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Title: First evidence for WW and WZ diboson production with semi-leptonic decays at a Hadron Collider

Abstract

Presented is a measurement of the simultaneous production of a W ± boson in association with a second weak boson (W ± or Z 0) in p$$\bar{p}$$ collisions at √s = 1.96 TeV. Events are consider with one electron or one muon, missing transverse energy, and at least two hadronic jets. The data were collected by the D0 detector in Run IIa of the Tevatron accelerator and correspond to 1.07 fb -1 of integrated luminosity for each of the two channels (WW/WZ → evq$$\bar{q}$$ and WW/WZ → μvq$$\bar{q}$$). The cross section for WW + WZ production is measured to be 20.2 ± 2.5(stat) ± 3.6(sys) ± 1.2(lum) pb with a Gaussian significance of 4.4 standard deviations above the background-only scenario. This measurement is consistent with the Standard Model prediction and represents the first direct evidence for WW and WZ production with semi-leptonic decays at a hadron collider.

Authors:
 [1]
  1. Princeton Univ., NJ (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
950511
Report Number(s):
FERMILAB-THESIS-2009-05; FERMILAB-PUB-08-457-E
TRN: US0902004
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Thesis/Dissertation
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ACCELERATORS; BOSONS; CROSS SECTIONS; ELECTRONS; FERMILAB TEVATRON; FORECASTING; HADRONS; LUMINOSITY; PRODUCTION; STANDARD MODEL; TRANSVERSE ENERGY; Experiment-HEP

Citation Formats

Haley, Joseph Glenn Biddle. First evidence for WW and WZ diboson production with semi-leptonic decays at a Hadron Collider. United States: N. p., 2009. Web. doi:10.2172/950511.
Haley, Joseph Glenn Biddle. First evidence for WW and WZ diboson production with semi-leptonic decays at a Hadron Collider. United States. https://doi.org/10.2172/950511
Haley, Joseph Glenn Biddle. Mon . "First evidence for WW and WZ diboson production with semi-leptonic decays at a Hadron Collider". United States. https://doi.org/10.2172/950511. https://www.osti.gov/servlets/purl/950511.
@article{osti_950511,
title = {First evidence for WW and WZ diboson production with semi-leptonic decays at a Hadron Collider},
author = {Haley, Joseph Glenn Biddle},
abstractNote = {Presented is a measurement of the simultaneous production of a W± boson in association with a second weak boson (W± or Z0) in p$\bar{p}$ collisions at √s = 1.96 TeV. Events are consider with one electron or one muon, missing transverse energy, and at least two hadronic jets. The data were collected by the D0 detector in Run IIa of the Tevatron accelerator and correspond to 1.07 fb-1 of integrated luminosity for each of the two channels (WW/WZ → evq$\bar{q}$ and WW/WZ → μvq$\bar{q}$). The cross section for WW + WZ production is measured to be 20.2 ± 2.5(stat) ± 3.6(sys) ± 1.2(lum) pb with a Gaussian significance of 4.4 standard deviations above the background-only scenario. This measurement is consistent with the Standard Model prediction and represents the first direct evidence for WW and WZ production with semi-leptonic decays at a hadron collider.},
doi = {10.2172/950511},
url = {https://www.osti.gov/biblio/950511}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {6}
}

Thesis/Dissertation:
Other availability
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