We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
NON-STRANGE DIBARYONS STUDIED IN COHERENT DOUBLE NEUTRAL-MESON PHOTOPRODUCTION ON THE DEUTERON.
- Authors
ISHIKAWA, T.; FUJIMURA, H.; FUKASAWA, H.; HASHIMOTO, R.; HE, Q.; HONDA, Y.; IWATA, T.; KAIDA, S.; KANDA, H.; KASAGI, J.; KAWANO, A.; KUWASAKI, S.; MAEDA, K.; MASUMOTO, S.; MIYABE, M.; MIYAHARA, F.; MOCHIZUKI, K.; MURAMATSU, N.; NAKAMURA, A.; NAWA, K.
- Abstract
We have investigated the γd → π0π0d reaction to study dibaryon resonances. The total cross section as a function of the d center-of-mass energy shows resonance-like behavior peaked at around 2.47 and 2.63 GeV. The measured angular distribution of deuteron emission is rather flat, which cannot be reproduced by kinematics for quasi-free π0π0 production with deuteron coalescence. A clear peak is observed at 2.14 GeV in the π0d invariant-mass distributions. The present work shows a sequential process γd → RIS → π0RIV → π0π0d is dominant with two 2.47- and 2.63-GeV isoscalar dibaryons (RIS) and a 2.14-GeV isovector dibaryon (RIV).
- Subjects
DEUTERONS; KINEMATICS; RESONANCE
- Publication
Acta Physica Polonica B, 2020, Vol 51, Issue 1, p329
- ISSN
0587-4254
- Publication type
Article
- DOI
10.5506/APhysPolB.51.329