Gluons to Diphotons via New Particles with Half the Signal’s Invariant Mass
Abstract
We report that any new particle charged under SU(3)C and carrying electric charge will leave an imprint in the di-photon invariant mass spectrum as it can mediate gg→γγ process through loops. The combination of properties of loop functions, threshold resummation and gluon pdfs can result in a peak-like feature in the di-photon invariant mass around twice the mass of a given particle even if the particle is short-lived and thus it doesn't form a narrow bound state. Using recent ATLAS analysis, we set upper limits on the combined SU(3)C and electric charge of new particles and indicate future prospects. Additionally, we discuss the possibility that the excess of events in the di-photon invariant mass spectrum around 750 GeV originates from loops of a particle with mass around 375 GeV.
- Authors:
-
- Seoul National Univ. (Korea, Republic of)
- Seoul National Univ. (Korea, Republic of); Indiana Univ., Bloomington, IN (United States)
- Publication Date:
- Research Org.:
- Indiana Univ., Bloomington, IN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Research Foundation of Korea (NRF)
- OSTI Identifier:
- 1597032
- Alternate Identifier(s):
- OSTI ID: 1283424
- Grant/Contract Number:
- SC0010120; 0426-20140009; 0409-20150110
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 117; Journal Issue: 6; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Leptonic, semileptonic & radiative decays; Particle production; Hypothetical fermions; Hypothetical scalars
Citation Formats
Chway, Dongjin, Dermíšek, Radovan, Jung, Tae Hyun, and Kim, Hyung Do. Gluons to Diphotons via New Particles with Half the Signal’s Invariant Mass. United States: N. p., 2016.
Web. doi:10.1103/PhysRevLett.117.061801.
Chway, Dongjin, Dermíšek, Radovan, Jung, Tae Hyun, & Kim, Hyung Do. Gluons to Diphotons via New Particles with Half the Signal’s Invariant Mass. United States. https://doi.org/10.1103/PhysRevLett.117.061801
Chway, Dongjin, Dermíšek, Radovan, Jung, Tae Hyun, and Kim, Hyung Do. Fri .
"Gluons to Diphotons via New Particles with Half the Signal’s Invariant Mass". United States. https://doi.org/10.1103/PhysRevLett.117.061801. https://www.osti.gov/servlets/purl/1597032.
@article{osti_1597032,
title = {Gluons to Diphotons via New Particles with Half the Signal’s Invariant Mass},
author = {Chway, Dongjin and Dermíšek, Radovan and Jung, Tae Hyun and Kim, Hyung Do},
abstractNote = {We report that any new particle charged under SU(3)C and carrying electric charge will leave an imprint in the di-photon invariant mass spectrum as it can mediate gg→γγ process through loops. The combination of properties of loop functions, threshold resummation and gluon pdfs can result in a peak-like feature in the di-photon invariant mass around twice the mass of a given particle even if the particle is short-lived and thus it doesn't form a narrow bound state. Using recent ATLAS analysis, we set upper limits on the combined SU(3)C and electric charge of new particles and indicate future prospects. Additionally, we discuss the possibility that the excess of events in the di-photon invariant mass spectrum around 750 GeV originates from loops of a particle with mass around 375 GeV.},
doi = {10.1103/PhysRevLett.117.061801},
journal = {Physical Review Letters},
number = 6,
volume = 117,
place = {United States},
year = {Fri Aug 05 00:00:00 EDT 2016},
month = {Fri Aug 05 00:00:00 EDT 2016}
}
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Works referencing / citing this record:
Top-quark effects in diphoton production through gluon fusion at next-to-leading order in QCD
journal, October 2019
- Maltoni, Fabio; Mandal, Manoj K.; Zhao, Xiaoran
- Physical Review D, Vol. 100, Issue 7
Loop Induced Single Top Partner Production and Decay at the LHC
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- arXiv