Abstract
We propose a novel idea for probing the Higgs boson couplings through the measurement of hadronic event shape distributions in the decay of the Higgs boson at lepton colliders. The method provides a unique test of the Higgs boson couplings and of QCD effects in the decay of the Higgs boson. It can be used to probe the Yukawa couplings of the light quarks and to further test the mechanism of electroweak symmetry breaking. From a case study for the proposed Circular Electron-Positron Collider, assuming a hypothesis of SM-like theory, light-quark couplings with a strength greater than 9% of the bottom-quark Yukawa coupling in the standard model can be excluded.
Article PDF
Similar content being viewed by others
References
CMS collaboration, Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC, Phys. Lett. B 716 (2012) 30 [arXiv:1207.7235] [INSPIRE].
ATLAS collaboration, Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC, Phys. Lett. B 716 (2012) 1 [arXiv:1207.7214] [INSPIRE].
S. Dawson et al., Working group report: Higgs boson, arXiv:1310.8361 [INSPIRE].
CEPC-SPPC study group, CEPC-SPPC preliminary conceptual design report 1. Physics and detector, IHEP-CEPC-DR-2015-01, China, (2015) [IHEP-TH-2015-01] [IHEP-EP-2015-01] [INSPIRE].
G.F. Giudice and O. Lebedev, Higgs-dependent Yukawa couplings, Phys. Lett. B 665 (2008) 79 [arXiv:0804.1753] [INSPIRE].
F. Bishara, J. Brod, P. Uttayarat and J. Zupan, Nonstandard Yukawa couplings and Higgs portal dark matter, JHEP 01 (2016) 010 [arXiv:1504.04022] [INSPIRE].
J. Gao, Differentiating the production mechanisms of the Higgs-like resonance using inclusive observables at hadron colliders, JHEP 02 (2014) 094 [arXiv:1308.5453] [INSPIRE].
F. Bishara, U. Haisch, P.F. Monni and E. Re, Constraining light-quark Yukawa couplings from Higgs distributions, Phys. Rev. Lett. 118 (2017) 121801 [arXiv:1606.09253] [INSPIRE].
Y. Soreq, H.X. Zhu and J. Zupan, Light quark Yukawa couplings from Higgs kinematics, JHEP 12 (2016) 045 [arXiv:1606.09621] [INSPIRE].
G.T. Bodwin, F. Petriello, S. Stoynev and M. Velasco, Higgs boson decays to quarkonia and the \( H\overline{c}c \) coupling, Phys. Rev. D 88 (2013) 053003 [arXiv:1306.5770] [INSPIRE].
A.L. Kagan, G. Perez, F. Petriello, Y. Soreq, S. Stoynev and J. Zupan, Exclusive window onto Higgs Yukawa couplings, Phys. Rev. Lett. 114 (2015) 101802 [arXiv:1406.1722] [INSPIRE].
Y. Zhou, Constraining the Higgs boson coupling to light quarks in the H → ZZ final states, Phys. Rev. D 93 (2016) 013019 [arXiv:1505.06369] [INSPIRE].
M. König and M. Neubert, Exclusive radiative Higgs decays as probes of light-quark Yukawa couplings, JHEP 08 (2015) 012 [arXiv:1505.03870] [INSPIRE].
G. Perez, Y. Soreq, E. Stamou and K. Tobioka, Prospects for measuring the Higgs boson coupling to light quarks, Phys. Rev. D 93 (2016) 013001 [arXiv:1505.06689] [INSPIRE].
A.S. Chisholm, S. Kuttimalai, K. Nikolopoulos and M. Spannowsky, Measuring rare and exclusive Higgs boson decays into light resonances, Eur. Phys. J. C 76 (2016) 501 [arXiv:1606.09177] [INSPIRE].
J.R. Andersen et al., Les Houches 2015: physics at TeV colliders Standard Model working group report, arXiv:1605.04692 [INSPIRE].
C. Englert, M. Spannowsky and M. Takeuchi, Measuring Higgs CP and couplings with hadronic event shapes, JHEP 06 (2012) 108 [arXiv:1203.5788] [INSPIRE].
C. Englert, D. Goncalves, G. Nail and M. Spannowsky, The shape of spins, Phys. Rev. D 88 (2013) 013016 [arXiv:1304.0033] [INSPIRE].
OPAL collaboration, G. Abbiendi et al., Measurement of event shape distributions and moments in e + e − → hadrons at 91 GeV-209 GeV and a determination of α s , Eur. Phys. J. C 40 (2005) 287 [hep-ex/0503051] [INSPIRE].
ALEPH collaboration, A. Heister et al., Studies of QCD at e + e − centre-of-mass energies between 91 GeV and 209 GeV, Eur. Phys. J. C 35 (2004) 457 [INSPIRE].
A. Banfi, H. McAslan, P.F. Monni and G. Zanderighi, A general method for the resummation of event-shape distributions in e + e − annihilation, JHEP 05 (2015) 102 [arXiv:1412.2126] [INSPIRE].
A. Banfi, H. McAslan, P.F. Monni and G. Zanderighi, The two-jet rate in e + e − at next-to-next-to-leading-logarithmic order, Phys. Rev. Lett. 117 (2016) 172001 [arXiv:1607.03111] [INSPIRE].
T. Becher and M.D. Schwartz, A precise determination of α s from LEP thrust data using effective field theory, JHEP 07 (2008) 034 [arXiv:0803.0342] [INSPIRE].
R. Abbate, M. Fickinger, A.H. Hoang, V. Mateu and I.W. Stewart, Thrust at N 3 LL with power corrections and a precision global fit for α s (m Z ), Phys. Rev. D 83 (2011) 074021 [arXiv:1006.3080] [INSPIRE].
A.H. Hoang, D.W. Kolodrubetz, V. Mateu and I.W. Stewart, C-parameter distribution at N 3 LL’ including power corrections, Phys. Rev. D 91 (2015) 094017 [arXiv:1411.6633] [INSPIRE].
A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover and G. Heinrich, Second-order QCD corrections to the thrust distribution, Phys. Rev. Lett. 99 (2007) 132002 [arXiv:0707.1285] [INSPIRE].
V. Del Duca et al., Jet production in the CoLoRFulNNLO method: event shapes in electron-positron collisions, Phys. Rev. D 94 (2016) 074019 [arXiv:1606.03453] [INSPIRE].
L. Lönnblad, ARIADNE version 4: a program for simulation of QCD cascades implementing the color dipole model, Comput. Phys. Commun. 71 (1992) 15 [INSPIRE].
T. Sjöstrand, S. Mrenna and P.Z. Skands, A brief introduction to PYTHIA 8.1, Comput. Phys. Commun. 178 (2008) 852 [arXiv:0710.3820] [INSPIRE].
M. Bahr et al., HERWIG++ physics and manual, Eur. Phys. J. C 58 (2008) 639 [arXiv:0803.0883] [INSPIRE].
T. Gleisberg et al., Event generation with SHERPA 1.1, JHEP 02 (2009) 007 [arXiv:0811.4622] [INSPIRE].
S. Catani, F. Krauss, R. Kuhn and B.R. Webber, QCD matrix elements + parton showers, JHEP 11 (2001) 063 [hep-ph/0109231] [INSPIRE].
R.W.L. Jones, M. Ford, G.P. Salam, H. Stenzel and D. Wicke, Theoretical uncertainties on α s from event shape variables in e + e − annihilations, JHEP 12 (2003) 007 [hep-ph/0312016] [INSPIRE].
G. Dissertori et al., Determination of the strong coupling constant using matched NNLO+NLLA predictions for hadronic event shapes in e + e − annihilations, JHEP 08 (2009) 036 [arXiv:0906.3436] [INSPIRE].
Particle Data Group collaboration, J. Beringer et al., Review of particle physics (RPP), Phys. Rev. D 86 (2012) 010001 [INSPIRE].
J.-C. Winter, F. Krauss and G. Soff, A modified cluster hadronization model, Eur. Phys. J. C 36 (2004) 381 [hep-ph/0311085] [INSPIRE].
T. Sjöstrand, S. Mrenna and P.Z. Skands, PYTHIA 6.4 physics and manual, JHEP 05 (2006) 026 [hep-ph/0603175] [INSPIRE].
Z. Chen et al., Cross section and Higgs mass measurement with Higgsstrahlung at the CEPC, Chin. Phys. C 41 (2017) 023003 [arXiv:1601.05352] [INSPIRE].
LHC Higgs Cross section Working Group collaboration, J.R. Andersen et al., Handbook of LHC Higgs cross sections: 3. Higgs properties, arXiv:1307.1347 [INSPIRE].
ATLAS collaboration, Performance of b-jet identification in the ATLAS experiment, 2016 JINST 11 P04008 [arXiv:1512.01094] [INSPIRE].
R. Manqi, Simulation, reconstruction and Higgs analysis at CEPC, talk given at Saclay discussion, (2015).
G. Cowan, K. Cranmer, E. Gross and O. Vitells, Asymptotic formulae for likelihood-based tests of new physics, Eur. Phys. J. C 71 (2011) 1554 [Erratum ibid. C 73 (2013) 2501] [arXiv:1007.1727] [INSPIRE].
A.L. Read, Modified frequentist analysis of search results (the CL s method), in Confidence limits, CERN-OPEN-2000-205, Geneva Switzerland, (2000), pg. 81.
M. Srednicki, Comment on “ambiguities in the up-quark mass”, Phys. Rev. Lett. 95 (2005) 059101 [hep-ph/0503051] [INSPIRE].
OPAL collaboration, G. Abbiendi et al., Determination of α s using OPAL hadronic event shapes at \( \sqrt{s}=91-209 \) GeV and resummed NNLO calculations, Eur. Phys. J. C 71 (2011) 1733 [arXiv:1101.1470] [INSPIRE].
Open Access
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Author information
Authors and Affiliations
Corresponding author
Additional information
ArXiv ePrint: 1608.01746
Rights and permissions
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
About this article
Cite this article
Gao, J. Probing light-quark Yukawa couplings via hadronic event shapes at lepton colliders. J. High Energ. Phys. 2018, 38 (2018). https://doi.org/10.1007/JHEP01(2018)038
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/JHEP01(2018)038