We present a search for t (t) over bar events with a tau lepton in the final state. The data sample corresponds to an integrated luminosity of 194 pb(-1) collected with the CDF Pi detector from pp collisions at a center of mass energy of 1.96 TeV. We observe two events with an expected signal of 1.0 +/- 0.2 events and a background of 1.3 +/- 0.3 events. We determine a 95% confidence level upper limit on r(tau), the ratio of the measured rate of t -> tau vq to the expectation, of 5.2. (c) 2006 Elsevier B.V. All rights reserved.

A search for t -> tau nu q in t(t)over-bar production / Abulencia, A., Acosta, D., Adelman, J., Affolder, T., Akimoto, T., Albrow, M.g., Ambrose, D., Amerio, S., Amidei, D., Anastassov, A., Anikeev, K., Annovi, A., Antos, J., Aoki, M., Apollinari, G., Arguin, J.f., Arisawa, T., Artikov, A., Ashmanskas, W., Attal, A., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 639:(2006), pp. 172-178. [10.1016/j.physletb.2006.06.030]

A search for t -> tau nu q in t(t)over-bar production

DE CECCO, Sandro;DIONISI, Carlo;GIAGU, Stefano;MARGAROLI, Fabrizio;LOVERRE, Pier Ferruccio;MESSINA, Andrea;
2006

Abstract

We present a search for t (t) over bar events with a tau lepton in the final state. The data sample corresponds to an integrated luminosity of 194 pb(-1) collected with the CDF Pi detector from pp collisions at a center of mass energy of 1.96 TeV. We observe two events with an expected signal of 1.0 +/- 0.2 events and a background of 1.3 +/- 0.3 events. We determine a 95% confidence level upper limit on r(tau), the ratio of the measured rate of t -> tau vq to the expectation, of 5.2. (c) 2006 Elsevier B.V. All rights reserved.
2006
01 Pubblicazione su rivista::01a Articolo in rivista
A search for t -> tau nu q in t(t)over-bar production / Abulencia, A., Acosta, D., Adelman, J., Affolder, T., Akimoto, T., Albrow, M.g., Ambrose, D., Amerio, S., Amidei, D., Anastassov, A., Anikeev, K., Annovi, A., Antos, J., Aoki, M., Apollinari, G., Arguin, J.f., Arisawa, T., Artikov, A., Ashmanskas, W., Attal, A., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 639:(2006), pp. 172-178. [10.1016/j.physletb.2006.06.030]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/359264
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