scholarly journals Probing anomalous off-shell electroweak dipole moment of the top quark in single top quark production associated with Z or W bosons

2019 ◽  
Vol 222 ◽  
pp. 04009
Author(s):  
Edward Boos ◽  
Vyacheslav Bunichev ◽  
Lev Dudko ◽  
Georgii Vorotnikov
Keyword(s):  
Dipole Moment ◽  
Top Quark ◽  
Covariant Derivative ◽  
W Boson ◽  
Z Bosons ◽  
W Bosons ◽  
Single Top ◽  
Top Quark Production ◽  
Quark Production

An extension of the previous studies of anomalous Wtb interaction with offshell W boson was considered in associated single top quark production with W or Z bosons. More general variant with covariant derivative DµW−µ b−(fLWPL + fRWPR)t for the same processes is considered in this paper.

scholarly journals Soft-gluon corrections in top-quark production

2018 ◽  
Vol 33 (25) ◽  
pp. 1830021 ◽  
Author(s):  
Nikolaos Kidonakis
Keyword(s):  
Cross Sections ◽  
Top Quark ◽  
Z Bosons ◽  
New Physics ◽  
Higgs Bosons ◽  
Soft Gluon ◽  
Total Cross Sections ◽  
Single Top ◽  
Top Quark Production ◽  
Quark Production

I review calculations of soft-gluon corrections for top-quark production in hadron collisions. I describe theoretical formalisms for their resummation and for finite-order expansions. I show that soft-gluon corrections are dominant for a large number of top-quark processes. I discuss top–antitop pair production as well as single-top production, including total cross sections and differential distributions, and compare with data from the LHC and the Tevatron. I also discuss top-quark production in association with charged Higgs bosons, Z bosons and other particles in models of new physics.

scholarly journals Evidence for Top Quark Production in pp Collisions at vs = 1.8 TeV

1995 ◽  
Vol 48 (2) ◽  
pp. 207
Author(s):  
Paul L Tipton for the CDF Collaboration
Keyword(s):  
Cross Section ◽  
Top Quark ◽  
Quark Mass ◽  
W Boson ◽  
Production Cross ◽  
W Bosons ◽  
Top Quark Mass ◽  
Pp Collisions ◽  
Top Quark Production ◽  
Quark Production

We summarise a search for the top quark with the Collider Detector at Fermilab (CDF) in a sample of pp collisions at Vs = 1� 8 Te V with an integrated luminosity of 19�3 pb ~ 1. We find 12 events consistent with either two W bosons, or a W boson and at least one b jet. Both of these are signatures for tt events. The probability that the measured yield is consistent with the background is 0�26%. Though the statistics are too limited to establish firmly the existence of the top quark, a natural interpretation of the excess is that it is due to tt production. Under this assumption, constrained fits to individual events yield a top quark mass of 174 � lO:::g GeV / c2? The tt production cross section is measured to be 13.9:::~:~ pb.

scholarly journals Total and Differential Cross Sections for Higgs and Top-Quark Production

Universe ◽  
2018 ◽  
Vol 4 (11) ◽  
pp. 121 ◽  
Author(s):  
Nikolaos Kidonakis
Keyword(s):  
Higgs Boson ◽  
Cross Sections ◽  
Top Quark ◽  
W Boson ◽  
Theoretical Calculations ◽  
Total Cross Sections ◽  
Single Top ◽  
Top Quark Production ◽  
Quark Production ◽  
Rapidity Distributions

I present theoretical calculations for Higgs-boson and top-quark production, including high-order soft-gluon corrections. I discuss charged-Higgs production in association with a top quark or a W boson, as well as single-top and top-antitop production. Total cross sections as well as transverse-momentum and rapidity distributions of the top quark or the Higgs boson are presented for various LHC energies.

scholarly journals Search for FCNC single top-quark production at s=7 TeV with the ATLAS detector

2012 ◽  
Vol 712 (4-5) ◽  
pp. 351-369 ◽  
Author(s):  
G. Aad ◽  
B. Abbott ◽  
J. Abdallah ◽  
A.A. Abdelalim ◽  
A. Abdesselam ◽  
...  
Keyword(s):  
Top Quark ◽  
Atlas Detector ◽  
Single Top ◽  
Top Quark Production ◽  
Quark Production

Anomalous single top quark production at the LHC

2010 ◽  
Vol 82 (3) ◽  
pp. 035102
Author(s):  
M Mohammadi Najafabadi ◽  
G Pooya
Keyword(s):  
Top Quark ◽  
Single Top ◽  
Top Quark Production ◽  
Quark Production
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