• Open Access

NNLO QCDQED corrections to Higgs production in bottom quark annihilation

Ajjath A H, Pulak Banerjee, Amlan Chakraborty, Prasanna K. Dhani, Pooja Mukherjee, Narayan Rana, and V. Ravindran
Phys. Rev. D 100, 114016 – Published 10 December 2019

Abstract

We present next-to-next-to leading order (NNLO) quantum electrodynamics (QED) corrections to the production of the Higgs boson in bottom quark annihilation at the Large Hadron Collider (LHC) in the five flavor scheme. We have systematically included the NNLO corrections resulting from the interference of quantum chromodynamics (QCD) and QED interactions. We have investigated the infrared (IR) structure of the bottom quark form factor up to two-loop level in QED and in QCD×QED using K+G equation. We find that the IR poles in the form factor are controlled by the universal cusp, collinear and soft anomalous dimensions. In addition, we derive the QED as well as QCD×QED contributions to soft distribution function as well as to the ultraviolet renormalization constant of the bottom Yukawa coupling up to second order in strong coupling and fine structure constant. Finally, we report our findings on the numerical impact of the NNLO results from QED and QCD×QED at the LHC energies taking into account the dominant NNLO QCD corrections.

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  • Received 4 July 2019

DOI:https://doi.org/10.1103/PhysRevD.100.114016

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Ajjath A H1,*, Pulak Banerjee2,†, Amlan Chakraborty1,‡, Prasanna K. Dhani3,§, Pooja Mukherjee1,∥, Narayan Rana4,¶, and V. Ravindran1,**

  • 1The Institute of Mathematical Sciences, HBNI, Taramani, Chennai 600113, India
  • 2Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
  • 3INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Florence, Italy
  • 4INFN, Sezione di Milano, Via Celoria 16, I-20133 Milan, Italy

  • *ajjathah@imsc.res.in
  • pulak.banerjee@psi.ch
  • amlanchak@imsc.res.in
  • §prasannakumar.dhani@fi.infn.it
  • poojamukherjee@imsc.res.in
  • narayan.rana@mi.infn.it
  • **ravindra@imsc.res.in

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Issue

Vol. 100, Iss. 11 — 1 December 2019

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