Search for the top quark decaying to a charged Higgs boson in [ital [bar p]p] collisions at [radical][ital s] =1. 8 TeV

We present the results of a search in [ital [bar p]] [ital p] collisions at [radical][ital s] =1.8 TeV for the top quark decaying to a charged Higgs bosson ([ital H][sup [plus minus]]). We search for dilepton final states from the decay chain [ital t] [ital [bar t]][r arrow][ital HH] (or [ital HW],...

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Veröffentlicht in:	Physical review letters 1994-11, Vol.73:20
Hauptverfasser:	Abe, F., Albrow, M.G., Amidei, D., Antos, J., Anway-Wiese, C., Apollinari, G., Areti, H., Atac, M., Auchincloss, P., Azfar, F., Azzi, P., Bacchetta, N., Badgett, W., Bailey, M.W., Bao, J., de Barbaro, P., Barbaro-Galtieri, A., Barnes, V.E., Barnett, B.A., Bartalini, P., Bauer, G., Baumann, T., Bedeschi, F., Behrends, S., Belforte, S., Bellettini, G., Bellinger, J., Benjamin, D., Benlloch, J., Bensinger, J., Benton, D., Beretvas, A., Berge, J.P., Bertolucci, S., Bhatti, A., Biery, K., Binkley, M., Bird, F., Bisello, D., Blair, R.E., Blocker, C., Bodek, A., Bolognesi, V., Bortoletto, D., Boswell, C., Boulos, T., Brandenburg, G., Buckley-Geer, E., Budd, H.S., Burkett, K., Busetto, G., Byon-Wagner, A., Byrum, K.L., Cammerata, J., Campagnari, C., Campbell, M., Caner, A., Carithers, W., Carlsmith, D., Castro, A., Cen, Y., Cervelli, F., Chapman, J., Cheng, M., Chiarelli, G., Chikamatsu, T., Cihangir, S., Clark, A.G., Cobal, M., Contreras, M., Conway, J., Cooper, J., Cordelli, M., Crane, D., C
Format:	Artikel
Sprache:	eng
Schlagworte:	662340 > Hadron Interactions-- (1992-) BARYON-BARYON INTERACTIONS BRANCHING RATIO CHARGED PARTICLES DECAY ELEMENTARY PARTICLES FERMIONS HADRON-HADRON INTERACTIONS HIGGS BOSONS INTERACTIONS NUCLEON-ANTINUCLEON INTERACTIONS PARTICLE DECAY PARTICLE IDENTIFICATION PARTICLE INTERACTIONS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS POSTULATED PARTICLES 662440 > Properties of Other Particles Including Hypothetical Particles-- (1992-) PROTON-ANTIPROTON INTERACTIONS QUARKS TOP PARTICLES
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Zusammenfassung:	We present the results of a search in [ital [bar p]] [ital p] collisions at [radical][ital s] =1.8 TeV for the top quark decaying to a charged Higgs bosson ([ital H][sup [plus minus]]). We search for dilepton final states from the decay chain [ital t] [ital [bar t]][r arrow][ital HH] (or [ital HW], or [ital WW])+[ital b] [ital [bar b]][r arrow][ital ll]+[ital X]. In a sample of 19.3 pb[sup [minus]1] collected during 1992--93 with the Collider Detector at Fermilab, we observe 2 events with a background estimation of 3.0[plus minus]1.0 events. Limits at 95% C.L. in the (M[sub top],M[sub [ital H][sup [plus minus]]]) plane are presented. For the case [ital M][sub top][lt][ital M][sub [ital W]]+[ital M][sub [ital b]], we exclude at 95% C.L. the entire ([ital M][sub top],[ital M][sub H[plus minus]]) plane for the branching ratio [ital B]([ital H][r arrow][tau][nu]) larger than 75%. We also interpret the results in terms of the parameter tan[beta] of two-Higgs-doublet models.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.73.2667