Recent Electroweak Results from SLC/SLD

Technical Report · Fri Jun 06 00:00:00 EDT 2003

DOI:https://doi.org/10.2172/813212· OSTI ID:813212

Frey, Raymond ^[1]

---

1. SLAC

Key electroweak measurements performed by the SLD collaboration at the SLC are described and recent results given. The left-right cross-section asymmetry, A{sub LR}, has been updated to include the 1996 data. It remains the single most precise measurement of sin{sup 2} {theta}{sub W}{sup eff}, and it is compared to the LEP results. The polarized differential cross section for b-quarks is measured and is used to perform a unique direct measurement of the parity violation parameter for b quarks, A{sub b}. The excellent capability to perform secondary vertexing at SLC with CCD-based vertex detectors is described, including first physics results with the new detector VXD3. The vertexing is used to full advantage to make a highly pure B tag to measure the fraction of hadronic Z{sup 0} decays going to b quarks, R{sub b}. The vertexing, in combination with electron-beam polarization, is used to measure B{sub d}{sup 0} mixing. The prospects for making a B{sub s}{sup 0} mixing measurement are excellent given good SLC performance in the upcoming SLC run(s).

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (US)
• Sponsoring Organization: USDOE Office of Science (US)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 813212
• Report Number(s): SLAC-PUB-9930
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B QUARKS
DIFFERENTIAL CROSS SECTIONS
PARITY
PERFORMANCE
PHYSICS
POLARIZATION