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Search: Author = D.R.Haenni

Found 34 matches.

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1995SC38      Nucl.Phys. A592, 130 (1995)

R.P.Schmitt, L.Cooke, H.Dejbakhsh, D.R.Haenni, T.Shutt, B.K.Srivastava, H.Utsunomiya

K-Equilibration and Spin Enhancement Effects in 120 MeV 16O- and 214 MeV 32S-Induced Fission

NUCLEAR REACTIONS 174Yb, 208Pb, 209Bi, 232Th, 238U(16O, F), E=120 MeV; 208Pb, 232Th(32S, F), E=214 MeV; measured γ-multiplicity following fission, σ(fragment θ) in some cases; deduced collective modes excitation, K-equilibration, spin enhancement effects related features.

doi: 10.1016/0375-9474(95)00178-4
Citations: PlumX Metrics

1990CA22      Nucl.Phys. A513, 125 (1990)

M.P.Carpenter, C.R.Bingham, L.H.Courtney, V.P.Janzen, A.J.Larabee, Z.-M.Liu, L.L.Riedinger, W.Schmitz, R.Bengtsson, T.Bengtsson, W.Nazarewicz, J.-Y.Zhang, J.K.Johansson, D.G.Popescu, J.C.Waddington, C.Baktash, M.L.Halbert, N.R.Johnson, I.Y.Lee, Y.S.Schutz, J.Nyberg, A.Johnson, R.Wyss, J.Dubuc, G.Kajrys, S.Monaro, S.Pilotte, K.Honkanen, D.G.Sarantites, D.R.Haenni

Alignment Processes and Shape Variation in 184Pt

NUCLEAR REACTIONS 154Sm(34S, 4n), E=163 MeV; 172Yb(16O, 4n), E=91 MeV; measured Eγ, Iγ, γ(θ), γγ-coin. 184Pt deduced levels, J, π, γ-branching. Enriched targets, array of Compton-suppression Ge detectors. Total routhian surface calculations.

doi: 10.1016/0375-9474(90)90346-N
Citations: PlumX Metrics

1990UT02      Nucl.Phys. A511, 379 (1990)

H.Utsunomiya, Y.-W.Lui, L.Cooke, H.Dejbakhsh, D.R.Haenni, P.Heimberg, A.Ray, B.K.Srivastava, R.P.Schmitt, T.Udagawa

Continuous Distribution of αt Relative Kinetic Energies in 7Li Breakup Reactions

NUCLEAR REACTIONS 208Pb(7Li, 7Li), (7Li, 7Li'), E=63 MeV; measured σ(θ). 208Pb, 144Sm, 120Sn, 58Ni(7Li, αt), E=63 MeV; measured σ(Eα, Et, θ); deduced astrophysical implications. Enriched targets. Enge split-pole spectrograph. DWBA analysis.

doi: 10.1016/0375-9474(90)90165-I
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1990UT03      Phys.Rev.Lett. 65, 847 (1990); Erratum Phys.Rev.Lett. 69, 863 (1992)

H.Utsunomiya, Y.-W.Lui, D.R.Haenni, H.Dejbakhsh, L.Cooke, B.K.Srivastava, W.Turmel, D.O'Kelly, R.P.Schmitt, D.Shapira, J.Gomez del Campo, A.Ray, T.Udagawa

Breakup of 7Li Near the α-t Threshold and a Possible Probe of Radiative-Capture Processes

NUCLEAR REACTIONS, ICPND 27Al, 58Ni, 120Sn, 144Sm, 208Pb(7Li, tα), E=42, 63 MeV; measured σ(θ(7Li)) vs E(αt); deduced B(λ), astrophysical S-factor vs E.

doi: 10.1103/PhysRevLett.65.847
Citations: PlumX Metrics

1988SC15      Nucl.Phys. A487, 370 (1988)

R.P.Schmitt, D.R.Haenni, L.Cooke, H.Dejbakhsh, G.Mouchaty, T.Shutt, H.Utsunomiya

Probing the Tilting Mode in Fission with γ-Ray Multiplicity Techniques

NUCLEAR REACTIONS 206Pb, 209Bi, 232Th, 238U(α, F), E=43 MeV; measured fission fragment σ(θ), γ-ray multiplicities. Statistical model comparisons.

doi: 10.1016/0375-9474(88)90619-7
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1460.

1988UT01      Phys.Lett. 211B, 24 (1988)

H.Utsunomiya, R.P.Schmitt, Y.-W.Lui, D.R.Haenni, H.Dejbakhsh, L.Cooke, P.Heimberg, A.Ray, T.Tamura, T.Udagawa

Observation of α-t Continuum States with Relative Energies of 0-2 MeV in 7Li Breakup Reactions

NUCLEAR REACTIONS 208Pb, 144Sm, 120Sn, 58Ni(7Li, tα), E=63 MeV; measured αt-coin, σ(θ, θ(αt)) vs E(αt); deduced αt-continuum states. 208Pb, 120Sn(7Li, 7Li'), E=63 MeV; measured σ(θ) following Coulomb excitation.

doi: 10.1016/0370-2693(88)90800-3
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1987NA01      Phys.Rev. C35, 149 (1987)

M.N.Namboodiri, R.K.Choudhury, L.Adler, J.D.Bronson, D.Fabris, U.Garg, P.L.Gonthier, K.Hagel, D.R.Haenni, Y.W.Lui, Z.Majka, G.Mouchaty, T.Murakami, J.B.Natowitz, G.Nebbia, R.P.Schmitt, S.Simon, J.P.Sullivan, D.H.Youngblood

Linear Momentum and Angular Momentum Transfer in the Reactions of 16O with 154Sm

NUCLEAR REACTIONS 154Sm(16O, X), E=180, 310 MeV; measured (ejectile)γ-, (residue)γ-coin, σ(fragment θ, E), < Eγ > vs fragment for X=6,7Li, 7,9,10Be, 10,11B, 11,12,13,14C, 13,14,15N, 15,16,17O; deduced angular, linear momentum transfer correlation.

doi: 10.1103/PhysRevC.35.149
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1987SC17      Phys.Lett. 192B, 44 (1987)

R.P.Schmitt, H.Dejbakhsh, D.R.Haenni, G.Mouchaty, T.Shutt, M.Tirion

Exploring the K-Distribution in Fission

NUCLEAR REACTIONS 206Pb, 209Bi, 232Th, 238U(α, F), E=42.9 MeV; measured fission fragment σ(θ), γ multiplicity vs θ(fragment); deduced fragment spin angle dependence. Transition state model.

doi: 10.1016/0370-2693(87)91139-7
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1986HA09      Phys.Rev. C33, 1543 (1986)

D.R.Haenni, H.Dejbakhsh, R.P.Schmitt, G.Mouchaty

Evidence for h11/2 Neutron Alignment in Band Crossings for the Transitional Mass 100 Nuclei

NUCLEAR REACTIONS 100Mo(7Li, xnypzα), E=45 MeV; measured Eγ, Iγ, γ(θ), γγ-, (particle)γ-, (particle)γγ-coin. 101,102,103,104Ru, 101Tc, 103Rh deduced levels, J, π, γ-branching, band structure.

doi: 10.1103/PhysRevC.33.1543
Citations: PlumX Metrics

1985SC12      Z.Phys. A321, 411 (1985)

R.P.Schmitt, G.Mouchaty, D.R.Haenni, M.Tirion

Angular Momentum Bearing Modes and Nuclear Structure Effects in 12C-Induced Fission

NUCLEAR REACTIONS 174Yb, 197Au, 209Bi(12C, F), E=100 MeV; 154Sm, 174Yb, 197Au, 209Bi(12C, F), E=180 MeV; measured average γ multiplicity; deduced fission fragment angular momenta. Statistical model comparison.

doi: 10.1007/BF01411972
Citations: PlumX Metrics

1984MO10      Z.Phys. A316, 285 (1984)

G.Mouchaty, D.R.Haenni, S.Nath, U.Garg, R.P.Schmitt

Angular Momentum Alignment in the Reaction 154Sm + 214 MeV 32S

NUCLEAR REACTIONS 154Sm(32S, X), E=214 MeV; measured (particle)γ-, (particle)γγ-coin, continuum γ-multiplicities, γ(θ), fragment spin alignment probability vs total kinetic energy loss; deduced target-like fragment stretched E2 transition characteristics.

doi: 10.1007/BF01439901
Citations: PlumX Metrics

1984MU08      Nucl.Phys. A417, 189 (1984)

M.Muller-Veggian, H.Beuscher, D.R.Haenni, R.M.Lieder, A.Neskakis

Study of the Level Structure in 134Ce

NUCLEAR REACTIONS 134Ba(α, 4n), E=60, 61 MeV; 135Ba(α, 5n), E=70 MeV; 136Ba(α, 6n), E=85 MeV; measured Eγ, Iγ, σ(Eγ, θ), γγ(t), αγ(t), I(ce), γ(ce)-coin. 134Ce deduced levels, J, π, T1/2, ICC. Ge(Li) detectors, orange β-spectrometer, enriched targets.

doi: 10.1016/0375-9474(84)90504-9
Citations: PlumX Metrics

1984SC31      Nucl.Phys. A427, 614 (1984)

R.P.Schmitt, G.Mouchaty, D.R.Haenni

Angular Momentum Transfer in 12C-, 20Ne- and 40Ar-Induced Fission

NUCLEAR REACTIONS 174Yb, 182W, 197Au(12C, F), E=140 MeV; 154Sm, 174Yb, 197Au(20Ne, F), E=164 MeV; Ag, 154Sm(40Ar, F), E=240 MeV; measured fission fragment mass, energy distributions, γ-multiplicities. Statistical model.

doi: 10.1016/0375-9474(84)90233-1
Citations: PlumX Metrics

1984WE17      Phys.Rev. C30, 1532 (1984)

J.C.Wells, N.R.Johnson, J.Hattula, M.P.Fewell, D.R.Haenni, I.Y.Lee, F.K.McGowan, J.W.Johnson, L.L.Riedinger

Evidence for Collective Behavior in 128Ce from Lifetime Measurements

NUCLEAR REACTIONS 92Zr(40Ar, 4n), E=159 MeV; measured Eγ, Iγ, γ(t), Doppler shift, recoil. 128Ce deduced yrast level T1/2, J, π, band characteristics, B(E2). Cranked self-consistent theory.

doi: 10.1103/PhysRevC.30.1532
Citations: PlumX Metrics

1983SC27      Phys.Lett. 127B, 327 (1983)

R.P.Schmitt, G.Mouchaty, D.R.Haenni, P.Bogucki

Possible Evidence for the Statistical Excitation of Collective Modes in Heavy Ion Induced Fission

NUCLEAR REACTIONS 154Sm(40Ar, F), E=240 MeV; 182W(12C, F), E=140 MeV; measured γ-multiplicity vs fission fragment mass; deduced average total fragment spin vs mass, possible statistical collective mode excitation. Two-sphere model, thermal excitation mechanism.

doi: 10.1016/0370-2693(83)91010-9
Citations: PlumX Metrics

1982HA13      Phys.Rev. C25, 1699 (1982)

D.R.Haenni, T.T.Sugihara, R.P.Schmitt, G.Mouchaty, U.Garg

In-Beam Spectroscopy of Neutron-Rich Nuclei: New application of massive-transfer reactions

NUCLEAR REACTIONS, ICPND 100Mo(7Li, 2np), (7Li, nd), (7Li, t), 154Sm(7Li, 4np), (7Li, 3nd), (7Li, 2nt), E=48 MeV; measured Eγ, Iγ, γγ-, γ(particle)-coin. 100Mo(7Li, 2np), (7Li, 3np), (7Li, 4np), (7Li, nd), (7Li, 2nd), (7Li, 3nd), (7Li, t), (7Li, nt), (7Li, 2nt), E=48 MeV; measured yield vs excitation energy. 104Ru, 156Gd deduced levels.

doi: 10.1103/PhysRevC.25.1699
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1982MO26      Nucl.Phys. A391, 269 (1982)

T.Morek, H.Beuscher, B.Bochev, D.R.Haenni, T.Kutsarova, R.M.Lieder, M.Muller-Veggian, A.Neskakis

High-Spin States in 133La

NUCLEAR REACTIONS 133Cs(α, xn), E=50-70 MeV; measured Eγ, Iγ, σ(Eγ, θ), γγ(t), αγ(t). 133La deduced levels, J, δ, π. Ge(Li) detectors.

doi: 10.1016/0375-9474(82)90610-8
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1982NE05      Nucl.Phys. A390, 53 (1982)

A.Neskakis, R.M.Lieder, H.Beuscher, Y.Gono, D.R.Haenni, M.Muller-Veggian

Investigation of High-Spin States in Odd-Odd 190,192,194Au Nuclei

NUCLEAR REACTIONS 191,193Ir(α, 5n), E=63, 61.5 MeV; 193Ir(α, 3n), E=40 MeV; measured E(γ), I(γ), σ(Eγ, θ), αγ(t), γγ(t). 190,192,194Au deduced levels, J, π, T1/2, ICC, B(λ) ratios, δ, γ-branching. Enriched targets, Ge(Li) detectors.

doi: 10.1016/0375-9474(82)90606-6
Citations: PlumX Metrics

1981HA25      Nucl.Phys. A365, 229 (1981)

D.R.Haenni, H.Beuscher, B.Bochev, T.Kutsarova, T.Morek, M.Muller-Veggian, A.Neskakis, C.Mayer-Boricke

A New 5.0 ns Isomer in 144Eu

NUCLEAR REACTIONS 144Sm(α, 3np), E=50 MeV; measured γ(θ), Eγ, Iγ, αγ(t), γγ-coin, γγ(t); 147Sm(p, 4n), E=40 MeV; measured I(ce), Iγ(θ). 144Eu deduced levels, isomer J, π, T1/2, configuration, ICC, γ-multipolarity. Ge(Li) detector, orange β-spectrometer, enriched targets.

doi: 10.1016/0375-9474(81)90295-5
Citations: PlumX Metrics

1981LI17      Phys.Scr. 24, 123 (1981)

R.M.Lieder, B.Bochev, T.Kutsarova, H.Beuscher, D.R.Haenni, T.Morek, M.Muller-Veggian, A.Neskakis, C.Mayer-Boricke, J.P.Didelez

Study of α-Induced Non-Equilibrium Reactions with Particle-γ Coincidences

NUCLEAR REACTIONS 209Bi(α, xnp), E=45-75 MeV; measured pγ-coin, σ(θ, Ep) for x=0, 1, 2, 3, 4. Prompt particle emission model.

doi: 10.1088/0031-8949/24/1B/008
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1980DI09      Nucl.Phys. A341, 421 (1980)

J.-P.Didelez, R.M.Lieder, H.Beuscher, D.R.Haenni, H.Machner, M.Muller-Veggian, C.Mayer-Boricke

Experimental Study of Excitation Functions and Isomer Ratios for 211,212Po

NUCLEAR REACTIONS 208Pb(α, n), 209Bi(α, np), (α, p), (α, n), E=45-172.5 MeV; measured σ(E), isomeric σ ratio; deduced reaction mechanism.

doi: 10.1016/0375-9474(80)90375-9
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0208.

1980HJ01      Phys.Rev.Lett. 45, 878 (1980)

S.A.Hjorth, I.Y.Lee, J.R.Beene, C.Roulet, D.R.Haenni, N.R.Johnson, F.E.Obenshain, G.R.Young

Interpretation of the 21-ns Isomer in 190Hg as (νi13/2)2 from a g-Factor Measurement

NUCLEAR REACTIONS 181Ta(14N, 5n), E=94 MeV; measured Iγ(θ, H, t). 190Hg level deduced g, configuration, T1/2. Shell model.

doi: 10.1103/PhysRevLett.45.878
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1980MO27      Z.Phys. A298, 267 (1980)

T.Morek, H.Beuscher, B.Bochev, D.R.Haenni, R.M.Lieder, T.Kutsarova, M.Muller-Veggian, A.Neskakis

Isomeric States in 134Ba

RADIOACTIVITY 134Ba [from 133Cs(α, 2np), E=55 MeV]; measured Eγ, Iγ, γ(θ), γγ-coin, γγ(t). 134Ba deduced levels, T1/2, J, π, ICC, γ-multipolarity, configurations.

NUCLEAR REACTIONS 134Ba(p, p'), E=17 MeV; measured Eγ, Iγ, γ(θ), γγ-coin, γγ(t). 134Ba deduced levels, T1/2, J, π, ICC, γ-multipolarity, configurations.

doi: 10.1007/BF01425156
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1980MU10      Nucl.Phys. A344, 89 (1980)

M.Muller-Veggian, H.Beuscher, D.R.Haenni, R.M.Lieder, A.Neskakis, C.Mayer-Boricke

Investigation of High-Spin States in 138,139Nd

NUCLEAR REACTIONS 140Ce(α, xn), E=85 MeV; measured Eγ, Iγ, σ(Eγ, θ), γγ(t), αγ(t). 138,139Nd deduced levels, J, π. Enriched targets. Ge(Li) detectors.

doi: 10.1016/0375-9474(80)90433-9
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1979HA48      Nucl.Phys. A331, 141 (1979)

D.R.Haenni, H.Beuscher, R.M.Lieder, M.Muller-Veggian, A.Neskakis, C.Mayer-Boricke

Weak Coupling and High-Spin States in 145Eu

NUCLEAR REACTIONS 144Sm(α, 2npγ), E=50 MeV; measured Eγ, Iγ(θ), γγ(t), αγ(t). 145Eu deduced levels J, π, T1/2. Ge(Li) detectors. Enriched target.

doi: 10.1016/0375-9474(79)90306-3
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1979MU03      Z.Phys. A290, 43 (1979)

M.Muller-Veggian, H.Beuscher, R.M.Lieder, Y.Gono, D.R.Haenni, A.Neskakis, C.Mayer-Boricke

10+ Isomers Observed in Even-Even 78-Neutron Nuclei

NUCLEAR REACTIONS 140Ce(α, 6n), E=86 MeV; 142Nd(α, 6n), E=90 MeV; measured Eγ, Iγ, γ(θ), γγ-coin, attenuation coefficients. 138Nd, 140Sm deduced levels. 138Nd, 140Sm, 136Ce levels deduced T1/2, J, π, B(E2), configuration.

1979NE01      Phys.Lett. 80B, 194 (1979)

A.Neskakis, R.M.Lieder, H.Beuscher, Y.Gono, D.R.Haenni, M.Muller-Veggian, C.Mayer-Boricke

Observation of Rotation-Aligned Bands in the Odd-Odd Nuclei 190,192,194Au

NUCLEAR REACTIONS 191,193Ir(α, xn), E=40, 61.5, 63 MeV; measured Eγ, Iγ, γ-branching for X=3, 5. 190,192,194Au deduced levels, δ, rotational-aligned bands based on (11-), (12-) isomers. Configurations in agreement with triaxial-rotor-plus-particle model.

doi: 10.1016/0370-2693(79)90196-5
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1978LI14      Phys.Rev.Lett. 41, 742 (1978)

R.M.Lieder, J.P.Didelez, H.Beuscher, D.R.Haenni, M.Muller-Veggian, A.Neskakis, C.Mayer-Boricke

Observation of a New Isomer in 212Po

NUCLEAR REACTIONS 209Bi(α, p), E ≈ 45 MeV; measured σ, pγ(t), Eγ, Eα, αγ-coin, pγ-coin, α(t). 212Po deduced levels, J, π, T1/2.

doi: 10.1103/PhysRevLett.41.742
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1978MA43      Nucl.Phys. A311, 395 (1978)

M.A.J.Mariscotti, H.Beuscher, W.F.Davidson, Y.Gono, H.M.Jager, R.M.Lieder, M.Muller-Veggian, A.Neskakis, D.R.Haenni, D.R.Zolnowski

In-Beam Study of 144Gd

NUCLEAR REACTIONS 144Sm(α, 4nγ), E=60-110 MeV; measured Eγ, Iγ, σ(Eα, Eγ, θ(γ), t), γγ-coin, I(ce). 144Gd deduced levels, J, π, T1/2, ICC, δ. Ge(Li), Si(Li) detectors, steering magnet, β-spectrometer.

doi: 10.1016/0375-9474(78)90521-3
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1977HA21      Phys.Rev. C16, 120 (1977)

D.R.Haenni, T.T.Sugihara

Negative-Parity Yrast States in 150Gd

RADIOACTIVITY 150Tb [from 151Eu(3He, 4n)]; measured I(ce). 150Gd level deduced J, π, ICC. Ge(Li), Si(Li) detectors, enriched targets.

NUCLEAR REACTIONS 150Sm(α, 4n), E=45-55 MeV; 152Sm(α, 6n), E=77 MeV; measured Eγ, Iγ(E, θ, t), I(ce), γγ-coin. 150Gd deduced levels, J, π, ICC, λ.

doi: 10.1103/PhysRevC.16.120
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1977HA31      Phys.Rev. C16, 1129 (1977)

D.R.Haenni, T.T.Sugihara

Vibrational Levels in the 86-Neutron Nucleus 150Gd

RADIOACTIVITY 150Tb [from 151Eu(3He, 4n)]; measured Eγ, Iγ, γγ-, βγ-coin, I(ce), Eβ, T1/2; deduced log ft, Q. 150Gd deduced levels, J, π, ICC, B(λ). Enriched target. Ge(Li), Si(Li) detectors.

doi: 10.1103/PhysRevC.16.1129
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1976BE12      Phys.Rev.Lett. 36, 1128 (1976)

H.Beuscher, D.R.Zolnowski, D.R.Haenni, T.T.Sugihara

High-Spin Isomeric States in 202,204,206Po

NUCLEAR REACTIONS 197Au(10B, xnγ), (11B, xnγ), 206Pb(α, xnγ), E=50 MeV; 208Pb(α, xnγ), E=77 MeV; measured Eγ, Iγ, γγ(t), γ(θ). 202,204,206Po deduced levels, J, π, T1/2.

doi: 10.1103/PhysRevLett.36.1128
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1973BO13      Phys.Rev. C7, 1686 (1973)

W.W.Bowman, D.R.Haenni, T.T.Sugihara

Short-Lived Isomers of 148Tb and 147Tb

RADIOACTIVITY 147,148Tb; measured Eγ, Iγ, γγ-coin, T1/2. 148Gd deduced levels.

doi: 10.1103/PhysRevC.7.1686
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1972HA18      Phys.Rev. C5, 1113 (1972)

D.R.Haenni, T.T.Sugihara, W.W.Bowman

Decay of a New 5.8-min 150Tb Activity

RADIOACTIVITY 150mTb; measured T1/2, Eγ, Iγ, γγ-coin; deduced J, π, log ft. 150Gd deduced levels, J, π. Ge(Li) detectors.

doi: 10.1103/PhysRevC.5.1113
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