Two-particle BoseEinstein correlations in pp collisions at √s = 0.9 and 7 TeV measured with the ATLAS detector
- Allbrooke, Benedict
- Asquith, Lily
- Cerri, Alessandro
- Chavez Barajas, Carlos
- De Santo, Antonella
- Potter, Tina
- Salvatore, Fabrizio
- Suruliz, Kerim
- Sutton, Mark
- Vivarelli, Iacopo
- Santoyo Castillo, Itzebelt
- The ATLAS Collaboration, et al
DOIAbstract
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 parameter is observ...
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