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NSR database version of May 24, 2024.

Search: Author = H.Maser

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2002BE18      Phys.Rev. C65, 035801 (2002)

D.Belic, C.Arlandini, J.Besserer, J.de Boer, J.J.Carroll, J.Enders, T.Hartmann, F.Kappeler, H.Kaiser, U.Kneissl, E.Kolbe, K.Langanke, M.Loewe, H.J.Maier, H.Maser, P.Mohr, P.von Neumann-Cosel, A.Nord, H.H.Pitz, A.Richter, M.Schumann, F.-K.Thielemann, S.Volz, A.Zilges

Photo-Induced Depopulation of the 180Tam Isomer via Low-Lying Intermediate States: Structure and astrophysical implications

NUCLEAR REACTIONS 180mTa(γ, γ'), E=0.8-3.1 MeV bremsstrahlung; measured delayed Eγ, Iγ, X-ray spectra; deduced activation yields. 180Ta deduced intermediate states energies, transition strengths. Astrophysical implications discussed. Comparisons with previous results, model predictions.

RADIOACTIVITY 180Ta(EC), (β-); measured T1/2.

doi: 10.1103/PhysRevC.65.035801
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2001VO13      Nucl.Phys. A688, 237c (2001)

P.von Neumann-Cosel, C.Arlandini, D.Belic, J.Besserer, J.de Boer, J.J.Carroll, J.Enders, T.Hartmann, F.Kappeler, H.Kaiser, U.Kneissl, M.Loewe, H.J.Maier, H.Maser, P.Mohr, A.Nord, H.H.Pitz, A.Richter, M.Schumann, S.Volz, A.Zilges

Photoactivation of 180mTa and s-Process Nucleosynthesis of Nature's Rarest Naturally Occuring Isotope

NUCLEAR REACTIONS 180Ta(γ, γ'), E=0.8-3.1 MeV; measured Eγ, σ; deduced 180Ta effective half-life under s-process conditions.

doi: 10.1016/S0375-9474(01)00706-0
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2000BR05      Phys.Rev. C61, 024309 (2000)

J.Bryssinck, L.Govor, V.Yu.Ponomarev, F.Bauwens, O.Beck, D.Belic, P.von Brentano, D.De Frenne, T.Eckert, C.Fransen, K.Govaert, R.-D.Herzberg, E.Jacobs, U.Kneissl, H.Maser, A.Nord, N.Pietralla, H.H.Pitz, V.Werner

Systematic Study of Electric Quadrupole Excitations in the Stable Even Mass Sn Nuclei

NUCLEAR REACTIONS 116,118,120,122,124Sn(γ, γ'), E=4.1 MeV bremsstrahlung; measured Eγ, Iγ. 116,118,120,122,124Sn deduced levels J, π, B(E1), B(E2).

doi: 10.1103/PhysRevC.61.024309
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2000BR33      Phys.Rev. C62, 014309 (2000)

J.Bryssinck, L.Govor, V.Yu.Ponomarev, F.Bauwens, O.Beck, D.Belic, P.von Brentano, D.De Frenne, C.Fransen, R.-D.Herzberg, E.Jacobs, U.Kneissl, H.Maser, A.Nord, N.Pietralla, H.H.Pitz, V.Werner

Search for the Electric Dipole Excitations to the 3s1/2 (x) [21+ (x) 31-] Multiplet in 117Sn

NUCLEAR REACTIONS 117Sn(γ, γ'), E=4.1 MeV bremsstrahlung; measured Eγ, Iγ(θ). 117Sn deduced levels, widths, excitation B(E1). Comparison with quasiparticle phonon model calculations.

doi: 10.1103/PhysRevC.62.014309
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1999BE65      Phys.Rev.Lett. 83, 5242 (1999)

D.Belic, C.Arlandini, J.Besserer, J.de Boer, J.J.Carroll, J.Enders, T.Hartmann, F.Kappeler, H.Kaiser, U.Kneissl, M.Loewe, H.J.Maier, H.Maser, P.Mohr, P.von Neumann-Cosel, A.Nord, H.H.Pitz, A.Richter, M.Schumann, S.Volz, A.Zilges

Photoactivation of 180Tam and Its Implications for the Nucleosynthesis of Nature's Rarest Naturally Occurring Isotope

NUCLEAR REACTIONS Ta, 180mTa(γ, γ'), E=0.8-3.1 MeV bremsstrahlung; measured ground-state production yield. Implications for s-process nucleosynthesis discussed. Enriched and natural targets.

doi: 10.1103/PhysRevLett.83.5242
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1999BR12      Phys.Rev. C59, 1930 (1999)

J.Bryssinck, L.Govor, D.Belic, F.Bauwens, O.Beck, P.von Brentano, D.De Frenne, T.Eckert, C.Fransen, K.Govaert, R.-D.Herzberg, E.Jacobs, U.Kneissl, H.Maser, A.Nord, N.Pietralla, H.H.Pitz, V.Yu.Ponomarev, V.Werner

Uniform Properties of Jπ = 1- Two-Phonon States in the Semimagic Even-Even Tin Isotopes 116, 118, 120, 122, 124Sn

NUCLEAR REACTIONS 116,118,120,122,124Sn(γ, γ'), E=4.1 MeV bremsstrahlung; measured Eγ, Iγ. 116,118,120,122,124Sn deduced levels, J, π, excitation B(M1), two-phonon excitations. Quasiparticle-phonon model calculations.

doi: 10.1103/PhysRevC.59.1930
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1999FR06      Phys.Rev. C59, 2264 (1999)

C.Fransen, B.Krischok, O.Beck, J.Besserer, P.von Brentano, T.Eckert, R.-D.Herzberg, U.Kneissl, J.Margraf, H.Maser, A.Nord, N.Pietralla, H.H.Pitz, A.Zilges

Low-Lying Dipole Excitations in the Transitional Nuclei 190, 192Os

NUCLEAR REACTIONS 190,192Os(γ, γ'), E=4 MeV bremsstrahlung; measured Eγ, Iγ(θ). 190,192Os deduced levels, J, π, B(M1), dipole excitation strength distribution, scissors mode. Comparison with IBM-2 predictions.

doi: 10.1103/PhysRevC.59.2264
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1999LE31      Phys.Rev. C60, 024308 (1999)

H.Lehmann, A.Nord, A.E.de Almeida Pinto, O.Beck, J.Besserer, P.von Brentano, S.Drissi, T.Eckert, R.-D.Herzberg, D.Jager, J.Jolie, U.Kneissl, J.Margraf, H.Maser, N.Pietralla, H.H.Pitz

Dipole Excitations in the Vibrational Nucleus 112Cd

NUCLEAR REACTIONS 112Cd(γ, γ'), E=4.1 MeV bremsstrahlung; measured Eγ, Iγ. 112Cd deduced levels, J, π, decay branching ratios, B(M1), B(E1). Nuclear resonance fluorescence technique. Comparison with IBM calculations.

doi: 10.1103/PhysRevC.60.024308
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1999PO22      Phys.Rev.Lett. 83, 4029 (1999)

V.Yu.Ponomarev, J.Bryssinck, L.Govor, F.Bauwens, O.Beck, D.Belic, P.von Brentano, D.De Frenne, C.Fransen, R.-D.Herzberg, E.Jacobs, U.Kneissl, H.Maser, A.Nord, N.Pietralla, H.H.Pitz, V.Werner

Strong Fragmentation of Low-Energy Electromagnetic Excitation Strength in 117Sn

NUCLEAR REACTIONS 117Sn(γ, γ'), E=4.1 MeV bremsstrahlung; measured Eγ, integral elastic σ. 117Sn deduced fragmentation of low-energy electromagnetic excitation strength. Comparison with microscopic calculations. Nuclear resonance fluorescence technique.

doi: 10.1103/PhysRevLett.83.4029
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1998FR01      Phys.Rev. C57, 129 (1998)

C.Fransen, O.Beck, P.von Brentano, T.Eckert, R.-D.Herzberg, U.Kneissl, H.Maser, A.Nord, N.Pietralla, H.H.Pitz, A.Zilges

Systematics of Low-Lying Electric Dipole Excitations in the A ≈ 130-200 Mass Region

NUCLEAR STRUCTURE Z=56-76; compiled, analyzed low-lying B(E1) data; deduced shell, deformation effects.

doi: 10.1103/PhysRevC.57.129
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1998NO09      Phys.Rev. C57, 3459 (1998)

A.Nord, S.W.Yates, O.Beck, D.Belic, P.von Brentano, T.Eckert, C.Fransen, R.-D.Herzberg, U.Kneissl, H.Maser, N.Pietralla, H.H.Pitz, V.Werner

Low-Lying Dipole Strength in 207Pb

NUCLEAR REACTIONS 207Pb(γ, γ'), E=4.1 MeV bremsstrahlung; measured Eγ, Iγ. 207Pb deduced levels dipole strengths. Nuclear resonance flourescence technique.

doi: 10.1103/PhysRevC.57.3459
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1998PI03      Phys.Rev. C58, 184 (1998)

N.Pietralla, P.von Brentano, R.-D.Herzberg, U.Kneissl, N.Lo Iudice, H.Maser, H.H.Pitz, A.Zilges

Systematics of the Excitation Energy of the 1+ Scissors Mode and Its Empirical Dependence on the Nuclear Deformation Parameter

NUCLEAR STRUCTURE Z=56-78; analyzed scissors mode excitation energy; deduced deformation dependence.

doi: 10.1103/PhysRevC.58.184
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1998PI06      Phys.Rev. C58, 796 (1998)

N.Pietralla, D.Belic, P.von Brentano, C.Fransen, R.-D.Herzberg, U.Kneissl, H.Maser, P.Matschinsky, A.Nord, T.Otsuka, H.H.Pitz, V.Werner, I.Wiedenhover

Isovector Quadrupole Excitations in the Valence Shell of the Vibrator Nucleus 136Ba: Evidence from photon scattering experiments

NUCLEAR REACTIONS 136Ba(γ, γ'), E=4 MeV bremsstrahlung; measured Eγ, Iγ(θ). 136Ba deduced levels J, π, widths, B(λ).

NUCLEAR STRUCTURE 136Ba calculated levels, J, π, E2 strength distribution; deduced fragmentation of 2+ state. IBM-2, Q-phonon scheme.

doi: 10.1103/PhysRevC.58.796
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1998WO06      Phys.Rev. C58, 765 (1998)

A.Wolpert, O.Beck, D.Belic, J.Besserer, P.von Brentano, T.Eckert, C.Fransen, R.-D.Herzberg, U.Kneissl, J.Margraf, H.Maser, A.Nord, N.Pietralla, H.H.Pitz

Low-Lying Dipole Excitations in the Heavy, Odd-Mass Nucleus 181Ta

NUCLEAR REACTIONS 181Ta(γ, γ'), E=2.7, 4.1 MeV bremsstrahlung; measured Eγ, Iγ. 181Ta deduced levels, B(E1), B(M1), gΓ0. Nuclear resonance flourescence.

doi: 10.1103/PhysRevC.58.765
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1997BE43      Phys.Rev. C56, 1276 (1997)

J.Besserer, O.Beck, P.von Brentano, T.Eckert, R.-D.Herzberg, D.Jager, U.Kneissl, J.Margraf, H.Maser, A.Nord, N.Pietralla, H.H.Pitz, A.Zilges

Fragmentation of Low-Lying Dipole Strength in the Odd-Mass Nucleus 133Cs

NUCLEAR REACTIONS 133Cs(γ, γ'), E ≤ 4.1 MeV bremsstrahlung; measured Eγ, Iγ. 133Cs deduced levels, J, π, Γ0, B(M1), B(E1), dipole strength distributions. Nuclear resonance flourescence technique. Data from other nuclei compared.

doi: 10.1103/PhysRevC.56.1276
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1997EC01      Phys.Rev. C56, 1256 (1997); Erratum Phyhs.Rev. C57, 1007 (1998)

T.Eckert, O.Beck, J.Besserer, P.von Brentano, R.Fischer, R.-D.Herzberg, U.Kneissl, J.Margraf, H.Maser, A.Nord, N.Pietralla, H.H.Pitz, S.W.Yates, A.Zilges

Dipole Excitations in the Transitional Nucleus 144Nd Studied in Photon Scattering Experiments

NUCLEAR REACTIONS 144Nd(γ, γ'), E ≤ 4.1 MeV bremsstrahlung; measured Eγ, Iγ(θ). 144Nd deduced levels, J, π, Γ0, B(M1), B(E1), dipole strength distributions, two-phonon excitation. Nuclear resonance flourescence technique, data from other nuclei compared.

doi: 10.1103/PhysRevC.56.1256
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1997HE16      Phys.Rev. C56, 2484 (1997)

R.-D.Herzberg, C.Fransen, R.Fischer, O.Beck, D.Belic, J.Besserer, P.von Brentano, T.Eckert, U.Kneissl, B.Krischok, J.Margraf, H.Maser, A.Nord, N.Pietralla, H.H.Pitz, A.Wolpert, A.Zilges

Observation of an Octupole × Quasiparticle Band in 175Lu using Photon Scattering Experiments

NUCLEAR REACTIONS 175Lu(γ, γ'), E=2.6, 4.1 MeV bremsstrahlung; measured Eγ, Iγ. 175Lu deduced levels, J, π, branching ratios, B(E1) vs E, transition Γ, evidence for octupole vibration. Nuclear resonance fluorescence technique.

doi: 10.1103/PhysRevC.56.2484
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1997PI08      Nucl.Phys. A618, 141 (1997)

N.Pietralla, O.Beck, J.Besserer, P.von Brentano, T.Eckert, R.Fischer, C.Fransen, R.-D.Herzberg, D.Jager, R.V.Jolos, U.Kneissl, B.Krischok, J.Margraf, H.Maser, A.Nord, H.H.Pitz, M.Rittner, A.Schiller, A.Zilges

The Scissors Mode and Other Magnetic and Electric Dipole Excitations in the Transitional Nuclei 178,180Hf

NUCLEAR REACTIONS 178,180Hf(γ, γ'), E=4 MeV bremsstrahlung; measured Eγ, Iγ(θ). 178,180Hf deduced levels, J, decay widths, branching ratios, Γ0, B(λ). Scissors mode, M1 sum rules, electric dipole excitations, octupole vibrational bands, K-mixing. Nuclear resonance fluorescence technique.

doi: 10.1016/S0375-9474(97)00054-7
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1996MA18      Phys.Rev. C53, 2749 (1996)

H.Maser, S.Lindenstruth, I.Bauske, O.Beck, P.von Brentano, T.Eckert, H.Friedrichs, R.D.Heil, R.-D.Herzberg, A.Jung, U.Kneissl, J.Margraf, N.Pietralla, H.H.Pitz, C.Wesselborg, A.Zilges

Systematics of Low-Lying Dipole Excitations in the Deformed Even-Even Nuclei 164,166,168,170Er

NUCLEAR REACTIONS 164,166,168,170Er(γ, γ'), E ≤ 4.1 MeV bremsstrahlung; measured Eγ, Iγ, asymmetry. 164,166,168,170Er deduced levels, J, π, K, Γ0, B(λ). Enriched targets.

doi: 10.1103/PhysRevC.53.2749
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1996MA55      Phys.Rev. C54, R2129 (1996)

H.Maser, N.Pietralla, P.von Brentano, R.-D.Herzberg, U.Kneissl, J.Margraf, H.H.Pitz, A.Zilges

Observation of the 1+ Scissors Mode in the γ-Soft Nucleus 134Ba

NUCLEAR REACTIONS 134Ba(γ, γ'), E ≤ 4.1 MeV bremsstrahlung; measured Eγ, Iγ, σ(E, θ), γ polarization. 134Ba deduced levels, J, π, B(λ), radiative width ratios. Ge(Li) detector, Compton polarimeter. Sum rule, interacting boson model.

doi: 10.1103/PhysRevC.54.R2129
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1996NO10      Phys.Rev. C54, 2287 (1996)

A.Nord, A.Schiller, T.Eckert, O.Beck, J.Besserer, P.von Brentano, R.Fischer, R.-D.Herzberg, D.Jager, U.Kneissl, J.Margraf, H.Maser, N.Pietralla, H.H.Pitz, M.Rittner, A.Zilges

Systematic Study of the Fragmentation of Low-Lying Dipole Strength in Odd-A Rare Earth Nuclei Investigated in Nuclear Resonance Fluorescence Experiments

NUCLEAR REACTIONS 155Gd, 159Tb(γ, γ'), E ≤ 4.1 MeV bremsstrahlung; measured Eγ, Iγ. 155Gd, 159Tb deduced levels, (gΓ0), B(λ). Enriched targets. Other nuclei dipole fragmentation data considered.

doi: 10.1103/PhysRevC.54.2287
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1996ST40      Nucl.Instrum.Methods Phys.Res. A381, 443 (1996)

N.Stritt, J.Jolie, H.Maser, H.H.Pitz

A MeV Tunable Gamma-Ray Source by Compton Scattering

NUCLEAR REACTIONS 48Ti(n, γ), E=thermal; measured Compton scattered Eγ, Iγ(θ); deduced tunable γ-ray source application.

doi: 10.1016/S0168-9002(96)00532-3
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1995HE25      Nucl.Phys. A592, 211 (1995)

R.-D.Herzberg, I.Bauske, P.von Brentano, Th.Eckert, R.Fischer, W.Geiger, U.Kneissl, J.Margraf, H.Maser, N.Pietralla, H.H.Pitz, A.Zilges

Lifetimes of Two-Phonon 1- States in Even N = 82 Nuclei

NUCLEAR REACTIONS 138Ba(γ, γ'), 140Ce(γ, γ'), E=4.1 MeV bremsstrahlung; measured Eγ, Iγ. 138Ba, 140Ce deduced levels, J, decay width, branching ratios, Γ0, B(λ), T1/2, configuration. Nuclear resonance fluorescence technique. Two-phonon, 2+ (x) 3- states in N=82 nuclei reviewed.

doi: 10.1016/0375-9474(95)00303-I
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1995MA69      Phys.Rev. C52, 2429 (1995)

J.Margraf, T.Eckert, M.Rittner, I.Bauske, O.Beck, U.Kneissl, H.Maser, H.H.Pitz, A.Schiller, P.von Brentano, R.Fischer, R.-D.Herzberg, N.Pietralla, A.Zilges, H.Friedrichs

Systematics of Low-Lying Dipole Strengths in Odd and Even Dy and Gd Isotopes

NUCLEAR REACTIONS 160,162,164,161,163Dy, 160,156,157,158Gd(γ, γ'), E=4 MeV bremsstrahlung; measured Eγ, Iγ, γ asymmetry in some cases. 164,162,161,163,160Dy, 157Gd deduced levels, J, π, K, Γ0, B(λ). Enriched targets.

doi: 10.1103/PhysRevC.52.2429
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1995PI02      Phys.Rev. C51, 1021 (1995)

N.Pietralla, I.Bauske, O.Beck, P.von Brentano, W.Geiger, R.-D.Herzberg, U.Kneissl, J.Margraf, H.Maser, H.H.Pitz, A.Zilges

Absolute Level Widths in 27Al Below 4 MeV

NUCLEAR REACTIONS 27Al(γ, γ'), E < 4.2 MeV bremsstrahlung; measured Eγ, nuclear self absorption. 27Al deduced level widths, Γ, T1/2.

doi: 10.1103/PhysRevC.51.1021
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1995PI12      Phys.Rev. C52, R2317 (1995)

N.Pietralla, P.von Brentano, R.-D.Herzberg, U.Kneissl, J.Margraf, H.Maser, H.H.Pitz, A.Zilges

Correlation between Low-Lying M1 and E2 Strength in Heavy Rare Earth Nuclei

NUCLEAR STRUCTURE 142,146,148Nd, 144,148,150,152Sm, 154,156,158,160Gd, 160,162,164Dy, 164,166,168,170Er, 172,174,176Yb, 178Hf, 182,184,186W; analyzed B(M1); deduced deformation dependence of M1 transition strength, M1-E2 correlation, collectivity. Rare earth nuclei, scissors mode.

doi: 10.1103/PhysRevC.52.R2317
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1995ZI02      Phys.Rev. C52, R468 (1995)

A.Zilges, P.von Brentano, R.-D.Herzberg, U.Kneissl, J.Margraf, H.Maser, N.Pietralla, H.H.Pitz

Strong Dipole Excitations Around 1.8 MeV in 238U

NUCLEAR REACTIONS 238U(γ, γ'), E=1.5-2.0 MeV; measured Eγ, Iγ. 238U deduced levels, J, π, γ-multipolarity, K-quantum number, γ-branching, Γ0, T1/2, B(λ). High resolution strudy.

doi: 10.1103/PhysRevC.52.R468
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1994GE07      Nucl.Phys. A580, 263 (1994)

W.Geiger, Zs.Nemeth, I.Bauske, P.von Brentano, R.D.Heil, R.-D.Herzberg, U.Kneissl, J.Margraf, H.Maser, N.Pietralla, H.H.Pitz, C.Wesselborg, A.Zilges

Low-Lying Dipole Excitations in the Isotopes 113,114Cd

NUCLEAR REACTIONS 113,114Cd(γ, γ'), E=4.3 MeV bremsstrahlung; measured Eγ, Iγ. 113,114Cd deduced levels, J, π, Γ0, B(E1), (Γ0)2/Γ. Enriched targets.

doi: 10.1016/0375-9474(94)90773-0
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1994MO18      Phys.Rev. C50, 2222 (1994)

R.Moreh, O.Beck, U.Kneissl, J.Margraf, H.Maser, H.H.Pitz, R.-D.Herzberg, N.Pietralla, A.Zilges

Width of the 3841-keV Level in 17O

NUCLEAR REACTIONS 17O(γ, γ'), E=4.7 MeV bremsstrahlung; measured scattering σ. 17O level deduced Γ. Enriched target.

doi: 10.1103/PhysRevC.50.2222
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1993MO23      Phys.Rev. C48, 2625 (1993)

R.Moreh, O.Beck, I.Bauske, W.Geiger, R.D.Heil, U.Kneissl, J.Margraf, H.Maser, H.H.Pitz

Precise Widths of the 3089 and 3684 keV Levels in 13C

NUCLEAR REACTIONS 13C(γ, γ'), E=4.7 MeV bremsstrahlung; measured precise Eγ, Iγ. 13C levels deduced Γ0. Self-absorption technique, enriched target, amorphous 13C absorbers.

doi: 10.1103/PhysRevC.48.2625
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