@misc{10481/30558,
year = {2012},
url = {http://hdl.handle.net/10481/30558},
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¯→bb¯W+W−W+W−→l±νbb¯qq¯qq¯qq¯. 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.},
publisher = {American Physical Society},
keywords = {Top quark},
keywords = {Atlas detector},
keywords = {Hadronic colliders},
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. and Aguilar Saavedra, Juan Antonio and Atlas Collaboration},
}