skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Search for the standard model Higgs boson produced in association with a W± boson with 7.5 fb⁻¹ integrated luminosity at CDF

Journal Article · · Physical Review. D, Particles, Fields, Gravitation and Cosmology
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less

We present a search for the standard model Higgs boson produced in association with a W± boson. This search uses data corresponding to an integrated luminosity of 7.5 fb⁻¹ collected by the CDF detector at the Tevatron. We select WH→lνbb¯ candidate events with two jets, large missing transverse energy, and exactly one charged lepton. We further require that at least one jet be identified to originate from a bottom quark. Discrimination between the signal and the large background is achieved through the use of a Bayesian artificial neural network. The number of tagged events and their distributions are consistent with the standard model expectations. We observe no evidence for a Higgs boson signal and set 95% C.L. upper limits on the WH production cross section times the branching ratio to decay to bb¯ pairs, σ(pp¯→W±H)×B(H→bb¯), relative to the rate predicted by the standard model. For the Higgs boson mass range of 100 to 150 GeV/c² we set observed (expected) upper limits from 1.34 (1.83) to 38.8 (23.4). For 115 GeV/c² the upper limit is 3.64 (2.78). The combination of the present search with an independent analysis that selects events with three jets yields more stringent limits ranging from 1.12 (1.79) to 34.4 (21.6) in the same mass range. For 115 and 125 GeV/c² the upper limits are 2.65 (2.60) and 4.36 (3.69), respectively.

Sponsoring Organization:
USDOE
OSTI ID:
1103156
Journal Information:
Physical Review. D, Particles, Fields, Gravitation and Cosmology, Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology Vol. 86 Journal Issue: 3; ISSN 1550-7998
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

References (36)

The muon system upgrade for the CDF II experiment journal April 2001
Global Conservation Laws and Massless Particles journal November 1964
Broken Symmetry and the Mass of Gauge Vector Mesons journal August 1964
The CDF plug upgrade electromagnetic calorimeter: test beam results
  • Albrow, M.; Aota, S.; Apollinari, G.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 480, Issue 2-3 https://doi.org/10.1016/S0168-9002(01)01238-4
journal March 2002
Topology of three-jet events in p ¯ p collisions at s = 1.8 TeV journal March 1992
New Generation of Parton Distributions with Uncertainties from Global QCD Analysis journal July 2002
CDF Run II silicon tracking projects journal June 2000
Search for standard model Higgs boson production in association with a W boson at CDF journal March 2012
Measurement of the t t ¯ production cross section in p p ¯ collisions at s = 1.96 TeV using lepton + jets events with jet probability b -tagging journal October 2006
The tbar-t cross-section at 1.8 and 1.96 TeV: a study of the systematics due to parton densities and scale dependence journal April 2004
CDF Central Outer Tracker
  • Affolder, T.; Allspach, D.; Ambrose, D.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 526, Issue 3 https://doi.org/10.1016/j.nima.2004.02.020
journal July 2004
Search for WH associated production in 5.3 fb−1 of <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>p</mml:mi><mml:mover accent="true"><mml:mi>p</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math> collisions at the Fermilab Tevatron journal March 2011
Rejection of Multi-jet Background in pp̄ + jj̄ Channel through a SVM Classifier journal December 2011
Observation of single top quark production and measurement of | V t b | with CDF journal December 2010
Search for standard model Higgs boson production in association with a W  boson using a matrix element technique at CDF in p p ¯ collisions at s = 1.96 TeV journal April 2012
Measurement of the J / ψ meson and b -hadron production cross sections in p p ¯ collisions at s = 1960 G e V journal February 2005
High-energy-physics event generation with Pythia 6.1 journal April 2001
Confidence level computation for combining searches with small statistics journal September 1999
ALPGEN, a generator for hard multiparton processes in hadronic collisions journal July 2003
Combined search for the Standard Model Higgs boson using up to 4.9 fb−1 of pp collision data at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mtext> </mml:mtext><mml:mtext>TeV</mml:mtext></mml:math> with the ATLAS detector at the LHC journal March 2012
Top quark mass measurement using the template method in the lepton + jets channel at CDF II journal February 2006
The CDF central electromagnetic calorimeter
  • Balka, L.; Coover, K.; Diebold, R.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 267, Issue 2-3 https://doi.org/10.1016/0168-9002(88)90474-3
journal May 1988
First Measurements of Inclusive W and Z Cross Sections from Run II of the Fermilab Tevatron Collider journal March 2005
Online track processor for the CDF upgrade journal June 2002
HDECAY: a program for Higgs boson decays in the Standard Model and its supersymmetric extension journal January 1998
The CDF central and endwall hadron calorimeter
  • Bertolucci, S.; Cordelli, M.; Esposito, B.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 267, Issue 2-3 https://doi.org/10.1016/0168-9002(88)90476-7
journal May 1988
Broken symmetries, massless particles and gauge fields journal September 1964
Measurement of the t t ¯ production cross section in p p ¯ collisions at s = 1.96 TeV using lepton + jets events with secondary vertex b -tagging journal March 2005
Combined results of searches for the standard model Higgs boson in pp collisions at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mtext> TeV</mml:mtext></mml:math> journal March 2012
Search for the Standard Model Higgs boson at LEP journal July 2003
Fully differential single-top-quark cross section in next-to-leading order QCD journal September 2002
Test of 2000 phototubes for the CDF endplug calorimeter upgrade
  • Breccia, L.; Delchamps, S. W.; Fiori, I.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 532, Issue 3 https://doi.org/10.1016/j.nima.2004.05.122
journal October 2004
CDF central muon detector
  • Ascoli, G.; Holloway, L. E.; Karliner, I.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 268, Issue 1 https://doi.org/10.1016/0168-9002(88)90590-6
journal May 1988
Broken Symmetries and the Masses of Gauge Bosons journal October 1964
Determination of the jet energy scale at the Collider Detector at Fermilab
  • Bhatti, A.; Canelli, F.; Heinemann, B.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 566, Issue 2 https://doi.org/10.1016/j.nima.2006.05.269
journal October 2006
Next-to-leading order corrections to W + 2 jet and Z + 2 jet production at hadron colliders journal June 2002