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Search for the production of narrow tb̄ resonances in 1.9fb-1 of pp̄ collisions at s=1.96TeV

  • T. Aaltonen
  • , J. Adelman
  • , T. Akimoto
  • , B. Álvarez González
  • , S. Amerio
  • , D. Amidei
  • , A. Anastassov
  • , A. Annovi
  • , J. Antos
  • , G. Apollinari
  • , A. Apresyan
  • , T. Arisawa
  • , A. Artikov
  • , W. Ashmanskas
  • , A. Attal
  • , A. Aurisano
  • , F. Azfar
  • , W. Badgett
  • , A. Barbaro-Galtieri
  • , V. E. Barnes
  • B. A. Barnett, P. Barria, P. Bartos, V. Bartsch, G. Bauer, P. H. Beauchemin, F. Bedeschi, D. Beecher, S. Behari, G. Bellettini, J. Bellinger, D. Benjamin, A. Beretvas, J. Beringer, A. Bhatti, M. Binkley, D. Bisello, I. Bizjak, R. E. Blair, C. Blocker, B. Blumenfeld, A. Bocci, A. Bodek, V. Boisvert, G. Bolla, D. Bortoletto, J. Boudreau, A. Boveia, B. Brau, A. Bridgeman, L. Brigliadori, C. Bromberg, E. Brubaker, J. Budagov, H. S. Budd, S. Budd, S. Burke, K. Burkett, G. Busetto, P. Bussey, A. Buzatu, K. L. Byrum, S. Cabrera, C. Calancha, M. Campanelli, M. Campbell, F. Canelli, A. Canepa, B. Carls, D. Carlsmith, R. Carosi, S. Carrillo, S. Carron, B. Casal, M. Casarsa, A. Castro, P. Catastini, D. Cauz, V. Cavaliere, M. Cavalli-Sforza, A. Cerri, L. Cerrito, S. H. Chang, Y. C. Chen, M. Chertok, G. Chiarelli, G. Chlachidze, F. Chlebana, K. Cho, D. Chokheli, J. P. Chou, G. Choudalakis, S. H. Chuang, K. Chung, W. H. Chung, Y. S. Chung, T. Chwalek, C. I. Ciobanu, M. A. Ciocci, A. Clark, D. 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Research output: Contribution to journalArticlepeer-review

53 Scopus citations

Abstract

We present new limits on resonant tb̄ production in pp̄ collisions at s=1.96TeV, using 1.9fb-1 of data recorded with the CDFII detector at the Fermilab Tevatron. We reconstruct a candidate tb̄ mass in events with a lepton, neutrino candidate, and two or three jets, and search for anomalous tb̄ production as modeled by W′→tb̄. We set a new limit on a right-handed W′ with standard model-like coupling, excluding any mass below 800GeV/c2 at 95% C.L. The cross section for any narrow, resonant tb̄ production between 750 and 950GeV/c2 is found to be less than 0.28pb at 95% C.L. We also present an exclusion of the W′ coupling strength versus W′ mass over the range 300-950GeV/c2.

Original languageEnglish
Article number041801
JournalPhysical Review Letters
Volume103
Issue number4
DOIs
StatePublished - 6 Aug 2009

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