scholarly journals Parton correlations in same-sign W pair production via double parton scattering at the LHC

2017 ◽  
Vol 95 (11) ◽  
Author(s):  
Federico Alberto Ceccopieri ◽  
Matteo Rinaldi ◽  
Sergio Scopetta
Keyword(s):  
Pair Production ◽  
Double Parton Scattering ◽  
Parton Scattering

scholarly journals Production of quarkonium pairs in high-energy proton-proton collisions

2019 ◽  
Vol 199 ◽  
pp. 01021 ◽  
Author(s):  
Wolfgang Schäfer
Keyword(s):  
Pair Production ◽  
Cross Sections ◽  
High Energy ◽  
Open Problems ◽  
Proton Proton ◽  
Proton Collisions ◽  
Double Parton Scattering ◽  
Parton Scattering ◽  
To Receive ◽  
Proton Proton Collisions

Recently there has been much interest in the pair production of quarkonia (charmonia, bottomonia). There are two main motivations behind these studies: first, these processes may help to differentiate between different proposed production mechanisms via color-octet and color-singlet QQ̄ -pair production. Second, the production of quarkonium pairs is expected to receive an important contribution from double parton scattering (DPS) processes. There remain a number of open problems, especially with the CMS and ATLAS data. In the kinematics of these experiments, the leading order of $O\left( {\alpha _S^4} \right)$ is clearly not sufficient. The double parton scattering (DPS) contribution was claimed to be large or even dominant in some corners of the phase space, when the rapidity distance Δy between two J/ψ mesons is large. However the effective cross sections σeff found from empirical analyses are about a factor 2.5 smaller than the usually accepted σeff = 15 mb. Here we discuss, which single-parton-scattering mechanisms can mimic the behavior of DPS induced production. Here especially the production of χ-pairs is important.

scholarly journals Same-sign W pair production as a probe of double-parton scattering at the LHC

2010 ◽  
Vol 69 (1-2) ◽  
pp. 53-65 ◽  
Author(s):  
Jonathan R. Gaunt ◽  
Chun-Hay Kom ◽  
Anna Kulesza ◽  
W. James Stirling
Keyword(s):  
Pair Production ◽  
Double Parton Scattering ◽  
Parton Scattering

scholarly journals Recent Results on Inclusive Quarkonium Pair Production in Proton-Proton Collisions

2019 ◽  
Vol 64 (8) ◽  
pp. 750
Author(s):  
W. Schäfer ◽  
I. Babiarz ◽  
A. Cisek ◽  
A. Szczurek
Keyword(s):  
Pair Production ◽  
Effective Cross Section ◽  
Proton Proton ◽  
Proton Collisions ◽  
Double Parton Scattering ◽  
Parton Scattering ◽  
To Receive ◽  
The Empirical Analysis ◽  
Proton Proton Collisions ◽  
Mode A

Recently, there has been much interest in the pair production of charmonia. One of the main motivations behind these studies is that the production of quarkonium pairs is expected to receive an important contribution from the double parton scattering (DPS) production mode. A large effective cross-section qeff is found from the empirical analysis of the J/ф-pair production – about a factor 2.5 smaller than the usually accepted qeff = 15 mb. Here, we present the recent results of our calculations of the xc pair production, mainly in the single parton scattering (SPS) mode. An important feature is that the single-gluon exchange mechanism can to some extent mimic the behavior of the DPS production.

scholarly journals Double Parton Scattering and 3D Proton Structure: A Light-Front Analysis

2016 ◽  
Vol 57 (6) ◽  
pp. 431-435 ◽  
Author(s):  
Matteo Rinaldi ◽  
Sergio Scopetta ◽  
Marco Traini ◽  
Vicente Vento
Keyword(s):  
Light Front ◽  
Double Parton Scattering ◽  
Proton Structure ◽  
Parton Scattering

scholarly journals Double Parton Scattering in 4-jet production at the LHC with and without open b-bar

2017 ◽  
Author(s):  
Mirko Serino ◽  
Andreas van Hameren ◽  
Marcin Bury ◽  
Hannes JUNG ◽  
Krzysztof Kutak
Keyword(s):  
Jet Production ◽  
Double Parton Scattering ◽  
Parton Scattering
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