15th International Workshop on Boosted Object Phenomenology, Reconstruction, Measurements, and Searches at Colliders

Session

Multidifferential Measurements

2 Aug 2023, 11:20

Auditorium (50)

Conveners

Multidifferential Measurements

• Jennifer Roloff
• Peter Jacobs

108. Multi-differential Jet Substructure Measurement in electron-proton Collisions

Vinicius Mikuni

02/08/2023, 11:20

Jet angularities provide a detailed representation of the radiation pattern within high energy quark and gluon jets. While there has been major advances in jet substructure studies at hadron colliders, the precision achievable by collisions involving electrons is superior, since several of the complications from hadron colliders are absent.

In this contribution jets are analyzed which were...

123. Studying jet substructure and hadronization at LHCb

Ibrahim Chahrour (University of Michigan)

02/08/2023, 11:40

After a hard scattering event, an outgoing parton will radiate gluons which fragment into final-state hadrons. To study the radiation patterns of light and heavy partons, we look at the Lund jet plane (LJP), an observable where various types of emissions such as soft-collinear, hard-collinear, and non-perturbative emissions as well as initial-state radiation and the underlying event can be...

94. Probing the parton shower with multi-differential jet substructure measurements in $pp$ collisions at STAR

Youqi Song (Yale University)

02/08/2023, 12:00

Jets are collimated sprays of final-state particles produced from initial high-momentum-transfer partonic scatterings in particle collisions. Since jets are multi-scale objects that connect asymptotically free partons to confined hadrons, jet substructure measurements can provide insight into the parton evolution and the ensuing hadronization processes. Compared to the jets at the LHC, jets...

101. Probing higher order DGLAP evolution with Energy Correlators and OmniFold

Jingjing Pan (Yale University)

02/08/2023, 12:20

Modern machine learning (ML) techniques allow us to rethink how the the high dimensional features of jets can be optimally used to probe the strong interaction. Recently a new class of jet substructure observables, the energy correlators (EECs), have been introduced to study the statistical properties inside jets and enable first principle ways to do physics in the complicated LHC environment....

113. Machine learning-assisted measurement azimuthal angular asymmetry of soft gluon radiation in positron-proton collisions

Fernando Torales Acosta

02/08/2023, 12:40

At leading order in positron-proton collisions, a lepton scatters off a quark through virtual photon exchange, producing a quark jet and scattered lepton in the final state. The total transverse momentum of the system is typically small, but deviations from zero can be attributed to perturbative initial and final state radiations in the form of soft gluon radiation when the transverse momentum...

121. Deconvolving Detector Effects for Distribution Moments

Krish Desai

Deconvolving (‘unfolding’) detector distortions is a critical step in the comparison of cross section measurements with theoretical predictions in particle and nuclear physics. However, most extant unfolding approaches require histogram binning while many theoretical predictions are at the level of moments. We develop a new approach to directly unfold distribution moments as a function of...