Improved test of the flavor independence of strong interactions

Physical Review D - Particles, Fields, Gravitation and Cosmology 59 巻 1 号 012002-1-012002-14 頁 1998-11-17 発行
アクセス数 : 720
ダウンロード数 : 151

今月のアクセス数 : 0
今月のダウンロード数 : 1
ファイル情報(添付)
PhysRevD_59_012002.pdf 237 KB 種類 : 全文
タイトル ( eng )
Improved test of the flavor independence of strong interactions
作成者
SLD Collaboration
収録物名
Physical Review D - Particles, Fields, Gravitation and Cosmology
59
1
開始ページ 012002-1
終了ページ 012002-14
抄録
We present an improved comparison of the strong coupling of the gluon to light (ql=u+d+s), c, and b quarks, determined from multijet rates in flavor-tagged samples of hadronic Z0 decays recorded with the SLC Large Detector at the SLAC Linear Collider between 1993 and 1995. Flavor separation among primary qlql, cc̅, and bb̅ final states was made on the basis of the reconstructed mass of long-lived heavy-hadron decay vertices, yielding tags with high purity and low bias against ⩾ 3-jet final states. We find: αsc/αsuds=1.036±0.043(stat)-0.045+0.041(syst)-0.018+0.020(theory) and αsb/αsuds=1.004±0.018(stat)-0.031+0.026(syst)-0.029+0.018(theory).
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 1998-11-17
権利情報
Copyright (c) 1998 American Physical Society.
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 1550-7998
[DOI] 10.1103/PhysRevD.59.012002
[NCID] AA00773624
[DOI] http://dx.doi.org/10.1103/PhysRevD.59.012002