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1826210436691787776
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MIT
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| description |
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 7.5fb -1 collected by the CDF detector at the Tevatron. We select WH→νbb̄ 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 bb̄ pairs, σ(pp̄→W ±H) ×B(H→bb̄), relative to the rate predicted by the standard model. For the Higgs boson mass range of 100 to 150GeV/c2 we set observed (expected) upper limits from 1.34 (1.83) to 38.8 (23.4). For 115GeV/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 125GeV/c2 the upper limits are 2.65 (2.60) and 4.36 (3.69), respectively. © 2012 American Physical Society.
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| first_indexed |
2024-09-23T14:49:53Z
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Article
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| id |
mit-1721.1/133920
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| institution |
Massachusetts Institute of Technology
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| language |
English
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| last_indexed |
2024-09-23T14:49:53Z
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| publishDate |
2021
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| publisher |
American Physical Society (APS)
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dspace
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| spelling |
mit-1721.1/1339202022-04-01T17:58:55Z Search for the standard model Higgs boson produced in association with a W ± boson with 7.5 fb − 1 integrated luminosity at CDF 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 7.5fb -1 collected by the CDF detector at the Tevatron. We select WH→νbb̄ 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 bb̄ pairs, σ(pp̄→W ±H) ×B(H→bb̄), relative to the rate predicted by the standard model. For the Higgs boson mass range of 100 to 150GeV/c2 we set observed (expected) upper limits from 1.34 (1.83) to 38.8 (23.4). For 115GeV/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 125GeV/c2 the upper limits are 2.65 (2.60) and 4.36 (3.69), respectively. © 2012 American Physical Society. 2021-10-27T19:57:13Z 2021-10-27T19:57:13Z 2012 2019-05-02T14:13:31Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133920 Aaltonen, T., et al. "Search for the Standard Model Higgs Boson Produced in Association with a W-+/- Boson with 7.5 Fb(-1) Integrated Luminosity at Cdf." Physical Review D 86 3 (2012). en 10.1103/PhysRevD.86.032011 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) APS
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| spellingShingle |
Search for the standard model Higgs boson produced in association with a W ± boson with 7.5 fb − 1 integrated luminosity at CDF
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| title |
Search for the standard model Higgs boson produced in association with a W ± boson with 7.5 fb − 1 integrated luminosity at CDF
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| title_full |
Search for the standard model Higgs boson produced in association with a W ± boson with 7.5 fb − 1 integrated luminosity at CDF
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| title_fullStr |
Search for the standard model Higgs boson produced in association with a W ± boson with 7.5 fb − 1 integrated luminosity at CDF
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| title_full_unstemmed |
Search for the standard model Higgs boson produced in association with a W ± boson with 7.5 fb − 1 integrated luminosity at CDF
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| title_short |
Search for the standard model Higgs boson produced in association with a W ± boson with 7.5 fb − 1 integrated luminosity at CDF
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| title_sort |
search for the standard model higgs boson produced in association with a w boson with 7 5 fb 1 integrated luminosity at cdf
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| url |
https://hdl.handle.net/1721.1/133920
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