A composite model for the 750 GeV diphoton excess

Harigaya, Keisuke; Nomura, Yasunori

doi:10.1007/JHEP03(2016)091

Title: A composite model for the 750 GeV diphoton excess

Journal Article · Mon Mar 14 00:00:00 EDT 2016 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/JHEP03(2016)091· OSTI ID:1412517

Harigaya, Keisuke ^[1]; Nomura, Yasunori ^[1]

Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

We study a simple model in which the recently reported 750 GeV diphoton excess arises from a composite pseudo Nambu-Goldstone boson — hidden pion — produced by gluon fusion and decaying into two photons. The model only introduces an extra hidden gauge group at the TeV scale with a vectorlike quark in the bifundamental representation of the hidden and standard model gauge groups. We calculate the masses of all the hidden pions and analyze their experimental signatures and constraints. We find that two colored hidden pions must be near the current experimental limits, and hence are probed in the near future. We study physics of would-be stable particles — the composite states that do not decay purely by the hidden and standard model gauge dynamics — in detail, including constraints from cosmology. We discuss possible theoretical structures above the TeV scale, e.g. conformal dynamics and supersymmetry, and their phenomenological implications. We also discuss an extension of the minimal model in which there is an extra hidden quark that is singlet under the standard model and has a mass smaller than the hidden dynamical scale. This provides two standard model singlet hidden pions that can both be viewed as diphoton/diboson resonances produced by gluon fusion. We discuss several scenarios in which these (and other) resonances can be used to explain various excesses seen in the LHC data.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 1412517

Journal Information:: Journal of High Energy Physics (Online), Vol. 2016, Issue 3; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 21 works

Citation information provided by
Web of Science

References (35)

The Quantum Theory of Fields, Volume 2: Modern Applications Weinberg, Steven https://doi.org/10.1017/CBO9781139644174	book	May 2013
The relic abundance of long-lived heavy colored particles Kang, Junhai; Luty, Markus A.; Nasri, Salah Journal of High Energy Physics, Vol. 2008, Issue 09 https://doi.org/10.1088/1126-6708/2008/09/086	journal	September 2008
Scalar Hint from the Diboson Excess? Cacciapaglia, Giacomo; Deandrea, Aldo; Hashimoto, Michio Physical Review Letters, Vol. 115, Issue 17 https://doi.org/10.1103/PhysRevLett.115.171802	journal	October 2015
U(1) without instantons Veneziano, G. Nuclear Physics B, Vol. 159, Issue 1-2 https://doi.org/10.1016/0550-3213(79)90332-8	journal	November 1979
Search for diphoton resonances in the mass range from 150 to 850 GeV in pp collisions at $\sqrt{s} = 8 TeV$ Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A. Physics Letters B, Vol. 750 https://doi.org/10.1016/j.physletb.2015.09.062	journal	November 2015
Larger Higgs-boson-exchange terms in the neutron electric dipole moment Weinberg, Steven Physical Review Letters, Vol. 63, Issue 21 https://doi.org/10.1103/PhysRevLett.63.2333	journal	November 1989
Restrictions on symmetry breaking in vector-like gauge theories Vafa, C.; Witten, E. Nuclear Physics B, Vol. 234, Issue 1 https://doi.org/10.1016/0550-3213(84)90230-X	journal	March 1984
Search for new phenomena in photon+jet events collected in proton–proton collisions at <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" xmlns:sa="http://www.elsevier.com/xml/common/struct-aff/dtd"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>8</mml:mn><mml:mtext> TeV</mml:mtext></mml:math> with the ATLAS detector Aad, G.; Abajyan, T.; Abbott, B. Physics Letters B, Vol. 728 https://doi.org/10.1016/j.physletb.2013.12.029	journal	January 2014
Cosmological implications of supersymmetric axion models Kawasaki, Masahiro; Nakayama, Kazunori; Senami, Masato Journal of Cosmology and Astroparticle Physics, Vol. 2008, Issue 03 https://doi.org/10.1088/1475-7516/2008/03/009	journal	March 2008
THE SPECTRUM OF ISOTROPIC DIFFUSE GAMMA-RAY EMISSION BETWEEN 100 MeV AND 820 GeV Ackermann, M.; Ajello, M.; Albert, A. The Astrophysical Journal, Vol. 799, Issue 1 https://doi.org/10.1088/0004-637X/799/1/86	journal	January 2015
Composite models for the 750 GeV diphoton excess Harigaya, Keisuke; Nomura, Yasunori Physics Letters B, Vol. 754 https://doi.org/10.1016/j.physletb.2016.01.026	journal	March 2016
Vectorlike confinement at the LHC Kilic, Can; Okui, Takemichi; Sundrum, Raman Journal of High Energy Physics, Vol. 2010, Issue 2 https://doi.org/10.1007/JHEP02(2010)018	journal	February 2010
Diboson resonance as a portal to hidden strong dynamics Chiang, Cheng-Wei; Fukuda, Hajime; Harigaya, Keisuke Journal of High Energy Physics, Vol. 2015, Issue 11 https://doi.org/10.1007/JHEP11(2015)015	journal	November 2015
Current algebra theorems for the U(1) “Goldstone boson” Witten, E. Nuclear Physics B, Vol. 156, Issue 2 https://doi.org/10.1016/0550-3213(79)90031-2	journal	September 1979
Knocking on new physics’ door with a scalar resonance Buttazzo, Dario; Greljo, Admir; Marzocca, David The European Physical Journal C, Vol. 76, Issue 3 https://doi.org/10.1140/epjc/s10052-016-3970-7	journal	March 2016
Search for high-mass diphoton resonances in $p p$ collisions at $\sqrt{s} = 8 TeV$ with the ATLAS detector Aad, G.; Abbott, B.; Abdallah, J. Physical Review D, Vol. 92, Issue 3 https://doi.org/10.1103/PhysRevD.92.032004	journal	August 2015
Generalized dimensional analysis Georgi, Howard Physics Letters B, Vol. 298, Issue 1-2 https://doi.org/10.1016/0370-2693(93)91728-6	journal	January 1993
The LHC phenomenology of vectorlike confinement Kilic, Can; Okui, Takemichi Journal of High Energy Physics, Vol. 2010, Issue 4 https://doi.org/10.1007/JHEP04(2010)128	journal	April 2010
Searches for scalar leptoquarks in pp collisions at $$\varvec{\sqrt{s}}$$ s = 8 TeV with the ATLAS detector Aad, G.; Abbott, B.; Abdallah, J. The European Physical Journal C, Vol. 76, Issue 1 https://doi.org/10.1140/epjc/s10052-015-3823-9	journal	January 2016
Chiral quarks and the non-relativistic quark model Manohar, Aneesh; Georgi, Howard Nuclear Physics B, Vol. 234, Issue 1 https://doi.org/10.1016/0550-3213(84)90231-1	journal	March 1984
A finely-predicted Higgs boson mass from a finely-tuned weak scale Hall, Lawrence J.; Nomura, Yasunori Journal of High Energy Physics, Vol. 2010, Issue 3 https://doi.org/10.1007/JHEP03(2010)076	journal	March 2010
Search for pair production of third-generation scalar leptoquarks and top squarks in proton–proton collisions at $\sqrt{s} = 8 TeV$ Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A. Physics Letters B, Vol. 739 https://doi.org/10.1016/j.physletb.2014.10.063	journal	December 2014
Charged dark matter De Rújula, A.; Glashow, S. L.; Sarid, Uri Nuclear Physics B, Vol. 333, Issue 1 https://doi.org/10.1016/0550-3213(90)90227-5	journal	March 1990
Minimal dark matter Cirelli, Marco; Fornengo, Nicolao; Strumia, Alessandro Nuclear Physics B, Vol. 753, Issue 1-2 https://doi.org/10.1016/j.nuclphysb.2006.07.012	journal	October 2006
The Spectrum of Isotropic Diffuse Gamma-Ray Emission Between 100 MeV and 820 GeV Ackermann, Markus; Ajello, M.; Albert, A. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2016-00033	text	January 2015
Field Theory for Today: The Quantum Theory of Fields . Volume 1, Foundations. Steven Weinberg. Cambridge University Press, New York, 1995. xxvi, 609 pp. $49.95 or £35. Georgi, Howard Science, Vol. 269, Issue 5231 https://doi.org/10.1126/science.269.5231.1742	journal	September 1995
Knocking on new physics’ door with a scalar resonance Dario, Buttazzo,; Admir, Greljo,; David, Marzocca, Springer https://doi.org/10.5167/uzh-129891	text	January 2016
Search for pair production of third-generation scalar leptoquarks and top squarks in proton–proton collisions at Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A. Karlsruhe https://doi.org/10.5445/ir/1000087407	text	January 2014
The Quantum Theory of Fields Park, David American Journal of Physics, Vol. 32, Issue 10 https://doi.org/10.1119/1.1969864	journal	October 1964
Cosmological implications of supersymmetric axion models Kawasaki, Masahiro; Nakayama, Kazunori; Senami, Masato arXiv https://doi.org/10.48550/arxiv.0711.3083	text	January 2007
Vectorlike Confinement at the LHC Kilic, Can; Okui, Takemichi; Sundrum, Raman arXiv https://doi.org/10.48550/arxiv.0906.0577	text	January 2009
Diboson Resonance as a Portal to Hidden Strong Dynamics Chiang, Cheng-Wei; Fukuda, Hajime; Harigaya, Keisuke arXiv https://doi.org/10.48550/arxiv.1507.02483	preprint	January 2015
Composite Models for the 750 GeV Diphoton Excess Harigaya, Keisuke; Nomura, Yasunori arXiv https://doi.org/10.48550/arxiv.1512.04850	text	January 2015
Minimal Dark Matter Cirelli, Marco; Fornengo, Nicolao; Strumia, Alessandro arXiv https://doi.org/10.48550/arxiv.hep-ph/0512090	text	January 2005
Generalized Dimensional Analysis Georgi, Howard arXiv https://doi.org/10.48550/arxiv.hep-ph/9207278	text	January 1992

Cited By (2)

CHAMP cosmic rays Dunsky, David; Hall, Lawrence J.; Harigaya, Keisuke Journal of Cosmology and Astroparticle Physics, Vol. 2019, Issue 07 https://doi.org/10.1088/1475-7516/2019/07/015	journal	July 2019
CHAMP Cosmic Rays Dunsky, David; Hall, Lawrence J.; Harigaya, Keisuke arXiv https://doi.org/10.48550/arxiv.1812.11116	text	January 2018

Similar Records

From the 750 GeV diphoton resonance to multilepton excesses

Journal Article · Fri Jul 01 00:00:00 EDT 2016 · Physical Review D · OSTI ID:1412517

Bae, Kyu Jung; Chen, Chuan-Ren; Hamaguchi, Koichi; +1 more

Hidden pion varieties in composite models for diphoton resonances

Journal Article · Wed Oct 05 00:00:00 EDT 2016 · Physical Review D · OSTI ID:1412517

Harigaya, Keisuke; Nomura, Yasunori

String consistency, heavy exotics, and the 750 GeV diphoton excess at the LHC

Journal Article · Tue Aug 23 00:00:00 EDT 2016 · Fortschritte der Physik · OSTI ID:1412517

Cvetič, Mirjam; Halverson, James; Langacker, Paul

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
Beyond Standard Model
Technicolor and Composite Models

Title: A composite model for the 750 GeV diphoton excess

Citation Formats

References (35)

Cited By (2)

Similar Records

Related Subjects