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High Energy Physics - Phenomenology

arXiv:1602.06814 (hep-ph)
[Submitted on 22 Feb 2016 (v1), last revised 24 May 2016 (this version, v4)]

Title:Four-jet production in single- and double-parton scattering within high-energy factorization

Authors:Krzysztof Kutak, Rafal Maciula, Mirko Serino, Antoni Szczurek, Andreas van Hameren
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Abstract:We perform a first study of 4-jet production in a complete high-energy factorization (HEF) framework. We include and discuss contributions from both single-parton scattering (SPS) and double-parton scattering (DPS). The calculations are performed for kinematical situations relevant for two experimental measurements (ATLAS and CMS) at the LHC. We compare our results to those reported by the ATLAS and CMS collaborations for different sets of kinematical cuts. The results of the HEF approach are compared with their counterparts for collinear factorization. For symmetric cuts the DPS HEF result is considerably smaller than the one obtained with collinear factorization. The mechanism leading to this difference is of kinematical nature. We conclude that an analysis of inclusive 4-jet production with asymmetric $p_T$-cuts below 50 GeV would be useful to enhance the DPS contribution relative to the SPS contribution. In contrast to the collinear approach, the HEF approach nicely describes the distribution of the $\Delta S$ variable, which involves all four jets and their angular correlations.
Comments: 18 pages, 14 figures
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
Cite as: arXiv:1602.06814 [hep-ph]
  (or arXiv:1602.06814v4 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1602.06814
Journal reference: JHEP 1604 (2016) 175
Related DOI: https://doi.org/10.1007/JHEP04%282016%29175

Submission history

From: Rafal Maciula [view email]
[v1] Mon, 22 Feb 2016 15:24:11 UTC (350 KB)
[v2] Tue, 23 Feb 2016 11:58:12 UTC (351 KB)
[v3] Thu, 25 Feb 2016 12:56:35 UTC (352 KB)
[v4] Tue, 24 May 2016 14:27:44 UTC (590 KB)
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