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NSR database version of April 27, 2024.

Search: Author = R.Butt

Found 27 matches.

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2007MU06      Phys.Rev. C 75, 044608 (2007)

A.Mukherjee, D.J.Hinde, M.Dasgupta, K.Hagino, J.O.Newton, R.D.Butt

Failure of the Woods-Saxon nuclear potential to simultaneously reproduce precise fusion and elastic scattering measurements

NUCLEAR REACTIONS ²⁰⁸Pb(¹²C, X), E(cm)=58-94 MeV; measured fusion, fission, and evaporation residue σ; deduced barrier distribution. Comparison with model predictions.

doi: 10.1103/PhysRevC.75.044608
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0476.

2004DA23      Phys.Rev. C 70, 024606 (2004)

M.Dasgupta, P.R.S.Gomes, D.J.Hinde, S.B.Moraes, R.M.Anjos, A.C.Berriman, R.D.Butt, N.Carlin, J.Lubian, C.R.Morton, J.O.Newton, A.Szanto de Toledo

Effect of breakup on the fusion of ⁶Li, ⁷Li, and ⁹Be with heavy nuclei

NUCLEAR REACTIONS ²⁰⁹Bi(⁶Li, X)²¹³Rn/²¹²Rn/²¹¹Rn/²¹⁰Rn/²¹³At/²¹²At/²¹¹At/²¹²Po/²¹¹Po/²¹⁰Po, E=26-48 MeV; ²⁰⁹Bi(⁷Li, X)²¹⁴Rn/²¹³Rn/²¹²Rn/²¹¹Rn/²¹³At/²¹²At/²¹¹At/²¹²Po/²¹¹Po/²¹⁰Po/²¹¹Bi, E=26-52 MeV; ²⁰⁸Pb(⁹Be, X)²¹⁵Rn/²¹⁴Rn/²¹³Rn/²¹²Rn/²¹²Po/²¹¹Po/²¹⁰Po, E=36-51 MeV; measured fission, complete and incomplete fusion σ; deduced barrier distributions, breakup effects, other reaction mechanism features.

doi: 10.1103/PhysRevC.70.024606
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0719.

2004NE02      Phys.Lett. B 586, 219 (2004)

J.O.Newton, R.D.Butt, M.Dasgupta, D.J.Hinde, I.I.Gontchar, C.R.Morton, K.Hagino

Systematics of precise nuclear fusion cross sections: the need for a new dynamical treatment of fusion?

NUCLEAR REACTIONS ²⁰⁸Pb(¹⁶O, X), E(cm)=80-105 MeV; ²⁰⁸Pb(⁹Be, X), ⁹²Zr, ²⁰⁴Pb(¹²C, X), ^58,62Ni, ⁹²Zr, ^112,116Sn, ^144,148,154Sm, ^182,186W, ^194,198Pt, ²³⁸U(¹⁶O, X), ¹⁴⁴Sm(¹⁷O, X), ¹⁹⁷Au, ²⁰⁸Pb, ²³²Th(¹⁹F, X), ⁹²Zr, ¹⁴⁴Sm, ¹⁷⁸Hf, ²⁰⁸Pb(²⁸Si, X), ¹⁷⁸Hf(²⁹Si, X), ¹⁸⁶W(³⁰Si, X), ¹⁷⁵Lu(³¹P, X), ⁸⁹Y, ²⁰⁸Pb, ²³²Th(³²S, X), ⁸⁹Y, ¹⁶⁸Er(³⁴S, X), ⁹²Zr(³⁵Cl, X), ⁴⁸Ca, ^46,48,50Ti, ^90,96Zr, ¹²⁴Sn, ¹⁹²Os, ¹⁹⁴Pt(⁴⁰Ca, X), ⁶⁰Ni(⁵⁸Ni, X), E not given; analyzed fusion excitation functions; deduced diffuseness parameter, possible dynamical effects.

doi: 10.1016/j.physletb.2004.02.052
Citations: PlumX Metrics

2004NE10      Phys.Rev. C 70, 024605 (2004)

J.O.Newton, R.D.Butt, M.Dasgupta, D.J.Hinde, I.I.Gontchar, C.R.Morton, K.Hagino

Systematic failure of the Woods-Saxon nuclear potential to describe both fusion and elastic scattering: Possible need for a new dynamical approach to fusion

NUCLEAR REACTIONS ²⁰⁸Pb(⁹Be, X), ⁹²Zr, ²⁰⁴Pb(¹²C, X), ^58,62Ni, ⁹²Zr, ^112,116Sn, ^144,148,154Sm, ^182,186W, ¹⁹⁴Pt, ²⁰⁸Pb, ²³⁸U(¹⁶O, X), ¹⁴⁴Sm(¹⁷O, X), ¹⁹⁴Pt(¹⁸O, X), ¹⁹⁷Au, ²⁰⁸Pb, ²³²Th(¹⁹F, X), ⁹²Zr, ¹⁴⁴Sm, ¹⁷⁸Hf, ²⁰⁸Pb(²⁸Si, X), ¹⁷⁸Hf(²⁹Si, X), ¹⁸⁶W(³⁰Si, X), ⁹²Zr(³⁵Cl, X), ¹⁷⁵Lu(³¹P, X), ⁸⁹Y, ²⁰⁸Pb, ²³²Th(³²S, X), ⁸⁹Y, ¹⁶⁸Er(³⁴S, X), ^90,96Zr(³⁶S, X), ⁴⁸Ca, ^46,48,50Ti, ^90,96Zr, ¹²⁴Sn, ¹⁹²Os, ¹⁹⁴Pt(⁴⁰Ca, X), ⁴⁸Ca(⁴⁸Ca, X), ⁶⁰Ni(⁵⁸Ni, X), E > barrier; analyzed fusion excitation functions; deduced diffuseness parameters and radii, possible resonance effects, dynamical features.

doi: 10.1103/PhysRevC.70.024605
Citations: PlumX Metrics

2003HI15      Phys.Rev. C 68, 044606 (2003)

D.J.Hinde, N.Rowley, M.Dasgupta, R.D.Butt, C.R.Morton, A.Mukherjee

Exploratory studies towards fusion with the 16⁺ isomer of ¹⁷⁸Hf

NUCLEAR REACTIONS ¹⁷⁸Hf(¹⁶O, X), E=68-90 MeV; measured evaporation residue σ, σ(θ). Feasibility of experiment with isomeric target discussed.

doi: 10.1103/PhysRevC.68.044606
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0656.

2002BU08      Phys.Rev. C65, 044606 (2002); Erratum Phys.Rev. C65, 069904 (2002)

R.D.Butt, M.Dasgupta, I.Gontchar, D.J.Hinde, A.Mukherjee, A.C.Berriman, C.R.Morton, J.O.Newton, A.E.Stuchbery, J.P.Lestone

Effects on Finite Ground-State Spin on Fission Fragment Angular Distributions following Collisions with Spherical or Deformed Nuclei

NUCLEAR REACTIONS ²⁰⁹Bi(¹⁶O, F), E(cm) ≈ 76 MeV; ²³²Th(¹⁰B, F), E(cm) ≈ 46 MeV; ¹⁷⁶Lu(³¹P, F), E(cm) ≈ 122 MeV; ^178,178mHf(²⁸Si, X), E ≈ 116 MeV; calculated fission fragments angular distributions, dependence on target spin.

doi: 10.1103/PhysRevC.65.044606
Citations: PlumX Metrics

2002BU27      Phys.Rev. C66, 044601 (2002)

R.D.Butt, D.J.Hinde, M.Dasgupta, A.C.Berriman, A.Mukherjee, C.R.Morton, J.O.Newton

Measurement of the effect of large deformation-aligned ground-state spin on fission fragment anisotropies

NUCLEAR REACTIONS ¹⁷⁸Hf(²⁸Si, X), (²⁹Si, X), E ≈ 124-161 MeV; ^175,176Lu(³¹P, X), E ≈ 135-165 MeV; measured fission and evaporation residue σ, fission fragment angular distributions, anisotropies; deduced effect of ground-state spin alignment. Comparisons with model predictions.

doi: 10.1103/PhysRevC.66.044601
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0813.

2002DA23      Phys.Rev. C66, 041602 (2002)

M.Dasgupta, D.J.Hinde, K.Hagino, S.B.Moraes, P.R.S.Gomes, R.M.Anjos, R.D.Butt, A.C.Berriman, N.Carlin, C.R.Morton, J.O.Newton, A.Szanto de Toledo

Fusion and breakup in the reactions of ⁶Li and ⁷Li nuclei with ²⁰⁹Bi

NUCLEAR REACTIONS ²⁰⁹Bi(⁶Li, X), (⁷Li, X), E(cm)=25-50 MeV; measured fusion, incomplete fusion, and fission excitation functions; deduced reaction mechanism features. Classical trajectory model.

doi: 10.1103/PhysRevC.66.041602
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0590.

2002GO05      Phys.Rev. C65, 034610 (2002)

I.I.Gontchar, M.Dasgupta, D.J.Hinde, R.D.Butt, A.Mukherjee

Importance of Geometrical Corrections to Fusion Barrier Calculations for Deformed Nuclei

NUCLEAR REACTIONS ¹⁵⁴Sm(¹⁶O, X), E=45-70 MeV; calculated fusion barriers, σ; deduced deformation effects.

doi: 10.1103/PhysRevC.65.034610
Citations: PlumX Metrics

2002HI04      Eur.Phys.J. A 13, 149 (2002)

D.J.Hinde, A.C.Berriman, R.D.Butt, M.Dasgupta, C.R.Morton, A.Mukherjee, J.O.Newton

Influence of Entrance Channel Properties on Heavy-Ion Reaction Dynamics

NUCLEAR REACTIONS ²⁰⁸Pb, ²³²Th(³²S, X), ²⁰⁸Pb(¹⁹F, X), ¹⁶⁸Er(³⁴S, X), E(cm)=80-180 MeV; ²⁰⁹Bi(⁷Li, X), ²⁰⁸Pb(⁹Be, X), E(cm)=20-50 MeV; analyzed fusion σ, barrier distributions, entrance channel effects.

doi: 10.1007/s10050-002-8734-0
Citations: PlumX Metrics

2002HI25      J.Nucl.Radiochem.Sci. 3, No 1, 31 (2002)

D.J.Hinde, A.C.Berriman, R.D.Butt, M.Dasgupta, I.I.Gontchar, C.R.Morton, A.Mukherjee, J.O.Newton

Role of Entrance-channel Dynamics in Heavy Element Synthesis

NUCLEAR REACTIONS ²³⁸U(¹⁶O, X), E(cm) ≈ 70-100 MeV; ²⁰⁸Pb, ²³²Th(³²S, X), E(cm) ≈ 130-170 MeV; measured barrier distributions, fission fragment mass distributions. ²⁰⁴Pb(¹²C, xn), ¹⁹⁷Au(¹⁹F, xn), ¹⁸⁶W(³⁰Si, xn), E^* ≈ 20-90 MeV; measured fusion, fission, evaporation residue σ; deduced entrance channel effects.

2002MU03      Phys.Lett. 526B, 295 (2002)

A.Mukherjee, M.Dasgupta, D.J.Hinde, H.Timmers, R.D.Butt, P.R.S.Gomes

Absence of Fusion Suppression Due to Breakup in the ¹²C + ⁷Li Reaction

NUCLEAR REACTIONS ⁷Li(¹²C, X), E(cm)=3.7 MeV; measured fusion σ, evaporation residues angular distributions; deduced no inhibition of fusion near the barrier.

doi: 10.1016/S0370-2693(01)01505-2
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0589.

2001BE55      Nature(London) 413, 144 (2001)

A.C.Berriman, D.J.Hinde, M.Dasgupta, C.R.Morton, R.D.Butt, J.O.Newton

Unexpected Inhibition of Fusion in Nucleus-Nucleus Collisions

NUCLEAR REACTIONS ²⁰⁴Pb(¹²C, X), ¹⁹⁷Au(¹⁹F, X), ¹⁸⁶W(³⁰Si, X), E^* ≈ 25-90 MeV; measured fission, evaporation residue σ; deduced quasi-fission process, inhibition of fusion. Comparison with model predictions.

doi: 10.1038/35093069
Citations: PlumX Metrics

2001HI04      Nucl.Phys. A685, 72c (2001)

D.J.Hinde, A.C.Berriman, R.D.Butt, M.Dasgupta, C.R.Morton, J.O.Newton

Dynamical Interplay of Fusion and Fission in Low Energy Nucleus-Nucleus Collisions

NUCLEAR REACTIONS ²⁰⁸Pb(¹⁹F, X), ¹⁸²W(¹⁶O, X), ²⁰⁸Pb, ²³²Th(³²S, X), ¹⁶⁸Er(³⁴S, X), E(cm) ≈ 65-180 MeV; analyzed fusion σ, barrier distributions, anisotropies; deduced deformation effects.

doi: 10.1016/S0375-9474(01)00530-9
Citations: PlumX Metrics

2001MO27      Phys.Rev. C64, 034604 (2001)

C.R.Morton, A.C.Berriman, R.D.Butt, M.Dasgupta, D.J.Hinde, A.Godley, J.O.Newton, K.Hagino

Influence of Higher-Order Deformations in the ³⁴S + ¹⁶⁸Er Fusion Reactions

NUCLEAR REACTIONS ¹⁶⁸Er(³⁴S, X), E(cm)=110-140 MeV; analyzed fusion, fission σ, fusion barrier distribution; deduced role of hexacontatetrapole deformation. Coupled-channels approach, comparison with macroscopic-microscopic model prediction.

doi: 10.1103/PhysRevC.64.034604
Citations: PlumX Metrics

2001MU34      Pramana 57, 195 (2001)

A.Mukherjee, M.Dasgupta, D.J.Hinde, C.R.Morton, A.C.Berriman, R.D.Butt, J.O.Newton, H.Timmers

Fusion Around the Barrier for ⁷Li + ¹²C

NUCLEAR REACTIONS ¹²C(⁷Li, X), E=13-30 MeV; ¹²C(¹²C, X), E=15-20 MeV; measured fusion σ. Comparison with previous results, model predictions.

doi: 10.1007/s12043-001-0174-x
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6167.

2000HI16      Phys.Rev. C62, 024615 (2000)

D.J.Hinde, W.Pan, A.C.Berriman, R.D.Butt, M.Dasgupta, C.R.Morton, J.O.Newton

Loss of Memory of Target Nucleus Deformation Axis in Heavy-Ion Fusion-Fission

NUCLEAR REACTIONS ¹⁸²W(¹⁶O, X), E=72-90 MeV; measured fission fragments energies, angular distributions, fusion σ, fission probability; deduced agreement with statistical model.

doi: 10.1103/PhysRevC.62.024615
Citations: PlumX Metrics

2000MO13      Phys.Lett. 481B, 160 (2000)

C.R.Morton, D.J.Hinde, A.C.Berriman, R.D.Butt, M.Dasgupta, A.Godley, J.O.Newton

Memory of Entrance-Channel Deformation for Fast-Fission

NUCLEAR REACTIONS ¹⁶⁸Er(³⁴S, X), E(cm)=112-142 MeV; measured fusion σ, fission fragment anisotropy; ²⁰⁸Pb(¹⁹F, X), E(cm)=74-100 MeV; analyzed fusion σ, fission fragment anisotropy; deduced barrier distributions, role of entrance channel deformation. Comparison with model predictions.

doi: 10.1016/S0370-2693(00)00470-6
Citations: PlumX Metrics

2000MO20      Phys.Rev. C62, 024607 (2000)

C.R.Morton, A.C.Berriman, R.D.Butt, M.Dasgupta, A.Godley, D.J.Hinde, J.O.Newton

Memory of the Entrance-Channel K Distribution Observed in Fission at High Angular Momentum

NUCLEAR REACTIONS ¹⁶⁸Er(³⁴S, X), E=134-196 MeV; measured fission, fusion, evaporation residue σ, fission fragments angular distributions, anisotropies; deduced entrance channel effect.

doi: 10.1103/PhysRevC.62.024607
Citations: PlumX Metrics

1999DA07      Phys.Rev.Lett. 82, 1395 (1999)

M.Dasgupta, D.J.Hinde, R.D.Butt, R.M.Anjos, A.C.Berriman, N.Carlin, P.R.S.Gomes, C.R.Morton, J.O.Newton, A.Szanto de Toledo, K.Hagino

Fusion Versus Breakup: Observation of large fusion suppression for ⁹Be + ²⁰⁸Pb

NUCLEAR REACTIONS ²⁰⁸Pb(⁹Be, X), E=35-51 MeV; measured complete, incomplete fusion σ; deduced projectile breakup effects.

doi: 10.1103/PhysRevLett.82.1395
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0591.

1999DA26      Pramana 53, 513 (1999)

M.Dasgupta, D.J.Hinde, R.D.Butt, A.C.Berriman, C.R.Morton, J.O.Newton, K.Hagino

Exploiting Barrier Distributions to Investigate Breakup Effects in the Fusion of ⁹Be + ²⁰⁸Pb

NUCLEAR REACTIONS ²⁰⁸Pb(⁹Be, F), (⁹Be, 2n), (⁹Be, 3n), (⁹Be, 4n), (⁹Be, 5n), (⁹Be, nα), (⁹Be, 2nα), (⁹Be, 3nα), E(cm)=35-51 MeV; measured σ; deduced complete and incomplete fusion excitation functions, barrier distributions, breakup effects.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0719.

1999HI11      Nucl.Phys. (Supplement) A654, 864c (1999)

D.J.Hinde, M.Dasgupta, C.R.Morton, A.C.Berriman, R.D.Butt, J.O.Newton

Insights into Nuclear Reactions Through Fusion Barrier Distribution Measurements

NUCLEAR REACTIONS ²³²Th(³²S, X), E(cm)=130-170 MeV; ²⁰⁸Pb(⁹Be, X), E(cm)=30-50 MeV; measured fusion σ, fission fragment mass distributions; deduced fusion barrier distribution, reaction mechanism features.

doi: 10.1016/S0375-9474(00)88562-0
Citations: PlumX Metrics

1985ME17      Z.Phys. B61, 267 (1985)

H.Metzner, R.Sielemann, S.Klaumunzer, R.Butt, W.Semmler

Intrinsic Point Defects in Niobium: Trapping at ¹⁰⁰Pd and ¹¹¹In impurities observed by PAC

RADIOACTIVITY ¹⁰⁰Pd(EC) [from ⁹³Nb(¹²C, 5n)¹⁰⁹Ag(β⁺+EC)-decay, E=100 MeV; ⁹³Nb(¹¹B, 4n), E=75 MeV]; ¹¹¹In(EC) [from ⁹³Nb(²²Ne, 4n)¹¹¹Sb → ¹¹¹Sn(β⁺+EC)-decay, E=100 MeV]; measured γγ(θ, H, t).

doi: 10.1007/BF01317794
Citations: PlumX Metrics

1979KE03      Z.Phys. A290, 229 (1979)

R.Keitel, H.H.Bertschat, R.Butt, H.Grawe, H.Haas, D.Hahn, S.Klaumunzer, M.Menningen, R.Sielemann, W.-D.Zeitz

Magnetic Moments of Isomeric States in ¹⁴⁶Gd

NUCLEAR REACTIONS ¹¹⁰Pd(⁴⁰Ar, 4n), E=180 MeV; measured γ(θ, H, t). ¹⁴⁶Gd deduced levels, magnetic moments of isomeric states.

doi: 10.1007/BF01408119
Citations: PlumX Metrics

1973BL07      Z.Phys. 263, 169 (1973)

J.Bleck, R.Butt, K.H.Lindenberger, W.Ribbe, W.Zeitz

Lifetimes and Magnetic Moments of Two States in ⁶²Cu

NUCLEAR REACTIONS ⁶¹Ni(d, nγ), ⁶²Ni(p, nγ), Ed=6.5 MeV, Ep=5.8 MeV; measured Eγ, γ(t), γγ-coin, γγ(θ, H, t). ⁶²Cu levels deduced T_1/2, μ.

doi: 10.1007/BF01402165
Citations: PlumX Metrics

1972BL15      Phys.Rev.Lett. 29, 1371 (1972)

J.Bleck, R.Butt, H.Haas, W.Ribbe, W.Zeitz

In-Beam Measurements of the Nuclear Quadrupole Interaction in Cadmium Metal

NUCLEAR REACTIONS ¹¹⁰Cd(d, pγ), E=6.4 MeV; measured dγ(θ, H, t) in Cd metal; deduced nuclear quadrupole interaction.

doi: 10.1103/PhysRevLett.29.137
Citations: PlumX Metrics

1972BL16      Nucl.Phys. A197, 620 (1972)

J.Bleck, R.Butt, K.H.Lindenberger, W.Ribbe, W.Zeitz

Magnetic Moments, Lifetimes, and γ-Decay of the Lowest 6^- States in ⁶⁴Cu and ⁶⁶Cu

NUCLEAR REACTIONS ^63,65Cu(d, p), Ed=6.5 MeV; measured Eγ, γγ-coin, dγ(θ, H, t). ^64,66Cu deduced levels, J, π, T_1/2, g.

doi: 10.1016/0375-9474(72)91033-0
Citations: PlumX Metrics

Note: The following list of authors and aliases matches the search parameter R.Butt: , R.D.BUTT