scholarly journals Top-quark initiated processes at high-energy hadron colliders

2015 ◽  
Vol 2015 (4) ◽  
Author(s):  
Tao Han ◽  
Josh Sayre ◽  
Susanne Westhoff
Keyword(s):  
Top Quark ◽  
High Energy ◽  
Hadron Colliders ◽  
Energy Hadron

scholarly journals Probing gauge-phobic heavy Higgs bosons at high energy hadron colliders

2015 ◽  
Vol 747 ◽  
pp. 193-199 ◽  
Author(s):  
Yu-Ping Kuang ◽  
Ling-Hao Xia
Keyword(s):  
High Energy ◽  
Higgs Bosons ◽  
Hadron Colliders ◽  
Energy Hadron

scholarly journals Characterizing new physics with polarized beams at high-energy hadron colliders

2014 ◽  
Vol 2014 (5) ◽  
Author(s):  
Benjamin Fuks ◽  
Josselin Proudom ◽  
Juan Rojo ◽  
Ingo Schienbein
Keyword(s):  
High Energy ◽  
New Physics ◽  
Hadron Colliders ◽  
Polarized Beams ◽  
Energy Hadron

scholarly journals Prompt $${J/\psi }$$-pair production at the LHC: impact of loop-induced contributions and of the colour-octet mechanism

2019 ◽  
Vol 79 (12) ◽  
Author(s):  
Jean-Philippe Lansberg ◽  
Hua-Sheng Shao ◽  
Nodoka Yamanaka ◽  
Yu-Jie Zhang
Keyword(s):  
Pair Production ◽  
Good Control ◽  
Distance Matrix ◽  
High Energy ◽  
Matrix Elements ◽  
Hadron Colliders ◽  
Long Distance ◽  
Gauge Invariant ◽  
Energy Hadron ◽  
Colour Octet

AbstractPrompt double-$$J/\psi $$J/ψ production at high-energy hadron colliders can be considered as a golden channel to probe double parton scatterings (DPS)—in particular to study gluon–gluon correlations inside the proton—and, at the same time, to measure the distribution of linearly-polarised gluons inside the proton. Such studies, however, require a good control of both single parton scatterings (SPS) and DPS in the respective regions where they are carried out. In this context, we have critically examined two mechanisms of SPS that may be kinematically enhanced where DPS are thought to be dominant, even though they are either at higher orders in the strong-coupling or velocity expansion. First, we have considered a gauge-invariant and infrared-safe subset of the loop-induced contribution via colour-singlet (CS) transitions. We have found it to become the leading CS SPS contributions at large rapidity separation, yet too small to account for the data without invoking the presence of DPS yields. Second, we have surveyed the possible colour-octet (CO) contributions using both old and up-to-date non-perturbative long-distance matrix elements (LDMEs). We have found that the pure CO yields crucially depend on the LDMEs. Among all the LDMEs we used, only two result into a visible modification of the NRQCD (CS+CO) yield, but only in two kinematical distributions measured by ATLAS, those of the rapidity separation and of the pair invariant mass. These modifications, however, do not impact the control region used for their DPS study.

scholarly journals Central exclusive particle production at high energy hadron colliders

2010 ◽  
Vol 65 (2) ◽  
pp. 149-184 ◽  
Author(s):  
M.G. Albrow ◽  
T.D. Coughlin ◽  
J.R. Forshaw
Keyword(s):  
Particle Production ◽  
High Energy ◽  
Hadron Colliders ◽  
Energy Hadron

scholarly journals HIGGS PARTICLES AT FUTURE HADRON AND ELECTRON-POSITRON COLLIDERS

1995 ◽  
Vol 10 (01) ◽  
pp. 1-63 ◽  
Author(s):  
A. DJOUADI
Keyword(s):  
Top Quark ◽  
Quark Mass ◽  
High Energy ◽  
High Energy Electron ◽  
Hadron Colliders ◽  
Top Quark Mass ◽  
Supersymmetric Extension ◽  
Fundamental Properties ◽  
Electron Positron ◽  
The Standard Model

The prospects for discovering Higgs particles and studying their fundamental properties at future high-energy electron-positron and hadron colliders are reviewed. Both the Standard Model Higgs boson and the Higgs particles of its minimal supersymmetric extension are discussed. We update various results by taking into account the new value of the top-quark mass obtained by the CDF Collaboration, and by including radiative corrections, some of which have been calculated only recently.

scholarly journals J/ψ, ψ′ AND ϒ PRODUCTION AT HADRON COLLIDERS: A REVIEW

2006 ◽  
Vol 21 (19n20) ◽  
pp. 3857-3915 ◽  
Author(s):  
JEAN-PHILIPPE LANSBERG
Keyword(s):  
Experimental Data ◽  
Present Status ◽  
High Energy ◽  
Experimental Measurements ◽  
Color Singlet ◽  
Hadron Colliders ◽  
Direct Production ◽  
Quarkonium Production ◽  
Energy Hadron ◽  
Hadron Duality

We give an overview of the present status of knowledge of the production of J/ψ, ψ′ and ϒ in high-energy hadron collisions. We first present two early models, namely the Color-Singlet Model (CSM) and the Color-Evaporation Model (CEM). The first is the natural application of pQCD to quarkonium production and has been shown to fail dramatically to describe experimental data, the second is its phenomenological counterpart and was introduced in the spirit of the quark–hadron duality in the late 1970's. Then, we expose the most recent experimental measurements of J/ψ, ψ′ and ϒ prompt and direct production at nonzero pTfrom two high-energy hadron colliders, the Tevatron and RHIC. In a third part, we review six contemporary models describing J/ψ, ψ′ and ϒ production at nonzero pT.

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