Femtoscopy of pp collisions at root s=0.9 and 7 TeV at the LHC with two-pion Bose-Einstein correlations

0374509 - ÚJF 2012 RIV US eng J - Journal Article
Aamodt, K. - Quintana, A.A. - Adamová, Dagmar - Bielčík, J. - Bielčíková, Jana - Kushpil, Vasilij - Mareš, Jiří A. - Polák, Karel - Šumbera, Michal - Závada, Petr … Total 886 authors
Femtoscopy of pp collisions at root s=0.9 and 7 TeV at the LHC with two-pion Bose-Einstein correlations.
Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 84, č. 11 (2011), 112004/1-112004/22. ISSN 1550-7998
Institutional research plan: CEZ:AV0Z10480505; CEZ:AV0Z10100521
Keywords : heavy-ion collisions * PION INTERFEROMETRY * ENERGIES
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
Impact factor: 4.558, year: 2011

We report on the high statistics two-pion correlation functions from pp collisions at root s = 0.9 TeV and root s = 7 TeV, measured by the ALICE experiment at the Large Hadron Collider. The correlation functions as well as the extracted source radii scale with event multiplicity and pair momentum. When analyzed in the same multiplicity and pair transverse momentum range, the correlation is similar at the two collision energies. A three-dimensional femtoscopic analysis shows an increase of the emission zone with increasing event multiplicity as well as decreasing homogeneity lengths with increasing transverse momentum.
Permanent Link: http://hdl.handle.net/11104/0207415