E-viri
Recenzirano
-
Search for charged Higgs bosons in decays of top quarks in pp collisions at square root s = 1.96 TeVAlvarez González, B; Antos, J; Aurisano, A; Barbaro-Galtieri, A; Bhatti, A; Bizjak, I; Blumenfeld, B; Burkett, K; Buzatu, A; Canepa, A; Carls, B; Carlsmith, D; Carron, S; Cavaliere, V; Chang, S H; Chiarelli, G; Chou, J P; Chwalek, T; Convery, M E; Crescioli, F; Cully, J C; Deninno, M; di Giovanni, G P; Dube, S; Elagin, A; Errede, D; Fedorko, W T; Feild, R G; Forrest, R; Frank, M J; Gallinaro, M; Gibson, K; Giurgiu, G; Gold, M; Gomez, G; Gorelov, I; Grundler, U; Guimaraes da Costa, J; Hahn, K; Han, J Y; Hussein, M; Jeon, E J; Karchin, P E; Kim, H W; Kim, M J; Kruse, M; Lecompte, T; Luci, C; Lueck, J; Lujan, P; Lyons, L; Lysak, R; Maksimovic, P; Malde, S; Mehta, A; Mehtala, P; Miller, R; Mülmenstädt, J; Nachtman, J; Orava, R; Osterberg, K; Paramonov, A A; Parks, B; Paulini, M; Pianori, E; Pursley, J; Richter, S; Rimondi, F; Ristori, L; Rogers, E; Rossi, M; Sarkar, S; Schmidt, M A; Schmidt, M P; Shepard, P F; Shimojima, M; Shreyber, I; Sinervo, P; Slaunwhite, J; Snihur, R; Suzuki, T; Taffard, A; Tanaka, R; Thom, J; Tipton, P; Torre, S; Tourneur, S; Ukegawa, F; Vataga, E; Vila, I; Wagner, P; Whiteson, D; Wicklund, A B; Wicklund, E; Wolfe, C; Wu, X; Yamamoto, K; Yao, W M; Yu, I; Yu, S S
Physical review letters, 2009-Sep-04, 20090904, Letnik: 103, Številka: 10Journal Article
We report on the first direct search for charged Higgs bosons decaying into cs in tt events produced by pp collisions at square root s = 1.96 TeV. The search uses a data sample corresponding to an integrated luminosity of 2.2 fb(-1) collected by the CDF II detector at Fermilab and looks for a resonance in the invariant mass distribution of two jets in the lepton + jets sample of tt candidates. We observe no evidence of charged Higgs bosons in top quark decays. Hence, 95% upper limits on the top quark decay branching ratio are placed at B(t --> H(+)b)< 0.1 to 0.3 for charged Higgs boson masses of 60 to 150 GeV/c(2) assuming B(H(+) --> cs)=1.0. The upper limits on B(t --> H(+)b) are also used as model-independent limits on the decay branching ratio of top quarks to generic scalar charged bosons beyond the standard model.
