Formation of $\eta/\omega$-mesic nuclei using the recoilless (d,$^3$He) reaction

R.S. Hayano; S. Hirenzaki; A. Gillitzer

doi:doi:10.1007/s100500050322

EPJ

a
b
c
d
e
ap
st
h
plus
ds
pv
ti
qt
am
n

2024 Impact factor 2.8

Hadrons and Nuclei

Eur. Phys. J. A 6, 99-105

Formation of $\eta/\omega$ -mesic nuclei using the recoilless (d,³He) reaction

R.S. Hayano¹ - S. Hirenzaki² - A. Gillitzer³

¹ Department of Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
² Department of Physics, Nara Women's University, Nara 630-8506, Japan
³ Physik Department E12, Technische Universität München, D-85748 Garching, Germany

Received: 15 February 1999 / Revised version: 21 May 1999 Communicated by Th. Walcher

Abstract
We discuss the possibility to use the recoilless (d,³He) reaction to produce bound states of $\eta$ and $\omega$ mesons in light nuclei. We calculate meson bound states in the nucleus using an optical potential and their formation cross sections with the Green function method, and show that it should be feasible to experimentally observe mesic nuclei in the excitation energy spectrum and to deduce the meson mass shift in nuclei. This method discussed here is complementary to the dilepton invariant-mass spectroscopy, commonly used to study in-medium vector meson masses.

PACS
25.10.+s Nuclear reactions involving few-nucleon systems - 14.40.Aq $\pi$ , K, and $\eta$ mesons - 36.10.Gv Mesonic atoms and molecules, hyperonic atoms and molecules