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Search for W´->tb resonances with left- and right-handed couplings to fermions
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SYSNO ASEP 0367678 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Search for W´->tb resonances with left- and right-handed couplings to fermions Author(s) Abazov, V. M. (RU)
Abbott, B. (US)
Acharya, B.S. (IN)
Kupčo, Alexander (FZU-D) RID, ORCID
Lokajíček, Miloš (FZU-D) RID, ORCIDNumber of authors 426 Source Title Physics Letters. B. - : Elsevier - ISSN 0370-2693
Roč. 699, č. 3 (2011), s. 145-150Number of pages 7 s. Language eng - English Country NL - Netherlands Keywords resonances ; top quark ; bottom quark ; left-right couplings Subject RIV BF - Elementary Particles and High Energy Physics R&D Projects LA08047 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10100502 - FZU-D (2005-2011) UT WOS 000290778200003 DOI 10.1016/j.physletb.2011.03.066 Annotation We present a search for the production of a heavy gauge boson, W′, that decays to third-generation quarks, by D0 Collaboration in View the MathML source collisions at View the MathML source. 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′)890 GeV. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2013
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