1. V. Khachatryan et al. [CMS Collaboration], JHEP 1009, 091 (2010).
arXiv:1009.4122
[hep-ex]
2. V. Khachatryan, Phys. Rev. Lett. 116, 172302 (2016).
arXiv:1510.03068
[nucl-ex]
3. G. Aad et al. [ATLAS Collaboration], Phys. Rev. Lett. 116, 172301 (2016).
arXiv:1509.04776
[hep-ex]
4. S. Chatrchyan et al. [CMS Collaboration], Phys. Lett. B 718, 795 (2013).
arXiv:1210.5482
[nucl-ex]
5. B. Abelev et al. [ALICE Collaboration], Phys. Lett. B 719, 29 (2013).
arXiv:1212.2001
[nucl-ex]