Pair production of leptoquark scalars in hadron colliders

1990 ◽  
Vol 68 (7-8) ◽  
pp. 612-619 ◽  
Author(s):  
Marc de Montigny ◽  
Luc Marleau
Keyword(s):  
Pair Production ◽  
Gluon Fusion ◽  
Soft Gluon ◽  
Hadron Colliders ◽  
Scalar Leptoquarks

We estimate soft-gluon corrections generated by π2 terms in the production of pairs of scalar leptoquarks in hadron collisions. These particles appear naturally in a superstring inspred E6 model and can be produced through quark–antiquark annihilation and gluon fusion with or without Yukawa interactions.

scholarly journals Soft-gluon resummation for slepton-pair production at hadron colliders

2012 ◽  
Vol 2012 (5) ◽  
Author(s):  
Alessandro Broggio ◽  
Matthias Neubert ◽  
Leonardo Vernazza
Keyword(s):  
Pair Production ◽  
Soft Gluon ◽  
Hadron Colliders

scholarly journals Soft gluon resummation for squark and gluino pair-production at hadron colliders

2010 ◽  
Author(s):  
Anna Kulesza ◽  
Wim Beenakker ◽  
Silja Brensing ◽  
Michael Kramer ◽  
Eric Laenen ◽  
...  
Keyword(s):  
Pair Production ◽  
Soft Gluon ◽  
Hadron Colliders

K FACTOR FOR HIGGS BOSON PRODUCTION VIA GLUON FUSION PROCESS AT HADRON COLLIDERS

1992 ◽  
Vol 07 (07) ◽  
pp. 583-592
Author(s):  
HIDEKAZU TANAKA
Keyword(s):  
Higgs Boson ◽  
Gluon Fusion ◽  
Fusion Process ◽  
Boson Mass ◽  
Soft Gluon ◽  
Boson Production ◽  
Higgs Boson Mass ◽  
Hadron Colliders ◽  
Higgs Boson Production ◽  
K Factor

Soft gluon corrections for Higgs boson production at hadron colliders are calculated. It is found that the soft gluon contributions for the Higgs boson production via gluon fusion process is large and it cannot be neglected even at SSC energy. Some qualitative discussions for the QCD corrections to the Higgs boson production at hadron colliders and their background processes are presented for various Higgs boson mass cases.

scholarly journals Higgs-pair production via gluon fusion at hadron colliders: NLO QCD corrections

2020 ◽  
Vol 2020 (4) ◽  
Author(s):  
Julien Baglio ◽  
Francisco Campanario ◽  
Seraina Glaus ◽  
Margarete Mühlleitner ◽  
Jonathan Ronca ◽  
...  
Keyword(s):  
Pair Production ◽  
Gluon Fusion ◽  
Hadron Colliders

scholarly journals Charged Higgs pair production at the LHC as a probe of the top-seesaw assisted technicolor model

2016 ◽  
Vol 31 (20n21) ◽  
pp. 1650119
Author(s):  
Guo-Li Liu ◽  
Ping Zhou ◽  
Xiao-Fei Guo ◽  
Kun Wu ◽  
Ji Jiang
Keyword(s):  
Pair Production ◽  
Cross Sections ◽  
Higgs Mass ◽  
Production Cross ◽  
Gluon Fusion ◽  
Higgs Bosons ◽  
Hadron Colliders ◽  
Technicolor Model ◽  
Charged Higgs ◽  
Tc Model

The top-seesaw assisted technicolor (TC) model, which was proposed recently to accommodate the 126 GeV Higgs mass discovered by the Large Hadron Colliders (LHC), predicts light and heavy charged Higgs bosons in addition to the neutral Higgses. In this paper, we will study the pair productions of the charged Higgs, proceeding through gluon–gluon fusion and quark–antiquark annihilation, at the LHC in the frame of the top-seesaw assisted TC model. We find that in a large part of parameter space the production cross-sections of the light charged Higgs pair at the LHC can be quite large compared with the low standard model backgrounds, while it is impossible for the pair production of the heavy ones to be detected with the strong final mass suppression. Therefore, the light charged Higgs pair production may be served as a probe of this new TC model at the LHC.

scholarly journals Top-pair production at hadron colliders with next-to-next-to-leading logarithmic soft-gluon resummation

2012 ◽  
Vol 710 (4-5) ◽  
pp. 612-622 ◽  
Author(s):  
Matteo Cacciari ◽  
Michał Czakon ◽  
Michelangelo Mangano ◽  
Alexander Mitov ◽  
Paolo Nason
Keyword(s):  
Pair Production ◽  
Soft Gluon ◽  
Hadron Colliders ◽  
Top Pair Production

scholarly journals Search for pair production of third-generation scalar leptoquarks decaying into a top quark and a τ-lepton in pp collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
◽  
G. Aad ◽  
B. Abbott ◽  
D. C. Abbott ◽  
A. Abed Abud ◽  
...  
Keyword(s):  
Pair Production ◽  
Top Quark ◽  
Production Cross ◽  
Branching Fraction ◽  
Hadron Collider ◽  
Atlas Detector ◽  
Third Generation ◽  
Final State ◽  
Generation Scalar ◽  
Scalar Leptoquarks

Abstract A search for pair production of third-generation scalar leptoquarks decaying into a top quark and a τ-lepton is presented. The search is based on a dataset of pp collisions at $$ \sqrt{s} $$ s = 13 TeV recorded with the ATLAS detector during Run 2 of the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb−1. Events are selected if they have one light lepton (electron or muon) and at least one hadronically decaying τ -lepton, or at least two light leptons. In addition, two or more jets, at least one of which must be identified as containing b-hadrons, are required. Six final states, defined by the multiplicity and flavour of lepton candidates, are considered in the analysis. Each of them is split into multiple event categories to simultaneously search for the signal and constrain several leading backgrounds. The signal-rich event categories require at least one hadronically decaying τ-lepton candidate and exploit the presence of energetic final-state objects, which is characteristic of signal events. No significant excess above the Standard Model expectation is observed in any of the considered event categories, and 95% CL upper limits are set on the production cross section as a function of the leptoquark mass, for different assumptions about the branching fractions into tτ and bν. Scalar leptoquarks decaying exclusively into tτ are excluded up to masses of 1.43 TeV while, for a branching fraction of 50% into tτ, the lower mass limit is 1.22 TeV.

scholarly journals Soft gluon resummation effects in single slepton production at hadron colliders

2005 ◽  
Vol 72 (7) ◽  
Author(s):  
Li Lin Yang ◽  
Chong Sheng Li ◽  
Jian Jun Liu ◽  
Qiang Li
Keyword(s):  
Soft Gluon ◽  
Hadron Colliders
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