Two-pion Bose-Einstein correlations in $pp$ collisions at $\sqrt{s}=900$ GeV
Phys.Rev. D82 (2010) 052001, 2010.
The collaboration

Abstract (data abstract)
CERN-LHC. Measurement of two-pion correlation functions in P P collisions at a centre-of-mass energy of 900 GeV. As well as the measured correlation functions between like-sign and unlike-sign pions and the results of simulations thereof, the paper also presents derivations of the HBT radii for various charged multiplicity and KT regions which are also given in this record.