Charm- and Bottom-Quark Masses: Recent Sum Rule Results

J. Kühn
{"title":"Charm- and Bottom-Quark Masses: Recent Sum Rule Results","authors":"J. Kühn","doi":"10.22323/1.303.0007","DOIUrl":null,"url":null,"abstract":"Recent experimental results on the cross section for electron-positron annihilation into hadrons \nin the low energy region between roughly 3 GeV and 10 GeV, combined with an improved \ndetermination of the strong coupling and increasingly precise theory results on sum rules have \nlead to determinations of charm- and bottom-quark masses with accuracies of around 10 MeV. \nThe final results, expressed in the MS scheme, have lead to $m_{c}$ (3 GeV) = 993(8) MeV and \n$m_{b}$ $(m_{b})$ = 4163(16) MeV, and are thus among the most precise determinations of these standard \nmodel parameters. These results are, furthermore, nicely consistent with completely independent \nlattice results and allow precise predictions for a number of experimental observables like Higgs \ndecays into charm- or bottom-quarks. A critical analysis of the theoretical and experimental un- \ncertainties of this analysis is presented in the following.","PeriodicalId":140132,"journal":{"name":"Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2018)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of Loops and Legs in Quantum Field Theory — PoS(LL2018)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.22323/1.303.0007","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

Recent experimental results on the cross section for electron-positron annihilation into hadrons in the low energy region between roughly 3 GeV and 10 GeV, combined with an improved determination of the strong coupling and increasingly precise theory results on sum rules have lead to determinations of charm- and bottom-quark masses with accuracies of around 10 MeV. The final results, expressed in the MS scheme, have lead to $m_{c}$ (3 GeV) = 993(8) MeV and $m_{b}$ $(m_{b})$ = 4163(16) MeV, and are thus among the most precise determinations of these standard model parameters. These results are, furthermore, nicely consistent with completely independent lattice results and allow precise predictions for a number of experimental observables like Higgs decays into charm- or bottom-quarks. A critical analysis of the theoretical and experimental un- certainties of this analysis is presented in the following.
粲夸克和底夸克质量:最近的和规则结果
在大约3gev和10gev之间的低能区,电子-正电子湮灭成强子的横截面的最新实验结果,结合对强耦合的改进测定和对求和规则的日益精确的理论结果,导致了粲夸克和底夸克质量的测定精度在10mev左右。用MS格式表示的最终结果是$m_{c}$ (3 GeV) = 993(8) MeV和$m_{b}$ $(m_{b})$ = 4163(16) MeV,因此是这些标准模型参数最精确的确定之一。此外,这些结果与完全独立的晶格结果很好地一致,并允许对一些实验可观测物进行精确预测,比如希格斯粒子衰变成迷人夸克或底夸克。下面将对该分析的理论和实验不确定性进行批判性分析。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
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
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
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 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信