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

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

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 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 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

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.

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