Constituent gluons and a new mechanism for radiative weak decays of hyperons

Mary K. Gaillard; Xue Qian Li; Serge Rudaz

doi:10.1016/0370-2693(85)91384-X

Constituent gluons and a new mechanism for radiative weak decays of hyperons

Mary K. Gaillard, Xue Qian Li, Serge Rudaz

Physics and Astronomy (Twin Cities)

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

38 Scopus citations

Abstract

An effective quark-gluon-photon operator is considered as the mechanism for radiative weak decays of hyperons. The coefficient function is unsuppressed by GIM cancellations, suggesting a significant decay rate, and a substantial amount of parity violation (large decay asymmetry) is expected. Attempted model calculations confirm this last feature but fail to provide an adequate absolute decay rate.

Original language	English (US)
Pages (from-to)	158-163
Number of pages	6
Journal	Physics Letters B
Volume	158
Issue number	2
DOIs	https://doi.org/10.1016/0370-2693(85)91384-X
State	Published - Aug 8 1985

Bibliographical note

Funding Information:
We have enjoyed helpful conversations with R.L. Jaffe. This work was supported in part by the National Science Foundation, under research grant No. PHY-84-06608 (MKG), by the US Department of Energy under Contracts DE-AC03.76SF00098 (MKG) and DE-AC02-83ER40105 (XQL and SR), as well as by a Presidential Young Investigator Award (SR).

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abstract = "An effective quark-gluon-photon operator is considered as the mechanism for radiative weak decays of hyperons. The coefficient function is unsuppressed by GIM cancellations, suggesting a significant decay rate, and a substantial amount of parity violation (large decay asymmetry) is expected. Attempted model calculations confirm this last feature but fail to provide an adequate absolute decay rate.",

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AU - Li, Xue Qian

AU - Rudaz, Serge

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AB - An effective quark-gluon-photon operator is considered as the mechanism for radiative weak decays of hyperons. The coefficient function is unsuppressed by GIM cancellations, suggesting a significant decay rate, and a substantial amount of parity violation (large decay asymmetry) is expected. Attempted model calculations confirm this last feature but fail to provide an adequate absolute decay rate.

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Constituent gluons and a new mechanism for radiative weak decays of hyperons

Abstract

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