2024-03-29T11:14:34Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/232592018-06-28T06:32:06Zcom_10261_61com_10261_4com_10261_37col_10261_314col_10261_290
Aaltonen, T.
Cabrera, Susana
Cuenca Almenar, Cristóbal
Álvarez González, B.
Casal, Bruno
Cuevas, Javier
Gómez, G.
Rodrigo, Teresa
Ruiz Jimeno, Alberto
Scodellaro, Luca
Vila, Iván
Vilar, Rocío
2010-04-19T10:28:22Z
2010-04-19T10:28:22Z
2010-03-05
Physical Review Letters 104(9): 091801 (2010)
0031-9007
http://hdl.handle.net/10261/23259
10.1103/PhysRevLett.104.091801
We report the most restrictive direct limits on masses of fourth- generation down- type quarks b0, and quarklike composite fermions (B or T5= 3), decaying promptly to tW -/+. We search for a significant excess of events with two same- charge leptons (e, mu), several hadronic jets, and missing transverse energy. An analysis of data from pp collisions with an integrated luminosity of 2: 7 fb = 1 collected with the CDF II detector at Fermilab yields no evidence for such a signal, setting mass limits mb0, mB > 338 GeV= c2 and mT5= 3 > 365 GeV= c2 at 95% confidence level.
eng
openAccess
Search for New Bottomlike Quark Pair Decays Q(Q)over-bar -> (tW +/-)((t)over-barW +/- in Same-Charge Dileption Events
artículo