English

Kaonic deuterium and low-energy antikaon-nucleon interaction

Nuclear Theory 2018-08-01 v1

Abstract

A new evaluation of the 1s1s level shift and width of kaonic deuterium is presented based on an accurate KˉNN\bar{K}NN three-body calculation, using as input a realistic antikaon-nucleon interaction constrained by the SIDDHARTA kaonic hydrogen data. The three-body Schr\"odinger equation is solved with a superposition of a large number of correlated Gaussian basis functions extending over distance scales up to several hundred fm. The resulting energy shift and width of the kaonic deuterium 1s1s level are E0.67E\simeq 0.67 keV and Γ1.02\Gamma\simeq 1.02 keV, with estimated uncertainties at the 10% level.

Keywords

Cite

@article{arxiv.1712.09492,
  title  = {Kaonic deuterium and low-energy antikaon-nucleon interaction},
  author = {Wataru Horiuchi and Tetsuo Hyodo and Wolfram Weise},
  journal= {arXiv preprint arXiv:1712.09492},
  year   = {2018}
}

Comments

9 pages, 2 figures, based on the talk presented at the EXA2017 conference