A search is presented for heavy-quark pair production (QQ?? ) under the decay hypothesis QQ?? ???W+qW-q?? with q=d, s, b for up-type Q or q=u, c for down-type Q. The search is performed with 1.04??????fb-1 of integrated luminosity from pp collisions at ???s=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
Search for pair-produced heavy quarks decaying to Wq in the two-lepton channel at ???(s)=7TeV with the ATLAS detector / Aad, G., Aloisio, A., Alviggi, M., Canale, V., Cevenini, F., Chiefari, G., DELLA VOLPE, D., Merola, L., Patricelli, S., Conventi, F., DELLA PIETRA, M., Giordano, R., Musto, E., Rossi, E., SANCHEZ PINEDA, A.R., Carlino, G., de Asmundis, R., Di Donato, C., Doria, A., Iengo, P., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 86:(2012), pp. 1-24. [10.1103/PhysRevD.86.012007]
Search for pair-produced heavy quarks decaying to Wq in the two-lepton channel at ???(s)=7TeV with the ATLAS detector
ALOISIO, ALBERTO;ALVIGGI, MARIAGRAZIA;CANALE, VINCENZO;CHIEFARI, GIOVANNI;DELLA VOLPE, DOMENICO;MEROLA, LEONARDO;PATRICELLI, SERGIO;DELLA PIETRA, MASSIMO;GIORDANO, RAFFAELE;MUSTO, ELISA;Rossi, Elvira;SANCHEZ PINEDA, ARTURO RODOLFO;
2012
Abstract
A search is presented for heavy-quark pair production (QQ?? ) under the decay hypothesis QQ?? ???W+qW-q?? with q=d, s, b for up-type Q or q=u, c for down-type Q. The search is performed with 1.04??????fb-1 of integrated luminosity from pp collisions at ???s=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 levelI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
