Effect of top quark spin on the unparticle couplings in γγ\to t\bar{t}

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dc.creatorSahin, I.
dc.date2008-02-20
dc.date2009-02-16
dc.date.accessioned2026-07-07T12:55:03Z
dc.date.available2026-07-07T12:55:03Z
dc.descriptionWe investigate the potential of $γγ$ collisions to probe scalar unparticle couplings via top-antitop quark pair production. We find 95% confidence level limits on the unparticle couplings with an integrated luminosity of $500 fb^{-1}$ and $\sqrt{s}=1$ TeV energy. We investigate the effect of top quark spin polarization on the unparticle couplings. It is shown that spin polarization of the top quark leads to a significant improvement in the sensitivity limits.
dc.description6 figures and 4 tables, limits for d_U=1.7 and 1.9 have been added, published version
dc.identifierhttps://arxiv.org/abs/0802.2818
dc.identifierhttp://arxiv.org/abs/0802.2818
dc.identifierEur.Phys.J.C60:431-439,2009
dc.identifierdoi:10.1140/epjc/s10052-009-0896-3
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/224143
dc.subjectHigh Energy Physics - Phenomenology
dc.titleEffect of top quark spin on the unparticle couplings in γγ\to t\bar{t}
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