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Title: Search for Standard Model Higgs Boson production in association with W boson at CDF

Abstract

No abstract prepared.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
892315
Report Number(s):
FERMILAB-CONF-06-148-E
TRN: US0701074
DOE Contract Number:
AC02-76CH03000
Resource Type:
Conference
Resource Relation:
Conference: Presented at Fermilab User's Meeting, Batavia, Illinois, 31 May-1 June 2006
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; FERMILAB; FERMILAB COLLIDER DETECTOR; HIGGS BOSONS; INTERMEDIATE BOSONS; PRODUCTION; STANDARD MODEL; Experiment-HEP

Citation Formats

Ishizawa, Y., Kim, S., Kondo, K., Kusakabe, Y., Masubuchi, t., McFarlane, M., Nielsen, J., Taffard, A., Yao, W., and /Tsukuba U. /Waseda U. /LBL, Berkeley /Illinois U., Urbana. Search for Standard Model Higgs Boson production in association with W boson at CDF. United States: N. p., 2006. Web.
Ishizawa, Y., Kim, S., Kondo, K., Kusakabe, Y., Masubuchi, t., McFarlane, M., Nielsen, J., Taffard, A., Yao, W., & /Tsukuba U. /Waseda U. /LBL, Berkeley /Illinois U., Urbana. Search for Standard Model Higgs Boson production in association with W boson at CDF. United States.
Ishizawa, Y., Kim, S., Kondo, K., Kusakabe, Y., Masubuchi, t., McFarlane, M., Nielsen, J., Taffard, A., Yao, W., and /Tsukuba U. /Waseda U. /LBL, Berkeley /Illinois U., Urbana. Mon . "Search for Standard Model Higgs Boson production in association with W boson at CDF". United States. doi:. https://www.osti.gov/servlets/purl/892315.
@article{osti_892315,
title = {Search for Standard Model Higgs Boson production in association with W boson at CDF},
author = {Ishizawa, Y. and Kim, S. and Kondo, K. and Kusakabe, Y. and Masubuchi, t. and McFarlane, M. and Nielsen, J. and Taffard, A. and Yao, W. and /Tsukuba U. /Waseda U. /LBL, Berkeley /Illinois U., Urbana},
abstractNote = {No abstract prepared.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2006},
month = {Mon May 01 00:00:00 EDT 2006}
}

Conference:
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  • We present a search for standard model Higgs boson production in association with a W boson in proton-antiproton collisions (p{bar p} {yields} W{sup {+-}}H {yields} {ell}{nu}b{bar b}) at a center of mass energy of 1.96 TeV. The search employs data collected with the CDF II detector which correspond to an integrated luminosity of approximately 1 fb{sup -1}. We select events consistent with a signature of a single lepton (e{sup {+-}}/{mu}{sup {+-}}), missing transverse energy, and two jets. Jets corresponding to bottom quarks are identified with a secondary vertex tagging method and a neural network filter technique. The observed number ofmore » events and the dijet mass distributions are consistent with the standard model background expectations, and we set 95% confidence level upper limits on the production cross section times branching ratio ranging from 3.9 to 1.3 pb for Higgs boson masses from 110 to 150 GeV/c{sup 2}, respectively.« less
  • This paper presents a search for standard model Higgs boson production in association with a W boson using events recorded by the CDF experiment in a dataset corresponding to an integrated luminosity of 5.6 fb{sup -1}. The search is performed using a matrix element technique in which the signal and background hypotheses are used to create a powerful discriminator. The discriminant output distributions for signal and background are fit to the observed events using a binned likelihood approach to search for the Higgs boson signal. We find no evidence for a Higgs boson, and 95% confidence level (C.L.) upper limitsmore » are set on {sigma}(p{bar p} {yields} WH) x {Beta}(H {yields} b{bar b}). The observed limits range from 3.5 to 37.6 relative to the standard model expectation for Higgs boson masses between m{sub H} = 100 GeV/c{sup 2} and m{sub H} = 150 GeV/c{sup 2}. The 95% C.L. expected limit is estimated from the median of an ensemble of simulated experiments and varies between 2.9 and 32.7 relative to the production rate predicted by the standard model over the Higgs boson mass range studied.« less
  • We present a search for the standard model Higgs boson production in association with amore » $W$ boson in proton-antiproton collisions ($$p\bar{p}\rightarrow W^\pm H \rightarrow \ell\nu b\bar{b}$$) at a center of mass energy of 1.96 TeV. The search employs data collected with the CDF II detector which correspond to an integrated luminosity of approximately 2.7 fb$$^{-1}$$. We recorded this data with two kinds of triggers. The first kind required high-p$$_T$$ charged leptons and the second required both missing transverse energy and jets. The search selects events consistent with a signature of a single lepton ($$e^\pm/\mu^\pm$$), missing transverse energy, and two jets. Jets corresponding to bottom quarks are identified with a secondary vertex tagging method and a jet probability tagging method. Kinematic information is fed in an artificial neural network to improve discrimination between signal and background. The search finds that both the observed number of events and the neural network output distributions are consistent with the standard model background expectations, and sets 95% confidence level upper limits on the production cross section times branching ratio. The limits are expressed as a ratio to the standard model production rate. The limits range from 3.6 (4.3 expected) to 61.1 (43.2 expected) for Higgs masses from 100 to 150 GeV/$$c^{2}$$, respectively.« less
  • We present a search for standard model Higgs boson production in association with a W boson in proton-antiproton collisions (pp{yields}W{sup {+-}}H{yields}l{nu}bb) at a center of mass energy of 1.96 TeV. The search employs data collected with the CDF II detector which correspond to an integrated luminosity of approximately 1 fb{sup -1}. We select events consistent with a signature of a single lepton (e{sup {+-}}/{mu}{sup {+-}}), missing transverse energy, and two jets. Jets corresponding to bottom quarks are identified with a secondary vertex tagging method and a neural network filter technique. The observed number of events and the dijet mass distributionsmore » are consistent with the standard model background expectations, and we set 95% confidence level upper limits on the production cross section times branching ratio ranging from 3.9 to 1.3 pb for Higgs boson masses from 110 to 150 GeV/c{sup 2}, respectively.« less
  • We present a search for standard model Higgs boson production in association with a W boson in proton-antiproton collisions (pp{yields}W{sup {+-}}H{yields}l{nu}bb) at a center of mass energy of 1.96 TeV. The search employs data collected with the CDF II detector that correspond to an integrated luminosity of approximately 1.9 fb{sup -1}. We select events consistent with a signature of a single charged lepton (e{sup {+-}}/{mu}{sup {+-}}), missing transverse energy, and two jets. Jets corresponding to bottom quarks are identified with a secondary vertex tagging method, a jet probability tagging method, and a neural network filter. We use kinematic information inmore » an artificial neural network to improve discrimination between signal and background compared to previous analyses. The observed number of events and the neural network output distributions are consistent with the standard model background expectations, and we set 95% confidence level upper limits on the production cross section times branching fraction ranging from 1.2 to 1.1 pb or 7.5 to 102 times the standard model expectation for Higgs boson masses from 110 to 150 GeV/c{sup 2}, respectively.« less