rn, ^{207,209,211,213,215}Rn, ^219,221Rn, ^203,205Ra, ^{209,211,213,215,217,219,221}Ra, ^{211,213,215,217,219,221,223,225,227}Th, ^217,219U, ^223,225U, ²³⁵U, ^239,241Pu, ^{241,243,245,247}Cm, ^249,251Cf, ^{251,253,255,257}Fm, ²⁶³Rf, ^259,261Sg, ^269,271Sg, ^265,267Hs, ²⁷³Hs, ²⁶⁷Ds, ^269,271,273Ds, ²⁷⁷Ds, ²⁸¹Ds, ²⁸¹Cn, ²⁸⁵Cn, ^287,288,289Fl, ^291,293Lv, ¹¹¹I, ¹⁴⁷Eu, ^149,151Tb, ¹⁵³Tm, ¹⁶⁹Ir, ¹⁷⁷Ir, ¹⁷³Au, ^181,183,185Au, ^177,179Tl, ^187,189Bi, ^193,195Bi, ^211,213Bi, ^{197,199,201,203,205,207,209,211,213,215,217,219}At, ^{201,203,205,207,209,211,213,215,217,219,221,223}Fr, ^{209,211,213,215,217,219,221,223,225,227}Ac, ^{213,215,217,219}Pa, ^225,227Pa, ²³¹Pa, ^235,237Np, ^239,241,243Am, ^243,245Bk, ²⁴⁹Bk, ^243,245Es, ^255,257Lr, ^257,259Db, ²⁶³Db, ²⁶¹Bh, ²⁶⁷Bh, ²⁷⁵Mt, ²⁷⁹Rg, ^283,285Nh, ^287,289Mc, ²⁹³Ts, ^110,112I, ¹¹⁴Cs, ¹⁴⁸Eu, ^152,154Ho, ^154,156Tm, ¹⁵⁸Lu, ¹⁶²Ta, ^160,162Re, ¹⁶⁶Ir, ^170,172,174Au, ¹⁸²Au, ¹⁸²Tl, ^212,213,214Bi, ^{196,198,200,202,204,206,208,210,212,214,216,218}At, ^{200,202,204,206,208,210,212,214,216,218,220}Fr, ^{206,208,210,212,214,216,218,220,222,224}Ac, ²¹²Pa, ²¹⁶Pa, ²²⁶Pa, ²³⁰Pa, ²⁵⁴Es, ²⁵⁶Md, ^256,258Db, ²⁶⁰Bh, ^264,266Bh, ^270,272,274Bh, ²⁶⁸Mt, ^274,276,278Mt, ^272,274Rg, ^278,280Rg, ²⁷⁸Nh, ^284,286Nh, ^288,290Mc, ²⁹⁴Ts(α); calculated T_1/2. Comparison with available data.

doi: 10.1140/epja/s10050-022-00789-5
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2022GH01      J.Phys.(London) G49, 25103 (2022)

T.Ghosh, B.Maheshwari, Sangeeta, G.Saxena, B.K.Agrawal

Nuclear level densities away from line of β-stability

NUCLEAR STRUCTURE Z=10-80; analyzed available data; deduced nuclear level densities, ground-shell corrections, parameters.

doi: 10.1088/1361-6471/ac44ac
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2022SA17      Phys.Rev. C 105, 044320 (2022)

Sangeeta, T.Ghosh, B.Maheshwari, G.Saxena, B.K.Agrawal

Astrophysical reaction rates with realistic nuclear level densities

NUCLEAR STRUCTURE ⁵¹V, ⁵⁵Fe, ⁵⁹Ni; calculated ground-state energies, nuclear level densities. ^49,50Ti, ⁵¹V, ⁵³Cr, ^55,57Fe, ⁵⁹Ni; calculated S-wave neutron resonances. Ground state properties calculated by using shell-model with the GXPF1A residual interaction. Nuclear level densities obtained within the spectral distribution method (SDM). Comparison to available experimental data and other theoretical calculations.

NUCLEAR REACTIONS ⁵⁰V, ⁵⁴Fe, ⁵⁸Ni(n, γ), E(cm)<8 MeV; calculated σ(E), astrophysical reaction rates. TALYS 1.95 calculations using nuclear level densities obtained within the spectral distribution method (SDM). Comparison to experimental data and recommended values from ENDF and KADONIS V0.3.

doi: 10.1103/PhysRevC.105.044320
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2022SH29      Phys.Scr. 97, 045307 (2022)

R.Sharma, A.Jain, P.K.Sharma, S.K.Jain, G.Saxena

A comprehensive study of decay modes associated with Pb isotopes

RADIOACTIVITY ^{176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,205}Pb(β⁺), (EC), ^{209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266}Pb(β^-), ^{178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193}Pb(α); calculated T_1/2. Comparison with available data.

doi: 10.1088/1402-4896/ac607c
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2021JA09      Hyperfine Interactions 242, 60 (2021)

A.Jain, R.Sharma, S.K.Jain, P.K.Sharma, G.Saxena

Cluster radioactivity in ^{294, 296}Og

RADIOACTIVITY ^294,296Og(α), (⁸Be), (¹²C), (¹⁴C), (¹⁶O), (¹⁸O), (²⁰O), (²²Ne), (²⁴Ne), (²⁶Mg), (²⁸Mg), (³⁰Si), (³²Si), (³⁴Si), (³⁶S), (³⁸S), (⁴⁰Ar), (⁴²Ar), (⁴⁴Ar), (⁴⁶Ca), (⁴⁸Ca), (⁵⁰Ca), (⁵²Ti), (⁵⁴Ti), (⁵⁶Cr), (⁵⁸Cr), (⁶⁰Cr), (⁶²Fe), (⁶⁴Fe), (⁶⁶Ni), (⁶⁸Ni), (⁷⁰Ni), (⁷²Zn), (⁷⁴Ge), (⁷⁶Zn), (⁷⁸Ge), (⁸⁰Ge), (⁸²Ge), (⁸⁴Se), (⁸⁶Kr), (⁸⁸Kr), (⁹⁰Sr), (⁹²Kr), (⁹⁴Sr), (⁹⁶Zr), (⁹⁸Zr), (¹⁰⁰Mo), (¹⁰²Mo); calculated T_1/2. Comparison with available data.

doi: 10.1007/s10751-021-01748-0
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2021SA30      J.Phys.(London) G48, 055103 (2021)

G.Saxena, P.K.Sharma, P.Saxena

Modified empirical formulas and machine learning for α-decay systematics

RADIOACTIVITY ^{276,278,280,282,284}Cn, ^{284,285,286,287,288,289}Fl, ^290,292,294Lv, ²⁹⁴Og(α), (SF); calculated T_1/2. Comparison with available data.

doi: 10.1088/1361-6471/abcd1c
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2021SA57      J.Phys.(London) G48, 125102 (2021)

G.Saxena, M.Kumawat, R.Sharma, M.Aggarwal

Collapse of N = 28 magicity in exotic ⁴⁰Mg-probe of deformed halo and 2n-radioactivity at Mg neutron drip-line

NUCLEAR STRUCTURE ^40,42,44Mg; calculated neutron separation energies, single particle energies, neutron and proton pairing energy contributions, shell gaps, radial moments, radial density distributions, neutron skin thickness. ⁴⁰Mg; deduced neutron halo, dineutron correlations.

doi: 10.1088/1361-6471/ac288b
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2021SA59      Phys.Scr. 96, 125304 (2021)

G.Saxena, A.Jain, P.K.Sharma

A new empirical formula for α-decay half-life and decay chains of Z = 120 isotopes

NUCLEAR STRUCTURE Z=50-118; analyzed available data; deduced a new formula (QF) with only 4 coefficients as well as to modify the Tagepera-Nurmia formula with just 3 coefficients (MTNF) by employing nonlinear regressions.

RADIOACTIVITY ^{288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304}120, ^{284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300}Og, ^{280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296}Lv, ^{276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292}Fl, ^{272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288}Cn, ^{268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284}Ds, ^{264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280}Hs, ^{260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276}Sg(α); calculated T_1/2. Comparison with available data.

doi: 10.1088/1402-4896/ac1a4d
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2021SH29      Int.J.Mod.Phys. E30, 2150070 (2021)

R.Sharma, A.Jain, M.Kaushik, S.K.Jain, G.Saxena

Structural properties of nuclei with semi-magic number N(Z)=40

NUCLEAR STRUCTURE ⁵⁶S, ⁵⁸Ar, ⁶⁰Ca, ⁶²Ti, ⁶⁴Cr, ⁶⁶Fe, ⁶⁸Ni, ⁷⁰Zn, ⁷²Ge, ⁷⁴Se, ⁷⁶Kr, ⁷⁸Sr, ⁸⁰Zr, ⁸²Mo, ⁸⁴Ru, ⁸⁶Pd, ^{78,80,82,84,86,88,90,92,94,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124}Zr; calculated binding energies, deformation parameters.

doi: 10.1142/S0218301321500701
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2021SH38      Nucl.Phys. A1016, 122318 (2021)

P.K.Sharma, A.Jain, G.Saxena

New modified empirical formulae for favoured and unfavoured α-decay

RADIOACTIVITY ^{305,319,321,331,337}121, ^{294,295,296,298,299,300,301,302,304,306,308,310,311,312,314,316,317,318,320,322,324,326,328,330,331,332,334,336,338,339}122, ³²¹123, ^{300,302,304,306,308,310,312,313,314,316,318,319,320,322,324,326,328,330,332,333,334,336,338}124, ^{291,293,295,297,299,301,303,305,307,309,311,313,315,317,319,321,323,325,327,329,331,333,335,337,339}121, ^{307,309,311,313,315,317,319,321,323,325,327,329,331,333,335,337}122, ^{297,299,301,303,305,307,309,311,313,315,317,319,321,323,325,327,329,331,333,335,337,339}123, ^{301,303,305,307,309,311,313,315,317,319,321,323,325,327,329,331,333,335,337,339}124(α); calculated T_1/2; deduced formulae.

doi: 10.1016/j.nuclphysa.2021.122318
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2021SH43      Hyperfine Interactions 242, 35 (2021)

R.Sharma, A.Jain, S.K.Jain, G.Saxena

Magicity in the nuclei with N = 32 and 34

NUCLEAR STRUCTURE ^46,48Si, ^48,50S, ^50,52Ar, ^52,54Ca, ^54,56Ti, ^56,58Cr, ^58,60Fe, ^60,62Ni, ^62,64Zn, ^64,66Ge, ^66,68Se, ^68,70Kr; analyzed available data; calculated potential energy surfaces, quadrupole deformation parameters, two proton shell gap, isotopic shift using relativistic mean-field (RMF) approach with density-dependent meson-nucleon couplings using DD-ME2 parameter.

doi: 10.1007/s10751-021-01751-5
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2021SI02      Nucl.Phys. A1006, 122066 (2021)

U.K.Singh, R.Sharma, P.K.Sharma, M.Kaushik, S.K.Jain, G.Saxena

Structural properties and α-decay chains of transfermium nuclei (101 ≤ Z ≤ 110)

RADIOACTIVITY ^{235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287}Md, ^{238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288}No, ^{241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289}Lr, ^{243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290}Rf, ^{245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291}Db, ^{248,249,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292}Sg, ^{250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293}Bh, ^{253,254,255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294}Hs, ^{255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295}Mt, ^{255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296}Ds(α), (SF); calculated potential energy surfaces (PESs), occupancies of neutron single particle states, rms α-decay T_1/2, T_1/2. Comparison with available data.

doi: 10.1016/j.nuclphysa.2020.122066
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2020KU26      Int.J.Mod.Phys. E29, 2050068 (2020)

M.Kumawat, G.Saxena, M.Kaushik, S.K.Jain, J.K.Deegwal, M.Aggarwal

Novel feature of doubly bubble nuclei in 50 ≤ Z(N) ≤ 82 region along with magicity and weakly bound structure

NUCLEAR STRUCTURE Z=50-82; calculated the separation energies, s.p. energies, pairing energies, proton and neutron density profiles along with deformations of even-even nuclei using the Relativistic Mean-Field (RMF) approach; deduced central density depletion in both proton and neutron named as doubly bubble nuclei.

doi: 10.1142/S0218301320500688
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2020SI27      Nucl.Phys. A1004, 122035 (2020)

U.K.Singh, P.K.Sharma, M.Kaushik, S.K.Jain, D.T.Akrawy, G.Saxena

Study of decay modes in transfermium isotopes

RADIOACTIVITY ^{245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260}Md, ^{250,251,252,253,254,255,256,257,258,259,260,261,262}No, ^{252,253,254,255,256,257,258,259,260,261,262,263,264,265,266}Lr, ^{253,254,255,256,257,258,259,260,261,262,263,264,265}Rf, ^{255,256,257,258,259,260,261,262,263,264,265,266,267,268,269,270}Db, ^{258,259,260,261,262,263,264,265,266,267,268,269,270,271}Sg, ^{260,261,262,263,264,265,266,267,268,269,270,271,272,273,274}Bh, ^{263,264,265,266,267,268,269,270,271,272,273,274,275,276,277}Hs, ^{266,267,268,269,270,271,272,273,274,275,276,277,278}Mt(EC), (β^-), (α), (SF); calculated T_1/2. Comparison with available data.

doi: 10.1016/j.nuclphysa.2020.122035
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2019AG14      Int.J.Mod.Phys. E28, 1950099 (2019)

M.Aggarwal, M.Kaushik, G.Saxena

High spin states of Zr isotopes around A=80 mass region- study on cold and hot rotating nuclei

NUCLEAR STRUCTURE ^{76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124}Zr; calculated ground state quadrupole deformation, parameters, high-spin states, proton and neutron pairing gaps, moments of inertia.

doi: 10.1142/S021830131950099X
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2019SA02      Phys.Lett. B 788, 1 (2019)

G.Saxena, M.Kumawat, M.Kaushik, S.K.Jain, M.Aggarwal

Bubble structure in magic nuclei

NUCLEAR STRUCTURE ^{12,13,14,15,16,17,18,19,20,21,22,23,24}O, ^{34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70}Ca, ^{48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98}Ni, ^{80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150}Zr, ^{78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126}Sn, ^{178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262}Pb, ²⁵¹Fr, ²⁹⁹Mc, ³⁰²Og, ²²Si, ³⁴Si, ⁴⁶Ar, ⁵⁶S, ⁵⁸Ar, ¹⁸⁴Ce, ³⁴⁷119, ²⁹²120, ³⁴¹Nh; calculated charge and matter densities, single particle levels and depletion fraction (DF) across the periodic chart; deduced that the central depletion is correlated to shell structure and occurs due to unoccupancy in s-orbit (2s, 3s, 4s) and inversion of (2s, 1d) and (3s, 1h) states in nuclei upto Z less or equal to 82. Bubble effect in superheavy region is a signature of the interplay between the Coulomb and nn-interaction where the depletion fraction is found to increase with Z (Coulomb repulsion) and decrease with isospin.

doi: 10.1016/j.physletb.2018.08.076
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2019SA08      Phys.Lett. B 789, 323 (2019)

G.Saxena, M.Kumawat, B.K.Agrawal, M.Aggarwal

Anti-bubble effect of temperature and deformation: A systematic study for nuclei across all mass regions between A=20-300

NUCLEAR STRUCTURE ^22,34Si, ^46,58Ar, ⁵⁶S, ¹⁸⁴Ce, ^294,302Og, ²⁹²120, ²²O, ³⁴Ca, ²⁴Ne, ⁴⁰Mg, ⁴⁴S, ³²Ar; calculated charge and neutron densities as function of temperatures, proton single-particle energies, nuclear charge form factors, depletion fractions, quadrupole deformation parameters, occupation probabilities.

doi: 10.1016/j.physletb.2018.10.062
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2019SA25      Int.J.Mod.Phys. E28, 1950008 (2019)

G.Saxena, M.Kumawat, S.Somorendro Singh, M.Aggarwal

Structural properties and decay modes of Z = 122, 120 and 118 superheavy nuclei

NUCLEAR STRUCTURE ^{284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299}Og, ^{290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305}120, ^{298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313,314}122; calculated neutron and charge densities, ground state properties viz. binding energies, charge, proton, neutron, matter radii.

RADIOACTIVITY ^{272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288}Cn, ^{276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292}Fl, ^{280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296}Lv, ^{284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300}Og, ^{288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304}120, ^{292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308}122(α); calculated T_1/2. Comparison with available data.

doi: 10.1142/S0218301319500083
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2019SA45      J.Phys.(London) G46, 065105 (2019)

G.Saxena, M.Kumawat, B.K.Agrawal, M.Aggarwal

A systematic study of the factors affecting central depletion in nuclei

NUCLEAR STRUCTURE ³⁰Ne, ³²Mg, ³⁴Si, ⁴⁶Ar, ⁵⁶S, ⁵⁸Ar; calculated bubble parameters, proton single-particle energies, binding energies.

doi: 10.1088/1361-6471/ab0853
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2019SA50      Hyperfine Interactions 240, 74 (2019)

G.Saxena, M.Kumawat, B.K.Agrawal, M.Aggarwal

Effect of quadrupole deformation and temperature on bubble structure in N=14 nuclei

NUCLEAR STRUCTURE ²⁴Ne, ³²Ar; calculated quadrupole deformation parameters, proton occupation probability using the relativistic mean-field plus BCS approach using NL3* and PK1 parameters.

doi: 10.1007/s10751-019-1620-9
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2019SA58      Int.J.Mod.Phys. E28, 1950101 (2019)

G.Saxena, M.Kumawat, M.Aggarwal

Search for exotic features in the ground state light nuclei with 10≤Z≤18 from stable valley to drip lines

NUCLEAR STRUCTURE ^{16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52}Ne, ^{18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54}Mg, ^{20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56}Si, ^{22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58}S, ^{24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60}Ar; calculated two neutron separation energy, charge and neutron radii, neutron density and skin, charge form factor, deformation parameters, potential energy surface as a function of the deformation parameter, ground state properties.

doi: 10.1142/S0218301319501015
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2018AG06      Int.J.Mod.Phys. E27, 1850062 (2018)

M.Aggarwal, G.Saxena

Persistence of magicity in neutron-rich exotic ⁷⁸Ni in ground as well as excited states

NUCLEAR STRUCTURE ⁷⁰Ca, ⁷²Ti, ⁷⁴Cr, ⁷⁶Fe, ⁷⁸Ni; calculated charge distribution along with radius, pairing energy contributions from protons and neutrons, neutron and proton single-particle energies for Ni isotopes, two-neutron shell gaps, level density parameter versus mass number A for Ni isotopes at different temperatures, entropy versus mass number A for Ni isotopes at different temperatures, rotational states. Comparison with available data.

doi: 10.1142/S0218301318500623
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2018KU17      Can.J.Phys. 96, 1413 (2018)

M.Kumawat, G.Saxena, M.Kaushik, R.Sharma, S.K.Jain

Description of nuclei with magic number Z (N) = 6

NUCLEAR STRUCTURE Z=6, N=6; calculated ground state properties of entire chains of isotopes (isotones) with Z (N) = 6 including even and odd mass nuclei using relativistic mean-field plus BCS, including quadrupole deformation, binding energy, separation energy, single particle energy, root mean squared radii, along with charge and neutron density profile. Comparison with available data.

doi: 10.1139/cjp-2017-1013
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2018SA44      Int.J.Mod.Phys. E27, 1850074 (2018)

G.Saxena, U.K.Singh, M.Kumawat, M.Kaushik, S.K.Jain, M.Aggarwal

Distinct ground state features and the decay chains of Z=121 superheavy nuclei

NUCLEAR STRUCTURE Z=121; calculated separation energies, shell corrections, deformation parameters, radial variation of charge density and neutron density using RMF+BCS approach.

RADIOACTIVITY ^{293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312}121(α); calculated Q-values, T_1/2. Comparison with available data.

doi: 10.1142/S021830131850074X
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2017SA09      Acta Phys.Pol. B48, 309 (2017)

G.Saxena, M.Kaushik

Study of N = 16 Shell Closure Within RMF+BCS Approach

NUCLEAR STRUCTURE ²²C, ²⁴O, ²⁶Ne, ²⁸Mg, ³⁰Si, ³²S, ³⁴Ar, ³⁶Ca; calculated low-lying sp levels, J, π for N=16 isotones vs Z using RMF+BCS approach; deduced shell gap development. ^{10,12,14,16,18,20,22,24}C, ^{12,14,16,18,20,22,24,26}O; calculated pairing energy, two neutron shell gap using BCS+RMF(TMA) approach.

doi: 10.5506/APhysPolB.48.309
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2017SA33      Phys.Atomic Nuclei 80, 211 (2017)

G.Saxena, M.Kaushik

Ground-state properties of neutron magic nuclei

doi: 10.1134/s1063778817020259
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2017SA46      Chin.J.Phys.(Taiwan) 55, 1149 (2017)

G.Saxena, M.Kaushik

Behaviour of the pf shell under the RMF+BCS description

NUCLEAR STRUCTURE ^52,60Ca, ⁴⁸Si, ^84,116Se; calculated two neutron shell gaps, neutron single particle states, occupancy, quadrupole deformation parameters; deduced magicity. RMF+BCS approach.

doi: 10.1016/j.cjph.2017.03.022
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2017SA69      Int.J.Mod.Phys. E26, 1750072 (2017)

G.Saxena, M.Kumawat, M.Kaushik, U.K.Singh, S.K.Jain, S.Somorendro Singh, M.Aggarwal

Implications of occupancy of 2_s1/2 state in sd-shell within RMF+BCS approach

NUCLEAR STRUCTURE ²²C, ^22,24O, ^34,36Ca, ²⁶S, ³⁶S, ⁵⁶S, ^22,34,48Si; calculated quadrupole deformation parameters, neutron single particle states, neutron density. Comparison with available data.

doi: 10.1142/S0218301317500720
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2017SA70      Phys.Lett. B 775, 126 (2017)

G.Saxena, M.Kumawat, M.Kaushik, S.K.Jain, M.Aggarwal

Two-proton radioactivity with 2p halo in light mass nuclei A = 18-34

NUCLEAR STRUCTURE ¹⁹Mg, ²²Si, ²⁶S, ³⁰Ar, ³⁴Ca; calculated variation of charge density, charge radii, RMF potential energy, centrifugal barrier energy for proton resonant states; deduced 2-proton halo.

doi: 10.1016/j.physletb.2017.10.055
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2015KA35      Phys.Part. and Nucl.Lett. 24, 516 (2015)

M.Kaushik, G.Saxena

High-spin structure of ⁸⁰Kr

NUCLEAR STRUCTURE ⁸⁰Kr; calculated energy levels, J, π, high-spin states, deformation parameters; deduced prolate deformation. Fully self-consistent cranked HFB approach.

doi: 10.1134/S1547477115040184
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2014SA13      Rom.J.Phys. 59, 86 (2014)

G.Saxena, D.Singh, M.Kaushik

Weakly Bound Neutron Rich C Isotopes within RMF+BCS Approach

NUCLEAR STRUCTURE ^{10,12,14,16,18,20,22}C; calculated neutron single-particle energies, occupancy, neutron density, RMF potential energy sum, binding and two-neutron separation energies, neutron radii. Relativistic Mean Field calculations, comparison with available data.

2013SA25      Int.J.Mod.Phys. E22, 1350025 (2013); Erratum Int.J.Mod.Phys. E22, 1392002 (2013)

G.Saxena, D.Singh

Study of neutron magic drip-line nuclei within relativistic mean-field plus BCS approach

NUCLEAR STRUCTURE ⁴⁶Fe, ⁵⁸Zn, ⁹⁶Pd, ¹⁵⁴Hf, ²²⁰Pu; calculated two proton separation energy, proton single particle energy and occupancy, RMF potential energy plots (sum of the scalar and vector potentials). Comparison with available data.

doi: 10.1142/S0218301313500250
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2013SA26      J.Exper.Theo.Phys. 116, 567 (2013)

G.Saxena, D. Singh

Shell Closures, Loosely Bound Structures, and Halos in Exotic Nuclei

NUCLEAR STRUCTURE Z=6, 14, 16, 34;N=6, 14, 16, 34, 40, 70, 112; calculated single-particle spectrum, pairing energies, and densities of the nuclei; deduced shell closure. Relativistic mean-field (RMF) plus state-dependent BCS approach, comparison with available data.

doi: 10.1134/S1063776113040092
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2013SA34      Phys.Part. and Nucl.Lett. 10, 220 (2013)

G.Saxena, D.Singh, M.Kaushik

Magicity in Exotic Nuclei

NUCLEAR STRUCTURE ^{34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66}Ca; calculated proton and neutron density distributions, two-neutron separation and neutron single-particle energies. Relativistic mean field (RMF) plus state-dependent BCS approach.

doi: 10.1134/S1547477113030114
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2012SI16      Int.J.Mod.Phys. E21, 1250076 (2012); Erratum Int.J.Mod.Phys. E22, 1392001 (2013)

D.Singh, G.Saxena

Study of two-proton radioactivity within the relativistic mean-field plus BCS approach

RADIOACTIVITY ³⁸Ti, ⁴²Cr, ⁴⁵Fe, ⁴⁸Ni, ⁵⁵Zn, ⁶⁰Ge, ^63,64Se, ⁶⁸Kr, ⁷²Sr, ⁷⁶Zr(2p); calculated one- and two-proton separation energies, quadrupole deformation parameters, pairing gap, radial wave functions and density distributions. Comparison with available data.

doi: 10.1142/S0218301312500760
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1971SA16      Can.J.Phys. 49, 2276 (1971)

G.P.Saxena, C.Vincent

ENDOR of the ⁵⁵Mn²⁺ Ion in MgO and CaO

NUCLEAR MOMENTS ⁵⁵Mn; measured a, b; deduced μ. ENDOR.

doi: 10.1139/p71-275
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Note: The following list of authors and aliases matches the search parameter G.Saxena: , G.P.SAXENA