About
Jet substructure represents a cornerstone in the on-going endeavor to pinpoint the effect of a hot, thermal medium, namely the QGP, on QCD dynamics. In this talk, based on [1], I will present a new set of jet substructure observables and an associated grooming technique, dubbed "dynamical grooming". This procedure is rooted on identifying the hardest splitting in an angular ordered shower and discarding prior splittings that occur at larger angles. First, I will use p+p collisions to benchmark the method with pQCD calculations through the computation of the Sudakov form factor at modified leading-log accuracy in the context of vetoed showers. I will compare the analytic properties of the dynamically tagged splitting such as its momentum sharing fraction with Monte-Carlo simulations. In addition, the resilience of the method to non-perturbative effects together with its performance on quark/gluon discrimination and boosted W/t/H tagging will be assessed. Finally, predictions for the dynamically groomed $z_{g}$ in heavy-ion collisions at LHC energies will be presented within a probabilistic picture of energy loss.
[1] arXiv:1911.00375.
0:00:00 Slide 1
0:01:56 Slide 2
0:03:51 Slide 3
0:05:46 Slide 4
0:07:41 Slide 5
0:09:37 Slide 6
0:11:32 Slide 7
0:13:27 Slide 8
0:15:22 Slide 9
0:17:17 Slide 10
The talk
Credits and licence
- Institution
- CERN
- Department
- Conferences
- Speaker
- Alba Soto Ontoso
- Year
- 2020
- Language
- English
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
- CERN gives no rating. Invisible Network shows it to Teens profiles and older, judged from what the source says about it. How courses are placed