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arXiv 0707.2767nucl-th
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奇异夸克对中微子和反中微子核通过中性流散射的贡献

Strange quark contributions to neutrino and antineutrino nucleus scattering via neutral current in quasi-elastic region

K. S. Kim, Myung Ki Cheoun

摘要:

在相对论单粒子模型的框架下,通过准弹性区中微子诱导的敲除核子过程,从核子水平研究了中微子散射中奇异夸克对中性流反应的贡献,并将其推广到$^{12}$ C靶核.中微子(反中微子)散射的入射能量范围为500 MeV和1.0 GeV之间。相对论光学势包含了末态相互作用对被敲出核子的影响。我们发现中微子和反中微子散射截面的不对称性对奇异夸克含量的敏感性有显著影响。具体地说,$A (ν({\bar ν}), ν^{'} ({\bar ν}^{'}) N)$反应在寻找奇异性方面显示出非常灵敏的测试。

英文摘要:

Strange quark contributions to the neutral current reaction in the neutrino scattering are investigated on the nucleon level and extended to the $^{12}$C target nucleus through the neutrino-induced knocked-out nucleon process in the quasi-elastic region within the framework of a relativistic single particle model. The incident energy range between 500 MeV and 1.0 GeV is used for the neutrino(antineutrino) scattering. Effects of the final state interaction for the knocked-out nucleon are included by a relativistic optical potential. We found that the sensitivity of the strange quark contents could be salient on the asymmetry between neutrino and antineutrino scattering cross sections. In specific, $A (ν({\bar ν}), ν^{'} ({\bar ν}^{'}) N)$ reaction is shown to be very sensitive test in the searches of the strangeness.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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