2015 Fiscal Year Final Research Report
High-resolution Spectroscopy of Many-Body systems with Multi-Strangeness
| Project/Area Number |
23000003
|
|---|
| Research Category |
Grant-in-Aid for Specially Promoted Research
|
| Allocation Type | Single-year Grants |
|---|
| Review Section |
Science and Engineering
Mathematics and Physics
|
|---|
| Research Institution | Kyoto University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
TAKAHASHI Toshiyuki 高エネルギー加速器研究機構, 素粒子原子核研究所, 准教授 (50281960)
FUJIOKA Hiroyuki 京都大学, 理学研究科, 助教 (30513395)
TAKAHASHI Hitoshi 高エネルギー加速器研究機構, 素粒子原子核研究所, 准教授 (60353372)
HIROSE Erina 高エネルギー加速器研究機構, 素粒子原子核研究所, 技師 (90391763)
|
|---|
| Research Collaborator |
KATO Seigo 山形大学, 理学部, 名誉教授
|
|---|
| Project Period (FY) |
2011 – 2015
|
| Keywords | ストレンジネス / ハイパー核 / グザイ・ハイパー核 / J-PARC |
|---|
| Outline of Final Research Achievements |
A new type of hypernucleus with strangeness -2, ^12_Ξ Be, which is a bound state of a Ξ in a nucleus, was successfully observed in the (K^-, K^+) reaction. The experiment was performed at a kaon beam line in J-PARC by using an existing magnetic spectrometer called “SKS”. The obtained binding energy of the Ξ hypernucleus is larger than the values previously reported. It suggests that the Ξ-N interaction is strongly attractive. In addition, a magnetic spectrometer system called “S-2S”, which has about three times better energy resolution than the SKS, has been newly constructed.
|
| Free Research Field |
素粒子・原子核・宇宙線・宇宙物理
|
