Nuclear and nucleon transitions of the H di-baryon
High Energy Physics - Phenomenology
2009-11-10 v1
Abstract
We consider 3 types of processes pertinent to the phenomenology of an H di-baryon: conversion of two '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 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.
Cite
@article{arxiv.hep-ph/0308137,
title = {Nuclear and nucleon transitions of the H di-baryon},
author = {Glennys R. Farrar and Gabrijela Zaharijas},
journal= {arXiv preprint arXiv:hep-ph/0308137},
year = {2009}
}