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Giant Mesonic Effects in the Time Component of Weak Nucleon Axial Vector, and Chiral Invariance

Giant Mesonic Effects in the Time Component of Weak Nucleon Axial Vector, and Chiral Invariance
弱核子轴向矢量时间分量的巨介子效应和手性不变性
批准号:
63420006
负责人:
MINAMISONO Tadanori
金额:
$21.95万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for General Scientific Research (A)
财政年份:
1988
资助国家:
日本
项目状态:
已结题
起止时间:
1988 至 1990

项目摘要

项目成果

MINAMISONO Tadanori的其他基金

相关文献

中文摘要
翻译
由于较弱的核轴向载体的类似时态分量的软先锋效应依赖于动量转移在衰变过程中,其效应被极大地增强了,与空间分量相比;它达到了脉冲值的40%左右。这是因为这种巨大的增强,它是适合于测试版调查的探测--衰变过程、手性变化和作为核武器的本质。对于这样的实验性工作,镜像测试期的对齐相关性,以及0^--0 ^+转换率已经被量化的数量。由于那些价值与较弱的磁性条件一样小,因此,测量的第一步是在测试射线探测器中开发设备,使其从分散的测试射线中免费获得,并采用开发自旋操纵技术,该技术是一种有效的方法,将自旋对齐转换为从大的极化传感器。由于这些技术改进,它很可能很好地从^ B和^ N的能量指标的分析中精确地利用弱磁性形式因素<12><12>。因此,这一术语也可以用作对核武器有效体积的探测,哪些可能用于核武器中夸克效应的研究;当前项目的另一个重要方向是为自旋极化测试版的生产开发设施--为当前研究提供核武器。一种新的加速技术已经开发出来,以获得100 keV/Nucleon的不稳定目标片段, i。e.,一个RFQ LINAC与一个离子源相连。为了比较离子,波束-燃料方法已经开发出来。另一个设备是在高能重离子反应中产生的高能投影片的碎片分离器。在这种情况下,它被发现了,因为这个投影在反应本身中变得两极化。
英文摘要
Since the soft-pionic effect in the time-like component of the weak nucleon axial vector is dependent on the momentum transferred in the decay process, the effect are very much enhanced compared with that of the space components ; it reaches to about 40 % of the impulse value. Because of such huge enhancement, it is suitable as a probe for the investigation of the betaーDecay processes, chiral invariance, and the nature of the pion as boson. For such experimental works, the alignment correlation coefficients of mirror beta decays, and the 0^---0^+ transition rates have been the quantities to be measured. As those values were as small as the weak magnetism term, the first step of the measurements was to develop equipments in which the beta-ray detectors were free from the scattered beta rays, and to develop spin manipulating technique that was imperative to create spin alignments converted from largely polarized ensemble. Because of these technical improvements, it became possible to deduce precisely the weak magnetism form factor from the analyses of the energy spectra of ^<12>B and ^<12>N. Therefore, this term can also be used as a probe of the effective masses of the nucleons, which may be used for the studies of quark effects in nucleus.One other important direction of the present project was to develop facilities for the production of the spin polarized betaーemitting nuclides for the present studies. A new acceleration techniques was developed for the unstable target fragments to get 100 keV/nucleon, i. e., an RFQ LINAC was connected with an ion source. To polarize the ions, beam-foil method was developed. Another equipment was fragment separator for the high-energy projectile fragments produced in high-energy heavy-ion reactions. In this case, it was discovered that the projectile was polarized in the reaction itself.
期刊论文(23)
专著(0)
科研奖励(0)
会议论文
T.Minamisono: "Magnetic Moment of BetaーEmitting ^<41>Sc(I^π=7/2^-) and Knight Shift in Pt Metal." Hyperfine Interactions. 59. 149-152 (1990)
T.Minamisono:“Pt 金属中 Beta 发射 ^<41>Sc(I^π=7/2^-) 的磁矩和奈特位移。”59. 149-152 (1990)
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A.Ozawa: "Operation of RFQ Linac for Acceleration of BetaーEmitters" Annual Report 1989, Osaka Univ.Lab.Nuclear Studies. 78-79 (1990)
A.Ozawa:“RFQ 直线加速器加速 Beta 发射器的操作”1989 年年度报告,大阪大学实验室核研究 78-79 (1990)。
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22
    Nuclear Matter Density Dependences of Non-Nucleonic Degrees of Freedom
    • 批准号:
      09304032
    • 项目类别:
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    • 资助金额:
      $25.15万
    • 财政年份:
      1997
    • 负责人:
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    • 依托单位:
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    • 批准号:
      08554005
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      Grant-in-Aid for Scientific Research (A)
    • 资助金额:
      $11.01万
    • 财政年份:
      1996
    • 负责人:
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    • 依托单位:
    High-Energy Unstable-Isotope Beams and New Nuclear Sciences
    • 批准号:
      04044102
    • 项目类别:
      Grant-in-Aid for international Scientific Research
    • 资助金额:
      $15.17万
    • 财政年份:
      1992
    • 负责人:
      MINAMISONO Tadanori
    • 依托单位:
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    • 批准号:
      60890008
    • 项目类别:
      Grant-in-Aid for Developmental Scientific Research
    • 资助金额:
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