Measurement of the production cross section of a Higgs boson with large transverse momentum in its decays to a pair of $\tau$ leptons in proton-proton collisions at $\sqrt{s}$ = 13 TeV

Abstract

A measurement of the production cross section of a Higgs boson with transverse momentum greater than 250 GeV is presented where the Higgs boson decays to a pair of $\tau$ leptons. It is based on proton-proton collision data collected by the CMS experiment at the CERN LHC at a center-of-mass energy of 13 TeV. The data sample corresponds to an integrated luminosity of 138 fb${}^{-1}$. Because of the large transverse momentum of the Higgs boson the $\tau$ leptons from its decays are boosted and produced spatially close, with their decay products overlapping. Therefore, a dedicated algorithm was developed to reconstruct and identify them. The observed (expected) significance of the measured signal with respect to the standard model background-only hypothesis is 3.5 (2.2) standard deviations. The product of the production cross section and branching fraction is measured to be 1.64 ${}_{-0.54}^{+0.68}$ times the standard model expectation. The fiducial differential production cross section is also measured as functions of the Higgs boson and leading jet transverse momenta. This measurement extends the probed large-transverse-momentum region in the $\tau \tau$ final state beyond 600 GeV.

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-21-017 (CMS Public Pages)

References in corpus (14)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• An Introduction to PYTHIA 8.2
• Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
• Particle-flow reconstruction and global event description with the CMS detector
• Single-top Wt-channel production matched with parton showers using the POWHEG method
• Electroweak gauge boson production at hadron colliders through O(alpha_s^2)
• Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV
• A portrait of the Higgs boson by the CMS experiment ten years after the discovery
• A detailed map of Higgs boson interactions by the ATLAS experiment ten years after the discovery
• $W^{+}{W}^{-}$ production at hadron colliders in NNLO QCD
• Precision luminosity measurement in proton-proton collisions at $\sqrt{s}=$ 13 TeV in 2015 and 2016 at CMS
• Measurements of the Higgs boson inclusive and differential fiducial cross sections in the 4$\ell$ decay channel at $\sqrt{s}$ = 13 TeV
• Measurements of differential cross sections of Higgs boson production through gluon fusion in the $H\to W{W}^{\ast }\to e\nu \mu \nu$ final state at $\sqrt{s}=13$ TeV with the ATLAS detector

Cited by in corpus (3)

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