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Revisiting light stringy states in view of the 750 GeV diphoton excess | Pascal Anastasopoulos
; Massimo Bianchi
; | Date: |
27 Jan 2016 | Abstract: | We investigate light massive string states that appear at brane
intersections. They replicate the massless spectrum in a richer fashion and may
be parametrically lighter than standard Regge excitations. We identify the
first few physical states and determine their BRST invariant vertex operators.
In the supersymmetric case we reconstruct the super-multiplet structure. We
then compute some simple interactions, such as the decay rate of a massive
scalar or vector into two massless fermions. Finally we suggest an alternative
interpretation of the 750 GeV diphoton excess at LHC in terms of a light
massive string state, a replica of the Standard Model Higgs. | Source: | arXiv, 1601.7584 | Services: | Forum | Review | PDF | Favorites |
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