Downloads: 191

Files in This Item:
File Description SizeFormat 
PhysRevLett.120.212001.pdf507.57 kBAdobe PDFView/Open
Title: Most Strange Dibaryon from Lattice QCD
Authors: Gongyo, Shinya
Sasaki, Kenji
Aoki, Sinya
Doi, Takumi
Hatsuda, Tetsuo
Ikeda, Yoichi
Inoue, Takashi
Iritani, Takumi
Ishii, Noriyoshi
Miyamoto, Takaya
Nemura, Hidekatsu
Author's alias: 権業, 慎也
佐々木, 健志
青木, 愼也
土井, 琢身
初田, 哲男
池田, 陽一
井上, 貴史
入谷, 匠
石井, 理修
宮本, 貴也
根村, 英克
Keywords: Particles & Fields
Nuclear Physics
Issue Date: 25-May-2018
Publisher: American Physical Society (APS)
Journal title: Physical Review Letters
Volume: 120
Issue: 21
Thesis number: 212001
Abstract: The ΩΩ system in the 1S0 channel (the most strange dibaryon) is studied on the basis of the (2+1)-flavor lattice QCD simulations with a large volume (8.1 fm)3 and nearly physical pion mass mπ≃146 MeV at a lattice spacing of a≃0.0846 fm. We show that lattice QCD data analysis by the HAL QCD method leads to the scattering length a0=4.6(6)(+1.2−0.5) fm, the effective range reff=1.27(3)(+0.06−0.03) fm, and the binding energy BΩΩ=1.6(6)(+0.7−0.6) MeV. These results indicate that the ΩΩ system has an overall attraction and is located near the unitary regime. Such a system can be best searched experimentally by the pair-momentum correlation in relativistic heavy-ion collisions.
Description: 新粒子「ダイオメガ」 --スパコン「京」と数理で予言するクォーク6個の新世界--. 京都大学プレスリリース. 2018-05-29.
Rights: Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
URI: http://hdl.handle.net/2433/231256
DOI(Published Version): 10.1103/PhysRevLett.120.212001
PubMed ID: 29883161
Related Link: https://www.kyoto-u.ac.jp/ja/research-news/2018-05-29
Appears in Collections:Journal Articles

Show full item record

Export to RefWorks


Export Format: 


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.