Neutral pion decays probe new physics beyond the standard model |
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| Affiliation: | 1. State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Agricultural College, Guangxi University, Nanning 530000, Guangxi, China;2. NSW Department of Primary Industries, Wagga Wagga Agricultural Institute, Wagga Wagga, NSW 2650, Australia;3. Cultivation Base of Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, China;4. School of Life Sciences, Faculty of Science, University of Technology Sydney, PO Box 123, Broadway, Ultimo, NSW 2007, Australia;5. Agriculture Victoria Research, Department of Economic Development, Jobs, Transport and Resources, PB 260, Horsham, Vic 3400, Australia;6. Climate Change Research Centre and ARC Centre of Excellence for Climate Extremes, University of New South Wales, Sydney, NSW, Australia;1. Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180, USA;2. Department of Biochemistry and Cell Biology, Geisel School of Medicine at Dartmouth, Hanover, NH 03755, USA;3. Department of Molecular and Systems Biology, Geisel School of Medicine at Dartmouth, Hanover, NH 03755, USA;1. Department of Anaesthesiology, Pain Medicine & Critical Care, All India Institute of Medical Sciences, New Delhi, India;2. Department of GI Surgery & Liver Transplantation, All India Institute of Medical Sciences, New Delhi, India |
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| Abstract: | We study the decay π0 → γ + unobservable particles. The observation of such a process would give unambiguous evidence for the existence of a new light gauge boson of the type predicted by a number of current models. It is shown that the decay rate of the production of such a boson can be experimentally interesting. The contribution of the background processes (π0 → γ + scalars, π0 → γ + fermions) is proved to be negligibly small. |
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