Aaltonen, T;
Collaboration, CDF;
Alvarez Gonzalez, B;
Amerio, S;
Amidei, D;
Anastassov, A;
Annovi, A;
... Zucchelli, S; + view all
(2012)
Search for the standard model Higgs boson produced in association with a Z boson in 7.9 fb(-1) of p(p)over-bar collisions at root s=1.96 TeV using the CDF ll detector.
PHYSICS LETTERS B
, 715
(1-3)
98 - 104.
10.1016/j.physletb.2012.07.045.
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Abstract
We present a search for the standard model Higgs boson produced in association with a Z boson, using up to 7.9 fb−1 of integrated luminosity from p¯p collisions collected with the CDF II detector. We utilize several novel techniques, including multivariate lepton selection, multivariate trigger parametrization, and a multi-stage signal discriminant consisting of specialized functions trained to distinguish individual backgrounds. By increasing acceptance and enhancing signal discrimination, these techniques have significantly improved the sensitivity of the analysis above what was expected from a larger dataset alone. We observe no significant evidence for a signal, and we set limits on the ZH production cross section. For a Higgs boson with mass 115 GeV/c2, we expect (observe) a limit of 3.9 (4.8) times the standard model predicted value, at the 95% credibility level.
| Type: | Article |
|---|---|
| Title: | Search for the standard model Higgs boson produced in association with a Z boson in 7.9 fb(-1) of p(p)over-bar collisions at root s=1.96 TeV using the CDF ll detector |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.physletb.2012.07.045 |
| Publisher version: | http://dx.doi.org/10.1016/j.physletb.2012.07.045 |
| Language: | English |
| Additional information: | This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| Keywords: | CDF, Higgs boson searches, Multivariate techniques |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1370550 |
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