Implications of the CDF t(t)over-bar forward-backward asymmetry for boosted top physics

Cited 36 time in webofscience Cited 0 time in scopus
  • Hit : 303
  • Download : 59
New physics at a high scale A can affect top-related observables at O(1/Lambda(2)) via the interference of effective four quark operators with the SM amplitude. The ((u) over bar gamma(mu)gamma(5)T(a)u)((t) over bar gamma(mu)gamma(5)T(a)t) operator modifies the large M-(u) over bar forward-backward asymmetry, and can account for the recent CDF measurement. The ((u) over bar gamma(mu)T(a)u)((t) over bar gamma(mu)T(a)t) operator modifies the differential cross section, but cannot enhance the cross section of ultra-massive boosted jets by more than 60%. The hint for a larger enhancement from a recent CDF measurement may not persist future experimental improvements, or may be a QCD effect that is not accounted for by leading order and matched Monte Carlo tools or naive factorization. If it comes from new physics, it may stem from new light states or an O(1/Lambda(4)) new physics effect. (C) 2011 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2011-08
Language
English
Article Type
Article
Citation

PHYSICS LETTERS B, v.702, no.5, pp.364 - 369

ISSN
0370-2693
DOI
10.1016/j.physletb.2011.07.020
URI
http://hdl.handle.net/10203/99217
Appears in Collection
PH-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 36 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0