A next-to-leading-logarithmic factorization and resummation for the soft drop groomed jet radius, including non-global and clustering logarithms, with predictions for the LHC and RHIC.
Measurement of the Shared Momentum Fraction $z_g$ using Jet Reconstruction in p+p and Au+Au Collisions with STAR
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
One key difference in current energy loss models lies in the treatment of the Altarelli-Parisi, AP, splitting functions. It has been shown that the shared momentum fraction, henceforth called Jet Splitting Function $z_g$ as determined by the SoftDrop grooming process can be made a Sudakov-safe measurement of the symmetrized AP functions in p+p collisions. The STAR collaboration presents the first $z_g$ measurements at $\sqrt{s_{NN}}=200$ GeV in p+p and Au+Au collisions, where in Au+Au we use the specific di-jet selection introduced in our previous momentum imbalance measurement. For a jet resolution parameter of $R=0.4$, these di-jet pairs were found to be significantly imbalanced with respect to p+p, yet regained balance when all soft constituents were included. We find that within uncertainties there are no signs of a modified Jet Splitting Function on trigger or recoil side of this di-jet selection.
fields
hep-ph 1years
2019 1verdicts
ACCEPT 1representative citing papers
citing papers explorer
-
The soft drop groomed jet radius at NLL
A next-to-leading-logarithmic factorization and resummation for the soft drop groomed jet radius, including non-global and clustering logarithms, with predictions for the LHC and RHIC.