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Stringent limits on top-quark compositeness from t t ̄ production at the Tevatron and the lhc stringent limits on top-quark compositeness ⋯ M. fabbrichesi, M. pinamonti, and A. tonero
(2014-04-11)
If the top quark is a composite state made out of some constituents, then its interaction with the gluon will be modified. We introduce the leading effective operators that contribute to the radius and anomalous magnetic ...
Limits on anomalous top-quark gauge couplings from Tevatron and LHC data
(Springer, 2014-12-13)
We review and update current limits on possible anomalous couplings of the top quark to gauge bosons. We consider data from top quark decay (as encoded in the W-boson helicity fractions) and single-top production (in the ...
Decay bwz within the context of the left-right mirror model
(Revista Mexicana de Física, 2009)
Stringent limits on top-quark compositeness from t(t)over-bar production at the Tevatron and the LHC
(Amer Physical Soc, 2014-04-11)
If the top quark is a composite state made out of some constituents, then its interaction with the gluon will be modified. We introduce the leading effective operators that contribute to the radius and anomalous magnetic ...
Production of semi-inclusive doubly heavy baryons via top-quark decays
(2018-11-01)
In the paper, we present a detailed discussion on the semi-inclusive production of doubly heavy baryons (Ξbc and Ξbb) through top-quark decay channel, t→ΞbQ′+Q′+W+, within the framework of nonrelativistic QCD. In our ...
O que tem o Brasil com o top quark?
(1995-03-10)
A dynamical mechanism to explain the top-bottom quark mass hierarchy
(World Scientific Publ Co Pte Ltd, 2005-12-30)
We discuss the mass splitting between the the top and bottom quarks in a technicolor scenario. The model proposed here contains a left-right electroweak gauge group. An extended technicolor group and mirror fermions are ...
Measurement of the top quark charge in pp collisions at s√=7s=7 TeV with the ATLAS detector
(Springer, 2013-11)
A measurement of the top quark electric charge is carried out in the ATLAS experiment at the Large Hadron Collider using 2.05 fb−1 of data at a centre-of-mass energy of 7 TeV. In units of the elementary electric charge, ...
Search for flavor changing neutral currents via quark-gluon couplings in single top quark production using 2.3 fb(-1) of p(p)over-bar collisions
(Elsevier B.V., 2010-09-27)
We present a search for flavor changing neutral currents via quark-gluon couplings in a sample of single top quark final states corresponding to 2.3 fb(-1) of integrated luminosity collected with the do detector at the ...
Novel signatures for vector-like quarks
(Springer, 2017-06)
We consider supersymmetric extensions of the standard model with a vector-like doublet (T B) of quarks with charge 2/3 and −1/3, respectively. Compared to non-supersymmetric models, there is a variety of new decay modes ...