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Study of quark-gluon structure of hadrons with a large polarized target

Study of quark-gluon structure of hadrons with a large polarized target
大极化靶强子夸克胶子结构研究
批准号:
18002006
负责人:
IWATA Takahiro
金额:
$113.48万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Specially Promoted Research
财政年份:
2006
资助国家:
日本
项目状态:
已结题
起止时间:
2006 至 2009

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中文摘要
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英文摘要
We have measured the gluon polarization in two reaction channels in order to investigate the origin of the nucleon spin. We obtained the polarization with the best precision ever in both channels. Contribution of the gluon spin to the nucleon spin is found to be not as large as the expectations by theories. We have obtained Collins and Sivers asymmetries which are related to the transverse spin state of quarks and their orbital motion. The results provided with rich information on details of quarks inside the nucleon.
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会议论文
Flavour Separation of Helicity Distributions from Deep Inelastic Muon-Deuteron Scattering
深度非弹性μ子-氘核散射的螺旋度分布的风味分离
DOI: --
发表时间: 2009
期刊: Phys. Lett. B 680
影响因子: --
作者: [M. Alekseev, N. Doshita, T. Hasegawa, N. Horikawa, S. Ishimoto, T. Iwata, K. Kondo, T. Matsuda, T. Michigami, COMPASS Collaboration members]
通讯作者: COMPASS Collaboration members
DOI: --
发表时间: 2008
期刊: Phys. Lett. 3660
影响因子: --
作者: [COMPASS Collaboration(M.Alekseev et.al.)]
通讯作者: COMPASS Collaboration(M.Alekseev et.al.)
Results for Transverse Spin Physics at COMPASS
COMPASS 横向自旋物理结果
DOI: --
发表时间: 2007
期刊:
影响因子: --
作者: [T. Wakatsuki, S. Hara, S. Ito and T. Fukui, Takahiro Iwata]
通讯作者: Takahiro Iwata
横偏極を用いたCOMPASSの最近の結果
COMPASS 使用横向偏振的最新结果
DOI: --
发表时间: 2008
期刊:
影响因子: --
作者: [Yong Mei Chen, et al., 松田達郎]
通讯作者: 松田達郎
38
    DNP for solid Xenon toward hyperpolarized MRI
    • 批准号:
      26670297
    • 项目类别:
      Grant-in-Aid for Challenging Exploratory Research
    • 资助金额:
      $2.41万
    • 财政年份:
      2014
    • 负责人:
      IWATA Takahiro
    • 依托单位:
    Development of Gate Beam Hodoscope for High Intensity Beam Detection
    • 批准号:
      05804012
    • 项目类别:
      Grant-in-Aid for General Scientific Research (C)
    • 资助金额:
      $1.22万
    • 财政年份:
      1993
    • 负责人:
      IWATA Takahiro
    • 依托单位:
    海外基金