1. G. Aad et al., [ATLAS and CMS Collaborations], Phys. Rev. Lett. 114, 191803 (2015).
arXiv:1503.07589
[hep-ex]
2. E. Fullana, M.A. Sanchis-Lozano, Phys. Lett. B 653, 67 (2007).
arXiv:hep-ph/0702190
3. D. Becirevic, B. Melic, M. Patra, O. Sumensari.
arXiv:1705.01112
[hep-ph]
4. L. Liu et al., [Hadron Spectrum Collaboration], JHEP 1207, 126 (2012).
arXiv:1204.5425
[hep-ph]
5. C.B. Lang, L. Leskovec, D. Mohler, S. Prelovsek, JHEP 1509, 089 (2015).
arXiv:1503.05363
[hep-lat]