Abstract
First measurements of the azimuthal anisotropy of neutral pions produced in PbPb collisions at a center-of-mass energy of SNN = 2.76 TeV are presented. The amplitudes of the second Fourier component (ν2) of the π0 azimuthal distributions are extracted using an event-plane technique. The values of ν2 are studied as a function of the neutral pion transverse momentum (pT) for different classes of collision centrality in the kinematic range 1.6 < pT < 8.0 GeV/c within the pseudorapidity interval |η| < 0.8. The CMS measurements of ν2(pT) are similar to previously reported π0 azimuthal anisotropy results from SNN = 200 GeV AuAu collisions at RHIC, despite a factor of ∼14 increase in the center-of-mass energy. In the momentum range 2.5 < pT < 5.0 GeV/c, the neutral pion anisotropies are found to be smaller than those observed by CMS for inclusive charged particles.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
