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arXiv · 1512.08478

Diphoton excess at 750 GeV: gluon-gluon fusion or quark-antiquark annihilation?

Jun Gao·Hao Zhang·Hua Xing Zhu
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Abstract

Recently, ATLAS and CMS collaboration reported an excess in the diphoton events, which can be explained by a new resonance with 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.

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Jun Gao, Hao Zhang, Hua Xing Zhu. 2015-12-28. Diphoton excess at 750 GeV: gluon-gluon fusion or quark-antiquark annihilation?. https://doi.org/10.1140/epjc%2Fs10052-016-4200-z

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