Published January 2020
| Version v1
Journal article
A novel form of nuclear bound system. 'K-pp'
- 1. RIKEN, Cluster for Pioneering Research, Wako, Saitama (Japan)
Description
We observed a nucleus consist of a K- meson and two protons, 'K-pp', at the J-PARC. The binding energy is as large as ∼50 MeV, which is about 10 times larger than the standard nuclear binding energy, and the width is ∼100 MeV. The momentum transfer analysis is indicating that the size of 'K-pp' could be as small as ∼0.5 fm. The results will provide new insights on the origin of hadron mass and the physics at the very high density matter, such as a core of neutron stars. (author)
Availability note (English)
Available from https://www.jstage.jst.go.jp/browse/butsuri/Additional details
Additional titles
- Original title (Japanese)
- K中間子と陽子2つからなる"奇妙な"原子核
Identifiers
Publishing Information
- Journal Title
- Nippon Butsuri Gakkai-Shi (Online)
- Journal Volume
- 75
- Journal Issue
- 1
- Series
- 雑誌名:日本物理学会誌
- Journal Page Range
- p. 10-15
- ISSN
- 2423-8872
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 51037497
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BINDING ENERGY; J-PARC CENTER; MAGNETIC SPECTROMETERS; MESON BEAMS; MESONS; NUCLEAR MATTER; NUCLEI; NUCLEONS; QUANTUM CHROMODYNAMICS; QUARK-GLUON INTERACTIONS; WEAK INTERACTIONS
- Descriptors DEC
- BARYONS; BEAMS; BOSONS; ELEMENTARY PARTICLES; ENERGY; FERMIONS; FIELD THEORIES; FUNDAMENTAL INTERACTIONS; HADRONS; INTERACTIONS; JAPANESE ORGANIZATIONS; MATTER; MEASURING INSTRUMENTS; NATIONAL ORGANIZATIONS; PARTICLE BEAMS; PARTICLE INTERACTIONS; QUANTUM FIELD THEORY; SPECTROMETERS
Optional Information
- Notes
- 8 refs., 5 figs.