Direct Measurement of Ab in Z0 Decays Using Charged Kaon Tagging
Physical Review Letters Volume 83 Issue 10
Page 1902-1907
published_at 1999-09-06
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| File | |
| Title ( eng ) |
Direct Measurement of Ab in Z0 Decays Using Charged Kaon Tagging
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| Creator |
SLD Collaboration
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| Source Title |
Physical Review Letters
|
| Volume | 83 |
| Issue | 10 |
| Start Page | 1902 |
| End Page | 1907 |
| Abstract |
We present a direct measurement of the parity-violating asymmetry Ab in the Z0 to bb̅ coupling using a new technique to distinguish the b and b̅ quarks using charged kaons from B decays. The Z0 bosons are produced in e+e- collisions at the SLC with longitudinally polarized electrons. bb̅ events are selected using a secondary vertex mass tag and Ab is determined from the left-right forward-backward asymmetry. From the 1994–1995 data sample, selected from 100 000 hadronic Z0 decays, we obtain Ab = 0.855±0.088stat±0.102syst.
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 1999-09-06 |
| Rights |
Copyright (c) 1999 American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.83.1902
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.83.1902
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