Decomposing Transverse Momentum Balance Contributions for Quenched Jets in PbPb Collisions at √sNN=2.76 TeV

Journal of High Energy Physics 2016
Vardan Khachatryan, A.M. Sirunyan, Viesturs Veckalns

Interactions between jets and the quark-gluon plasma produced in heavy ion collisions are studied via the angular distributions of summed charged-particle transverse momenta (pT) with respect to both the leading and subleading jet axes in high-pT dijet events. The contributions of charged particles in different momentum ranges to the overall event pT balance are decomposed into short-range jet peaks and a long-range azimuthal asymmetry in charged-particle pT. The results for PbPb collisions are compared to those in pp collisions using data collected in 2011 and 2013, at collision energy sNN=2.76 TeV with integrated luminosities of 166 μb−1 and 5.3 pb−1, respectively, by the CMS experiment at the LHC. Measurements are presented as functions of PbPb collision centrality, charged-particle pT, relative azimuth, and radial distance from the jet axis for balanced and unbalanced dijets.[Figure not available: see fulltext.]

Atslēgas vārdi
Heavy Ion Experiments | Heavy-ion collision | Jet substructure | Quark gluon plasma
DOI
10.1007/JHEP11(2016)055
Hipersaite
http://link.springer.com/article/10.1007%2FJHEP11%282016%29055

Khachatryan, V., Sirunyan, A., Veckalns, V. et al. Decomposing Transverse Momentum Balance Contributions for Quenched Jets in PbPb Collisions at √sNN=2.76 TeV. Journal of High Energy Physics, 2016, Vol.2016, Iss.11, 1.-42.lpp. ISSN 1126-6708. e-ISSN 1029-8479. Pieejams: doi:10.1007/JHEP11(2016)055

Publikācijas valoda
English (en)