A resonance without resonance: Scrutinizing the diphoton excess at 750 GeV

作者:Kim Jong Soo; Reuter Juergen; Rolbiecki Krzysztof; Ruiz de Austri Roberto
来源:Physics Letters B, 2016, 755: 403-408.
DOI:10.1016/j.physletb.2016.02.041

摘要

Motivated by the recent diphoton excesses reported by both ATLAS and CMS collaborations, we suggest that a new heavy spinless particle is produced in gluon fusion at the LHC and decays to a couple of lighter pseudoscalars which then decay to photons. The new resonances could arise from a new strongly interacting sector and couple to Standard Model gauge bosons only via the corresponding Wess-Zumino-Witten anomaly. We present a detailed recast of the newest 13 TeV data from ATLAS and CMS together with the 8 TeV data to scan the consistency of the parameter space for those resonances.

  • 出版日期2016-4-10