Possible observation of light neutral bosons in nuclear emulsions.

作者: F. W. N. de Boer , R. van Dantzig

DOI: 10.1103/PHYSREVLETT.61.1274

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摘要: Electron-positron pairs apparently resulting from the decay of light intermediate neutral particles emitted in relativistic heavy-ion collisions have been reported by El-Nadi and Badawy. The events, observed nuclear emulsions, are similar to data 35 years ago that caused ..pi../sup 0/ lifetime estimate be wrong almost 2 orders magnitude for about a decade. consistent with production subsequent short-lived bosons masses around 1.1, 2.1, 9 MeV lifetimes order 10/sup -16/--10/sup -15/ s.

参考文章(12)
Joachim Reinhardt, Andreas Schäfer, Berndt Müller, Walter Greiner, Phenomenological consequences of a hypothetical light neutral particle in heavy ion collisions Physical Review C. ,vol. 33, pp. 194- 207 ,(1986) , 10.1103/PHYSREVC.33.194
William A. Bardeen, R.D. Peccei, T. Yanagida, Constraints on variant axion models Nuclear Physics B. ,vol. 279, pp. 401- 428 ,(1987) , 10.1016/0550-3213(87)90003-4
F.W.N. De Boer, K. Abrahams, A. Balanda, H. Bokemeyer, R. Van Dantzig, J.F.W. Jansen, B. Kotlinski, M.J.A. De Voigt, J. Van Klinken, Search for short-lived axions in a nuclear isoscalar transition Physics Letters B. ,vol. 180, pp. 4- 8 ,(1986) , 10.1016/0370-2693(86)90123-1
R. Eichler, L. Felawka, N. Kraus, C. Niebuhr, H.K. Walter, S. Egli, R. Engfer, Ch. Grab, E.A. Hermes, H.S. Pruys, A. van der Schaaf, D. Vermeulen, W. Bertl, N. Lordong, U. Bellgardt, G. Otter, T. Kozlowski, J. Martino, Limits for short-lived neutral particles emitted in μ+ or π+ decay Physics Letters B. ,vol. 175, pp. 101- 104 ,(1986) , 10.1016/0370-2693(86)90339-4
K. Danzmann, W. E. Meyerhof, E. C. Montenegro, Xiang-Yuan Xu, E. Dillard, H. P. Hülskotter, F. S. Stephens, R. M. Diamond, M. A. Deleplanque, A. O. Macchiavelli, J. Schweppe, R. J. McDonald, B. S. Rude, J. D. Molitoris, 180°-correlated equal-energy photons from 5.9-MeV/nucleon U + Th collisions Physical Review Letters. ,vol. 59, pp. 1885- 1888 ,(1987) , 10.1103/PHYSREVLETT.59.1885
M. El-Nadi, O. E. Badawy, Production of a new light neutral boson in high-energy collisions. Physical Review Letters. ,vol. 61, pp. 1271- 1273 ,(1988) , 10.1103/PHYSREVLETT.61.1271
Observations on the lifetime of the neutral π-meson Proceedings of The Royal Society A: Mathematical, Physical and Engineering Sciences. ,vol. 220, pp. 183- 202 ,(1953) , 10.1098/RSPA.1953.0181
D.H. Perkins, Ionization at the origin of electron Pairs, and the lifetime of the neutral pion Philosophical Magazine Series 1. ,vol. 46, pp. 1146- 1148 ,(1955) , 10.1080/14786441008521131
C. P. Sargent, R. Cornelius, M. Rinehart, L. M. Lederman, K. Rogers, Diffusion Cloud-Chamber Study of Very Slow Mesons. I. Internal Pair Formation Physical Review. ,vol. 98, pp. 1349- 1354 ,(1955) , 10.1103/PHYSREV.98.1349
N. P. Samios, DYNAMICS OF INTERNALLY CONVERTED ELECTRON-POSITRON PAIRS Physical Review. ,vol. 121, pp. 275- 281 ,(1961) , 10.1103/PHYSREV.121.275