High-precision measurement of the left-right Z Boson cross-section asymmetry.
- Abe, K
- Abe, K
- Abe, T
- Adam, I
- Akimoto, H
- Aston, D
- Baird, KG
- Baltay, C
- Band, HR
- Barklow, TL
- Bauer, JM
- Bellodi, G
- Berger, R
- Blaylock, G
- Bogart, JR
- Bower, GR
- Brau, JE
- Breidenbach, M
- Bugg, WM
- Burke, D
- Burnett, TH
- Burrows, PN
- Calcaterra, A
- Cassell, R
- Chou, A
- Cohn, HO
- Coller, JA
- Convery, MR
- Cook, V
- Cowan, RF
- Crawford, G
- Damerell, CJ
- Daoudi, M
- Dasu, S
- de Groot, N
- de Sangro, R
- Dong, DN
- Doser, M
- Dubois, R
- Erofeeva, I
- Eschenburg, V
- Etzion, E
- Fahey, S
- Falciai, D
- Fernandez, JP
- Fero, MJ
- Flood, K
- Frey, R
- Hart, EL
Publication date
June 2000
DOI Publisher
American Physical Society (APS) Journal
Physical Review LettersAbstract
We present a measurement of the left-right cross-section asymmetry ( A(LR)) for Z boson production by e(+)e(-) collisions. The measurement includes the final data taken with the SLD detector at the SLAC Linear Collider during the period 1996-1998. Using a sample of 383 487 Z decays collected during the 1996-1998 runs we measure the pole value of the asymmetry, A(0)(LR), to be 0.150 56+/-0.002 39 which is equivalent to an effective weak mixing angle of sin (2)straight theta(eff)(W) = 0.231 07+/-0.000 30. Our result for the complete 1992-1998 data set comprising approximately 537 000 Z decays is sin (2)straight theta(eff)(W) = 0.230 97+/-0.000 27
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