Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-11-04
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages, 2 figures, contributed paper to the Int. Symposium on Exotic Nuclear Systems (ENS05), ATOMKI, Debrecen, Hungary, 20-2
Scientific paper
10.1063/1.2140642
In this paper we report on a systematic search for a neutral boson in the mass range between 5 and 15 MeV/c$^{2}$ in the decay of highly excited nuclei. Its signature is found a deviation in the angular correlation of the $e^+e^-$ pairs from conventional internal pair conversion (IPC) resulting from of its two-body decay kinematics. With an $e^{+}e^{-}$ pair-spectrometer, a number of transitions has been investigated in the ${\alpha}$--nuclei $^{8}$Be, $^{12}$C and $^{16}$O, following light ion induced reactions at low bombarding energies, first at IKF in Frankfurt and during the last years at ATOMKI in Debrecen. Startlingly, in all isoscalar transitions excess $e^{+}e^{-}$ pairs are found at large angles with branching ratios with respect to the total yield ranging from 10$^{-2}$ to 10$^{-6}$. If these deviations are all related to the two-body decay of an $X$-boson, this observation implies plural $X$-bosons. An analysis of all angular spectra with a boson search program, yields a pandemonium of more than ten candidate bosons.
No associations
LandOfFree
Anomalous internal pair conversion signaling elusive light neutral particles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Anomalous internal pair conversion signaling elusive light neutral particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anomalous internal pair conversion signaling elusive light neutral particles will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-58048