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in creator/contributor: "Fujino, D."  
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Recent experience with backgrounds at the SLC

Description: During the 1990 SLC/Mark II runs, machine backgrounds visible in the new vertex detectors were studied. These detectors had active elements at radii from 3 to 17 cm and were subjected to backgrounds unique to linear colliders. We describe recent progress in identifying sources and developing control techniques. 4 refs., 3 figs.
Date: May 1, 1991
Creator: Jacobsen, R.; Band, H.; Barklow, T.; Bazarko, A.; Brown, K.; Burke, D. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Measurement of the B hadron lifetime at the SLC

Description: We have measured the average B hadron lifetime from Z{sup 0} {r arrow} b{bar b} events using the Mark II detector at the SLC. We use an impact parameter tag, requiring two or more tracks with significant impact parameter ({delta}) in a hemisphere, to obtain a 40% efficiency and an 80% B-purity. The {Sigma}{delta} distribution from charged tracks in the hemisphere opposite the tag is used to fit for {tau}{sub b}. From 53 tagged B decays we find {tau}{sub b} = 1.63{sub {minus}0.40}{sup +0.64}(sta… more
Date: November 1, 1991
Creator: Fujino, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Measurement of the B hadron lifetime at the SLC

Description: We have measured the average B hadron lifetime from Z{sup 0} {r_arrow} b{bar b} events using the Mark II detector at the SLC. We use an impact parameter tag, requiring two or more tracks with significant impact parameter ({delta}) in a hemisphere, to obtain a 40% efficiency and an 80% B-purity. The {Sigma}{delta} distribution from charged tracks in the hemisphere opposite the tag is used to fit for {tau}{sub b}. From 53 tagged B decays we find {tau}{sub b} = 1.63{sub {minus}0.40}{sup +0.64}(sta… more
Date: November 1, 1991
Creator: Fujino, D. & Collaboration., The MARK II
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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