Observation of Anomalous Internal Pair Creation in $^8$Be: A Possible Signature of a Light, Neutral Boson

Electron-positron angular correlations were measured for the isovector magnetic dipole 17.6 MeV state ($J^\pi=1^+$, $T=1$) $\rightarrow$ ground state ($J^\pi=0^+$, $T=0$) and the isoscalar magnetic dipole 18.15 MeV ($J^\pi=1^+$, $T=0$) state $\rightarrow$ ground state transitions in $^{8}$Be. Signif...

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Detalles Bibliográficos
Autores principales: Krasznahorkay, A. J., Csatlós, M., Csige, L., Gácsi, Z., Gulyás, J., Hunyadi, M., Ketel, T.J., Krasznahorkay, A., Kuti, I., Nyakó, B.M., Stuhl, L., Timár, J., Tornyi, T.G., Vajta, Zs.
Lenguaje:eng
Publicado: 2015
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.116.042501
http://cds.cern.ch/record/2007411

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