The KARMEN anomaly, light neutralinos and type-II supernovae
نویسنده
چکیده
The KARMEN experiment observes a time anomaly in events induced by pion decay at rest. This anomaly can be ascribed to the production of a new weakly interacting particle X with mass mX ≈ 34MeV. We show that a recently proposed identification of the X particle with the lightest neutralino χ in the frame work of the MSSM with broken R parity is in contradiction to optical observations of type-II supernovae.
منابع مشابه
The KARMEN anomaly, light neutralinos and supernova SN1987A
The KARMEN experiment observes a time anomaly in events induced by pion decay at rest. This anomaly can be ascribed to the production of a new weakly interacting particle X with mass mX ≈ 34 MeV. We show that a recently proposed identification of the X particle with the lightest neutralino χ in the frame work of the MSSM with broken R parity is in contradiction to optical observations of SN 198...
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