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NSR database version of April 26, 2024.

Search: Author = B.B.Singh

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2023KA03      Phys.Rev. C 107, 014613 (2023)

S.Kaur, N.Kaur, R.Kaur, B.B.Singh, S.K.Patra

Fusion enhancement within a collective clusterization approach applied to the isotopic chain of neutron-rich light-mass compound nuclei

NUCLEAR REACTIONS ¹²C(¹²C, X)²⁴Mg, ¹²C(¹³C, X)²⁵Mg, ¹²C(¹⁴C, X)²⁶Mg, ¹²C(¹⁵C, X)²⁷Mg, E(cm)=10-15 MeV; calculated fusion σ, fragment mass distribution from Mg compound nucleus fragmentation, fragmentation potential, cluster preformation probability, scattering potential, variation of neck length parameter. Calculations in the framework of dynamical cluster decay model (DCM). Comparison to experimental data.

doi: 10.1103/PhysRevC.107.014613
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2023KA25      Phys.Rev. C 108, 034611 (2023)

R.Kaur, B.B.Singh, M.Kaur, M.K.Sharma, P.P.Singh

Investigating ^{6, 7}Li-induced reactions on ^{235, 238}U through a collective clusterization approach

doi: 10.1103/PhysRevC.108.034611
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2022KA06      Nucl.Phys. A1018, 122361 (2022)

S.Kaur, R.Kaur, B.B.Singh, S.K.Patra

Decay analysis of ^{24, 25}Mg* compound nuclei

NUCLEAR REACTIONS ¹²C(¹²C, X)²⁴Mg, ¹²C(¹³C, X)²⁵Mg, E not given; analyzed available data; deduced preformation probabilities, σ, level density parameters.

doi: 10.1016/j.nuclphysa.2021.122361
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2021KA24      Phys.Rev. C 103, 054608 (2021)

M.Kaur, B.B.Singh, S.K.Patra

Role of microscopic temperature-dependent binding energies in the decay of ³²Si^* formed in the ²⁰O + ¹²C reaction

NUCLEAR REACTIONS ¹²C(²⁰O, X)³²Si^*, E(cm)=7.35, 9.29 MeV; calculated fragmentation potential, mass dependence of fragmentation potential, macroscopic and microscopic binding energies for some isobars of A=10, 14, 18, 22, 26 and 30 at T=0 and 3.09 MeV, preformation probability potentials for the emission of ³H, ⁴He and ⁵He, fusion cross-sections for light-charged particles. Relativistic mean-field (RMF) calculations using quantum mechanical fragmentation-based dynamical cluster-decay model (DCM), and Davidson mass formula.

doi: 10.1103/PhysRevC.103.054608
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2020KA20      Phys.Rev. C 101, 034614 (2020)

R.Kaur, S.Kaur, B.B.Singh, B.S.Sandhu, S.K.Patra

Clustering effects in the exit channels of ^{13, 12}C + ¹²C reactions within the collective clusterization mechanism of the dynamical cluster decay model

NUCLEAR REACTIONS ¹²C(¹²C, X)²⁴Mg^*, (¹²C, ⁶Li), (¹²C, ⁷Li), (¹²C, ⁷Be), (¹²C, ⁸Be), (¹²C, ⁹Be), (¹²C, X)²⁵Mg^*, (¹³C, ⁶Li), (¹³C, ⁷Li), (¹³C, ⁷Be), (¹³C, ⁸Be), (¹³C, ⁹Be), E^*=53.9 MeV; calculated fragmentation potential, fragment preformation probability, l-summed preformation probability, scattering potential, barrier potential, penetration probability, and σ(²⁵Mg^*)/σ(²⁴Mg^*). Dynamical cluster decay model (DCM). Comparison with experimental data, and with other theoretical predictions. Discussed role of α-clustering in heavy-ion reactions.

doi: 10.1103/PhysRevC.101.034614
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2020KA26      Phys.Rev. C 101, 044605 (2020)

R.Kaur, M.Kaur, V.Singh, M.Kaur, B.B.Singh, B.S.Sandhu

Dynamical aspects od ⁴⁸Ti + ⁵⁸Fe, ⁵⁸Ni → ¹⁰⁶Cd^*, ¹⁰⁶Sn reactions at energies near the Coulomb barrier

NUCLEAR REACTIONS ⁵⁸Fe(⁴⁸Ti, X)¹⁰⁶Cd^*,58Ni(⁴⁸Ti, X)¹⁰⁶Sn^*, E=118.06-165.8 MeV; calculated fragmentation and scattering potentials, barrier lowering and neck-length parameters, preformation probabilities, σ(E) as function of light and heavy fragments of the compound nuclei. Dynamical cluster decay model (DCM).

doi: 10.1103/PhysRevC.101.044605
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2019KA05      Phys.Rev. C 99, 014614 (2019)

M.Kaur, B.B.Singh, S.Kaur, R.K.Gupta

N/Z dependence of decay channels in A=80 compound nuclei

NUCLEAR REACTIONS ⁴⁰Ca(⁴⁰Ca, X)⁸⁰Zr^*, E(cm)=62.14 MeV; ⁶⁴Zn(¹⁶O, X)⁸⁰Sr^*, E(cm)=48.0 MeV; ⁴⁸Ca(³²S, X)⁸⁰Kr^*, E(cm)=39.8 MeV; calculated radial scattering potential profiles, fragmentation potential, preformation and penetration probability probabilities as function of fragment mass and angular momentum, fusion σ for emission of light particles, intermediate mass fragments, and symmetric mass fragments. Dynamical cluster-decay model. Comparison with experimental values of fusion σ.

doi: 10.1103/PhysRevC.99.014614
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2018KA02      Nucl.Phys. A969, 14 (2018)

M.Kaur, B.B.Singh, M.K.Sharma, R.K.Gupta

Analysis of intermediate and light mass fragments from composite systems ^26-29Al^* formed in ^{16, 18}O + ^{10, 11}B reactions

NUCLEAR REACTIONS ^10,11B(¹⁶O, x), (¹⁸O, x), E=1-4 MeV/nucleon; calculated fragmentation potential for the composite system, fragment mass distribution, fragment preformation probability using DCM (Dynamical Cluster decay Model) for both spherical and deformed nucleus. Light particle emission σ compared to data.

doi: 10.1016/j.nuclphysa.2017.09.014
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2018KA43      Nucl.Phys. A980, 67 (2018)

M.Kaur, B.B.Singh, M.K.Sharma, R.K.Gupta

Study of α-induced reactions forming A=60 compound systems within dynamical cluster-decay model

doi: 10.1016/j.nuclphysa.2018.09.079
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2018KA53      Phys.Rev. C 98, 064612 (2018)

R.Kaur, M.Kaur, V.Singh, S.Kaur, B.B.Singh, B.S.Sandhu

Investigating the fusion enhancement for neutron-rich mid-mass nuclei using the dynamical cluster-decay model

NUCLEAR REACTIONS ²⁸Si(³⁹K, X)⁶⁷As^*,28Si(⁴⁰K, X)⁶⁸As^*,28Si(⁴¹K, X)⁶⁹As^*,28Si(⁴⁵K, X)⁷³As^*,28Si(⁴⁶K, X)⁷⁴As^*,28Si(⁴⁷K, X)⁷⁵As^*, E(cm)=36.8-42.6 MeV; calculated fragment potentials and l-summed preformation probability as a function of fragment mass number, scattering potentials for the compound nuclei decaying through one-proton and one-neutron channels, barrier lowering as function of incident energy, summed penetration probabilities, fusion σ(E), -summed fragment cross sections using dynamical cluster-decay model (DCM). Comparison with available experimental data.

doi: 10.1103/PhysRevC.98.064612
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2017KA05      Phys.Rev. C 95, 014611 (2017)

M.Kaur, B.B.Singh, S.K.Patra, R.K.Gupta

Clustering effects and decay analysis of the light-mass N=Z and N ≠ Z composite systems formed in heavy ion collisions

NUCLEAR REACTIONS ¹⁰B(¹⁰B, X)²⁰Ne*, E(cm)=12-25 MeV; ¹⁶O(¹²C, X)²⁸Si*, E(cm)=50.14-68.57 MeV; ²⁸Si(¹²C, X)⁴⁰Ca*, E(cm)=53.90 MeV; ¹⁰B(¹¹B, X)²¹Ne*, E(cm)=13.09-26.19 MeV; ¹¹B(¹¹B, X)²²Ne*, E(cm)=12-25 MeV; ¹¹B(²⁸Si, X)³⁹K*, E(cm)=45.94 MeV; ¹²C(²⁷Al, X)³⁹K*, E(cm)=50.53 MeV; calculated preformation and penetration probabilities as function of fragment or cluster mass, scattering and fragment potentials for the decay of α- and non-α conjugate systems, fission-fusion σ(E). Dynamical cluster-decay model (DCM) based on quantum-mechanical fragmentation theory (QMFT). Comparison with experimental data.

doi: 10.1103/PhysRevC.95.014611
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2015KA30      Phys.Rev. C 92, 024623 (2015)

M.Kaur, B.B.Singh, M.K.Sharma, R.K.Gupta

Decay analysis of compound nuclei with masses A ≈ 30-200 formed in reactions involving loosely bound projectiles

NUCLEAR REACTIONS ²⁷Al(⁷Li, X), E(cm)=7.94 MeV; ²⁸Si(⁷Li, X), E(cm)=7.79 MeV; ³²S(⁷Li, X), E(cm)=8.21 MeV; ⁴⁰Ca(⁷Li, X), E(cm)=8.51 MeV; ⁴⁸Ti(⁷Li, X), E(cm)=8.72 MeV; ⁵⁹Co(⁷Li, X), E(cm)=9.88 MeV; ²⁷Al(⁷Be, X), E(cm)=13.50 MeV; ³²S(⁷Be, X), E(cm)=13.99 MeV; ⁴⁰Ca(⁷Be, X), E(cm)=14.47 MeV; ⁴⁸Ti(⁷Be, X), E(cm)=14.84 MeV; ⁵⁸Ni(⁷Be, X), E(cm)=14.99 MeV; ⁶⁵Cu(⁷Be, X), E(cm)=15.35 MeV; ²⁷Al(⁹Be, X), E(cm)=21.00 MeV; ²⁸Si(⁹Be, X), E(cm)=21.19 MeV; ¹²⁴Sn(⁹Be, X), E(cm)=26.18 MeV; ¹⁴⁴Sm(⁹Be, X), E(cm)=26.54 MeV; ¹⁶⁹Tm(⁹Be, X), E(cm)=26.58 MeV; ¹⁸⁷Re(⁹Be, X), E(cm)=26.71 MeV; calculated barrier modification factors, fragmentation potentials for A=1-18 fragments for ⁷Li projectile, A=30-70 for ⁷Be projectile, preformation and penetration probabilities, fusion cross sections. Dynamical cluster-decay model (DCM) for heavy-ion reactions at low energies. Comparison with available experimental data.

doi: 10.1103/PhysRevC.92.024623
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2012SI01      J.Phys.(London) G39, 025101 (2012)

B.B.Singh, M.Bhuyan, S.K.Patra, R.K.Gupta

Optical potential obtained from relativistic-mean-field theory-based microscopic nucleon-nucleon interaction: applied to cluster radioactive decays

RADIOACTIVITY ²²²Ra(¹⁴C), ²³⁰U(²²Ne), ²³¹Pa(²³F), ²³²U(²⁴Ne), ²³⁶Pu(²⁸Mg), ²³⁸Pu(³⁰Mg); calculated WKB penetration probabilities for the M3Y+EX interaction optical model potentials. Comparison with the M3Y+EX NN-interaction potential.

doi: 10.1088/0954-3899/39/2/025101
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2011SI14      Phys.Rev. C 83, 064601 (2011)

B.B.Singh, B.B.Sahu, S.K.Patra

α-decay and fusion phenomena in heavy ion collisions using nucleon-nucleon interactions derived from relativistic mean-field theory

NUCLEAR REACTIONS ²⁰⁸Pb(¹²C, X), E(cm)=55-90 MeV; ²⁰⁸Pb(¹⁶O, X), E(cm)=70-110 meV; calculated barrier energies, fusion cross sections, fusion barrier distribution. Double-folding model for relativistic mean field-3-Yukawa (R3Y) interaction, comparison with Michigan-3-Yukawa (M3Y) effective NN interactions, and with experimental data.

RADIOACTIVITY ²²¹Fr, ^{221,222,223,224,226}Ra, ^223,225Ac, ^226,228,230Th, ^{230,232,233,234,236,238}U, ²³¹Pa, ²³⁷Np, ^236,238Pu, ²⁴¹Am, ²⁴²Cm(α); calculated penetrability. Comparison with experimental data.

doi: 10.1103/PhysRevC.83.064601
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2008SI17      Phys.Rev. C 77, 054613 (2008)

B.B.Singh, M.K.Sharma, R.K.Gupta

Decay of ²⁴⁶Bk^* formed in similar entrance channel reactions of ¹¹B+²³⁵U and ¹⁴N+²³²Th at low energies using the dynamical cluster-decay model

RADIOACTIVITY ²⁴⁶Bk(SF) [from ²³⁵U(¹¹B, X); ²³²Th(¹⁴N, X), E=70.6 MeV]; calculated fission σ, scattering potentials, fragmentation potentials, preformation probabilities, angular momenta. Dynamical cluster decay model.

doi: 10.1103/PhysRevC.77.054613
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2006DH01      Eur.Phys.J. A 27, 33 (2006)

A.Dhal, R.K.Sinha, P.Agarwal, S.Kumar, Monika, B.B.Singh, R.Kumar, P.Bringel, A.Neusser, R.Kumar, K.S.Golda, R.P.Singh, S.Muralithar, N.Madhavan, J.J.Das, A.Shukla, P.K.Raina, K.S.Thind, A.K.Sinha, I.M.Govil, P.K.Joshi, R.K.Bhowmik, A.K.Jain, S.C.Pancholi, L.Chaturvedi

Shape changes at high spin in ⁷⁸Kr

NUCLEAR REACTIONS ⁶³Cu(¹⁹F, 2p2n), E=60 MeV; measured Eγ, Iγ, γγ-coin, DSA. ⁷⁸Kr deduced high spin levels, T_1/2, transition quadrupole moments. Comparison with Hartree-Fock-Bogoliubov model. INGA array.

doi: 10.1140/epja/i2005-10230-0
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2006SI26      Eur.Phys.J. A 28, 277 (2006); Erratum Eur.Phys.J. A 29, 253 (2006)

R.K.Sinha, A.Dhal, P.Agarwal, S.Kumar, Monika, B.B.Singh, R.Kumar, P.Bringel, A.Neusser, R.Kumar, K.S.Golda, R.P.Singh, S.Muralithar, N.Madhavan, J.J.Das, K.S.Thind, A.K.Sinha, I.M.Govil, R.K.Bhowmik, J.B.Gupta, P.K.Joshi, A.K.Jain, S.C.Pancholi, L.Chaturvedi

Loss of collectivity in ⁷⁹Rb

NUCLEAR REACTIONS ⁶³Cu(¹⁹F, 2np), E=60 MeV; measured Eγ, Iγ, γγ-coin, DSA. ⁷⁹Rb deduced high-spin levels, T_1/2, transition quadrupole moments. Comparison with Total Routhian Surface calculations. INGA array.

doi: 10.1140/epja/i2005-10286-8
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