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D^+→η^(')l+ν_l semileptonic decays in light-cone sum rules
  • ISSN号:1674-1137
  • 期刊名称:《中国物理C:英文版》
  • 时间:0
  • 分类:O572.33[理学—粒子物理与原子核物理;理学—物理] TP273[自动化与计算机技术—控制科学与工程;自动化与计算机技术—检测技术与自动化装置]
  • 作者机构:[1]Department of Physics, Xuzhou Normal University, Xuzhou 221116, China, [2]Institute of Physics, Jilin Normal University, Siping 136000, China
  • 相关基金:Supported by National Natural Science Foundation of China (11047014)
中文摘要:

We calculate the D→η transition form factor in light-cone sum rules by taking improved current correlators to avoid the pollution from the twist-3 wave function. We get consistent results of the D+→η(′)l+νl decays with the experimental data. By comparing the difference between the results of the branching ratios of D+→η(′)l+νl from a two-pole parameterization model and from a BZ parameterization model, we find that the two-pole model and the BZ model are comparably believable. One way is supposed for the determination of the η-η mixing angle from the dependence of the branching ratios of D+→η(′)l+νl decays on the η-η mixing angle.

英文摘要:

We calculate the D → η transition form factor in light-cone sum rules by taking improved current correlators to avoid the pollution from the twist-3 wave function. We get consistent results of the D+ → η^(')l+νl decays with the experimental data. By comparing the difference between the results of the branching ratios of D+ → η^(')l+νl from a two-pole parameterization model and from a BZ parameterization model, we find that the two-pole model and the BZ model are comparably believable. One way is supposed for the determination of the η-η mixing angle from the dependence of the branching ratios of D+ → η^(')l+νl decays on the η-η mixing angle.

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期刊信息
  • 《中国物理C:英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院高能物理研究所 中国科学院近代物理研究所
  • 主编:王贻芳
  • 地址:北京市玉泉路19号(乙)
  • 邮编:100049
  • 邮箱:cpc@mail.ihep.ac.cn
  • 电话:010-88235947
  • 国际标准刊号:ISSN:1674-1137
  • 国内统一刊号:ISSN:11-5641/O4
  • 邮发代号:2-522
  • 获奖情况:
  • 2000年获中国科学院优秀期刊评比一等奖,中国期刊方阵“双百”期刊
  • 国内外数据库收录:
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  • 被引量:189