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Search for $W^\prime\to tb$ Resonances with Left- and Right-Handed Couplings to Fermions
Stockholm University, Faculty of Science, Department of Physics.
2011 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 699, no 3, 145-150 p.Article in journal (Refereed) Published
Abstract [en]

We present a search for the production of a heavy gauge boson, W, that decays to third-generation quarks, by D0 Collaboration in collisions at . We set 95% confidence level upper limits on the production cross section times branching fraction. For the first time, we set limits for arbitrary combinations of left- and right-handed couplings of the W boson to fermions. For couplings with the same strength as for the standard model W boson, we set the following limits, assuming that there are right-handed neutrinos νR for all three generations with M(W)>m(νR): M(W)>863 GeV for purely left-handed couplings, M(W)>885 GeV for purely right-handed couplings, and M(W)>916 GeV if both left- and right-handed couplings are present. The limit for right-handed couplings improves for M(W)<m(νR) to M(W)>890 GeV.

Place, publisher, year, edition, pages
2011. Vol. 699, no 3, 145-150 p.
Keyword [en]
Wprime, Resonances, Top quark, Bottom quark, Left–right couplings
National Category
Subatomic Physics
Research subject
URN: urn:nbn:se:su:diva-62989DOI: 10.1016/j.physletb.2011.03.066ISI: 000290778200003OAI: diva2:446296
Swedish Research Council
Publikationen har totalt 426 författare, V. Abazov et al.Available from: 2011-10-06 Created: 2011-10-06 Last updated: 2012-01-18Bibliographically approved

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Åsman, Barbro
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