Flavour-changing neutral current decays of heavy baryons. The case Λb → Λγ

Thomas Mannel; Stefan Recksiegel

doi:10.1088/0954-3899/24/5/006

Flavour-changing neutral current decays of heavy baryons. The case Λ_b → Λγ

Thomas Mannel, Stefan Recksiegel

University of Karlsruhe

Research output: Contribution to journal › Article › peer-review

114 Scopus citations

Abstract

We investigate the rare decay Λ_b → Λγ which receives both short-and long-distance contributions. We estimate the long-distance contributions and find them very small. The short-distance piece is sensitive to new physics and we discuss the sensitivity of Λ_b → Λγ to such effects.

Original language	English
Pages (from-to)	979-990
Number of pages	12
Journal	Journal of Physics G: Nuclear and Particle Physics
Volume	24
Issue number	5
DOIs	https://doi.org/10.1088/0954-3899/24/5/006
State	Published - May 1998
Externally published	Yes

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title = "Flavour-changing neutral current decays of heavy baryons. The case Λb → Λγ",

abstract = "We investigate the rare decay Λb → Λγ which receives both short-and long-distance contributions. We estimate the long-distance contributions and find them very small. The short-distance piece is sensitive to new physics and we discuss the sensitivity of Λb → Λγ to such effects.",

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AU - Recksiegel, Stefan

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AB - We investigate the rare decay Λb → Λγ which receives both short-and long-distance contributions. We estimate the long-distance contributions and find them very small. The short-distance piece is sensitive to new physics and we discuss the sensitivity of Λb → Λγ to such effects.

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JO - Journal of Physics G: Nuclear and Particle Physics

JF - Journal of Physics G: Nuclear and Particle Physics

IS - 5

ER -

Flavour-changing neutral current decays of heavy baryons. The case Λ_b → Λγ

Abstract

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