scholarly journals Contribution of third generation quarks to two-loop helicity amplitudes for W boson pair production in gluon fusion

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Christian Brønnum-Hansen ◽  
Chen-Yu Wang
Keyword(s):  
Phase Space ◽  
Differential Equations ◽  
Pair Production ◽  
W Boson ◽  
Gluon Fusion ◽  
Third Generation ◽  
Boson Pair ◽  
Boson Pair Production ◽  
Helicity Amplitudes ◽  
Loop Amplitude

Abstract We compute the contribution of third generation quarks (t, b) to the two-loop amplitude for on-shell W boson pair production in gluon fusion gg → WW. We present plots for the amplitude across partonic phase space as well as reference values for two kinematic points. The master integrals are efficiently evaluated by numerically solving a system of ordinary differential equations.

scholarly journals Top quark contribution to two-loop helicity amplitudes for Z boson pair production in gluon fusion

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Christian Brønnum-Hansen ◽  
Chen-Yu Wang
Keyword(s):  
Pair Production ◽  
Top Quark ◽  
Gluon Fusion ◽  
Top Quark Mass ◽  
Boson Pair ◽  
Boson Pair Production ◽  
Quark Contribution ◽  
Phase Space Point ◽  
Helicity Amplitudes ◽  
Exact Dependence

Abstract We compute the top quark contribution to the two-loop amplitude for on-shell Z boson pair production in gluon fusion, gg → ZZ. Exact dependence on the top quark mass is retained. For each phase space point the integral reduction is performed numerically and the master integrals are evaluated using the auxiliary mass flow method, allowing fast computation of the amplitude with very high precision.

scholarly journals Spin on same-sign W -boson pair production

2019 ◽  
Vol 100 (1) ◽  
Author(s):  
Sabrina Cotogno ◽  
Tomas Kasemets ◽  
Miroslav Myska
Keyword(s):  
Pair Production ◽  
W Boson ◽  
Boson Pair ◽  
Boson Pair Production

Tests of real W-boson pair production

1980 ◽  
Vol 175 (2) ◽  
pp. 234-250 ◽  
Author(s):  
P. Mery ◽  
M. Perrottet
Keyword(s):  
Pair Production ◽  
W Boson ◽  
Boson Pair ◽  
Boson Pair Production

scholarly journals W+W− boson pair production in proton-proton collisions at s=13  TeV

2020 ◽  
Vol 102 (9) ◽  
Author(s):  
A. M. Sirunyan ◽  
A. Tumasyan ◽  
W. Adam ◽  
F. Ambrogi ◽  
T. Bergauer ◽  
...  
Keyword(s):  
Pair Production ◽  
W Boson ◽  
Boson Pair ◽  
Proton Proton ◽  
Proton Collisions ◽  
Boson Pair Production ◽  
Proton Proton Collisions

scholarly journals Electroweak corrections to W-boson pair production at the LHC

2012 ◽  
Vol 2012 (11) ◽  
Author(s):  
Anastasiya Bierweiler ◽  
Tobias Kasprzik ◽  
Johann H. Kühn ◽  
Sandro Uccirati
Keyword(s):  
Pair Production ◽  
W Boson ◽  
Boson Pair ◽  
Boson Pair Production ◽  
Electroweak Corrections

scholarly journals Anomalous couplings in Higgs-boson pair production at approximate NNLO QCD

2021 ◽  
Vol 2021 (9) ◽  
Author(s):  
Daniel de Florian ◽  
Ignacio Fabre ◽  
Gudrun Heinrich ◽  
Javier Mazzitelli ◽  
Ludovic Scyboz
Keyword(s):  
Higgs Boson ◽  
Pair Production ◽  
Top Quark ◽  
Gluon Fusion ◽  
Effective Field ◽  
Boson Pair ◽  
Anomalous Couplings ◽  
Boson Pair Production ◽  
Coupling Parameters ◽  
The Impact

Abstract We combine NLO predictions with full top-quark mass dependence with approximate NNLO predictions for Higgs-boson pair production in gluon fusion, including the possibility to vary coupling parameters within a non-linear Effective Field Theory framework containing five anomalous couplings for this process. We study the impact of the anomalous couplings on various observables, and present Higgs-pair invariant-mass distributions at seven benchmark points characterising different mhh shape types. We also provide numerical coefficients for the approximate NNLO cross section as a function of the anomalous couplings at $$ \sqrt{s} $$ s = 14 TeV.

scholarly journals Measurement of the cross section of W-boson pair production at LEP

2004 ◽  
Vol 600 (1-2) ◽  
pp. 22-40 ◽  
Author(s):  
P. Achard ◽  
O. Adriani ◽  
M. Aguilar-Benitez ◽  
J. Alcaraz ◽  
G. Alemanni ◽  
...  
Keyword(s):  
Pair Production ◽  
Cross Section ◽  
W Boson ◽  
Boson Pair ◽  
Boson Pair Production ◽  
The Cross
Sign in / Sign up

Export Citation Format

Share Document