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NSR database version of April 26, 2024.

Search: Author = M.Gull

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2024AL04      J.Phys.(London) G51, 015101 (2024)

S.Ali, M.Gull, K.Kumar, T.Ahmad, I.A.Rizvi, A.Agarwal, S.S.Ghugre, R.N.Ali, F.Khan

Systematic study of fusion suppression and its dependency on projectile breakup threshold energy

NUCLEAR REACTIONS ⁹³Nb(²⁰Ne, X)¹⁰⁹Sn/¹⁰⁸Sn/¹⁰⁵Cd/¹⁰⁴Cd/¹⁰⁹In/¹⁰⁸In/¹⁰⁷In/¹⁰⁵In/¹⁰³Ag/¹⁰¹Pd/¹⁰⁰Rh/⁹⁸Rh, E=145 MeV; measured reaction products, Eγ, Iγ; deduced σ and uncertainties, an empirical formula is proposed to interrelate the degree of fusion suppression and breakup threshold energy of the incident projectile. Comparison with the universal fusion function (UFF) to estimate the degree of fusion incompleteness, PACE4 calculations. The K130 cyclotron facility at the Variable Energy Cyclotron Centre (VECC), Kolkata, India.

doi: 10.1088/1361-6471/ad0a3b
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2022AG01      Phys.Rev. C 105, 034609 (2022)

A.Agarwal, A.Kumar Jashwal, M.Kumar, S.Prajapati, S.Dutt, M.Gull, I.A.Rizvi, K.Kumar, S.Ali, A.Yadav, R.Kumar, A.K.Chaubey

Role of the entrance channel in the experimental study of incomplete fusion of ¹³C with ⁹³Nb

NUCLEAR REACTIONS ⁹³Nb(¹³C, 4n)¹⁰²Ag, (¹³C, 5n)¹⁰¹Ag, (¹³C, 4np)¹⁰¹Pd, (¹³C, 5np)¹⁰⁰Pd, (¹³C, 2nα)¹⁰⁰Rh, (¹³C, 3nα)⁹⁹Rh, (¹³C, 4nα)⁹⁸Rh, (¹³C, 5nα)⁹⁷Rh, (¹³C, 6nα)⁹⁶Rh, (¹³C, 4npα)⁹⁷Ru, (¹³C, 2n2α)⁹⁶Tc, (¹³C, 3n2α)⁹⁵Tc, (¹³C, 4n2α)⁹⁴Tc, E=63.7, 68.1, 70.8, 72.1, 73.8, 75.8, 78.5, 79.2, 82.8, 87.1 MeV; measured Eγ, Iγ, excitation functions; deduced residual production, total fusion and incomplete fusion σ(E), incomplete fusion strength function. Activation technique. Comparison to statistical model calculations (PACE). Comparison of incomplete fusion strength function to other experimental results obtained with different projectiles (¹⁶O, ¹⁸O) on ⁹³Nb or same projectile ¹³C on different targets (¹⁵⁹Tb, ¹⁶⁵Ho, ¹⁶⁹Tm, ¹⁷⁵Lu). Irradiation of targets at 15UD Pelletron accelerator at the Inter-University Accelerator Center (IUAC), New Delhi.

doi: 10.1103/PhysRevC.105.034609
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6425.

2021AG04      Phys.Rev. C 103, 034602 (2021)

A.Agarwal, A.Kumar Jashwal, M.Kumar, S.Prajapati, S.Dutt, M.Gull, I.A.Rizvi, K.Kumar, S.Ali, A.Yadav, R.Kumar, A.K.Chaubey

Effect of neutron excess in the entrance channel on the ¹⁸O + ⁹³Nb system: An experimental study relevant to incomplete-fusion dynamics

NUCLEAR REACTIONS ⁹³Nb(¹⁸O, 3n)¹⁰⁸In, (¹⁸O, 4n)¹⁰⁷In, (¹⁸O, 5n)¹⁰⁶In, (¹⁸O, 3np)¹⁰⁷Cd, (¹⁸O, 5np)¹⁰⁵Cd, (¹⁸O, 2nα)¹⁰⁵Ag, (¹⁸O, 3nα)¹⁰⁴Ag, (¹⁸O, 4nα)¹⁰³Ag, (¹⁸O, 5nα)¹⁰²Ag, (¹⁸O, 6nα)¹⁰¹Ag, (¹⁸O, 6npα)¹⁰⁰Pd, (¹⁸O, 3n2α)¹⁰⁰Rh, (¹⁸O, 4n2α)⁹⁹Rh, (¹⁸O, 2p2α)¹⁰¹Tc, (¹⁸O, 3n3α)⁹⁶Tc, (¹⁸O, 4n3α)⁹⁵Tc, E=61.56, 68.37, 72.33, 76.84, 82.30, 84.85, 89.28, 92.19, 99.20 MeV; measured Eγ, Iγ, production σ(E) by activation method at the 15UD pelletron accelerator facility of IUAC-New Delhi. Comparisons with PACE4 theoretical calculations; deduced effect of entrance channel parameters on incomplete fusion (ICF). ¹⁰³Rh, ¹⁵⁹Tb, ¹⁶⁹Tm, ¹⁷⁵Lu(¹²C, X), ¹⁵⁹Tb, ¹⁶⁹Tm, ¹⁷⁵Lu(¹³C, X), ⁹³Nb, ¹⁰³Rh, ¹⁵⁹Tb, ¹⁶⁹Tm, ¹⁷⁵Lu(¹⁶O, X), ⁹³Nb, ¹⁵⁹Tb, ¹⁷⁵Lu(¹⁸O, X), E at relative velocity=0.053c; analyzed previous and present σ(E) data for incomplete fusion; deduced ICF dependence on Coulomb factor, reaction Q value and neutron skin thickness.

doi: 10.1103/PhysRevC.103.034602
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6397.

2019AL33      Phys.Rev. C 100, 064607 (2019)

S.Ali, K.Kumar, M.Gull, T.Ahmad, I.A.Rizvi, A.Agarwal, A.K.Chaubey, S.S.Ghugre

Systematic of fusion incompleteness in reactions induced by α cluster projectiles

NUCLEAR REACTIONS ¹⁶⁵Ho(²⁰Ne, 3n)¹⁸²Ir, (²⁰Ne, 2np)¹⁸²Os, (²⁰Ne, 3np)¹⁸¹Os, (²⁰Ne, 5np)¹⁷⁹Os, (²⁰Ne, α)¹⁸¹Re, (²⁰Ne, 2nα)¹⁷⁹Re, (²⁰Ne, 3nα)¹⁷⁸Re, (²⁰Ne, 4nα)¹⁷⁷Re, (²⁰Ne, 3npα)¹⁷⁷W, (²⁰Ne, 4npα)¹⁷⁶W, (²⁰Ne, 2n2α)¹⁷⁵Ta, (²⁰Ne, 3np2α)¹⁷³Hf, (²⁰Ne, 3n2α)¹⁷⁴Ta, (²⁰Ne, 4n2α)¹⁷³Ta, E=90.2, 98.4, 108.2, 121.9, 132.6, 145.0 MeV; measured off-line Eγ, Iγ, total σ(E) of observed evaporation residues (ERs) using activation method; deduced fusion σ(E), incomplete fusion probability. ⁸⁹Y, ⁹³Nb, ¹¹⁵In, ¹⁵⁹Tb, ¹⁶⁵Ho, ¹⁸¹Ta(¹²C, X), E(breakup threshold)=7.36 MeV; ⁴⁹Sc, ⁵¹V, ⁸⁹Y, ¹⁰³Rh, ¹¹⁵In, ¹³⁰Te, ¹⁵⁹Tb, ¹⁶⁵Ho, ¹⁶⁹Tm, ¹⁸¹Ta(¹⁶O, X), E(breakup threshold)=7.16 MeV; ⁵¹V, ⁵⁵Mn, ⁵⁹Co, ¹⁵⁹Tb, ¹⁶⁵Ho, ¹⁶⁹Tm(²⁰Ne, X), E(breakup threshold)=4.73 MeV; analyzed fusion σ data to deduce critical angular momentum, and compared with prediction of sum rule. Comparison with statistical model calculations using PACE4 code. ¹⁷³Ta, ¹⁷⁹Os; measured half-life decay curves.

doi: 10.1103/PhysRevC.100.064607
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6375.

2018AL18      Eur.Phys.J. A 54, 56 (2018)

S.Ali, T.Ahmad, K.Kumar, M.Gull, I.A.Rizvi, A.Agarwal, S.S.Ghugre, A.K.Sinha, A.K.Chaubey

Role of partial linear momentum transfer on incomplete fusion reaction

NUCLEAR REACTIONS ⁵¹V(²⁰Ne, xnp), (²⁰Ne, 2nα), (²⁰Ne, xnp), (²⁰Ne, xnpα), (²⁰Ne, xn2α), (²⁰Ne, 2p2α), E≈145 MeV; measured residues Eγ, Iγ; deduced residues yields vs cumulative thickness, most probable range, UFF (Universal Fusion Function); calculated most probable range using SRIM code, angular momentum distribution at E=70, 98, 145 MeV using CCFULL code.

doi: 10.1140/epja/i2018-12491-8
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6327.

2018GU08      Astrophys.J. 862, 174 (2018)

M.Gull, A.Frebel, M.G.Cain, V.M.Placco, A.P.Ji, C.Abate, R.Ezzeddine, A.I.Karakas, T.T.Hansen, C.Sakari, E.M.Holmbeck, R.M.Santucci, A.R.Casey, T.C.Beers

The R-Process Alliance: Discovery of the First Metal-poor Star with a Combined r- and s-process Element Signature

ATOMIC PHYSICS C, N, O, Na, Mg, Al, Si, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Sr, Y, Zr, Ru, Rh, Pd, I, Ba, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Lu, Hf, Os, Ir, Pb, Th; analyzed measured atomic frequencies; deduced elemental abundances with their uncertainties.

doi: 10.3847/1538-4357/aacbc3
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2018GU13      Phys.Rev. C 98, 034603 (2018)

M.Gull, K.Kumar, S.Ali, T.Ahmad, S.Dutt, I.A.Rizvi, A.Agarwal, R.Kumar

Incomplete fusion in ¹⁶O + ⁸⁹Y reactions at energies of ≈ 7 MeV/nucleon

NUCLEAR REACTIONS ⁸⁹Y(¹⁶O, 4n), (¹⁶O, 3np), (¹⁶O, 5np), (¹⁶O, nα), (¹⁶O, 2nα), (¹⁶O, 3nα), (¹⁶O, 2n2α), (¹⁶O, 3n2α)¹⁰¹Ag/¹⁰¹Pd/⁹⁹Pd/¹⁰⁰Rh/^99mRh/⁹⁸Rh/⁹⁵Tc/⁹⁴Tc, E AP 105 MeV; measured Eγ, Iγ of radioactive evaporation residues, σ for evaporation residues by γ-activation method, forward recoil range distributions (FRRD), complete- and incomplete-fusion Q-values and threshold energies at the 15UD accelerator facility of IUAC-New Delhi; deduced fusion function. Comparison with universal fusion function and fusion functions of ¹⁶O beam on various targets. Comparison with theoretical calculations using PACE4 code. ⁹⁴Tc, ¹⁰¹Ag; measured half-lives of decays of ground states from decay curves for γ rays.

doi: 10.1103/PhysRevC.98.034603
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6346.