Measurement of B(t→Wb)/B(t→Wq) at the Collider Detector at Fermilab

D. Acosta, J. Adelman, T. Affolder, T. Akimoto, M. G. Albrow, D. Ambrose, S. Amerio, D. Amidei, A. Anastassov, K. Anikeev, A. Annovi, J. Antos, M. Aoki, G. Apollinari, T. Arisawa, J. F. Arguin, A. Artikov, W. Ashmanskas, A. Attal, F. AzfarP. Azzi-Bacchetta, N. Bacchetta, H. Bachacou, W. Badgett, A. Barbaro-Galtieri, G. J. Barker, V. E. Barnes, B. A. Barnett, S. Baroiant, G. Bauer, F. Bedeschi, S. Behari, S. Belforte, G. Bellettini, J. Bellinger, A. Belloni, E. Ben-Haim, D. Benjamin, A. Beretvas, T. Berry, A. Bhatti, M. Binkley, D. Bisello, M. Bishai, R. E. Blair, C. Blocker, K. Bloom, B. Blumenfeld, A. Bocci, A. Bodek, G. Bolla, A. Bolshov, D. Bortoletto, J. Boudreau, S. Bourov, B. Brau, C. Bromberg, E. Brubaker, J. Budagov, H. S. Budd, K. Burkett, G. Busetto, P. Bussey, K. L. Byrum, S. Cabrera, M. Campanelli, M. Campbell, F. Canelli, A. Canepa, M. Casarsa, D. Carlsmith, R. Carosi, S. Carron, M. Cavalli-Sforza, A. Castro, P. Catastini, D. Cauz, A. Cerri, L. Cerrito, J. Chapman, Y. C. Chen, M. Chertok, G. Chiarelli, G. Chlachidze, F. Chlebana, I. Cho, K. Cho, D. Chokheli, J. P. Chou, S. Chuang, K. Chung, W. H. Chung, Y. S. Chung, M. Cijliak, C. I. Ciobanu, M. A. Ciocci, A. G. Clark, D. Clark, M. Coca

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Abstract

We present a measurement of the ratio of top-quark branching fractions R=B(t→Wb)/B(t→Wq), where q can be a b, s, or a d quark, using lepton-plus-jets and dilepton data sets with an integrated luminosity of ∼162pb-1 collected with the Collider Detector at Fermilab during Run II of the Tevatron. The measurement is derived from the relative numbers of tt̄ events with different multiplicity of identified secondary vertices. We set a lower limit of R>0.61 at 95% confidence level.

Original languageEnglish
Article number102002
JournalPhysical Review Letters
Volume95
Issue number10
DOIs
Publication statusPublished - 2005 Sep 2

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

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., Arisawa, T., Arguin, J. F., Artikov, A., Ashmanskas, W., Attal, A., ... Coca, M. (2005). Measurement of B(t→Wb)/B(t→Wq) at the Collider Detector at Fermilab. Physical Review Letters, 95(10), [102002]. https://doi.org/10.1103/PhysRevLett.95.102002