Mg two - proton decay lifetime
نویسندگان
چکیده
P. Voss,1,2,3,* T. Baumann,2 D. Bazin,2 A. Dewald,4 H. Iwasaki,1,2 D. Miller,1,2,† A. Ratkiewicz,1,2,‡ A. Spyrou,1,2 K. Starosta,3 M. Thoennessen,1,2 C. Vaman,2 and J. A. Tostevin5 1Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA 2National Superconducting Cyclotron Laboratory, East Lansing, Michigan 48824, USA 3Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada 4Institut für Kernphysik, Universität zu Köln, 50937 Köln, Germany 5Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom (Received 5 May 2014; published 8 July 2014)
منابع مشابه
Two-Proton Decay Experiments at MSU
First evidence for direct two-proton radioactivity has been observed in the decay of the first excited state of Ne. The decay is in competition with the -decay back to the ground state of Ne and from the branching ratio the lifetime for the two-proton decay is estimated to be 0.9 ps. The proton-proton angular distribution is statistically not significant to observe any correlations. The first e...
متن کاملOctober 2002 Proton Decay 1
We discuss the status of supersymmetric grand unified theories [SUSY GUTs] with regards to the observation of proton decay. In this talk we focus on SUSY GUTs in 4 dimensions. We outline the major theoretical uncertainties present in the calculation of the proton lifetime and then present our best estimate of an absolute upper bound on the predicted proton lifetime. Towards the end, we consider...
متن کاملProton Decay
We discuss the status of supersymmetric grand unified theories [SUSY GUTs] with regards to the observation of proton decay. In this talk we focus on SUSY GUTs in 4 dimensions. We outline the major theoretical uncertainties present in the calculation of the proton lifetime and then present our best estimate of an absolute upper bound on the predicted proton lifetime. Towards the end, we consider...
متن کاملDecay of proton into Planck neutrino in the theory of gravity
It is considered gravitational interaction within the framework of the Newton theory and the quantum field theory. It is introduced the Planck neutrino νP l. Gravitational interaction of the fields ψψ includes short-range interaction ψνP l and long-range interaction νP lνP l. Gravitational radiation can be identified with the Planck neutrino. The theory predicts the decay of proton into Planck ...
متن کاملCurrent Status of Nucleon Decay Searches with Super-Kamiokande
In the Standard Model it is assumed that the proton is completely stable because there are no lighter products to which the proton could decay without violating baryon number conservation. However, the requirement for an interaction to conserve baryon number is not backed up by any symmetry in the Standard Model. If baryon number conservation is an incorrect assumption, then there are avenues f...
متن کاملSuper-Kamiokande NOTE 98-03 Con dence Limit Calculation for Setting Proton Decay Lifetime Limits
Making use of Bayes' theorem, the method used for calculating proton decay lifetime limits is detailed, with particular emphasis on the prior probability distribution for the background. The method is then applied to various example cases.
متن کامل