NSR Query Results
Output year order : Descending NSR database version of March 21, 2024. Search: Author = N.J.Upadhyay Found 11 matches. 2022RO06 Phys.Rev. C 105, 034311 (2022) D.F.Rojas-Gamboa, J.E.Perez Velasquez, N.G.Kelkar, N.J.Upadhyay Manifestation of deformation and nonlocality in α and cluster decay RADIOACTIVITY 222Ra(α), (14C); 223Ra(α), (14C); 228Th(α), (20O); 231Pa(α), (23F); 232U(α), (24Ne); 233U(α), (24Ne), (28Mg); 235U(α), (25Ne), (28Mg); 237Np(α), (30Mg); 236Pu(α), (28Mg); 241Am(α), (34Si); 242Cm(α), (34Si); calculated T1/2, preformation factors, penetration probabilities, half-life dependence on deformation. Studied the nonlocality effects with 2 different nuclear potential models - the energy-independent but angular momentum-dependent Mumbai potential and the energy-dependent Perey-Buck (PB) potential.
doi: 10.1103/PhysRevC.105.034311
2019PE07 Phys.Rev. C 99, 024308 (2019) J.E.Perez Velasquez, N.G.Kelkar, N.J.Upadhyay Assessment of nonlocal nuclear potentials in α decay RADIOACTIVITY 106Te, 144Nd, 168Pt, 180W, 210,212Po, 254Fm(α); calculated strong interaction potential between α particle and daughter nucleus, T1/2, percentage decrease in α decay half-lives using three different models (Mumbai, Sao Paulo and Perey-Buck) of nonlocality, and cluster preformation probability using non-local interaction with density-dependent double-folding model. Comparison with experimental values. Use of α-decay half-lives as a complementary tool for constraining the nonlocality models.
doi: 10.1103/PhysRevC.99.024308
2018UP01 J.Phys.(London) G45, 015106 (2018) N.J.Upadhyay, A.Bhagwat, B.K.Jain A new treatment of nonlocality in scattering process NUCLEAR REACTIONS 12C, 56Fe(n, n), E not given; calculated σ(θ).
doi: 10.1088/1361-6471/aa9877
2018UP02 Phys.Rev. C 98, 024605 (2018) Taylor approximation to treat nonlocality in the scattering process NUCLEAR REACTIONS 24Mg, 40Ca, 100Mo, 208Pb(n, n), (n, n'), E<10 MeV; calculated total σ(E), differential σ(θ, E) using Taylor approximation to the radial wavefunction within the iterative mean value theorem (IMVT) scheme, with and without an iterative perturbation approach. Solution of integro-differential equation. Comparison with experimental values and results from the IMVT scheme.
doi: 10.1103/PhysRevC.98.024605
2014UP02 Phys.Rev. C 90, 014615 (2014) N.J.Upadhyay, V.Eremenko, L.Hlophe, F.M.Nunes, Ch.Elster, G.Arbanas, J.E.Escher, I.J.Thompson Coulomb problem in momentum space without screening NUCLEAR REACTIONS 2H(12C, p), E(cm)=30 MeV; 2H(48Ca, p), E(cm)=36 MeV; 2H(208Pb, p), E(cm)=36, 39 MeV; calculated Coulomb-distorted form factors for (d, p) reactions and dependence on charge, angular momentum, and energy. Regularization techniques using a separable interaction derived from realistic nucleon-nucleus optical potential
doi: 10.1103/PhysRevC.90.014615
2013HL01 Phys.Rev. C 88, 064608 (2013) L.Hlophe, Ch.Elster, R.C.Johnson, N.J.Upadhyay, F.M.Nunes, G.Arbanas, V.Eremenko, J.E.Escher, I.J.Thompson Separable representation of phenomenological optical potentials of Woods-Saxon type NUCLEAR REACTIONS 48Ca, 132Sn, 208Pb(n, X), E=0-50 MeV; calculated partial wave S matrices, separable representations of two-body transition matrix elements and potentials. Ernst-Shakin-Thaler (EST) scheme with CH89 potential.
doi: 10.1103/PhysRevC.88.064608
2013SC25 Phys.Rev. C 88, 064612 (2013) K.T.Schmitt, K.L.Jones, S.Ahn, D.W.Bardayan, A.Bey, J.C.Blackmon, S.M.Brown, K.Y.Chae, K.A.Chipps, J.A.Cizewski, K.I.Hahn, J.J.Kolata, R.L.Kozub, J.F.Liang, C.Matei, M.Matos, D.Matyas, B.Moazen, C.D.Nesaraja, F.M.Nunes, P.D.O'Malley, S.D.Pain, W.A.Peters, S.T.Pittman, A.Roberts, D.Shapira, J.F.Shriner, M.S.Smith, I.Spassova, D.W.Stracener, N.J.Upadhyay, A.N.Villano, G.L.Wilson Reactions of a 10Be beam on proton and deuteron targets NUCLEAR REACTIONS 2H(10Be, p), (10Be, d), 1H(10Be, p), E=60, 75, 90, 107 MeV; measured Ep, Ip, E(d), I(d), elastic and inelastic σ(θ, E) using SIDAR, ORRUBA, and SuperORRUBA arrays of particle detectors at HRIBF-ORNL facility. 11Be; deduced levels, and spectroscopic factors for halo nucleus. Finite-range adiabatic wave approximation (FR-ADWA) analysis.
doi: 10.1103/PhysRevC.88.064612
2012UP01 Phys.Rev. C 85, 054621 (2012) N.J.Upadhyay, A.Deltuva, F.M.Nunes Testing the continuum-discretized coupled channels method for deuteron-induced reactions NUCLEAR REACTIONS 10Be(d, d), (d, p), (d, np), E=21.4, 40.9, 71 MeV; 12C(d, d), (d, p), (d, np), E=12, 56 MeV; 48Ca(d, d), (d, p), (d, np), E=56 MeV; calculated σ(E, θ) for elastic, transfer and breakup channels. Continuum-discretized coupled channels (CDCC) calculations. Comparison with exact three-body Faddeev formulation.
doi: 10.1103/PhysRevC.85.054621
2010ME11 Phys.Rev. C 82, 034608 (2010) G.Mehta Pandejee, N.J.Upadhyay, B.K.Jain K- absorption at rest in nuclei followed by pΛ emission
doi: 10.1103/PhysRevC.82.034608
2009UP01 Nucl.Phys. A824, 70 (2009) N.J.Upadhyay, N.G.Kelkar, B.K.Jain Eta meson rescattering effects in the p + 6Li → η + 7Be reaction near threshold NUCLEAR REACTIONS 6Li(p, 7Be), E=658.8-683 MeV; calculated σ, σ(θ) using a cluster model and including final state interactions effects.
doi: 10.1016/j.nuclphysa.2009.03.010
2007UP01 Phys.Rev. C 75, 054002 (2007) N.J.Upadhyay, K.P.Khemchandani, B.K.Jain, N.G.Kelkar Study of the pd → pdη reaction
doi: 10.1103/PhysRevC.75.054002
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