10th International Workshop on Boosted Object Phenomenology, Reconstruction and Searches in HEP (BOOST 2018)

Session

Performance

S1

Jul 16, 2018, 2:00 PM

Charpak Amphitheater (Paris)

45. Jet and Missing Momentum Reconstruction and Calibration in ATLAS

Christopher Young (CERN)

7/16/18, 2:00 PM

Talk

Jets form one of the most important quantities to reconstruct at a hadron collider and many searches and measurements are dominated by the uncertainties on the jet energy scale. The procedure of calibrating ATLAS Anti-kt R=0.4 jets using in situ techniques and extrapolation to other radii is presented. Missing transverse momentum (MET) is used to infer the presence of high transverse momentum...

24. Jet+MET performance in CMS

Viola Sordini (Centre National de la Recherche Scientifique (FR))

7/16/18, 2:25 PM

Talk

The talk will report on the most recent studies concerning the performance of jet and missing transverse energy reconstruction at CMS

46. Reconstruction and Calibration of Large-R jets and In-situ techniques for their Calibration

Ayana Tamu Arce (Duke University (US))

7/16/18, 2:50 PM

Talk

Searches for new heavy resonances, supersymmetric particles, heavy vector quarks, and measurements of highly boosted Standard Model processes increasingly rely on large radius jets to reconstruct hadronically decaying boosted objects. The reconstruction of these along with their calibration of both mass and transverse momentum will be discussed. In situ techniques are then used to derive...

18. Triggering boosted objects at 25 ns at CMS

Jennifer Ngadiuba (CERN)

7/16/18, 3:15 PM

Talk

With the High-Luminosity (HL) LHC ahead, bringing the discrimination power of jet-substructure-based jet tagging algorithms to Level 1 trigger selection will be a major asset to guarantee an optimal usage of the limited trigger resources at downstream steps. To do so, the CMS experiment is intensively investigating the possibility of running the particle-flow (PF) reconstruction algorithm on...

48. Inputs, grooming and track assisted techniques for jet substructure

Sanmay Ganguly (Weizmann Institute of Science (IL))

7/16/18, 3:40 PM

Talk

In order to mitigate the effect of pile-up and to improve the resolution of substructure variables for highly boosted hadronically decaying particles various grooming techniques and jet inputs are evaluated. Track assisted techniques are also introduced to improve over the calorimeter limited granularity in the highest boosted regime. Boosted Higgs bosons decaying into two collimated b-jets...

16. Pileup mitigation for jets with Constituent Subtraction

Peter Berta (Johannes Gutenberg Universitaet Mainz (DE))

7/17/18, 9:00 AM

Talk

Pileup has a significant impact on jet reconstruction and on the ability to identify hadronically decaying boosted objects. The Constituent Subtraction is a pileup mitigation method which operates at the level of jet or event constituents and which is successfully used by experiments at the LHC. This talk explores its application on the event constituents before jet clustering. Several...

23. Pileup mitigation in CMS

Anna Benecke (Hamburg University (DE))

7/17/18, 9:25 AM

Talk

The talk will report on the studies and techniques developed at CMS for the pileup mitigation.

47. Tagging of Hadronically Decaying Particles and the Determination of boosted tagger efficiencies in ATLAS

Andreas Sogaard (University of Edinburgh (GB))

7/17/18, 9:50 AM

Talk

Tagging algorithms that discriminate between massive large-R QCD jets and large-R jets that capture the decays of W/Z boson or top quarks are developed. The methods of tagging these objects are described. In order to improve the boosted taggers performance and the precision on the tagging efficiency and rejection new in-situ techniques are applied. The precision obtained by applying the...

21. Tagger performance in data

Cristina Ana Mantilla Suarez (Johns Hopkins University (US))

7/17/18, 10:15 AM

Talk

The talk will report on most recent results on tagger performance in data by the CMS collaboration