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NSR database version of April 27, 2024.

Search: Author = Hemdeep

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2022CH43      Phys.Rev. C 106, L031601 (2022)

S.Chopra, N.Goel, M.K.Sharma, P.O.Hess, Hemdeep

Theoretical attempt to predict the cross sections in the case of new superheavy elements

NUCLEAR REACTIONS ²⁴⁸Cm(⁵⁴Cr, X), (⁵⁴Cr, n), (⁵⁴Cr, 2n), (⁵⁴Cr, 3n), (⁵⁴Cr, 4n), ²⁴⁵Cm(⁴⁸Ca, X), (⁴⁸Ca, n), (⁴⁸Ca, 2n), (⁴⁸Ca, 3n), (⁴⁸Ca, 4n), ²⁴⁹Cf(⁴⁸Ca, X), (⁴⁸Ca, n), (⁴⁸Ca, 2n), (⁴⁸Ca, 3n), (⁴⁸Ca, 4n), E(cm)=33, 193.561 MeV; calculated σ, survival probability for ²⁹⁷Og, ²⁹³Lv compound nucleus. Dynamical cluster-decay model (DCM) calculations. Comparison to available experimental data.

doi: 10.1103/PhysRevC.106.L031601
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2021CH28      Phys.Rev. C 103, 064615 (2021)

S.Chopra, M.K.Sharma, P.O.Hess, Hemdeep, NeetuMaan

Impact of noncoplanar degrees of freedom on quasifission contributions with the estimation of unobserved decay channels for the study of ¹⁹⁶Pt^* using the dynamical cluster-decay model

NUCLEAR REACTIONS ¹³²Sn(⁶⁴Ni, X)¹⁹⁶Pt^*, E(cm)=165.5, 167.2, 171, 175.2, 183.7, 195.2 MeV; calculated l-dependent scattering potential for ¹⁹⁵Pt+1n in the decay of ¹⁹⁶Pt^* for 167.2 MeV, evaporation residues (ERs) and fusion-fission cross sections, mass fragmentation potential and preformation probability at 195.2 MeV using dynamical cluster-decay model (DCM). Comparison with available experimental data.

doi: 10.1103/PhysRevC.103.064615
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2018CH53      Phys.Rev. C 98, 041603 (2018)

S.Chopra, Hemdeep, P.Kaushal, R.K.Gupta

Signatures of higher-multipole deformations and non-coplanarity as essential, additional degrees-of-freedom in heavy-ion reactions

NUCLEAR REACTIONS ⁶⁴Ni(¹³²Sn, X)¹⁹⁶Pt^*, E^*=55-90 MeV; ⁹³Nb(¹²C, X)¹⁰⁵Ag^*, E^*=40-60 MeV; ¹⁰⁰Mo(⁶⁴Ni, X)¹⁶⁴Yb^*, E^*=25-70 MeV; ²³⁵U(¹¹B, X)²⁴⁶Bk^*, E^*=47.5-72.5 MeV; ¹⁷²Yb(⁴⁸Ca, X)²²⁰Th^*, E^*=35-45 MeV; ¹⁵⁴Gd(⁴⁸Ca, X)²⁰²Po^*, E^*=41-54 MeV; ¹⁸⁰Hf(⁴⁰Ar, X)²²⁰Th^*, E^*=36-46 MeV; ¹³⁸Ba(⁸²Se, X)²²⁰Th^*, E^*=35-45 MeV; ²³²Th(¹⁴N, X)²⁴⁶Bk^*, E^*=43-61 MeV; calculated compound and non-compound nucleus σ(E) for three deformations β₂, β₃ and β₄ and non-coplanarity using dynamical cluster-decay model. Comparison with experimental values; deduced that higher-multipole deformations together with non-coplanar configurations are important for analysis of a compound nucleus fusion reaction.

doi: 10.1103/PhysRevC.98.041603
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2018HE10      Phys.Rev. C 97, 044623 (2018)

Hemdeep, S.Chopra, A.Kaur, P.Kaushal, R.K.Gupta

Role of higher-multipole deformations and noncoplanarity in the decay of the compound nucleus ²²⁰Th^* within the dynamical cluster-decay model

NUCLEAR REACTIONS ¹⁸⁰Hf(⁴⁰Ar, X)²²⁰Th*, E=35.637.41.37, 46.73 MeV; ¹⁷²Yb(⁴⁸Ca, X)²²⁰Th*, E=35.4, 39.9, 46.2 MeV; ¹³⁸Ba(⁸²Se, X)²²⁰Th*, E=34.47, 39.47, 44.47 MeV; ²⁰⁴Pb(¹⁶O, X)²²⁰Th*, E=39-46.75 MeV; calculated fragmentation potential V(A), preformation yields, σ for 1n to 5n decay channels, and best-fitted neck-length parameter of compound nucleus (CN) ²²⁰Th; deduced role of octupole (β₃) and hexadecupole (β₄) deformations with corresponding compact orientations for both coplanar and noncoplanar configurations in decay of ²²⁰Th compound nucleus. Dynamical cluster-decay model (DCM) based on the quantum mechanical fragmentation theory (QMFT). Comparison with experimental values.

doi: 10.1103/PhysRevC.97.044623
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2018KA05      Nucl.Phys. A969, 184 (2018)

A.Kaur, P.Kaushal, Hemdeep, R.K.Gupta

Decay analysis of compound nuclei formed in reactions with exotic neutron-rich ⁹Li projectile and the synthesis of ²¹⁷At^* within the dynamical cluster-decay model

NUCLEAR REACTIONS ²⁰⁸Pb(⁹Li, γ), E=24.84-42.38 MeV;²⁰⁹Pb(⁹Li, γ);²⁷Al, ⁶⁷Cu, ⁷⁰Zn, ¹²⁰Sn, ²⁰⁸Pb(⁹Li, γ), (⁹Li, xn), E=29.86 MeV;^{61,63,65,67,73,77,79,80}Cu, ^{70,74,78,80,82}Zn(⁹Li, γ), E(cm)=26.0-26.9 MeV, E=15 MeV; calculated halo nucleus induced fusion σ, evaporation residue σ using (DCM Dynamical Cluster decay Model). Compared with published data.

doi: 10.1016/j.nuclphysa.2017.10.006
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2018KA28      Phys.Rev. C 98, 014602 (2018)

P.Kaushal, A.Kaur, Hemdeep, S.Chopra, R.K.Gupta

⁴⁸Ca-induced reaction on the lanthanide target ¹⁵⁴Gd and its decay to ground and metastable states within the dynamical cluster-decay model

NUCLEAR REACTIONS ¹⁵⁴Gd(⁴⁸Ca, xn)²⁰²Po^*, E^*=41.03-53.61 MeV; calculated scattering and fragmentation potentials, preformation and penetration probabilities, σ(E) for 1n to 5n channels, and for evaporation residues. ^{197m,198,199m}Po; investigated decay of ²⁰²Po compound nucleus to ¹⁹⁸Po g.s. and to ^197,199Po metastable states by neutron evaporation channels. Quantum mechanical fragmentation theory (QMFT) based dynamical cluster-decay model (DCM). Comparison with available experimental data, and with other theoretical predictions.

doi: 10.1103/PhysRevC.98.014602
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2017CH21      Phys.Rev. C 95, 044603 (2017)

S.Chopra, Hemdeep, R.K.Gupta

Synthesis of the Z=122 superheavy nucleus via ⁵⁸Fe- and ⁶⁴Ni-induced reactions using the dynamical cluster-decay model

NUCLEAR REACTIONS ²⁴⁸Cm(⁵⁸Fe, xn)³⁰⁶122*, E*=25-68 MeV; ²⁴²Pu(⁶⁴Ni, xn)³⁰⁶122*, E*=25-68 MeV; calculated σ(E*) for 1n-, 2n-, 3n- and 4n-channels, evaporation residue (ER) σ, compound nucleus formation probability, fragmentation potentials, preformation probabilities as function of fragment mass in hot fusion reactions. Dynamical cluster-decay model based on dynamical or quantum mechanical fragmentation theory (QMFT), and two-center shell model (TCSM).

doi: 10.1103/PhysRevC.95.044603
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2017HE03      Phys.Rev. C 95, 014609 (2017)

Hemdeep, S.Chopra, A.Kaur, R.K.Gupta

Formation and decay of the compound nucleus ²²⁰Th^* within the dynamical cluster-decay model

NUCLEAR REACTIONS ¹⁷²Yb(⁴⁸Ca, X)²²⁰Th*, ²⁰⁴Pb(¹⁶O, X)²²⁰Th*, ¹⁹⁴Pt(²⁶Mg, X)²²⁰Th*, ¹⁸⁰Hf(⁴⁰Ar, X)²²⁰Th*, ¹³⁸Ba(⁸²Se, X)²²⁰Th*, ¹³⁴Xe(⁸⁶Kr, X)²²⁰Th*, ¹²⁴Sn(⁹⁶Zr, X)²²⁰Th, E*=39.9, 25-50 MeV; calculated scattering and mass-fragmentation potentials, preformation yields for hot-fusion reactions, evaporation residue, and 1n- to 5n-decay channel cross sections, penetrability versus angular momentum. Dynamical cluster-decay model (DCM) based on quantum-mechanical fragmentation theory (QMFT). Comparison with available experimental data.

doi: 10.1103/PhysRevC.95.014609
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2017KA34      Nucl.Phys. A966, 306 (2017)

A.Kaur, Hemdeep, P.Kaushal, B.R.Behera, R.K.Gupta

Dynamical Cluster-decay Model (DCM) applied to ⁹Li + ²⁰⁸Pb reaction

NUCLEAR REACTIONS ²⁰⁸Pb(⁹Li, x), E(cm)=23.9, 28.5, 33.4, 38.1, 40.6, 43.0 MeV; calculated fusion σ for reaction induced by weakly-bound light heavy ions using DCM (Dynamical Cluster decay Model), fusion-fission σ, CN decay σ vs E(cm), non-compound system decay σ, preformation probability vs l; deduced neck length parameter from the fit to data.

doi: 10.1016/j.nuclphysa.2017.07.016
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2016CH07      Phys.Rev. C 93, 024603 (2016)

S.Chopra, Hemdeep, A.Kaur, R.K.Gupta

Non-coplanar compact configurations of nuclei and non-compound-nucleus contribution in the fusion cross section of the ¹²C + ⁹³Nb reaction

NUCLEAR REACTIONS ⁹³Nb(¹²C, X)¹⁰⁵Ag*, E(cm)=41.097, 47.828, 54.205 MeV; calculated fragmentation potential as function of fragment mass number, preformation probability and penetrability probability as function of angular momentum, σ(E) for evaporation residue (ER) and summed intermediate mass fragments (IMFs) from A=5-13, fusion σ(CN and nCN) for compound and non-compound nuclei; deduced large non-compound-nucleus (nCN) contribution in the measured fusion cross section. Dynamical cluster-decay model (DCM) with various nuclear interaction potentials. Comparison with experimental data.

doi: 10.1103/PhysRevC.93.024603
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2016CH15      Phys.Rev. C 93, 044604 (2016)

S.Chopra, A.Kaur, Hemdeep, R.K.Gupta

Product P_CNP_surv or the "reduced" evaporation residue cross section σ_ER/Σ_fusion for "hot" fusion reactions studied with the dynamical cluster-decay model

NUCLEAR REACTIONS ⁹³Nb(¹²C, X)¹⁰⁵Ag*, E(*)=40.95-54.06 MeV; ⁹²Mo(³²S, X)¹²⁴Ce*, E(*)=46.5 MeV;¹⁰⁰Mo(⁶⁴Ni, X)¹⁶⁴Yb*, E(*)=30.6-66.5 MeV; ¹¹²Sn(⁶⁴Ni, X)¹⁷⁶Pt*, E(*)=22.92-61.42 MeV; ¹¹⁸Sn(⁶⁴Ni, X)¹⁸²Pt*, E(*)=33.215-70.465 MeV; ¹²⁴Sn(⁶⁴Ni, X)¹⁸⁸Pt*, E(*)=44.337-77.487 MeV; ⁶⁴Ni(¹³²Sn, X)¹⁹⁶Pt*, E(*)=54.498-84.2 MeV; ¹⁵⁴Sm(⁴⁸Ca, X)²⁰²Pb*, E(*)=44.5-65.3 MeV; ¹⁹⁴Pt(¹⁹F, X)²¹³Fr*, E(*)=47.397-61.059 MeV; ²⁰⁴Pb(¹¹B, X)²¹⁵Fr*, E(*)=31.21-43.48 MeV; ¹⁹⁷Au(¹⁸O, X)²¹⁵Fr*, E(*)=39.10-56.57 MeV; ¹⁹⁸Pt(¹⁹F, X)²¹⁷Fr*, E(*)=43.479-69.650 MeV; ²³²Th(¹⁴N, X)²⁴⁶Bk*, E(*)=43-60.9 MeV; ²³⁵U(¹¹B, X)²⁴⁶Bk*, E(*)=34.3-55.9 MeV; ²⁴³Am(¹¹B, X)²⁵⁴Fm*, E(*)=42.34-53.822 MeV; ²³⁸U(⁴⁸Ca, X)²⁸⁶Cn*, E(*)=33.1-40.78 MeV; ²⁴⁴Pu(⁴⁸Ca, X)²⁹²Fl*, E(*)=35.51-36.73 MeV; calculated product of fusion probability and survival probability in compound nucleus (CN), σ(ER)/σ(fusion) as function of CN excitation energy. Dynamical cluster-decay model (DCM) for hot fusion reactions using Blocki et al. pocket formula for nuclear proximity potential and the SEDF with SIII and GSkI forces.

doi: 10.1103/PhysRevC.93.044604
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