Speaker
Prof.
Ahmed Ali
(DESY (DE))
Description
We compute the transverse energy-energy correlation (EEC) and its asymmetry (AEEC) in next-to-leading order (NLO) in $\alpha_s$ in proton-proton collisions at the LHC with the center-of-mass energy $E_{\rm c.m.}=7$ TeV. We show that the transverse EEC and the AEEC distributions are insensitive to the factorization- and renormalization scales, the underlying minimum bias events, and the structure functions. Hence they can be used to precisely test QCD in hadron colliders and determine $\alpha_s$. We illustrate this technique by defining jets using the anti-$k_T$ jet algorithm and an event selection procedure typically used in the analysis of jets at the LHC and show the $\alpha_s$-dependence of the transverse EEC and the AEEC in the range $0.11 \leq \alpha_s(M_Z) \leq 0.13$.
Author
Prof.
Ahmed Ali
(DESY (DE))
Co-authors
Prof.
Fernando Barreiro
(UAM, Madrid)
Dr
Wei Wang
(DESY, Hamburg)
