Nuclear and nucleon transitions of the H di-baryon

Abstract

We consider 3 types of processes pertinent to the phenomenology of an H di-baryon: conversion of two $\Lambda$'s in a doubly-strange hypernucleus to an H, decay of the H to two baryons, and -- if the H is light enough -- conversion of two nucleons in a nucleus to an H. We compute the spatial wavefunction overlap using the Isgur-Karl and Bethe-Goldstone wavefunctions, and treat the weak interactions phenomenologically. The observation of $\Lambda$ decays from doubly-strange hypernuclei puts a constraint on the H wavefunction which is plausibly satisfied. In this case the H is very long-lived as we calculate. An absolutely stable H is not excluded at present. SuperK can provide valuable limits.

References in corpus (7)

• Recent Progress in Neutron Star Theory
• Glueballs and Instantons
• H-dibaryon
• New limits on nucleon decays into invisible channels with the BOREXINO Counting Test Facility
• Masses of Flavor Singlet Hybrid Baryons
• H-dibaryon matter in the Skyrme model on a hypersphere
• The H-Dibaryon and the Hard Core

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• Asymptotically conformal CFL quark matter within a nonlocal chiral quark model
• On the cosmology and terrestrial signals of sexaquark dark matter
• Hypernuclear constraints on the existence and lifetime of a deeply bound $H$ dibaryon
• Quark deconfinement in compact stars through sexaquark condensation
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• Alternative Approaches to Dark Matter Puzzle