Final charged-lepton angular distribution and possible anomalous top-quark couplings in pp→tt¯X→ℓ+X′
Autor: | Zenrō Hioki, Kazumasa Ohkuma |
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Jazyk: | angličtina |
Rok vydání: | 2014 |
Předmět: | |
Zdroj: | Physics Letters B, Vol 736, Iss C, Pp 1-5 (2014) |
Druh dokumentu: | article |
ISSN: | 0370-2693 1873-2445 |
DOI: | 10.1016/j.physletb.2014.07.001 |
Popis: | Possible anomalous (or nonstandard) top-quark interactions with the gluon and those with the W boson induced by SU(3)×SU(2)×U(1) gauge-invariant dimension-6 effective operators are studied in pp→tt¯X→ℓ+X′ (ℓ=e or μ) at the Large Hadron Collider (LHC). The final charged-lepton (ℓ+) angular distribution is first computed for nonvanishing nonstandard top-gluon and top-W couplings with a cut on its transverse momentum. The optimal-observable procedure is then applied to this distribution in order to estimate the expected statistical uncertainties in measurements of those couplings that contribute to this process in the leading order. |
Databáze: | Directory of Open Access Journals |
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