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Study on evolution of scalar fields in the early universe and its observational consequences

Study on evolution of scalar fields in the early universe and its observational consequences
早期宇宙标量场演化及其观测结果研究
批准号:
22540267
负责人:
KAWASAKI Masahiro
金额:
$2.75万
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:
2010
资助国家:
日本
项目状态:
已结题
起止时间:
2010 至 2012

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中文摘要
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英文摘要
We studied localized scalar field configurations such as topological defects (domain walls and strings) produced in the vacuum phase transitions and Q-balls predicted in supersymmetric theories. We investigated the cosmological evolution of those scalar fields by numerical simulations and estimated dark matter and baryon number densities which they produce. Thereby, we obtained constraints on particle physics models by using observational data.
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DOI: 10.1103/physrevd.87.035010
发表时间: 2012-11
期刊: Physical Review D
影响因子: 5
作者: [M. Kawasaki;N. Kitajima;K. Nakayama]
通讯作者: M. Kawasaki;N. Kitajima;K. Nakayama
DOI: 10.1088/1475-7516/2012/02/022
发表时间: 2011-07
期刊: Journal of Cosmology and Astroparticle Physics
影响因子: 6.4
作者: [M. Kawasaki;Koichi Miyamoto;K. Nakayama;Toyokazu Sekiguchi]
通讯作者: M. Kawasaki;Koichi Miyamoto;K. Nakayama;Toyokazu Sekiguchi
Q ball Decay Rates into Gravitinos and Quarks
Q 球衰变成引力子和夸克的速率
DOI: 10.1103/physrevd.87.023517
发表时间: 2013
期刊: Phys. Rev. D
影响因子: --
作者: [M. Kawasaki, T. Kobayashi and F. Takahashi, 諸井健夫, M. Kawasaki and M. Yamada]
通讯作者: M. Kawasaki and M. Yamada
Hubble-induced mass from MSSM plasma
MSSM 等离子体的哈勃感应质量
DOI: 10.1088/1475-7516/2013/04/008
发表时间: 2013
期刊: Journal of Cosmology and Astroparticle Physics
影响因子: 6.4
作者: [T. Fujita, M. Kawasaki, Y. Tada and T. Takesako, Tomohiro Takesako]
通讯作者: Tomohiro Takesako
40
    Neural substrate for perspective taking from self to other
    Surface photochemical reaction dynamics
    • 批准号:
      20245005
    • 项目类别:
      Grant-in-Aid for Scientific Research (A)
    • 资助金额:
      $14.89万
    • 财政年份:
      2008
    • 负责人:
      KAWASAKI Masahiro
    • 依托单位:
    Social reward motivation increases working memory capacity
    Research for the early universe using observational data
    • 批准号:
      18540254
    • 项目类别:
      Grant-in-Aid for Scientific Research (C)
    • 资助金额:
      $2.62万
    • 财政年份:
      2006
    • 负责人:
      KAWASAKI Masahiro
    • 依托单位:
    海外基金