Supersymmetric particles and the ΔI = 1 2 rule

Paul Langacker; B. Sathiapalan

doi:10.1016/0370-2693(84)91286-3

Supersymmetric particles and the ΔI = 1 2 rule

Paul Langacker, B. Sathiapalan

Physics

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19 Scopus citations

Abstract

We consider the contributions of new particles in supersymmetric theories to the nonleptonic decays of strange particles. We find that for a wide class of models the dominant new contribution is from purely ΔI = 1 2 penguinlike diagrams involving gluinos and scalar quarks. Detailed calculations suggest that these super-penguins are smaller in magnitude than the ordinary penguins unless the gluinos and scalar quarks are light (e.g. 1 GeV and 30 GeV, respectively), but there are significant uncertainties associated with higher order QCD effects.

Original language	English (US)
Pages (from-to)	395-400
Number of pages	6
Journal	Physics Letters B
Volume	144
Issue number	5-6
DOIs	https://doi.org/10.1016/0370-2693(84)91286-3
State	Published - Sep 6 1984

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/0370-2693(84)91286-3

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title = "Supersymmetric particles and the ΔI = 1 2 rule",

abstract = "We consider the contributions of new particles in supersymmetric theories to the nonleptonic decays of strange particles. We find that for a wide class of models the dominant new contribution is from purely ΔI = 1 2 penguinlike diagrams involving gluinos and scalar quarks. Detailed calculations suggest that these super-penguins are smaller in magnitude than the ordinary penguins unless the gluinos and scalar quarks are light (e.g. 1 GeV and 30 GeV, respectively), but there are significant uncertainties associated with higher order QCD effects.",

author = "Paul Langacker and B. Sathiapalan",

note = "Funding Information: One of us (P.L.) is very grateful to Steve Adler for the hospitality of the Institute for Advanced Study. This work was supported by the Institute and by the Department of Energy Contract no. EY-76-C-02-3071.",

year = "1984",

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doi = "10.1016/0370-2693(84)91286-3",

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T1 - Supersymmetric particles and the ΔI = 1 2 rule

AU - Langacker, Paul

AU - Sathiapalan, B.

N1 - Funding Information: One of us (P.L.) is very grateful to Steve Adler for the hospitality of the Institute for Advanced Study. This work was supported by the Institute and by the Department of Energy Contract no. EY-76-C-02-3071.

PY - 1984/9/6

Y1 - 1984/9/6

N2 - We consider the contributions of new particles in supersymmetric theories to the nonleptonic decays of strange particles. We find that for a wide class of models the dominant new contribution is from purely ΔI = 1 2 penguinlike diagrams involving gluinos and scalar quarks. Detailed calculations suggest that these super-penguins are smaller in magnitude than the ordinary penguins unless the gluinos and scalar quarks are light (e.g. 1 GeV and 30 GeV, respectively), but there are significant uncertainties associated with higher order QCD effects.

AB - We consider the contributions of new particles in supersymmetric theories to the nonleptonic decays of strange particles. We find that for a wide class of models the dominant new contribution is from purely ΔI = 1 2 penguinlike diagrams involving gluinos and scalar quarks. Detailed calculations suggest that these super-penguins are smaller in magnitude than the ordinary penguins unless the gluinos and scalar quarks are light (e.g. 1 GeV and 30 GeV, respectively), but there are significant uncertainties associated with higher order QCD effects.

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VL - 144

SP - 395

EP - 400

JO - Physics Letters B

JF - Physics Letters B

IS - 5-6

ER -

Supersymmetric particles and the ΔI = 1 2 rule

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