TY - SER AU - Aad,G. AU - Abdallah,J. AU - Chelkov,G.A. AU - Abbott,B. ED - Томский государственный университет TI - Two-particle Bose–Einstein correlations in pp collisions at √s = 0.9 and 7 TeV measured with the ATLAS detector KW - ATLAS, детектор KW - Большой адронный коллайдер KW - Бозе-Эйнштейна корреляции KW - столкновение частиц KW - статьи в журналах N1 - Библиогр.: 82 назв N2 - The paper presents studies of Bose-Einstein Correlations (BEC) for pairs of like-sign charged particles measured in the kinematic range pT> 100 MeV and |η|< 2.5 in proton--proton collisions at centre-of-mass energies of 0.9 and 7 TeV with the ATLAS detector at the CERN Large Hadron Collider. The integrated luminosities are approximately 7 μb−1, 190 μb−1 and 12.4 nb−1 for 0.9 TeV, 7 TeV minimum-bias and 7 TeV high-multiplicity data samples, respectively. The multiplicity dependence of the BEC parameters characterizing the correlation strength and the correlation source size are investigated for charged-particle multiplicities of up to 240. A saturation effect in the multiplicity dependence of the correlation source size is observed using the high-multiplicity 7 TeV data sample. The dependence of the BEC parameters on the average transverse momentum of the particle pair is also investigated UR - http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000536255 ER -