[SLAC] [SLAC Pubs and Reports]
An Improved Test of the Flavor Independence of Strong Interactions
AbstractWe 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 avor-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 ql antiql , c anti-c, and b anti-b 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: alphacs/alphaudss = 1.036 +/- 0.043 (stat.)+0.041-0.045 (syst.)+0.020-0.018 (theory) and alphabs/alphaudss=1.004 +/- 1.018 (stat.)+0.026-0.031 (syst.)+0.018-0.029 (theory).
- slac-pub-7660 (376 KB)
- slac-pub-7660 (58.6 KB)
NotesThe PDF version of this document was distilled from a PostScript file created from LaTeX source which may have used Type 3 fonts. The resultant PDF may be unreadable on the screen at the default viewing magnification, though the fonts will be legible at slightly higher magnifications.
Despite the cosmetic problems resulting from the Type 3 fonts, such PDF files print without problems; likewise, the onscreen text is searchable and selectable.
More InformationFull bibliographic data for this document, including its complete author list, is (or soon will be) available from SLAC's SPIRES-HEP Database.
Please report problems with this file to firstname.lastname@example.org. The SLAC preprint inventory is provided by the SLAC Technical Publications Department.
Page generated 04 Apr 2001 @ 15:10 PDT by htmlme.pl