Extraction of the width of the W boson from a measurement of the ratio of the W and Z cross sections [electronic resource]
This dissertation reports on measurements of inclusive cross sections times branching fractions into electrons for W and Z bosons produced in p{anti p} collisions at √s = 1.8 TeV. From an integrated luminosity of 84.5 pb⁻¹ recorded in 1994--1995 by the D0 detector at the Fermilab Tevatron Λ the cros...
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Online Access |
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| Corporate Authors: | , |
| Format: | Government Document Thesis Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Dept. of Energy. Office of Energy Research ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
2000.
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| Subjects: |
MARC
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| 245 | 0 | 0 | |a Extraction of the width of the W boson from a measurement of the ratio of the W and Z cross sections |h [electronic resource] |
| 260 | |a Washington, D.C. : |b United States. Dept. of Energy. Office of Energy Research ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, |c 2000. | ||
| 300 | |a vp. : |b digital, PDF file. | ||
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| 500 | |a Published through the Information Bridge: DOE Scientific and Technical Information. | ||
| 500 | |a 06/15/2000. | ||
| 500 | |a Gervasio Gomez. | ||
| 502 | |a Thesis (Ph.D.); Submitted to Univ. of Maryland, College Park, MD (US); 15 Jun 2000. | ||
| 520 | 3 | |a This dissertation reports on measurements of inclusive cross sections times branching fractions into electrons for W and Z bosons produced in p{anti p} collisions at √s = 1.8 TeV. From an integrated luminosity of 84.5 pb⁻¹ recorded in 1994--1995 by the D0 detector at the Fermilab Tevatron Λ the cross sections are measured to be σp{anti p} → W + X · B(W → eν) = 2,310 ± 10 (stat) ± 50 (Syst) ± 100 (lum) pb and σ(p{anti p} → Z + X) · B(Z → ee) = 221 ± 3 (stat) ± 4 (Syst) ± 10 (lum) pb. The cross section ratio R is determined to be σ(p{anti p} → W + X) · B(W → eν)/σ(p{bar p} → Z + X) · B(Z → ee) = 10.43 ± 0.15 (stat) ± 0.20 (syst) ± 0.10 (NLO)Λ and R is used to determine B(W → eν) = 0.1044 ± 0.0015 (stat) ± 0.0020 (syst) ± 0.0017 (theory) ± 0.0010 (NLO)Λ and Λ{sub W} = 2.169 ± 0.031 (stat) ± 0.042 (syst) ± 0.041 (theory) ± 0.022 (NLO) GeV. The latter is used to set a 95% confidence level upper limit on the partial decay width of the W boson into non-standard model final states ΛΛ{sub W}{sup inv}Λ of 0.213 GeV. | |
| 650 | 7 | |a Leptonic Decay. |2 local. | |
| 650 | 7 | |a Proton-antiproton Interactions. |2 local. | |
| 650 | 7 | |a Particle Widths. |2 local. | |
| 650 | 7 | |a W Plus Bosons. |2 local. | |
| 650 | 7 | |a W Minus Bosons. |2 local. | |
| 650 | 7 | |a Z Neutral Bosons. |2 local. | |
| 650 | 7 | |a Particle Production. |2 local. | |
| 650 | 7 | |a Branching Ratio. |2 local. | |
| 650 | 7 | |a Inclusive Interactions. |2 local. | |
| 650 | 7 | |a Physics Of Elementary Particles And Fields. |2 edbsc. | |
| 710 | 2 | |a Fermi National Accelerator Laboratory. |4 res. | |
| 710 | 1 | |a United States. |b Department of Energy. |b Office of Energy Research. |4 spn. | |
| 710 | 2 | |a Federal Energy Technology Center (U.S.). |4 res. | |
| 710 | 1 | |a United States. |b Department of Energy. |b Office of Scientific and Technical Information. |4 dst. | |
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