Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/126313
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Type: | Journal article |
Title: | Search for down-type fourth generation quarks with the ATLAS detector in events with one lepton and hadronically decaying W bosons |
Author: | Aad, G. others, |
Citation: | Physical Review Letters, 2012; 109(3):032001-1-032001-19 |
Publisher: | American Physical Society |
Issue Date: | 2012 |
ISSN: | 0031-9007 1079-7114 |
Statement of Responsibility: | G. Aad, B. Abbott ... Martin White ... Lawrence Lee-Jr ... Paul Jackson Andreas Petridis, |
Abstract: | This Letter presents a search for pair production of heavy down-type quarks decaying via b′→Wt in the lepton+jets channel, as b′¯b′→W−tW+¯t→b¯bW+W−W+W−→l±νb¯bq¯qq¯qq¯q. In addition to requiring exactly one lepton, large missing transverse momentum, and at least six jets, the invariant mass of nearby jet pairs is used to identify high transverse momentum W bosons. In data corresponding to an integrated luminosity of 1.04 fb−1 from pp collisions at √s=7 TeV recorded with the ATLAS detector, a heavy down-type quark with mass less than 480 GeV can be excluded at the 95% confidence level. |
Keywords: | ATLAS Collaboration |
Rights: | © 2012 CERN, for the ATLAS Collaboration. This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. |
DOI: | 10.1103/PhysRevLett.109.032001 |
Published version: | http://dx.doi.org/10.1103/physrevlett.109.032001 |
Appears in Collections: | Aurora harvest 4 Physics publications |
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hdl_126313.pdf | Published version | 453.62 kB | Adobe PDF | View/Open |
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