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NSR database version of April 11, 2024.

Search: Author = H.M.Devaraja

Found 16 matches.

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2023AZ06      Eur.Phys.J. A 59, 278 (2023)

A.K.Azhibekov, S.M.Lukyanov, A.V.Shakhov, Yu.E.Penionzhkevich, M.A.Naumenko, H.M.Devaraja, E.K.Almanbetova, B.A.Urazbekov, A.Yu.Bodrov, E.V.Mardyban, A.Bahini, K.Mendibayev

Neutron transfer in the 48Ca + 197Au reaction

NUCLEAR REACTIONS 197Au(48Ca, X)192Au/194Au/196Au/198Au, E=300 MeV; measured reaction products, Eγ, Iγ. 48Ca, 197Au; deduced energies of upper single-particle neutron levels, probability density for neutron during a grazing collision, parameters, decay curves, T1/2, σ. Comparison with available data. The U-400 cyclotron at the Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research (FLNR, JINR).

doi: 10.1140/epja/s10050-023-01192-4
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2023IS03      Phys.Lett. B 843, 138008 (2023)

A.V.Isaev, R.S.Mukhin, A.V.Andreev, Z.Asfari, M.L.Chelnokov, V.I.Chepigin, H.M.Devaraja, O.Dorvaux, B.Gall, K.Hauschild, I.N.Izosimov, A.A.Kuznetsova, A.Lopez-Martens, O.N.Malyshev, A.G.Popeko, Yu.A.Popov, A.Rahmatinejad, B.Sailaubekov, T.M.Shneidman, E.A.Sokol, A.I.Svirikhin, M.S.Tezekbayeva, A.V.Yeremin, N.I.Zamyatin

Structure of the prompt neutron multiplicity distribution in the spontaneous fission of 256Rf

RADIOACTIVITY 256Rf(SF), (α) [from 208Pb(50Ti, X), E=237 MeV];measured fission products, En, In, TOF; deduced neutron multiplicity distribution, alpha decay branching ratio and T1/2. Prompt neutron multiplicity study in the superheavy element region. SHELS separator, U-400 cyclotron, the Flerov laboratory at JINR.

doi: 10.1016/j.physletb.2023.138008
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Data from this article have been entered in the XUNDL database. For more information, click here.


2023MU03      Eur.Phys.J. A 59, 21 (2023)

G.Munzenberg, M.Gupta, H.M.Devaraja, Y.K.Gambhir, S.Heinz, S.Hofmann

Heavy and superheavy elements: next generation experiments, ideas and considerations

doi: 10.1140/epja/s10050-023-00939-3
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2022DE35      Phys.Part. and Nucl.Lett. 19, 693 (2022)

H.M.Devaraja, A.V.Yeremin, S.Heinz, A.G.Popeko

The Study of Multi-Nucleon Transfer Reactions for Synthesis of New Heavy and Superheavy Nuclei

NUCLEAR REACTIONS 232Th(18O, X)18C/20N/22O, 232Th(22Ne, X)23F/24F/25Ne/26Ne/21N/23O/24O/25F, 232Th(40Ar, X)29Mg/30Mg/31Al/32Al/33Al/33Si/34Si/35Si/36Si/39S/40S/41Cl/42Cl, 238U(40Ar, X)37Si/40P/41S/42S, 238U(40Ar, X)54Ti/56V/58Cr/59Cr/61Mn/63Fe/64Fe, 238U(56Fe, X)52Sc/53Sc/56Ti/57V/58V/60Cr/55Ti, Ta, W(136Xe, X)181Lu/182Lu/183Lu/179Yb, W(76Ge, X)62Mn/63Mn/71Cu/72Cu/73Cu/66Co/67Co, Ta, W(238U, X)232Ac/234Ac, Ta, W(186W, X)180Yb/184Lu/177Tm, W(136Xe, X)172Ho, W(208Pb, X)205Au, W(176Yb, X)174Er/171Ho, W(170Er, X)169Dy, 254Es(18O, X)260Md, 244Pu(136Xe, X)243Np/244Np, 70Zn(18O, X)68Ni, 70Zn(14C, X)69Ni, 198Pt(18O, X)199Ir, Pb(12C, X)208Hg, U(18O, X)239Pa, Pb(18O, X)209Hg, W(18O, X)186Hf, U(18O, X)238Th, E<1 GeV; analyzed available data on multi-nucleon transfer (MNT) reactions; deduced the application of multi-nucleon transfer reactions to produce new heavy and superheavy isotopes, modernization of U400 cyclotron (U400R).

doi: 10.1134/S1547477122060085
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2022HE10      Eur.Phys.J. A 58, 114 (2022)

S.Heinz, H.M.Devaraja

Nucleosynthesis in multinucleon transfer reactions

NUCLEAR REACTIONS 209Bi(136Xe, X), E=1130 MeV; 207Pb(64Ni, X), E=4.8-5.92 MeV/nucleon; U(U, X), E(cm)=875 MeV; analyzed available data; deduced the revival of multinucleon transfer reactions to progress toward the neutron-rich side of heavy and superheavy nuclei.

doi: 10.1140/epja/s10050-022-00771-1
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2022IS05      Eur.Phys.J. A 58, 108 (2022)

A.V.Isaev, R.S.Mukhin, A.V.Andreev, M.A.Bychkov, M.L.Chelnokov, V.I.Chepigin, H.M.Devaraja, O.Dorvaux, M.Forge, B.Gall, K.Hauschild, I.N.Izosimov, K.Kessaci, A.A.Kuznetsova, A.Lopez-Martens, O.N.Malyshev, A.G.Popeko, Yu.A.Popov, A.Rahmatinejad, B.Sailaubekov, T.M.Shneidman, E.A.Sokol, A.I.Svirikhin, D.A.Testov, M.S.Tezekbayeva, A.V.Yeremin, N.I.Zamyatin, K.Sh.Zhumadilov

Prompt neutron emission in the spontaneous fission of 246Fm

RADIOACTIVITY 246Fm(SF) [from 208Pb(40Ar, X), E=183 MeV]; measured decay products, En, In; deduced neutron yields, nubar, spontaneous fission branching ratio, T1/2. Tikhonov method of statistical regularisation. FLNR JINR using the SHELS separator and the SFiNx detection system, the U-400 cyclotron.

doi: 10.1140/epja/s10050-022-00761-3
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41751. Data from this article have been entered in the XUNDL database. For more information, click here.


2020DE36      Eur.Phys.J. A 56, 224 (2020)

H.M.Devaraja, S.Heinz, D.Ackermann, T.Gobel, F.P.Hessberger, S.Hofmann, J.Maurer, G.Munzenberg, A.G.Popeko, A.V.Yeremin

New studies and a short review of heavy neutron-rich transfer products

NUCLEAR REACTIONS 238U(48Ca, X), E=233.3 MeV; measured reaction products, Eγ, Iγ. 207,208,209,210Tl, 211,212,213,214Pb, 211,212,213,214Bi, 213,214,215,216,217,218Po, 213,214,215,216,217At, 213Rn, 217,218,219,220,221,222Rn, 214Fr, 219Fr, 221Fr, 215Ra, 220,221,222,223,224Ra, 216Ac, 221Ac, 223Ac, 225,226,227,228,229Ac, 223,224Th, 226Th, 231,233Th, 232,234,236Pa, 237,238Pa, 230U, 237U, 239U, 238,239,240,241,242Np; deduced isotopic distributions, production σ.

doi: 10.1140/epja/s10050-020-00229-2
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2020KA43      Phys.Rev. C 102, 024612 (2020)

Sh.A.Kalandarov, G.G.Adamian, N.V.Antonenko, H.M.Devaraja, S.Heinz

Production of neutron deficient isotopes in the multinucleon transfer reaction 48Ca(Elab = 5.63 MeV / nucleon) + 248Cm

NUCLEAR REACTIONS 248Cm(48Ca, X), E=5.63 MeV/nucleon; calculated production cross sections of primary and secondary fragments produced in multinucleon transfer reaction, and excitation energies of primary products using dinuclear system (DNS) model. Comparison with experimental data from SHIP separator at GSI.

doi: 10.1103/PhysRevC.102.024612
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2020NO09      Phys.Rev. C 102, 044605 (2020)

K.V.Novikov, E.M.Kozulin, G.N.Knyazheva, I.M.Itkis, M.G.Itkis, A.A.Bogachev, I.N.Diatlov, M.Cheralu, D.Kumar, N.I.Kozulina, A.N.Pan, I.V.Pchelintsev, I.V.Vorobiev, W.H.Trzaska, S.Heinz, H.M.Devaraja, B.Lommel, E.Vardaci, S.Spinosa, A.Di Nitto, A.Pulcini, S.V.Khlebnikov, P.P.Singh, Ru.N.Sahoo, B.Gall, Z.Asfari, C.Borcea, I.Harca, D.M.Filipescu

Investigation of fusion probabilities in the reactions with 52, 54Cr, 64Ni, and 68Zn ions leading to the formation of Z = 120 superheavy composite systems

NUCLEAR REACTIONS 248Cm(52Cr, X)300120*, E=290, 304-MeV; 248Cm(54Cr, X)302120*, E=296 MeV; 232Th(68Zn, X)300120*, E=335 MeV; measured binary reaction products in coincidence by the double-arm time-of-flight spectrometer CORSET, the first two reactions using 248Cm target at the U-400 cyclotron facility of FLNR-Dubna, and the experiment with 232Th target at the University of Jyvaskyla K-130 cyclotron facility; deduced yield and TKE matrices of binary fragments as functions of mass and energy, capture cross sections as a function of effective fissility parameter, excitation energy of primary fragments as function of fragment mass, contributions of symmetric fragments to the capture cross sections, fusion probability as function of the mean fissility parameter, and production σ for the formation of Z=120 superheavy nucleus (SHN). 238U(64Ni, X)302120*, E=335 MeV; compared results of this experiment, reported in 2010Ko16, at Jyvaskyla with the data in the present experiments. 248Cm(54Cr, X) reaction determined to be the most favorable for the production of Z=120 element.

doi: 10.1103/PhysRevC.102.044605
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2019DE11      Eur.Phys.J. A 55, 25 (2019)

H.M.Devaraja, S.Heinz, O.Beliuskina, S.Hofmann, C.Hornung, G.Munzenberg, D.Ackermann, M.Gupta, Y.K.Gambhir, R.A.Henderson, F.P.Hessberger, A.V.Yeremin, B.Kindler, B.Lommel, J.Maurer, K.J.Moody, K.Nishio, A.G.Popeko, M.A.Stoyer, D.A.Shaughnessy

Population of nuclides with A ≥ 98 in multi-nucleon transfer reactions of 48Ca + 248Cm

NUCLEAR REACTIONS 248Cm(48Ca, x), E=265.4, 270.2 MeV; measured production σ for directly populated nuclei 252,254Cf, 254m,256mEs and 260No[the last reaction used was 18O+254Es at 99 MeV] and for 254,256Fm from parent decay using SHIP selector to select the fusion products and (in another run) target-like transfer reaction products, Compared with published data.

RADIOACTIVITY 252,254,256Cf, 256Fm, 256,257,259,260Md, 259No, 262,263Lr(SF), (α); calculated T1/2, SF branching ratio.

doi: 10.1140/epja/i2019-12696-3
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD8038.


2018DE38      Rom.J.Phys. 63, 304 (2018)

H.M.Devaraja, Y.K.Gambhir, A.Bhagwat, M.Gupta, S.Heinz, G.Munzenberg

Half Lives and Q Values of Nuclei Appearing in the α-Decay Chains of Recently Reported New Isotopes

NUCLEAR STRUCTURE 207,208,213Fr, 208Ra; calculated charge radii. Comparison with experimental values.

RADIOACTIVITY 233Bk, 223,229Am, 219,225Np, 215,221Pa, 211,217Ac, 207,208,213Fr, 216U, 212Th(α); calculated Q-values, T1/2. Comparison with experimental data.


2017BE05      Eur.Phys.J. A 53, 32 (2017)

O.Beliuskina, A.O.Strekalovsky, A.A.Aleksandrov, I.A.Aleksandrova, H.M.Devaraja, C.Heinz, S.Heinz, S.Hofmann, S.Ilich, N.Imai, D.V.Kamanin, M.Kis, G.N.Knyazheva, C.Kozhuharov, E.A.Kuznetsova, J.Maurer, G.V.Mishinsky, M.Pomorski, Yu.V.Pyatkov, O.V.Strekalovsky, M.Trager, V.E.Zhuchko

Pulse-height defect in single-crystal CVD diamond detectors

doi: 10.1140/epja/i2017-12223-8
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2016DE08      Phys.Rev. C 93, 034621 (2016)

H.M.Devaraja, Y.K.Gambhir, M.Gupta, G.Munzenberg

Systematics of production cross sections and predictions for the synthesis of new superheavy elements

NUCLEAR REACTIONS 244Pu(48Ca, 4n)288Fl, 238U(48Ca, 3n)283Cn, 238U(48Ca, 4n)282Cn, 242Pu(48Ca, 3n)287Fl, 242Pu(48Ca, 4n)286Fl, 244Pu(48Ca, 3n)289Fl, 244Pu(48Ca, 4n)288Fl, 243Am(48Ca, 3n)288Mc, 243Am(48Ca, 4n)287Mc, 245Cm(48Ca, 3n)290Lv, 245Cm(48Ca, 4n)289Lv, 248Cm(48Ca, 3n)293Lv, 248Cm(48Ca, 4n)292Lv, 249Bk(48Ca, 3n)294Ts, 249Bk(48Ca, 4n)293Ts, 249Cf(48Ca, 3n)294Og, 249Cf(48Ca, 4n)293Og, 238U(30Si, 4n)264Sg, 238U(30Si, 5n)263Sg, 238U(30Si, 6n)262Sg, 244Pu(22Ne, 4n)262Rf, 244Pu(22Ne, 5n)261Rf, 248Cm(22Ne, 4n)266Sg, 248Cm(22Ne, 5n)265Sg, E*=30-70 MeV; calculated evaporation residue cross sections as function of the excitation energy of the compound nucleus. 238U(16O, 4n)250Fm, 238U(16O, 5n)249Fm, 238U(16O, 6n)248Fm, 248Cm(18O, 5n)261Rf, 238U(18O, 4n)252Fm, 238U(18O, 5n)251Fm, 238U(18O, 6n)250Fm, 238U(20O, 4n)254Fm, 238U(20O, 5n)253Fm, 238U(20O, 6n)252Fm, 238U(22O, 4n)256Fm, 238U(22O, 5n)255Fm, 238U(22O, 6n)254Fm, 250Cm(48Ca, 3n)295Lv, 250Cm(48Ca, 4n)294Lv, 250Cm(48Ca, 5n)293Lv, 249Cf(48Ca, 3n)294Og, 249Cf(48Ca, 4n)293Og, 250Cf(48Ca, 3n)295Og, 250Cf(48Ca, 4n)294Og, 250Cf(48Ca, 5n)293Og, 251Cf(48Ca, 3n)296Og, 251Cf(48Ca, 4n)295Og, 251Cf(48Ca, 5n)294Og, 252Cf(48Ca, 3n)297Og, 252Cf(48Ca, 4n)296Og, 252Cf(48Ca, 5n)295Og, 252Es(48Ca, 3n)297119, 252Es(48Ca, 4n)296119, 252Es(48Ca, 5n)295119, 254Es(48Ca, 3n)299119, 254Es(48Ca, 4n)298119, 254Es(48Ca, 5n)297119, 257Fm(48Ca, 3n)302120, 257Fm(48Ca, 4n)301120, 257Fm(48Ca, 5n)300120, E*=30-75 MeV; calculated excitation functions or production cross sections as function of excitation energy of the compound nucleus. Calculations based on conventional fusion-fission process using heavy-ion vaporization HIVAP code. Comparison with available experimental data for superheavy nuclides. Relevance to synthesis of SHE in hot fusion reactions.

doi: 10.1103/PhysRevC.93.034621
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2016HE13      Eur.Phys.J. A 52, 278 (2016)

S.Heinz, H.M.Devaraja, O.Beliuskina, V.Comas, S.Hofmann, C.Hornung, G.Munzenberg, D.Ackermann, M.Gupta, R.A.Henderson, F.P.Hessberger, B.Kindler, B.Lommel, R.Mann, J.Maurer, K.J.Moody, K.Nishio, A.G.Popeko, D.A.Shaughnessy, M.A.Stoyer, A.V.Yeremin

Synthesis of new transuranium isotopes in multinucleon transfer reactions using a velocity filter

NUCLEAR REACTIONS 248Cm(48Ca, x), E=5.3 MeV/nucleon; measured Eα, Iα, 225Pa velocity spectrum; deduced, identified 90 known isotopes and 5 new ones (3 produced directly in the reaction, 2 via precursor decays), their production σ.

doi: 10.1140/epja/i2016-16278-7
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2015DE22      Phys.Lett. B 748, 199 (2015)

H.M.Devaraja, S.Heinz, O.Beliuskina, V.Comas, S.Hofmann, C.Hornung, G.Munzenberg, K.Nishio, D.Ackermann, Y.K.Gambhir, M.Gupta, R.A.Henderson, F.P.Hessberger, J.Khuyagbaatar, B.Kindler, B.Lommel, K.J.Moody, J.Maurer, R.Mann, A.G.Popeko, D.A.Shaughnessy, M.A.Stoyer, A.V.Yeremin

Observation of new neutron-deficient isotopes with Z≥92 in multinucleon transfer reactions

NUCLEAR REACTIONS 248Cm(48Ca, X)216U/212Th/208Fr/219Np/223Am/215Pa/211Ac/207Fr/229Am/225Np/213Fr/233Bk/225Np, E=270 MeV; measured reaction fragments, Eα, Iα; deduced five new isotopes σ, T1/2. Comparison with available data.

doi: 10.1016/j.physletb.2015.07.006
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2015HE30      Eur.Phys.J. A 51, 140 (2015)

S.Heinz, O.Beliuskina, V.Comas, H.M.Devaraja, C.Heinz, S.Hofmann, E.Kozulin, F.Morherr, G.Munzenberg, D.Ackermann, F.P.Hessberger, B.Kindler, B.Lommel, R.Mann, J.Maurer

Nuclear molecule formation and time delay in collisions of nuclei with Z1 + Z2 ≥ 110

NUCLEAR REACTIONS 207Pb(64Ni, x), E=4.85-5.92 MeV/nucleon;208Pb(132Xe, αx), (132Xe, x), E=6.1 MeV/nucleon; measured reaction fragments using SHIP velocity filter, Eα, Iα. Po, At, Rn, Fr, Ra deduced velocity spectra, σ(θ), TKE, quadrupole deformation, nuclear molecule lifetime. 238U(238U, x), E=6.09, 6.29, 6.91, 7.10, 7.35 MeV/nucleon; measured reaction fragments using VAMOS spectrometer; deduced TKE, interaction lifetime vs mass number, σ vs mass number, quadrupole deformation; calculated σ vs mass number, quadrupole deformation.

doi: 10.1140/epja/i2015-15140-x
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