Diphoton excess at 750 GeV: gluon–gluon fusion or quark–antiquark annihilation?
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10052_2016_Article_4200.pdf
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Author(s)
Gao, Jun
Zhang, Hao
Zhu, Hua Xing
Date Issued
June 2016
Journal
The European Physical Journal C
Publisher
Springer Berlin Heidelberg
Citation
Gao, Jun, Hao Zhang, and Hua Xing Zhu. “Diphoton Excess at 750 GeV: Gluon–gluon Fusion or Quark–antiquark Annihilation?” The European Physical Journal C 76.6 (2016): n. pag.
Version
Final published version
Abstract
Recently, ATLAS and CMS collaborations reported an excess in the measurement of diphoton events, which can be explained by a new resonance with a mass around 750 GeV. In this work, we explored the possibility of identifying if the hypothetical new resonance is produced through gluon–gluon fusion or quark–antiquark annihilation, or tagging the beam. Three different observables for beam tagging, namely the rapidity and transverse-momentum distribution of the diphoton, and one tagged bottom-jet cross section, are proposed. Combining the information gained from these observables, a clear distinction of the production mechanism for the diphoton resonance is promising.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-016-4200-z
