Majorana neutrinos and photinos from kaon decay

We discuss the suggestion by Deshpande and Eilam of putting bounds on the ..nu../sub tau/ mass from the decay K/sup +/..--> pi../sup +/..nu..nu-bar. We show that the Dirac or Majorana nature of the ..nu../sub tau/ can make a significant difference in the pion energy spectrum. We also discuss the...

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Veröffentlicht in:	Phys. Rev. D; (United States) 1985-10, Vol.32 (7), p.1849-1852
Hauptverfasser:	Nieves, JF, Pal, PB
Format:	Artikel
Sprache:	eng
Schlagworte:	645203 - High Energy Physics- Particle Interactions & Properties-Theoretical- Weak Interactions & Properties BOSONS DECAY ELEMENTARY PARTICLES FERMIONS FUNCTIONS HADRONS HEAVY LEPTONS KAONS KAONS PLUS LAGRANGIAN FUNCTION LEPTONS LIMITING VALUES MASS MASSLESS PARTICLES MESONS NEUTRINOS PARTICLE DECAY PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PIONS PIONS PLUS POSTULATED PARTICLES PSEUDOSCALAR MESONS REST MASS SEMILEPTONIC DECAY STRANGE PARTICLES SUPERSYMMETRY SYMMETRY TAU NEUTRINOS WEAK PARTICLE DECAY
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Zusammenfassung:	We discuss the suggestion by Deshpande and Eilam of putting bounds on the ..nu../sub tau/ mass from the decay K/sup +/..--> pi../sup +/..nu..nu-bar. We show that the Dirac or Majorana nature of the ..nu../sub tau/ can make a significant difference in the pion energy spectrum. We also discuss the relative importance of the K/sup +/..--> pi../sup +/lambda/sub ..gamma../lambda/sub ..gamma../ mode, lambda/sub ..gamma../ being the photino.
ISSN:	0556-2821
DOI:	10.1103/PhysRevD.32.1849