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NSR database version of April 11, 2024.

Search: Author = M.Kumawat

Found 13 matches.

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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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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 12,13,14,15,16,17,18,19,20,21,22,23,24O, 34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70Ca, 48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98Ni, 80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150Zr, 78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126Sn, 178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259,260,261,262Pb, 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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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 284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299Og, 290,291,292,293,294,295,296,297,298,299,300,301,302,303,304,305120, 298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,313,314122; calculated neutron and charge densities, ground state properties viz. binding energies, charge, proton, neutron, matter radii.

RADIOACTIVITY 272,273,274,275,276,277,278,279,280,281,282,283,284,285,286,287,288Cn, 276,277,278,279,280,281,282,283,284,285,286,287,288,289,290,291,292Fl, 280,281,282,283,284,285,286,287,288,289,290,291,292,293,294,295,296Lv, 284,285,286,287,288,289,290,291,292,293,294,295,296,297,298,299,300Og, 288,289,290,291,292,293,294,295,296,297,298,299,300,301,302,303,304120, 292,293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308122(α); calculated T1/2. Comparison with available data.

doi: 10.1142/S0218301319500083
Citations: PlumX Metrics


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
Citations: PlumX Metrics


2019SA49      Hyperfine Interactions 240, 106 (2019)

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

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

doi: 10.1007/s10751-019-1647-y
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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 16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52Ne, 18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54Mg, 20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56Si, 22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58S, 24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60Ar; 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
Citations: PlumX Metrics


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
Citations: PlumX Metrics


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 293,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312121(α); calculated Q-values, T1/2. Comparison with available data.

doi: 10.1142/S021830131850074X
Citations: PlumX Metrics


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 2s1/2 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
Citations: PlumX Metrics


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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