Polarized single top quark production in e gamma collision and anomalous W tb couplings

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Sahin B., Sahin İ.

EUROPEAN PHYSICAL JOURNAL C, vol.54, no.3, pp.435-441, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 54 Issue: 3
  • Publication Date: 2008
  • Doi Number: 10.1140/epjc/s10052-008-0543-4
  • Journal Name: EUROPEAN PHYSICAL JOURNAL C
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.435-441
  • Ankara University Affiliated: Yes

Abstract

We investigate the potential of e gamma collisions to probe anomalous Wtb couplings via the polarized single top quark production process e(+)gamma -> t (b) over bar(upsilon) over bar (e). We find 95% confidence level limits on the anomalous coupling parameters F-2L and F-2R with an integrated luminosity of 500 fb(-1) and root s = 0.5, 1 and 1.5 TeV energies. The effects of top quark spin polarization on the anomalous W tb couplings are discussed. It is shown that polarization leads to a considerable improvement in the sensitivity limits.