IFLP 13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Search for pair-produced heavy quarks decaying to Wq in the two-lepton channel at 7 TeV with the ATLAS detector
Autor/es:
ATLAS COLLABORATION, G. AAD, M.T. DOVA ET AL
Revista:
PHYSICAL REVIEW D
Editorial:
AMER PHYSICAL SOC
Referencias:
Lugar: New York; Año: 2012 vol. 86 p. 12007 - 12037
ISSN:
1550-7998
Resumen:
A search is presented for heavy-quark pair production (Q Q) under the decay hypothesis WþqW q with qm d, s, b for up-type Q or q ¼ u, c for down-type Q. The search is performed with 1.04 fb1 of integrated luminosity from pp collisions at 7 TeV collected by the ATLAS detector at the CERN LHC. Dilepton final states are selected, requiring large missing transverse momentum and at least two jets. Mass reconstruction of heavy-quark candidates is performed by assuming that the W boson decay products are nearly collinear. The data are in agreement with standard model expectations; a heavy quark with mass less than 350 GeV is excluded at 95% confidence level.
