| Title: |
Measurement of the bb¯ fraction in hadronic Z0 decays with precision vertex detectors |
| Authors: |
Jacobsen, RG; Koetke, DS; Adolphsen, CE; Fujino, D; Schumm, BA; Wagner, SR; Alexander, JP; Averill, D; Barish, BC; Barklow, T; Barnett, BA; Blockus, D; Boyarski, A; Brabson, B; Breakstone, A; Bulos, F; Burchat, PR; Burke, DL; Cence, RJ; Chapman, J; Chmeissani, M; Cords, D; Coupal, DP; Dauncey, P; DeStaebler, HC; Dorfan, JM; Drell, PS; Drewer, DC; Durrett, D; Elia, R; Feldman, GJ; Field, RC; Ford, WT; Fordham, C; Frey, R; Gan, KK; Gero, E; Gidal, G; Glanzman, T; Goldhaber, G; Cadenas, JJ Gomez; Gratta, G; Hanson, G; Harr, R; Harral, B; Harris, FA; Hayes, K; Hearty, C; Heusch, CA; Hildreth, MD; Himel, T; Hinshaw, DA; Hong, SJ; Hutchinson, D; Hylen, J; Innes, WR; Jaros, JA; Jung, CK; Kadyk, JA; Kenney, C; King, M; Komamiya, S; Kowalski, LA; Kral, JF; Kuhlen, M; Labarga, L; Lankford, AJ; Le Diberder, F; Levi, ME; Litke, AM; Lou, XC; Lüth, V; McKenna, JA; Matthews, JAJ; Mattison, T; Moffeit, KC; Munger, CT; Murray, WN; Nash, J; Ogren, H; O’Shaughnessy, KF; Parker, SI; Peck, C; Perl, ML; Petradza, M; Pitthan, R; Porter, FC; Rankin, P; Rust, DR; Sadrozinski, HFW; Schwarz, AS; Seiden, A; Smith, JG; Snyder, A; Soderstrom, E; Stoker, DP; Stroynowski, R; Swartz, M; Thun, R; Trilling, GH |
| Source: |
Physical Review Letters, vol 67, iss 24 |
| Publisher Information: |
eScholarship, University of California |
| Publication Year: |
1991 |
| Collection: |
University of California: eScholarship |
| Subject Terms: |
5106 Nuclear and Plasma Physics (for-2020); 5107 Particle and High Energy Physics (for-2020); 51 Physical Sciences (for-2020); 01 Mathematical Sciences (for); 02 Physical Sciences (for); 09 Engineering (for); General Physics (science-metrix); 40 Engineering (for-2020); 49 Mathematical sciences (for-2020) |
| Time: |
3347 - 3350 |
| Description: |
We have measured the fraction of bb¯ events in hadronic Z0 decays, Rbb¯, using the vertex detector system of the Mark II detector at the SLAC Linear Collider. We tag bb¯ events by requiring the coincidence of three or more tracks with significant impact parameters. This tag is 50% efficient and results in a sample of 85% purity. We find Rbb¯=0.251±0.049±0.030, in good agreement with other measurements and the standard model prediction. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
unknown |
| Relation: |
qt76j243x3; https://escholarship.org/uc/item/76j243x3; https://escholarship.org/content/qt76j243x3/qt76j243x3.pdf |
| DOI: |
10.1103/physrevlett.67.3347 |
| Availability: |
https://escholarship.org/uc/item/76j243x3; https://escholarship.org/content/qt76j243x3/qt76j243x3.pdf; https://doi.org/10.1103/physrevlett.67.3347 |
| Rights: |
CC-BY |
| Accession Number: |
edsbas.1591CDE2 |
| Database: |
BASE |