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Title: Extraction of the width of the W boson from measurements of {sigma}(pp(bar sign){yields}W+X)xB(W{yields}e{nu}) and {sigma}(pp(bar sign){yields}Z+X)xB(Z{yields}ee) and their ratio

Abstract

We report on measurements on inclusive cross sections times branching fractions into electrons for W and Z bosons produced in pp(bar sign) collisions at {radical}(s)=1.8 TeV. From an integrated luminosity of 84.5 pb-1 recorded in 1994-1995 using the DOe detector at the Fermilab Tevatron, we determine {sigma}(pp(bar sign){yields}W+X)xB(W{yields}e{nu})=2310{+-}10(stat){+-}50(syst){+-}100(lum)pb and {sigma}(pp(bar sign){yields}Z+X)xB(Z{yields}ee)=221{+-}3(stat){+-}4(syst){+-}10(lum)pb. From these, we derive {sigma}(pp(bar sign){yields}W+X)xB(W{yields}e{nu})/{sigma}(pp(bar sign){yields}Z+X)xB(Z{yields}ee)=10.43{+-}0.15(stat){+-}0.20(syst){+-}0.10(NLO), B(W{yields}e{nu})=0.1044{+-}0.0015(stat){+-}0.0020(syst){+-}0.0017(theory){+-}0.00= 10(NLO), and {gamma}{sub W}=2.169{+-}0.031(stat){+-}0.042(syst){+-}0.041(theory){+-}0.022(NLO)Ge= V. We use the latter to set a 95% confidence level upper limit on the partial decay width of the W boson into nonstandard model final states, {gamma}{sub W}{sup inv}, of 0.213 GeV. Combining these results with those from the 1992-1993 data gives {sigma}(pp(bar sign){yields}W+X)xB(W{yields}e{nu})/{sigma}(pp(bar sign){yields}Z+X)xB(Z{yields}ee)=10.51{+-}0.25, {gamma}{sub W}=2.152{+-}0.066 GeV, and a 95% C.L. upper limit on {gamma}{sub W}{sup inv} of 0.191 GeV. Using a sample with a luminosity of 505 nb-1 taken at {radical}(s)=630 GeV, we measure {sigma}(pp(bar sign){yields}W+X)xB(W{yields}e{nu})=658{+-}67 pb. (c) 2000 The American Physical Society.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [7];  [8];  [9];  [10]
  1. New York University, New York, New York 10003 (United States)
  2. Michigan State University, East Lansing, Michigan 48824 (United States)
  3. Institute for High Energy Physics, Protvino, Russia (Russian Federation)
  4. Tata Institute of Fundamental Research, Mumbai, (India)
  5. Columbia University, New York, New York 10027 (United States)
  6. Rice University, Houston, Texas 77005 (United States)
  7. University of Illinois at Chicago, Chicago, Illinois 60607 (United States)
  8. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
  9. Institute for Theoretical and Experimental Physics, Moscow, Russia (Russian Federation)
  10. LAFEX, Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, (Brazil)
Publication Date:
OSTI Identifier:
20215946
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 61; Journal Issue: 7; Other Information: PBD: 1 Apr 2000; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; PROTON-ANTIPROTON INTERACTIONS; W MINUS BOSONS; W PLUS BOSONS; Z NEUTRAL BOSONS; CROSS SECTIONS; BRANCHING RATIO; FERMILAB TEVATRON; INTERMEDIATE BOSONS; EXPERIMENTAL DATA

Citation Formats

Abbott, B, Abolins, M, Abramov, V, Acharya, B S, Adam, I, Adams, D L, Adams, M, Ahn, S, Akimov, V, and Alves, G A. Extraction of the width of the W boson from measurements of {sigma}(pp(bar sign){yields}W+X)xB(W{yields}e{nu}) and {sigma}(pp(bar sign){yields}Z+X)xB(Z{yields}ee) and their ratio. United States: N. p., 2000. Web. doi:10.1103/PhysRevD.61.072001.
Abbott, B, Abolins, M, Abramov, V, Acharya, B S, Adam, I, Adams, D L, Adams, M, Ahn, S, Akimov, V, & Alves, G A. Extraction of the width of the W boson from measurements of {sigma}(pp(bar sign){yields}W+X)xB(W{yields}e{nu}) and {sigma}(pp(bar sign){yields}Z+X)xB(Z{yields}ee) and their ratio. United States. doi:10.1103/PhysRevD.61.072001.
Abbott, B, Abolins, M, Abramov, V, Acharya, B S, Adam, I, Adams, D L, Adams, M, Ahn, S, Akimov, V, and Alves, G A. Sat . "Extraction of the width of the W boson from measurements of {sigma}(pp(bar sign){yields}W+X)xB(W{yields}e{nu}) and {sigma}(pp(bar sign){yields}Z+X)xB(Z{yields}ee) and their ratio". United States. doi:10.1103/PhysRevD.61.072001.
@article{osti_20215946,
title = {Extraction of the width of the W boson from measurements of {sigma}(pp(bar sign){yields}W+X)xB(W{yields}e{nu}) and {sigma}(pp(bar sign){yields}Z+X)xB(Z{yields}ee) and their ratio},
author = {Abbott, B and Abolins, M and Abramov, V and Acharya, B S and Adam, I and Adams, D L and Adams, M and Ahn, S and Akimov, V and Alves, G A},
abstractNote = {We report on measurements on inclusive cross sections times branching fractions into electrons for W and Z bosons produced in pp(bar sign) collisions at {radical}(s)=1.8 TeV. From an integrated luminosity of 84.5 pb-1 recorded in 1994-1995 using the DOe detector at the Fermilab Tevatron, we determine {sigma}(pp(bar sign){yields}W+X)xB(W{yields}e{nu})=2310{+-}10(stat){+-}50(syst){+-}100(lum)pb and {sigma}(pp(bar sign){yields}Z+X)xB(Z{yields}ee)=221{+-}3(stat){+-}4(syst){+-}10(lum)pb. From these, we derive {sigma}(pp(bar sign){yields}W+X)xB(W{yields}e{nu})/{sigma}(pp(bar sign){yields}Z+X)xB(Z{yields}ee)=10.43{+-}0.15(stat){+-}0.20(syst){+-}0.10(NLO), B(W{yields}e{nu})=0.1044{+-}0.0015(stat){+-}0.0020(syst){+-}0.0017(theory){+-}0.00= 10(NLO), and {gamma}{sub W}=2.169{+-}0.031(stat){+-}0.042(syst){+-}0.041(theory){+-}0.022(NLO)Ge= V. We use the latter to set a 95% confidence level upper limit on the partial decay width of the W boson into nonstandard model final states, {gamma}{sub W}{sup inv}, of 0.213 GeV. Combining these results with those from the 1992-1993 data gives {sigma}(pp(bar sign){yields}W+X)xB(W{yields}e{nu})/{sigma}(pp(bar sign){yields}Z+X)xB(Z{yields}ee)=10.51{+-}0.25, {gamma}{sub W}=2.152{+-}0.066 GeV, and a 95% C.L. upper limit on {gamma}{sub W}{sup inv} of 0.191 GeV. Using a sample with a luminosity of 505 nb-1 taken at {radical}(s)=630 GeV, we measure {sigma}(pp(bar sign){yields}W+X)xB(W{yields}e{nu})=658{+-}67 pb. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevD.61.072001},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 7,
volume = 61,
place = {United States},
year = {2000},
month = {4}
}