@article{106616, author = {Vardan Khachatryan and others}, title = {Search for long-lived particles that decay into final states containing two electrons or two muons in proton-proton collisions at $\sqrts =$ 8 TeV}, year = {2015}, journal = {Phys. Rev.}, volume = {D91}, pages = {052012}, doi = {10.1103/PhysRevD.91.052012}, language = {eng}, }