skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Pseudoscalar pair production via off-shell Higgs in composite Higgs models

Abstract

We propose a new type of search for a pseudoscalar particle \eta η pair produced via an off-shell Higgs, pp\to h^*\to \eta\eta p p h * η η . The search is motivated by a composite Higgs model in which the \eta η is extremely narrow and decays almost exclusively into Z\gamma Z γ in the mass range 65{\mathrm{GeV}}\lesssim m_\eta \lesssim 160{\mathrm{GeV}} 65 G e V m η 160 G e V . We devise an analysis strategy to observe the novel Z\gamma Z\gamma Z γ Z γ channel and estimate potential bounds on the Higgs- \eta η coupling. The experimental sensitivity to the signatures depends on the power to identify fake photons and on the ability to predict large photon multiplicities. This search allows us to exclude large values of the compositeness scale f f , being thus complementary to other typical processes.

Authors:
 [1];  [1];  [2];  [3]
  1. Chalmers University of Technology
  2. University of Kansas
  3. Chinese Academy of Sciences, Institute of Theoretical Physics, Chinese Academy of Sciences, Peking University, University of Chinese Academy of Sciences
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1720206
Grant/Contract Number:  
SC0017988
Resource Type:
Published Article
Journal Name:
SciPost Physics Proceedings
Additional Journal Information:
Journal Name: SciPost Physics Proceedings Journal Volume: 9 Journal Issue: 5; Journal ID: ISSN 2542-4653
Publisher:
Stichting SciPost
Country of Publication:
Netherlands
Language:
English

Citation Formats

Buarque Franzosi, Diogo, Ferretti, Gabriele, Huang, Li, and Shu, Jing. Pseudoscalar pair production via off-shell Higgs in composite Higgs models. Netherlands: N. p., 2020. Web. https://doi.org/10.21468/SciPostPhys.9.5.077.
Buarque Franzosi, Diogo, Ferretti, Gabriele, Huang, Li, & Shu, Jing. Pseudoscalar pair production via off-shell Higgs in composite Higgs models. Netherlands. https://doi.org/10.21468/SciPostPhys.9.5.077
Buarque Franzosi, Diogo, Ferretti, Gabriele, Huang, Li, and Shu, Jing. Fri . "Pseudoscalar pair production via off-shell Higgs in composite Higgs models". Netherlands. https://doi.org/10.21468/SciPostPhys.9.5.077.
@article{osti_1720206,
title = {Pseudoscalar pair production via off-shell Higgs in composite Higgs models},
author = {Buarque Franzosi, Diogo and Ferretti, Gabriele and Huang, Li and Shu, Jing},
abstractNote = {We propose a new type of search for a pseudoscalar particle \eta η pair produced via an off-shell Higgs, pp\to h^*\to \eta\eta p p → h * → η η . The search is motivated by a composite Higgs model in which the \eta η is extremely narrow and decays almost exclusively into Z\gamma Z γ in the mass range 65{\mathrm{GeV}}\lesssim m_\eta \lesssim 160{\mathrm{GeV}} 65 G e V ≲ m η ≲ 160 G e V . We devise an analysis strategy to observe the novel Z\gamma Z\gamma Z γ Z γ channel and estimate potential bounds on the Higgs- \eta η coupling. The experimental sensitivity to the signatures depends on the power to identify fake photons and on the ability to predict large photon multiplicities. This search allows us to exclude large values of the compositeness scale f f , being thus complementary to other typical processes.},
doi = {10.21468/SciPostPhys.9.5.077},
journal = {SciPost Physics Proceedings},
number = 5,
volume = 9,
place = {Netherlands},
year = {2020},
month = {11}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.21468/SciPostPhys.9.5.077

Save / Share:

Works referenced in this record:

Implications of dynamical symmetry breaking
journal, February 1976


Anomalous couplings in double Higgs production
journal, August 2012

  • Contino, Roberto; Ghezzi, Margherita; Moretti, Mauro
  • Journal of High Energy Physics, Vol. 2012, Issue 8
  • DOI: 10.1007/JHEP08(2012)154

Partially composite Goldstone Higgs boson
journal, November 2017


MadGraph 5: going beyond
journal, June 2011

  • Alwall, Johan; Herquet, Michel; Maltoni, Fabio
  • Journal of High Energy Physics, Vol. 2011, Issue 6
  • DOI: 10.1007/JHEP06(2011)128

Parton distributions with QED corrections
journal, December 2013


Composite Higgses
journal, May 2014


Sigma-assisted low scale composite Goldstone–Higgs
journal, January 2020

  • Buarque Franzosi, Diogo; Cacciapaglia, Giacomo; Deandrea, Aldo
  • The European Physical Journal C, Vol. 80, Issue 1
  • DOI: 10.1140/epjc/s10052-019-7572-z

The photophobic ALP
journal, September 2018

  • Craig, Nathaniel; Hook, Anson; Kasko, Skyler
  • Journal of High Energy Physics, Vol. 2018, Issue 9
  • DOI: 10.1007/JHEP09(2018)028

Search for light bosons in decays of the 125 GeV Higgs boson in proton-proton collisions at s = 8 $$ \sqrt{s}=8 $$ TeV
journal, October 2017

  • Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.
  • Journal of High Energy Physics, Vol. 2017, Issue 10
  • DOI: 10.1007/JHEP10(2017)076

Evaluation of three methods for calculating statistical significance when incorporating a systematic uncertainty into a test of the background-only hypothesis for a Poisson process
journal, October 2008

  • Cousins, Robert D.; Linnemann, James T.; Tucker, Jordan
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 595, Issue 2
  • DOI: 10.1016/j.nima.2008.07.086

Partially composite Higgs models: phenomenology and RG analysis
journal, January 2018

  • Alanne, Tommi; Buarque Franzosi, Diogo; Frandsen, Mads T.
  • Journal of High Energy Physics, Vol. 2018, Issue 1
  • DOI: 10.1007/JHEP01(2018)051

A custodial symmetry for <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>Z</mml:mi><mml:mi>b</mml:mi><mml:mover accent="true"><mml:mi>b</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math>
journal, September 2006


The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
journal, July 2014

  • Alwall, J.; Frederix, R.; Frixione, S.
  • Journal of High Energy Physics, Vol. 2014, Issue 7
  • DOI: 10.1007/JHEP07(2014)079

Beyond the minimal composite Higgs model
journal, April 2009


Fundamental composite 2HDM: SU(N) with 4 flavours
journal, March 2016


The minimal composite Higgs model
journal, July 2005


Current algebra theorems for the U(1) “Goldstone boson”
journal, September 1979


UV complete partially composite pseudo-Nambu Goldstone boson Higgs
journal, February 2017


Trigonometric Parity for Composite Higgs Models
journal, December 2018


SU(2) × U(1) breaking by vacuum misalignment
journal, March 1984


UFO – The Universal FeynRules Output
journal, June 2012

  • Degrande, Céline; Duhr, Claude; Fuks, Benjamin
  • Computer Physics Communications, Vol. 183, Issue 6
  • DOI: 10.1016/j.cpc.2012.01.022

Matching matrix elements and shower evolution for top-pair production in hadronic collisions
journal, January 2007

  • Mangano, Michelangelo L.; Moretti, Mauro; Piccinini, Fulvio
  • Journal of High Energy Physics, Vol. 2007, Issue 01
  • DOI: 10.1088/1126-6708/2007/01/013

A dangerous irrelevant UV-completion of the composite Higgs
journal, February 2017


Consequences of anomalous ward identities
journal, November 1971


One-loop chiral perturbation theory with two fermion representations
journal, July 2016


Fermionic UV completions of composite Higgs models
journal, March 2014

  • Ferretti, Gabriele; Karateev, Denis
  • Journal of High Energy Physics, Vol. 2014, Issue 3
  • DOI: 10.1007/JHEP03(2014)077

Mass without scalars
journal, August 1979


Composite Higgs and custodial SU(2)
journal, September 1984


Collider probes of axion-like particles
journal, December 2017

  • Bauer, Martin; Neubert, Matthias; Thamm, Andrea
  • Journal of High Energy Physics, Vol. 2017, Issue 12
  • DOI: 10.1007/JHEP12(2017)044

Dynamics of spontaneous symmetry breaking in the Weinberg-Salam theory
journal, November 1979


Classification of NLO operators for composite Higgs models
journal, April 2018


Anatomy of a composite Higgs model
journal, January 1985


DELPHES 3: a modular framework for fast simulation of a generic collider experiment
journal, February 2014

  • de Favereau, J.; Delaere, C.; Demin, P.
  • Journal of High Energy Physics, Vol. 2014, Issue 2
  • DOI: 10.1007/JHEP02(2014)057

Left-right symmetric composite Higgs model
journal, February 2020


The Higgs as a Composite Nambu-Goldstone Boson
conference, January 2012

  • Contino, Roberto
  • Proceedings of the Theoretical Advanced Study Institute in Elementary Particle Physics, Physics of the Large and the Small
  • DOI: 10.1142/9789814327183_0005

Analysis methods for results in gamma-ray astronomy
journal, September 1983

  • Li, T. -P.; Ma, Y. -Q.
  • The Astrophysical Journal, Vol. 272
  • DOI: 10.1086/161295

Electroweak precision observables, new physics and the nature of a 126 GeV Higgs boson
journal, August 2013

  • Ciuchini, Marco; Franco, Enrico; Mishima, Satoshi
  • Journal of High Energy Physics, Vol. 2013, Issue 8
  • DOI: 10.1007/JHEP08(2013)106

An introduction to PYTHIA 8.2
journal, June 2015

  • Sjöstrand, Torbjörn; Ask, Stefan; Christiansen, Jesper R.
  • Computer Physics Communications, Vol. 191
  • DOI: 10.1016/j.cpc.2015.01.024

Common exotic decays of top partners
journal, June 2018

  • Bizot, Nicolas; Cacciapaglia, Giacomo; Flacke, Thomas
  • Journal of High Energy Physics, Vol. 2018, Issue 6
  • DOI: 10.1007/JHEP06(2018)065

Raising the sideways scale
journal, September 1981


Signatures of vector-like top partners decaying into new neutral scalar or pseudoscalar bosons
journal, May 2020

  • Benbrik, R.; Kuutmann, E. Bergeaas; Franzosi, D. Buarque
  • Journal of High Energy Physics, Vol. 2020, Issue 5
  • DOI: 10.1007/JHEP05(2020)028

Asymptotic formulae for likelihood-based tests of new physics
journal, February 2011


Flavor at ssc energies: A new mechanism for dynamically generated fermion masses
journal, November 1991


UV descriptions of composite Higgs models without elementary scalars
journal, February 2014

  • Barnard, James; Gherghetta, Tony; Ray, Tirtha Sankar
  • Journal of High Energy Physics, Vol. 2014, Issue 2
  • DOI: 10.1007/JHEP02(2014)002

Fundamental composite electroweak dynamics: Status at the LHC
journal, January 2017


Some Inequalities among Hadron Masses
journal, December 1983


Gauge theories of partial compositeness: scenarios for Run-II of the LHC
journal, June 2016