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High Energy Physics - Phenomenology

arXiv:1510.02235 (hep-ph)
[Submitted on 8 Oct 2015]

Title:Pseudo-scalar Higgs Boson Production at Threshold N$^3$LO and N$^3$LL QCD

Authors:Taushif Ahmed, M. C. Kumar, Prakash Mathews, Narayan Rana, V. Ravindran
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Abstract:We present the first results on the production of pseudo-scalar through gluon fusion at the LHC to N$^3$LO in QCD taking into account only soft gluon effects. We have used the effective Lagrangian that describes the coupling of pseudo-scalar with the gluons in the large top quark mass limit. We have used recently available quantities namely the three loop pseudo-scalar form factor and the third order universal soft function in QCD to achieve this. Along with the fixed order results, we also present the process dependent resummation coefficient for threshold resummation to N$^3$LL in QCD. Phenomenological impact of these threshold N$^3$LO corrections to pseudo-scalar production at the LHC is presented and their role to reduce the renormalisation scale dependence is demonstrated.
Comments: 34 pages, 17 figures
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Experiment (hep-ex)
Cite as: arXiv:1510.02235 [hep-ph]
  (or arXiv:1510.02235v1 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1510.02235
Related DOI: https://doi.org/10.1140/epjc/s10052-016-4199-1

Submission history

From: Narayan Rana [view email]
[v1] Thu, 8 Oct 2015 08:43:28 UTC (253 KB)
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