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

Session

Searches

1 Aug 2023, 13:40

Auditorium (50)

Conveners

Searches

• John Conway
• Mihoko Nojiri

93. Searches for boosted resonances (non-diboson) and semi-visible jets with the ATLAS detector

Mario Campanelli

01/08/2023, 13:40

Many new-physics signatures at the LHC produce highly boosted particles, leading to close-by objects in the detector and necessitating jet substructure techniques to disentangle the hadronic decay products. This talk will illustrate the use of these techniques in recent ATLAS searches for heavy W' and Z' resonances in top-bottom and di-top final states, as well as in searches for vector-like...

131. Searches for BSM particles in boosted final states at CMS

Lauren Hay

01/08/2023, 14:00

We present searches for new particles in final states with high boost at CMS. Results include searches for resonances such as, for example, heavy resonances coupling to multi-bosons, third-generation particles, leptoquarks or vector-like quarks. We focus on describing new results that use boosted reconstruction techniques for objects in the final state (including MET).

92. Search for new physics using unsupervised machine learning for anomaly detection in $\sqrt{s}$ = 13 TeV $pp$ collisions recorded by the ATLAS detector at the LHC

Elham E Khoda (University of Washington)

01/08/2023, 14:20

Searches for new resonances in two-body invariant masses are performed using an unsupervised anomaly detection technique in events produced in $pp$ collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector at the LHC. An autoencoder network is trained with 1% randomly selected collision events and anomalous regions are then defined which contain events with high...

119. Search for new phenomena in two-body invariant mass distributions using unsupervised machine learning for anomaly detection with the ATLAS detector

Wasikul Islam

01/08/2023, 14:40

Searches for new resonances in two-body invariant mass distributions are performed using an unsupervised anomaly detection technique in events produced in pp collisions at a center of mass energy of 13 TeV recorded by the ATLAS detector at the LHC. Studies are conducted in data containing at least one isolated lepton. An autoencoder network is trained with 1% randomly selected collision events...

117. Robust anomaly detection using NuRD

Dr Abhijith Gandrakota

01/08/2023, 15:00

Anomaly, or out-of-distribution, detection is a promising tool for aiding discoveries in particle physics. However, existing detection methods perform detection against only a single background process, primarily using boosted objects. Moreover, most algorithms can depend on nuisance features such as jet mass to falsely tag known physics as an anomaly or ignore new physics as an already known...