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Pramana

, Volume 33, Issue 6, pp 639–649 | Cite as

Interpretation of the recent Kolar events

  • A S Joshipura
  • G Rajasekaran
  • V Gupta
  • K V L Sarma
Particle Physics

Abstract

We give plausible interpretations of the unusual events seen in the proton decay detector at Kolar Gold Fields indicating the existence of a massive (≳2GeV) long lived (10−8−10−9s) particle. We show that it is possible to accommodate the particle in the standard model as a fourth generation neutrino, or inE 6 grand unified theory as a neutral fermion occurring in27 representation or in supersymmetric theory as a scalar neutrino. However, there is a difficulty in explaining the large production rate for the particle.

Keywords

Kolar particle heavy neutrino fourth generation standard model E6 grand unified model heavy leptons supersymmetric model scalar neutrino 

PACS Nos

13.35 14.60 14.80 96.40 

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Copyright information

© Indian Academy of Sciences 1989

Authors and Affiliations

  • A S Joshipura
    • 1
    • 3
  • G Rajasekaran
    • 1
  • V Gupta
    • 2
  • K V L Sarma
    • 2
  1. 1.The Institute of Mathematical SciencesMadrasIndia
  2. 2.Tata Institute of Fundamental ResearchBombayIndia
  3. 3.Physical Research LaboratoryAhmedabadIndia

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