First observation of gamma gamma -> p(p)over-barK(+)K(-) and search for exotic baryons in pK systems
Belle Collaboration
刊名PHYSICAL REVIEW D
2016
卷号93期号:11
DOI10.1103/PhysRevD.93.112017
文章类型Article
英文摘要The process gamma gamma -> p (p) over barK(+)K(-) and its intermediate processes are measured for the first time using a 980 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The production of p (p) over barK(+)K(-) and a Lambda(1520)(0) ((Lambda) over bar (1520)(0)) signal in the pK(-) ((p) over barK(+)) invariant mass spectrum are clearly observed. However, no evidence for an exotic baryon near 1540 MeV/c(2), denoted as Theta(1540)(0) ((Theta) over bar (1540)(0)) or Theta(1540)(++) (Theta(1540)(--)), is seen in the pK(-) ((p) over barK(+)) or pK(+) ((p) over barK(-)) invariant mass spectra. Cross sections for gamma gamma -> p (p) over barK(+)K(-), Lambda(1520)(0)(p) over barK(+) + c.c. and the products sigma(gamma gamma -> Theta(1540)(0)(p) over barK(+) + c.c.)B(Theta(1540)(0) -> pK(-)) and sigma(gamma gamma -> Theta(1540)(++)(p) over barK(-) + c.c.)B(Theta(1540)(++) -> pK(+)) are measured. We also determine upper limits on the products of the chi(c0) and chi(c2) two-photon decay widths and their branching fractions to p (p) over barK(+)K(-) at the 90% credibility level.
关键词[WOS]BELLE ; PENTAQUARKS ; COLLISIONS ; MODEL
语种英语
WOS记录号WOS:000378820600002
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260957
专题中国科学院高能物理研究所_实验物理中心_期刊论文
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Belle Collaboration. First observation of gamma gamma -> p(p)over-barK(+)K(-) and search for exotic baryons in pK systems[J]. PHYSICAL REVIEW D,2016,93(11).
APA Belle Collaboration.(2016).First observation of gamma gamma -> p(p)over-barK(+)K(-) and search for exotic baryons in pK systems.PHYSICAL REVIEW D,93(11).
MLA Belle Collaboration."First observation of gamma gamma -> p(p)over-barK(+)K(-) and search for exotic baryons in pK systems".PHYSICAL REVIEW D 93.11(2016).
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
20160475.pdf(849KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Belle Collaboration]的文章
百度学术
百度学术中相似的文章
[Belle Collaboration]的文章
必应学术
必应学术中相似的文章
[Belle Collaboration]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 20160475.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。