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NSR database version of April 11, 2024.

Search: Author = J.Hasper

Found 13 matches.

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2011SA03      Prog.Part.Nucl.Phys. 66, 363 (2011)

A.Sauerwein, M.Elvers, J.Endres, J.Hasper, A.Hennig, L.Netterdon, A.Zilges

Nuclear physics experiments for the astrophysical p process

NUCLEAR REACTIONS ¹⁴¹Pr(α, n), E=15 MeV; ⁹²Mo(p, γ), E=2.5-3.5 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced σ. Comparison with NON-SMOKER code calculations and other measurements.

doi: 10.1016/j.ppnp.2011.01.035
Citations: PlumX Metrics

2011SA48      Phys.Rev. C 84, 045808 (2011)

A.Sauerwein, H.-W.Becker, H.Dombrowski, M.Elvers, J.Endres, U.Giesen, J.Hasper, A.Hennig, L.Netterdon, T.Rauscher, D.Rogalla, K.O.Zell, A.Zilges

Determination of ¹⁴¹Prα, n)¹⁴⁴Pm cross sections at energies of relevance for the astrophysical p process using the γγ coincidence method

NUCLEAR REACTIONS ¹⁴¹Pr(α, n)¹⁴⁴Pm, E=11-15 MeV; measured Eγ, Iγ, γγ-coin, σ(E) by activation method; deduced astrophysical S factors, α+nucleus optical-model potential. Comparison with Hauser-Feshbach statistical model calculations. ¹⁴⁵Pm, ¹⁴⁸Gd(γ, α); calculated astrophysical reaction rates. Limitations of the global predictions of α+nucleus optical potentials at astrophysically relevant energies.

doi: 10.1103/PhysRevC.84.045808
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1959.

2010HA37      J.Phys.:Conf.Ser. 202, 012005 (2010)

J.Hasper, M.Bussing, M.Elvers, J.Endres, A.Zilges

In-beam experiments on (p, γ) and (a, γ) reactions for the astrophysical p process

NUCLEAR REACTIONS ⁹²Mo(p, γ), E=2400-3500 keV; measured in-beam Eγ, Iγ; deduced σ; calculated σ using TALYS and NON-SMOKER ciodes with several optical model potentials. ⁹²Mo(α, γ), E=9300 keV; measured in-beam Eγ, Iγ, γγ-coin.

doi: 10.1088/1742-6596/202/1/012005
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2009EN03      Phys.Rev. C 80, 034302 (2009)

J.Endres, D.Savran, A.M.van den Berg, P.Dendooven, M.Fritzsche, M.N.Harakeh, J.Hasper, H.J.Wortche, A.Zilges

Splitting of the pygmy dipole resonance in ¹³⁸Ba and ¹⁴⁰Ce observed in the (α, α'γ) reaction

NUCLEAR REACTIONS ¹³⁸Ba, ¹⁴⁰Ce(α, α'γ), E=136 MeV; measured Eγ, Iγ, αγ-coin, σ, angular correlations. ¹³⁸Ba, ¹⁴⁰Ce; deduced levels, J, π and E1 strength distributions for pygmy dipole resonances.

doi: 10.1103/PhysRevC.80.034302
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1737. Data from this article have been entered in the XUNDL database. For more information, click here.

2009HA13      Phys.Rev. C 79, 055807 (2009)

J.Hasper, D.Galaviz, S.Muller, A.Sauerwein, D.Savran, L.Schnorrenberger, K.Sonnabend, A.Zilges

Investigation of photoneutron reactions on ¹⁹²Os and ^{191, 193}Ir at energies of relevance for the astrophysical p process

NUCLEAR REACTIONS ^191,193Ir, ¹⁹²Os(γ, n)¹⁹⁰Ir/¹⁹¹Os/^191mOs/¹⁹²Ir, E=7600-9900 keV; measured Eγ, Iγ from radioactive decays of ¹⁹⁰Ir, ¹⁹¹Os, ^191mOs and ¹⁹²Ir; deduced yields and σ. Comparison with calculated using NON-SMOKER^WEB and TALYS codes.

doi: 10.1103/PhysRevC.79.055807
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2008BU21      Phys.Rev. C 78, 044309 (2008)

M.A.Bussing, M.Elvers, J.Endres, J.Hasper, A.Zilges, M.Fritzsche, K.Lindenberg, S.Muller, D.Savran, K.Sonnabend

Parity assignments in ¹⁴⁰Ce up to 7 MeV using Compton polarimetry

NUCLEAR REACTIONS ³²S, ¹⁴⁰Ce, ²⁰⁸Pb(γ, γ'), E=2-7 MeV; measured Eγ, γ-ray linear polarizations. ¹⁴⁰Ce; deduced levels, J, π, asymmetries. Bremsstrahlung beam, Compton polarimetry.

doi: 10.1103/PhysRevC.78.044309
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Data from this article have been entered in the XUNDL database. For more information, click here.

2008EL01      J.Phys.(London) G35, 014027 (2008)

M.Elvers, J.Hasper, S.Muller, D.Savran, L.Schnorrenberger, K.Sonnabend, A.Zilges

Nuclear astrophysics with real photons?the data acquisition system of the NEPTUN tagger setup

doi: 10.1088/0954-3899/35/1/014027
Citations: PlumX Metrics

2008HA04      Phys.Rev. C 77, 015803 (2008)

J.Hasper, S.Muller, D.Savran, L.Schnorrenberger, K.Sonnabend, A.Zilges

Investigation of photoneutron reactions close to and above the neutron emission threshold in the rare earth region

NUCLEAR REACTIONS ^148,150Nd, ¹⁵⁴Sm, ^154,160Gd(γ, n), E=7450-9800 keV [from Cu(e, γ)]; measured Eγ, Iγ, photon flux, normalization, cross section; deduced reaction rates.

doi: 10.1103/PhysRevC.77.015803
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2008SA19      Phys.Rev.Lett. 100, 232501 (2008)

D.Savran, M.Fritzsche, J.Hasper, K.Lindenberg, S.Muller, V.Yu.Ponomarev, K.Sonnabend, A.Zilges

Fine Structure of the Pygmy Dipole Resonance in ¹³⁶Xe

NUCLEAR REACTIONS ¹³⁶Xe(γ, γ'), E not given; measured Eγ, Iγ, B(E1). Comparison with quasiparticle phonon model.

doi: 10.1103/PhysRevLett.100.232501
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetG0029. Data from this article have been entered in the XUNDL database. For more information, click here.

2007SA48      Nucl.Phys. A788, 165c (2007)

D.Savran, M.Babilon, A.M.van den Berg, M.N.Harakeh, J.Hasper, H.J.Wortche, A.Zilges

Investigation of the Pygmy Dipole Resonance in (α, α'γ) coincidence experiments

NUCLEAR REACTIONS ¹⁴⁰Ce(α, α'), E=136 MeV; measured Eα, Eγ, αγ-coin, σ(θ). ¹⁴⁰Ce deduced electric dipole strength distribution, pygmy resonance features.

doi: 10.1016/j.nuclphysa.2007.01.078
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2006SA37      Phys.Rev.Lett. 97, 172502 (2006)

D.Savran, M.Babilon, A.M.van den Berg, M.N.Harakeh, J.Hasper, A.Matic, H.J.Wortche, A.Zilges

Nature of the Pygmy Dipole Resonance in ¹⁴⁰Ce Studied in (α, α'γ) Experiments

NUCLEAR REACTIONS ¹⁴⁰Ce(α, α'), E=136 MeV; measured Eα, Eγ, αγ-coin, σ(θ). ¹⁴⁰Ce deduced electric dipole strength distribution, pygmy resonance features.

doi: 10.1103/PhysRevLett.97.172502
Citations: PlumX Metrics

2006SO10      Eur.Phys.J. A 27, Supplement 1, 149 (2006)

K.Sonnabend, M.Babilon, J.Hasper, S.Muller, M.Zarza, A.Zilges

Photodissociation of neutron deficient nuclei

doi: 10.1140/epja/i2006-08-022-9
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2006VO11      Nucl.Phys. A779, 1 (2006)

S.Volz, N.Tsoneva, M.Babilon, M.Elvers, J.Hasper, R.-D.Herzberg, H.Lenske, K.Lindenberg, D.Savran, A.Zilges

The photoresponse of stable N = 82 nuclei below 10 MeV

NUCLEAR REACTIONS ¹³⁸Ba(γ, γ'), E=9.2 MeV bremsstrahlung; ¹⁴⁰Ce, ¹⁴²Nd, ¹⁴⁴Sm(γ, γ'), E=7.6, 9.9 MeV bremsstrahlung; measured Eγ, Iγ. ¹³⁸Ba, ¹⁴⁰Ce, ¹⁴²Nd, ¹⁴⁴Sm deduced dipole transition energies, B(E1). Comparison with quasiparticle-phonon model predictions.

doi: 10.1016/j.nuclphysa.2006.08.012
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetM0821. Data from this article have been entered in the XUNDL database. For more information, click here.