August 27, 2017 to September 1, 2017
Other Institutes
Europe/Zurich timezone

Energy-energy correlation at NNLL+NNLO

Aug 29, 2017, 4:30 PM


Hard QCD and EW Hard QCD and EW


Zoltán Tulipánt (University of Debrecen)


In this talk we consider the back-to-back region of the
energy-energy correlation in $e^+e^-$ collisions and present the matching of
the next-to-next-to-leading logarithmic (NNLL) approximation with the recently
computed fixed next-to-next-to-leading order (NNLO) corrections. We perform the
matching in the log R scheme. We compare our results to precise LEP and SLC data,
and find that the inclusion of the NNLO corrections has a sizeable impact on the
extracted value of $\alpha_S(M_Z)$.

Primary author

Zoltán Tulipánt (University of Debrecen)


Adam Kardos (University of Debrecen) Gabor Somogyi (University of Debrecen (HU))

Presentation materials