activity
20132025
most citedObservation of Anomalous Internal Pair Creation in Be: A Possible Signature of a Light, Neutral Boson

403 citations · 958 across the 27 of their papers we have counts for

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Showing 2015Show all

6 papers · 1 filter

nucl-ex2015★ 45 cited

Study of the 238U(d,p) surrogate reaction via the simultaneous measurement of gamma-decay and fission probabilities

Q. Ducasse, B. Jurado, M. Aïche +26

We investigated the 238U(d,p) reaction as a surrogate for the n + 238U reaction. For this purpose we measured for the first time the gamma-decay and fission probabilities of 239U*…

nucl-ex2015★ 72 cited

Validity of the generalized Brink-Axel hypothesis in Np

M. Guttormsen, A. C. Larsen, A. Görgen +4

We have analyzed primary -ray spectra of the odd-odd Np nucleus extracted from Np()Np coincidence data measured at the Oslo Cyclotron Laboratory. T…

nucl-ex2015★ 34 cited

Statistical properties of Pu, and Pu(n,) cross section calculation

T. A. Laplace, F. Zeiser, M. Guttormsen +24

The level density and gamma-ray strength function (gammaSF) of 243Pu have been measured in the quasi-continuum using the Oslo method. Excited states in 243Pu were populated using t…

nucl-ex2015★ 40 cited

Experimentally constrained ()Y and ()Y reaction rates relevant to the -process nucleosynthesis

A. C. Larsen, M. Guttormsen, R. Schwengner +18

The nuclear level density and the -ray strength function have been extracted for Y, using the Oslo Method on Y()Y coincidence data. The -ray stre…

nucl-ex2015★ 403 cited

Observation of Anomalous Internal Pair Creation in Be: A Possible Signature of a Light, Neutral Boson

A. J. Krasznahorkay, M. Csatlós, L. Csige +11

Electron-positron angular correlations were measured for the isovector magnetic dipole 17.6 MeV state (, ) ground state (, ) and the isosc…

nucl-ex2015★ 44 cited

A pair spectrometer for measuring multipolarities of energetic nuclear transitions

J. Gulyás, T. J. Ketel, A. J. Krasznahorkay +7

A multi-detector array has been designed and constructed for the simultaneous measurement of energy- and angular correlations of electron-positron pairs. Experimental results are o…