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NSR database version of May 21, 2024.

Search: Author = U.Gupta

Found 25 matches.

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2023YA11      Phys.Rev. C 107, 044605 (2023)

A.Yadav, G.Ram, M.S.Asnain, I.Majeed, M.Shuaib, V.R.Sharma, I.Bala, U.Gupta, S.Gupta, D.P.Singh, P.P.Singh, M.Sharma, R.Kumar, B.P.Singh, R.Prasad

Understanding the low-energy incomplete fusion reactions

NUCLEAR REACTIONS 159Tb(18O, 3n), (18O, 4n), (18O, 5n), (18O, 6n), (18O, 2nα), (18O, 5nα), (18O, 6nα), (18O, 5npα), E=82, 95, 97, 100 MeV; measured Eγ, Iγ; deduced σ(E), contributions of complete and incomplete fusion channels. Comparison to predictions done using the PACE4 code. Systematics of incomplete fusion with different projectiles - 12C, 13C, 14N, 16O, 18O, 19F, 20Ne. Activation technique experiment at the Inter-University Accelerator Centre (IUAC, New Delhi).

doi: 10.1103/PhysRevC.107.044605
Citations: PlumX Metrics


2022MA13      Nucl.Phys. A1021, 122421 (2022)

I.Majeed Bhat, Mohd.S.M.S.Asnain, V.R.Sharma, A.Yadav, M.K.Sharma, P.P.Singh, D.P.Singh, U.Gupta, R.N.Sahoo, A.Sood, M.Kaushik, R.Kumar, B.P.Singh, R.Prasad

Effect of projectile structure on break-up fusion for 14N + 175Lu system at intermediate energies

NUCLEAR REACTIONS 175Lu(14N, X)184Pt/185Pt/186Pt/183Ir/184Ir/185Ir/182Os/183Os/181Re/177W/178Ta, E=87.11 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with PACE4 predictions. The Inter University Accelerator, New Delhi, India.

doi: 10.1016/j.nuclphysa.2022.122421
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6422.


2022MA25      Phys.Rev. C 105, 054607 (2022)

I.Majeed Bhat, M.Shuaib, M.S.Asnain, M.K.Sharma, A.Yadav, V.R.Sharma, P.P.Singh, D.P.Singh, S.Gupta, U.Gupta, R.N.Sahoo, A.Sood, M.Kaushik, S.Kumar, R.Kumar, B.P.Singh, R.Prasad

Role of precursor nuclei in heavy-ion induced reactions at low energies

NUCLEAR REACTIONS 175Lu(14N, 4np), E=79.68, 87.11 MeV; 159Tb(12C, 3np), E=69.15, 77.77 MeV; 159Tb(13C, 4np), E=77.87, 84.59 MeV; measured Eγ, Iγ; deduced σ(E). Separated yields of the isotope produced in the direct reaction from feeding caused by decay of the isotopes from other channels. Pelletron accelerator facility of the Inter-University Accelerator Centre(IUAC), New Delhi. comparison to theoretical estimations.

RADIOACTIVITY 184Pt(β+), (EC) [from 175Lu(14N, 5n), E=79.68, 87.11 MeV]; 167Lu(EC) [from 159Tb(13C, 5n), E=77.87, 84.59 MeV; 159Tb(12C, 4n), E=69.15, 77.77 MeV]; measured Eγ, Iγ; deduced T1/2. Comparison to other experimental data.

doi: 10.1103/PhysRevC.105.054607
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6434. Data from this article have been entered in the XUNDL database. For more information, click here.


2021AS08      Phys.Rev. C 104, 034616 (2021)

M.S.Asnain, M.Shuaib, I.Majeed, M.K.Sharma, V.R.Sharma, A.Yadav, D.P.Singh, P.P.Singh, U.Gupta, R.N.Sahoo, A.Sood, M.Kaushik, S.Kumar, R.Kumar, B.P.Singh, R.Prasad

Effect of non-α-cluster projectile on incomplete-fusion dynamics: Experimental study of the 14N + 181Ta

NUCLEAR REACTIONS 181Ta(14N, 3n)192Hg, (14N, 4n)191Hg/191mHg, (14N, 5n)190Hg, (14N, 6n)189Hg/189mHg, (14N, 3np)191Au, (14N, 4np)190Au, (14N, 5np)189Au/189mAu, (14N, 2nα)189Pt, (14N, 4nα)187Pt, (14N, 5nα)186Pt, (14N, 3npα)187Ir, (14N, 4npα)186Ir/186mIr, (14N, 5npα)185Ir, (14N, 4n2α)183Os, (14N, 5np2α)181Re, E=65.53, 67.50, 69.47, 71.54, 73.65, 75.65, 77.08, 79.51, 81.42, 83.05, 85.17, 87.07 MeV; measured off-line Eγ, Iγ, σ(E) for radio-nuclides populated via complete fusion (CF) and/or incomplete fusion (ICF processes) by activation method at the ion-beam facility of the IUAC-New Delhi; deduced total fusion, total complete fusion, and total incomplete fusion σ(E). Comparison with statistical model calculations using PACE4 code. 190Hg; measured nominal half-life from γ-decay curves as an example for the purpose of correct identification of different radioactive nuclei produced through various reaction channels.

doi: 10.1103/PhysRevC.104.034616
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6406.


2021OJ01      Phys.Rev. C 104, 034615 (2021)

A.Ojha, S.Gupta, U.Gupta, P.P.Singh, A.Yadav, D.P.Singh, M.Shuaib, B.P.Singh, R.Prasad

Mass-number dependence of statistical model parameters and its impact on incomplete fusion fraction calculations

NUCLEAR REACTIONS 181Ta(16O, 3n)194Tl, (16O, 4n)193Tl, (16O, 5n)192Tl, (16O, 3np)193Hg, (16O, 4np)192Hg, (16O, 5np)191Hg, E=75-105 MeV; 165Ho(12C, 3n)174Ta, (12C, 4n)173Ta, (12C, 5n)172Ta, (12C, 3np)173Hf, E=55-85 MeV; 163Dy(14N, 3n)174Ta, (14N, 4n)173Ta, (14N, 5n)172Ta, E=65-85 MeV; 74Ge(16O, 4n)86Zr, (16O, 2np)87Y, (16O, 3np)86Y, (16O, 4np)85Y, E=50-110 MeV; calculated σ(E) using statistical model based PACE4 code, with optical model potential (OMP) parameters, summed σ(E) using different sets of OMP parameters and impact on incomplete fusion (ICF) fraction, and effect of deformation parameter β2 on incomplete fusion. Comparison with experimental data.

doi: 10.1103/PhysRevC.104.034615
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2019SA17      Phys.Rev. C 99, 024607 (2019)

R.N.Sahoo, M.Kaushik, A.Sood, P.Kumar, A.Sharma, S.Thakur, P.P.Singh, P.K.Raina, M.M.Shaikh, R.Biswas, A.Yadav, J.Gehlot, S.Nath, N.Madhavan, V.Srivastava, M.K.Sharma, B.P.Singh, R.Prasad, A.Rani, A.Banerjee, U.Gupta, N.K.Deb, B.J.Roy

Sub-barrier fusion in the 37Cl + 130Te system

NUCLEAR REACTIONS 130Te(37Cl, X), E=121-155 MeV; measured reaction products, evaporation residues, time of flight of evaporation residue, fusion σ(E) using the HIRA recoil mass spectrometer at the 15UD Pelletron accelerator of IUAC-New Delhi; deduced fusion barrier distributions, astrophysical S factor, logarithmic derivative L(E) factor. Comparison with coupled-channels code calculations using CCFULL code. Systematics of reduced fusion excitation functions of 37Cl projectiles on 58,60,62,64Ni, 130Te targets at sub-barrier energies.

doi: 10.1103/PhysRevC.99.024607
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6360.


2019SO21      Acta Phys.Pol. B50, 291 (2019)

A.Sood, P.Kumar, R.N.Sahoo, P.P.Singh, A.Yadav, V.R.Sharma, M.K.Sharma, D.P.Singh, U.Gupta, S.Aydin, R.Kumar, B.P.Singh, R.Prasad

Entrance Channel Effects on Fission Fragment Mass Distribution in 12C + 169Tm System

NUCLEAR REACTIONS 169Tm(12C, X), E= 77.18, 83.22, 89.25 MeV; measured Eγ, Iγ(t); deduced production σ of evaporation residues, isotopic yieldsmass distribution of fission fragments.

doi: 10.5506/aphyspolb.50.291
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6310.


2018SA38      Acta Phys.Pol. B49, 585 (2018)

R.N.Sahoo, M.Kaushik, A.Sood, P.Kumar, V.R.Sharma, A.Yadav, M.Shuaib, D.P.Singh, P.P.Singh, U.Gupta, M.K.Sharma, R.Kumar, B.P.Singh, S.Aydin, H.J.Wollersheim, R.Prasad

Entrance Channel Effect on Incomplete Fusion

NUCLEAR REACTIONS 169Tm(12C, x), E=5-7.5 MeV/nucleon; measured evaporation residues (ER) Eγ, Iγ(time); deduced 177Re σER; calculated σER using statistical model code PACE-IV with different level density parameter; calculated total (summed over all ERs) σT, complete and incomplete fusion σCF, σICF. 103Rh, 115In, 159Tb, 169Tm, 197Au(12C, x), E not given;103Rh, 159Tb, 169Tm(16O, x), E not given; measured reaction products Eγ, Iγ; deduced incomplete fusion fraction vs mass asymmetry (relative projectile-target velocity close to 0.05c vs asymmetry).

doi: 10.5506/aphyspolb.49.585
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6326.


2017AL39      Nucl.Phys. A968, 403 (2017)

R.Ali, M.Afzal Ansari, D.Singh, R.Kumar, D.P.Singh, M.K.Sharma, U.Gupta, B.P.Singh, P.D.Shidling, D.Negi, S.Muralithar, R.P.Singh, R.K.Bhowmik

Observed side feeding in incomplete fusion dynamics in 16O + 160Gd reaction at energy ∼ 5.6 MeV/A: Spin distribution measurements

NUCLEAR REACTIONS 160Gd(16O, x), E≈5.6 MeV/nucleon; measured Eγ, Iγ(θ), Ep, Ip(θ), Eα, Iα(θ), pγ-coin, αγ-coin using GDA (Gamma Detector Array) consisting of 12 n-type Compton suppressed HPGE working together with CPDA (Charged Particle Detector Array); deduced relative spin distributions (relative yields vs spin) of different reaction channels, evaporation residues yrast bands side feeding intensities, mean input angular momentum for different reaction channels.

doi: 10.1016/j.nuclphysa.2017.09.005
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2017SO12      Phys.Rev. C 96, 014620 (2017)

A.Sood, P.P.Singh, R.N.Sahoo, P.Kumar, A.Yadav, V.R.Sharma, Mohd.Shuaib, M.K.Sharma, D.P.Singh, U.Gupta, R.Kumar, S.Aydin, B.P.Singh, H.J.Wollersheim, R.Prasad

Fission-like events in the 12C + 169Tm system at low excitation energies

NUCLEAR REACTIONS 169Tm(12C, X)74mBr/74Kr/75Br/75Ge/75Kr/76Kr/77Kr/78As/79Rb/81Sr/84Br/85Zr/86Y/87Zr/89Rb/93Y/94Ru/95Ru/97Nb/98mNb/101Tc/102mTc/104Tc/104Ag/105Tc/105In/175Re/176Re/177Re/178Re/177W/173Ta/174Ta/175Ta/176Ta/171Lu, E=77.81, 83.22, 89.25 MeV; measured Eγ, Iγ, recoil-catcher activation technique, half-life of 74Kr decay, production σ(E) of fission products and evaporation residues, charge and mass distribution of fission fragments at the pelletron accelerator facility of IUAC-New Delhi; deduced fission as one of the competing modes of deexcitation of complete and/or incomplete fusion composites at low excitation energies. Comparison with calculations using PACE code. 181Ta(16O, X), E*=67.04 MeV; 159Tb(16O, X), E*=57.1 MeV; 169Tm(16O, X), E*=61.06 MeV; 232Th(7Li, X), E*=41.7 MeV; 232Th(11B, X), E*=55.7 MeV; 238U(11B, X), E*=67.4 MeV; 238U(22Ne, X), E*=64.5 MeV; 208Pb(20Ne, X), E*=46.4 MeV; analyzed previous experimental data for isotopic yield distributions.

doi: 10.1103/PhysRevC.96.014620
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6310.


2012YA03      Phys.Rev. C 85, 034614 (2012)

A.Yadav, V.R.Sharma, P.P.Singh, D.P.Singh, M.K.Sharma, U.Gupta, R.Kumar, B.P.Singh, R.Prasad, R.K.Bhowmik

Large influence of incomplete fusion in 12C + 159Tb at Elab ≈ 4-7 MeV/nucleon

NUCLEAR REACTIONS 159Tb(12C, X)160Ho/160mHo/161Ho/163Tm/165Tm/165Lu/167Yb/167Lu/168Lu/168mLu, E=54-88 MeV; measured Eγ, Iγ, production σ(E) for complete fusion and incomplete fusion; deduced total fusion cross section, percentage fraction of incomplete fusion (ICF), mass asymmetry dependence on ICF fraction. Gamma-activation technique. Comparison with statistical model code PACE4 and previous studies.

doi: 10.1103/PhysRevC.85.034614
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6196.


2011YA17      Int.J.Mod.Phys. E20, 2133 (2011)

A.Yadav, P.P.Singh, V.R.Sharma, U.Gupta, D.P.Singh, M.K.Sharma, B.P.Singh, R.Prasad, R.Kumar, R.P.Singh, S.Muralithar, R.K.Bhowmik

Signature of pre-equilibrium-emission in forward-to-backward yield ratio measurement

NUCLEAR REACTIONS 169Tm(16O, X)181Os/181Re/182Re/183Re/179W/181W/182W/179Ta/180Ta, E=5.6 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced normalized yield, yield ratios; deduced preequilibrium emission.

doi: 10.1142/S0218301311020198
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2009GU24      Phys.Rev. C 80, 024613 (2009)

U.Gupta, P.P.Singh, D.P.Singh, M.K.Sharma, A.Yadav, R.Kumar, S.Gupta, H.D.Bhardwaj, B.P.Singh, R.Prasad

Disentangling full and partial linear momentum transfer events in the 16O+169Tm system at Eproj ≤ 5.4 MeV/nucleon

NUCLEAR REACTIONS 169Tm(16O, X)171Lu/172Lu/171Hf/175Hf/181Re/181Os/182Os/182Ir, E=76, 81 MeV; measured σ, angular distributions, forward recoil ranges and most probable recoil ranges.

doi: 10.1103/PhysRevC.80.024613
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2009SI02      Phys.Lett. B 671, 20 (2009)

P.P.Singh, B.P.Singh, M.K.Sharma, U.Gupta, R.Kumar, D.Singh, R.P.Singh, S.Murlithar, M.A.Ansari, R.Prasad, R.K.Bhowmik

Probing of incomplete fusion dynamics by spin-distribution measurement

NUCLEAR REACTIONS 169Tm(16O, X)177Re/178Re/179Re/180Os/181Os/182Os/180Ir/181Ir/182Ir, E=5.6 MeV/nucleon; measured Eγ, Iγ, (charged-particle)γ-coin, yields, spin distributions; deduced γ cascade feeding intensities. Comparison with PACE4 calculations.

doi: 10.1016/j.physletb.2008.11.035
Citations: PlumX Metrics


2009SI34      Phys.Rev. C 80, 064603 (2009)

P.P.Singh, A.Yadav, D.P.Singh, U.Gupta, M.K.Sharma, R.Kumar, D.Singh, R.P.Singh, S.Muralithar, M.A.Ansari, B.P.Singh, R.Prasad, R.K.Bhowmik

Role of high ℓ values in the onset of incomplete fusion

NUCLEAR REACTIONS 169Tm(12C, X)171Lu/173Ta/174Ta/175Ta/176W/176Re/177Re/178Re/180Ir/180Os/, E=5.6, 6.5 MeV/nucleon; measured α spectra, Eγ, Iγ, γ(particle)-coin; deduced yields, spin distributions, and role of angular momentum on yields in incomplete fusion. Comparison with data for 169Tm(16O, X) reaction.

doi: 10.1103/PhysRevC.80.064603
Citations: PlumX Metrics


2008GU13      Nucl.Phys. A811, 77 (2008)

U.Gupta, P.P.Singh, D.P.Singh, M.K.Sharma, A.Yadav, R.Kumar, B.P.Singh, R.Prasad

Observation of large incomplete fusion in 16O + 103Rh system at ≈ 3-5 MeV/nucleon

NUCLEAR REACTIONS 103Rh(16O, X)114Te/115Te/116Te/117Te/115Sb/116Sb/117Sb/110Sn/108In/109In/110In/111In/103Ag/104Ag/106Ag, E≈46-85 MeV; measured Eγ, Iγ, σ. Discussed fraction of (in)complete fusion. Comparison with PACE4 calculations. HPGe detector, stacked targets, energy degradation technique.

doi: 10.1016/j.nuclphysa.2008.07.013
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6069.


1979MI11      J.Phys.(London) G5, 855 (1979)

S.C.Misra, U.C.Gupta

The (n, 2n) Cross Sections of 85Rb, 107Ag and 181Ta at 14.6 MeV

NUCLEAR REACTIONS 85Rb, 107Ag, 181Ta(n, 2n), E=14.6 MeV; measured σ. Natural target, NaI(Tl) detector, activation technique.

doi: 10.1088/0305-4616/5/6/011
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset30507.


1971MA14      Can.J.Phys. 49, 1053 (1971)

P.N.Maheshwari, U.C.Gupta, C.St-Pierre

Study of the 48Ti(α, p)51V and 50Ti(3He, d)51V Reactions

NUCLEAR REACTIONS 48Ti(α, p), E=8-11 MeV; 50Ti(3He, d), E=10 MeV; measured σ(Ep, θ), σ(Ed, θ). 51V deduced levels, J, π, L, S.

doi: 10.1139/p71-129
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1967SI01      Nucl.Phys. A91, 557 (1967)

N.P.S.Sidhu, U.C.Gupta

Lifetimes of the 1.10 and 1.29 MeV Excited States in 59Co

RADIOACTIVITY 59Fe [from 58Fe(n, γ)]; measured βγ (t). 59Co levels deduced T1/2. Enriched target.

doi: 10.1016/0375-9474(67)90575-1
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1965DH01      Current Sci.(India) 34, 504 (1965)

K.C.Dhingra, U.C.Gupta, N.P.S.Sidhu

Decay of 51Cr

NUCLEAR STRUCTURE 51Cr; measured not abstracted; deduced nuclear properties.


1965GU06      Nucl.Phys. 73, 413 (1965)

U.C.Gupta, P.K.Srivastava, G.D.Khera

Decay of 86Rb

RADIOACTIVITY 86Rb[from 85Rb(n, γ)]; measured Iγ, βγ-coin. Natural target.

doi: 10.1016/0029-5582(65)90686-3
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1964MI07      Nucl.Phys. 51, 174 (1964)

S.C.Misra, U.C.Gupta, N.P.S.Sidhu

Decay of 47Sc

NUCLEAR STRUCTURE 47Sc; measured not abstracted; deduced nuclear properties.

doi: 10.1016/0029-5582(64)90261-5
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1962GU09      J.Sci.Ind.Res.(India) 21B, 1 (1962)

U.C.Gupta, M.G.Shahani, P.K.Srivastava

Internal Conversion Coefficients of Au198, Hg203, Cs137 and Cr51 Using a CsI(Tl) Scintillation Spectrometer

NUCLEAR STRUCTURE 203Hg, 198Au, 137Cs, 51Cr; measured not abstracted; deduced nuclear properties.


1956MI17      Phys.Rev. 101, 740 (1956)

D.W.Miller, B.M.Carmichael, U.C.Gupta, V.K.Rasmussen, M.B.Sampson

Scattering of 22-MeV Alpha Particles by N14

doi: 10.1103/PhysRev.101.740
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1955RA41      Phys.Rev. 100, 851 (1955)

V.K.Rasmussen, D.W.Miller, M.B.Sampson, U.C.Gupta

Reactions Be9(α, α'), Be9(α, d), and Be9(d, d')

doi: 10.1103/PhysRev.100.851
Citations: PlumX Metrics


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Note: The following list of authors and aliases matches the search parameter U.Gupta: , U.C.GUPTA