ﻻ يوجد ملخص باللغة العربية
Motivated by the possible diphoton excess around $750~rm{GeV}$ observed by ATLAS and CMS at $13~rm{TeV}$, we consider a coloron model from $rm{SU}(3)_1 times rm{SU}(3)_2$ spontaneously breaking to the Standard Model $rm{SU}(3)_C$. A colored massive vector boson is resonantly produced by $q bar q $ in proton collision, followed by a colored scalar cascade decay. This process gives two photons and one jet in the final states. And the kinetic edge of the two photons can be an interpretation of the diphoton excess, while satisfying the dijet, $rm{t}bar{t}$, jet+photon resonance constraints. In this model, due to the large mass of vector resonance, the parton luminosity function ratio between $13~rm{TeV}$ and $8~rm{TeV}$ can be quite large. Therefore, the diphoton excess has not been observed at $8~rm{TeV}$ search. On the other hand, having all the new particles color-charged around $rm{TeV}$, this model predicts new signals at the LHC, which can be validated soon.
Pair production of colored particles is in general accompanied by production of QCD bound states (onia) slightly below the pair-production threshold. Bound state annihilation leads to resonant signals, which in some cases are easier to see than the d
We investigate a possibility for explaining the recently announced 750,GeV diphoton excess by the ATLAS and the CMS experiments at the CERN LHC in a model with multiple doubly charged particles, which was originally suggested for explaining tiny neut
We investigate the parameter space of a model which extends next to minimal supersymmetric standard model (NMSSM) with the vectorlike (VL) particles. We find that the $10+overline{10}$ model can explain the possible diphoton excess recently revealed
We argue that the QCD axion can arise from many aligned axions with decay constants much smaller than the conventional axion window. If the typical decay constant is of {cal O}{(100)} GeV to 1 TeV, one or more of the axions or saxions may account for
We interpret the di-photon excess recently reported by the ATLAS and CMS collaborations as a new resonance arising from the sgoldstino scalar, which is the superpartner of the Goldstone mode of spontaneous supersymmetry breaking, the goldstino. The s