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fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Smart, Ben Harry (2015)
Publisher: The University of Edinburgh
Languages: English
Types: Article
Subjects: Partícules (Física nuclear), Research Groups and Centres\Physics\Low Temperature Physics, ATLAS, LHC, Particle Physics - Experiment, Faculty of Science\Physics, Standard Model Higgs boson; ATLAS; LHC, CERN, Standard Model, /dk/atira/pure/subjectarea/asjc/3100/3106, QC, 530, Settore FIS/04 - Fisica Nucleare e Subnucleare, High Energy Physics - Experiment, ATLAS; LHC; Standard Model Higgs boson, Standard model Higgs boson, Física nuclear, Higgs boson, Nuclear and High Energy Physics
ddc: ddc:530

Classified by OpenAIRE into

arxiv: High Energy Physics::Experiment, High Energy Physics::Phenomenology
This Letter presents the results of a direct search with the ATLAS detector at the LHC for a Standard Model Higgs boson of mass $110 \le m_H \le 130$ GeV produced in association with a W or Z boson and decaying to $b\bar{b}$. Three decay channels are considered: $ZH \to l^+ l^- b\bar{b}, WH \to l\nu b\bar{b}$, and $ZH \to \nu\bar{\nu}b\bar{b}$, where $l$ corresponds to an electron or a muon. No evidence for Higgs boson production is observed in a dataset of 7 TeV pp collisions corresponding to 4.7/fb of integrated luminosity collected by ATLAS in 2011. Exclusion limits on Higgs boson production, at the 95% confidence level, of 2.5 to 5.5 times the Standard Model cross section are obtained in the mass range 110 - 130 GeV. The expected exclusion limits range between 2.5 and 4.9 for the same mass interval. This Letter presents the results of a direct search with the ATLAS detector at the LHC for a Standard Model Higgs boson of mass 110 < m(H) < 130 GeV produced in association with a W or Z boson and decaying to bb. Three decay channels are considered: ZH->llbb, WH->lvbb, and ZH->vvbb, where l corresponds to an electron or a muon. No evidence for Higgs boson production is observed in a dataset of 7 TeV pp collisions corresponding to 4.7/fb of integrated luminosity collected by ATLAS in 2011. Exclusion limits on Higgs boson production, at the 95% confidence level, of 2.5 to 5.5 times the Standard Model cross section are obtained in the mass range 110 - 130 GeV. The expected exclusion limits range between 2.5 and 4.9 for the same mass interval. This Letter presents the results of a direct search with the ATLAS detector at the LHC for a Standard Model Higgs boson of mass 110⩽mH⩽130 GeV produced in association with a W or Z boson and decaying to bb¯ . Three decay channels are considered: ZH→ℓ+ℓ−bb¯ , WH→ℓνbb¯ and ZH→νν¯bb¯ , where ℓ corresponds to an electron or a muon. No evidence for Higgs boson production is observed in a dataset of 7 TeV pp collisions corresponding to 4.7 fb−1 of integrated luminosity collected by ATLAS in 2011. Exclusion limits on Higgs boson production, at the 95% confidence level, of 2.5 to 5.5 times the Standard Model cross section are obtained in the mass range 110–130 GeV . The expected exclusion limits range between 2.5 and 4.9 for the same mass interval.
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