贝尔粲介子的分支分数和CP不对称性研究

A. Sangal
{"title":"贝尔粲介子的分支分数和CP不对称性研究","authors":"A. Sangal","doi":"10.22323/1.414.0720","DOIUrl":null,"url":null,"abstract":"𝐶𝑃 violation in charm meson decays is expected to be small within the Standard Model (SM) framework, and an observation of a large 𝐶𝑃 asymmetry could indicate new physics. We report measurement of branching fractions and direct 𝐶𝑃 asymmetries 𝐴 𝐶𝑃 in 𝐷 0 → 𝜋 + 𝜋 − 𝜂, 𝐾 + 𝐾 − 𝜂, 𝜙𝜂 and 𝐷 0 → 𝐾 0 𝑆 𝐾 0 𝑆 𝜋 + 𝜋 − decays. For the latter the T-odd asymmetry 𝑎 𝑇𝐶𝑃 sensitive to 𝐶𝑃 violation in the decay, is also measured. This report also covers the search for CP violation in 𝐷 → 𝐾ℎ𝜋𝜋 0 ( ℎ = 𝜋, 𝐾 ) decays. The results are based on the full data collected with the Belle detector at the KEKB asymmetric-energy 𝑒 + 𝑒 − collider.","PeriodicalId":286451,"journal":{"name":"Proceedings of 41st International Conference on High Energy physics — PoS(ICHEP2022)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Study of Branching fraction and CP Asymmetry of charm mesons at Belle\",\"authors\":\"A. Sangal\",\"doi\":\"10.22323/1.414.0720\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"𝐶𝑃 violation in charm meson decays is expected to be small within the Standard Model (SM) framework, and an observation of a large 𝐶𝑃 asymmetry could indicate new physics. We report measurement of branching fractions and direct 𝐶𝑃 asymmetries 𝐴 𝐶𝑃 in 𝐷 0 → 𝜋 + 𝜋 − 𝜂, 𝐾 + 𝐾 − 𝜂, 𝜙𝜂 and 𝐷 0 → 𝐾 0 𝑆 𝐾 0 𝑆 𝜋 + 𝜋 − decays. For the latter the T-odd asymmetry 𝑎 𝑇𝐶𝑃 sensitive to 𝐶𝑃 violation in the decay, is also measured. This report also covers the search for CP violation in 𝐷 → 𝐾ℎ𝜋𝜋 0 ( ℎ = 𝜋, 𝐾 ) decays. The results are based on the full data collected with the Belle detector at the KEKB asymmetric-energy 𝑒 + 𝑒 − collider.\",\"PeriodicalId\":286451,\"journal\":{\"name\":\"Proceedings of 41st International Conference on High Energy physics — PoS(ICHEP2022)\",\"volume\":\"31 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-12-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of 41st International Conference on High Energy physics — PoS(ICHEP2022)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.22323/1.414.0720\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of 41st International Conference on High Energy physics — PoS(ICHEP2022)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.22323/1.414.0720","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

在标准模型(SM)的框架内,粲介子衰变的不对称值的预测是很小的,而观测到的较大的不对称值可能预示着新的物理学。我们报告分支分数和直接测量𝐶𝑃不对称𝐴𝐶𝑃𝐷0→𝜋+𝜋−𝜂,𝐾+𝐾−𝜂,𝜙𝜂𝐷0→𝐾0𝑆𝐾0𝑆𝜋+𝜋−衰变。对于后者,也测量了t -奇数不对称𝑎𝑇. 00对衰变中的. 00违反很敏感。本报告还涵盖了在𝐷→𝐾 p_p_0 (p_p_0,𝐾)衰变中寻找CP违逆。该结果基于KEKB不对称能量𝑒+𝑒−对撞机Belle探测器收集的完整数据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Study of Branching fraction and CP Asymmetry of charm mesons at Belle
𝐶𝑃 violation in charm meson decays is expected to be small within the Standard Model (SM) framework, and an observation of a large 𝐶𝑃 asymmetry could indicate new physics. We report measurement of branching fractions and direct 𝐶𝑃 asymmetries 𝐴 𝐶𝑃 in 𝐷 0 → 𝜋 + 𝜋 − 𝜂, 𝐾 + 𝐾 − 𝜂, 𝜙𝜂 and 𝐷 0 → 𝐾 0 𝑆 𝐾 0 𝑆 𝜋 + 𝜋 − decays. For the latter the T-odd asymmetry 𝑎 𝑇𝐶𝑃 sensitive to 𝐶𝑃 violation in the decay, is also measured. This report also covers the search for CP violation in 𝐷 → 𝐾ℎ𝜋𝜋 0 ( ℎ = 𝜋, 𝐾 ) decays. The results are based on the full data collected with the Belle detector at the KEKB asymmetric-energy 𝑒 + 𝑒 − collider.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Jet fragmentation and QCD measurements at LHCb The ultimate CMS ECAL calibration and performance for the legacy reprocessing of LHC Run 2 data Sensitivity study for proton decay via $p→e^+ π^0 π^0$ and $p→μ^+ π^0 π^0$ in the Super-Kamiokande Detector The Laser-hybrid Accelerator for Radiobiological Applocations (LhARA) Status of the search for ${}^{48}$ Ca double beta decay with CANDLES
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1