Probing Majorana Neutrinos and their CP Violation in Decays of Charged Scalar Mesons π, K, D, Ds, B, Bc

Gorazd Cvetič, Claudio O. Dib, Choong Sun Kim, Jilberto Zamora-Saá

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Some of the outstanding questions of particle physics today concern the neutrino sector, in particular whether there are more neutrinos than those already known and whether they are Dirac or Majorana particles. There are different ways to explore these issues. In this article we describe neutrino-mediated decays of charged pseudoscalar mesons such as π±, K± and B±, in scenarios where extra neutrinos are heavy and can be on their mass shell. We discuss semileptonic and leptonic decays of such kinds. We investigate possible ways of using these decays in order to distinguish between the Dirac and Majorana character of neutrinos. Further, we argue that there are significant possibilities of detecting CP violation in such decays when there are at least two almost degenerate Majorana neutrinos involved. This latter type of scenario fits well into the known neutrino minimal standard model (νMSM) which could simultaneously explain the Dark Matter and Baryon Asymmetry of the Universe.

Original languageEnglish
Pages (from-to)726-773
Number of pages48
JournalSymmetry
Volume7
Issue number2
DOIs
Publication statusPublished - 2015 Jan 1

Fingerprint

High energy physics
CP Violation
CP violation
Neutrinos
Mesons
neutrinos
mesons
Scalar
Decay
scalars
decay
Paul Adrien Maurice Dirac
Scenarios
Particle Physics
Minimal Model
Dark Matter
Baryon
Asymmetry
Standard Model
baryons

All Science Journal Classification (ASJC) codes

  • Computer Science (miscellaneous)
  • Chemistry (miscellaneous)
  • Mathematics(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Cvetič, Gorazd ; Dib, Claudio O. ; Kim, Choong Sun ; Zamora-Saá, Jilberto. / Probing Majorana Neutrinos and their CP Violation in Decays of Charged Scalar Mesons π, K, D, Ds, B, Bc. In: Symmetry. 2015 ; Vol. 7, No. 2. pp. 726-773.
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Probing Majorana Neutrinos and their CP Violation in Decays of Charged Scalar Mesons π, K, D, Ds, B, Bc. / Cvetič, Gorazd; Dib, Claudio O.; Kim, Choong Sun; Zamora-Saá, Jilberto.

In: Symmetry, Vol. 7, No. 2, 01.01.2015, p. 726-773.

Research output: Contribution to journalArticle

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