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Search for W' -> tb resonances with left- and right-handed couplings to fermions D0 Collaboration
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2011 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, 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 DO Collaboration in p (p) over bar) collisions at root s = 1.96 TeV. 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 nu(R) for all three generations with M(W') > m(nu(R)): 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(nu(R)) 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
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-154528DOI: 10.1016/j.physletb.2011.03.066ISI: 000290778200003OAI: oai:DiVA.org:uu-154528DiVA: diva2:421046
Available from: 2011-06-07 Created: 2011-06-07 Last updated: 2017-12-11Bibliographically approved

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