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Charge-symmetry breaking of parton distribution functions and flavor-asymmetry of sea-quark distributions

Charge-symmetry breaking of parton distribution functions and flavor-asymmetry of sea-quark distributions
部分子分布函数的电荷对称性破缺和海夸克分布的风味不对称性
批准号:
21540268
负责人:
WAKAMATSU Masashi
金额:
$2.16万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2009
资助国家:
日本
项目状态:
已结题
起止时间:
2009 至 2011

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中文摘要
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英文摘要
We investigated the effects of charge-symmetry breaking and flavor-symmetry breaking on the quark and antiquark distribution functions in a unified manner within the framework of the chiral quark soliton model. Different from the past analysis based on a naive model, we find that the effect of strange and anti-strange quark asymmetry is more than a factor of 5 larger than the charge-symmetry breaking effects.
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The role of orbital angular momentum in the proton spin
轨道角动量在质子自旋中的作用
DOI: --
发表时间: 2010
期刊: European Physics Journal A
影响因子: --
作者: [稲冨晶子, 岸本功, 高橋智彦, 若松正志]
通讯作者: 若松正志
Is a complete decomposition of nucleon spin possible
核子自旋的完全分解是否可能
DOI: --
发表时间: 2012
期刊:
影响因子: --
作者: [R. Kimura, G. Nakamura, K. Yamamoto, M. Wakamatsu]
通讯作者: M. Wakamatsu
Transverse momentum distributions of quarks in the nucleon from the chiral quark soliton model
来自手性夸克孤子模型的核子中夸克的横向动量分布
DOI: --
发表时间: 2009
期刊: Phys. Rev
影响因子: --
作者: [R. Kimura, T. Kobayashi, K. Yamamoto, M. Wakamatsu]
通讯作者: M. Wakamatsu
Orbital angular momenta of quarks and gluons-Model-dependent and model-independent extraction-
夸克和胶子的轨道角动量-模型相关和模型无关的提取-
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者: [柳哲文, 中尾憲一, M. Wakamatsu]
通讯作者: M. Wakamatsu
14
    Generalized parton distributions and tit nucleon spin structute
    • 批准号:
      16540253
    • 项目类别:
      Grant-in-Aid for Scientific Research (C)
    • 资助金额:
      $2.25万
    • 财政年份:
      2004
    • 负责人:
      WAKAMATSU Masashi
    • 依托单位:
    The Study on the Documents of the Suzukas, main Shinto priests in Yoshida Shrine, in the Edo Period.
    • 批准号:
      15520415
    • 项目类别:
      Grant-in-Aid for Scientific Research (C)
    • 资助金额:
      $2.11万
    • 财政年份:
      2003
    • 负责人:
      WAKAMATSU Masashi
    • 依托单位:
    Study of Nucleon Spin Structure Functions based on an Effective Model of QCD
    • 批准号:
      12640267
    • 项目类别:
      Grant-in-Aid for Scientific Research (C)
    • 资助金额:
      $1.41万
    • 财政年份:
      2000
    • 负责人:
      WAKAMATSU Masashi
    • 依托单位:
    A Study of Nucleon Structure based on the Chiral Quark Soliton Model
    • 批准号:
      03640271
    • 项目类别:
      Grant-in-Aid for General Scientific Research (C)
    • 资助金额:
      $0.13万
    • 财政年份:
      1991
    • 负责人:
      WAKAMATSU Masashi
    • 依托单位:
    海外基金