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Jad Mathieu Sardain (University of Arizona)7/28/25, 5:20 PMPoster Presentation
The Lund jet plane is a representation of the emissions within a jet, where each point corresponds to an emission. Hard and soft emissions, as well as colinear and wide-angle emissions, correspond to different regions of the Lund plane and are populated differently by jets with different origins. This means the Lund plane can be used for jet tagging. We present previous studies done in ATLAS...
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Samuel Ferraro (Brown University)7/28/25, 5:21 PMPoster Presentation
A muon collider combines high center-of-mass energy, clean collision environments, and compact designs into a tool for high energy physics. This study addresses the critical challenge of the beam-induced background (BIB), a byproduct of muon decay that complicates event reconstruction and impacts detector performance. We explore software-based solutions, including algorithms like SoftKiller...
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Umar Sohail Qureshi (Vanderbilt University)7/28/25, 5:22 PMPoster Presentation
The identity of dark matter (DM) is one of the most profound questions at the interface of particle physics and cosmology. Weakly interacting massive particles (WIMPs) are promising DM candidates that explain the observed relic density and are under investigation in direct and indirect searches. Within the context of R-parity conserving supersymmetric extensions of the standard model, the WIMP...
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Rishabh Jain (Brown University)7/28/25, 5:23 PMPoster Presentation
As the accuracy of experimental results increase in high energy physics, so too must the precision of Monte Carlo simulations. Currently, event generation at next to leading order (NLO) accuracy and beyond results in a number of negative weighted events. Not only are these unphysical, but they also drive up the computational load and can be pathological when used in machine learning analyses....
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Taikan Suehara (ICEPP, The University of Tokyo)7/28/25, 5:24 PMPoster Presentation
In hadron collider experiments, it is essential to accurately reconstruct particles from detector information in order to gain a deeper understanding of a various phenomena. In particular, since detectors such as ATLAS have limited spatial granularity in the calorimeter cell, it is challenging to reconstruct particles within jets.
To mitigate this difficulty, we are developing a Particle...
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Tatsuki Murata (University of Tokyo)7/28/25, 5:25 PMPoster Presentation
Particle flow (PFlow) is one of the key detector concepts of future Higgs factories. It went back to more than 15 years ago that a proposal of highly-granular calorimeters with PFlow algorithm giving almost twice better jet energy resolution than traditional calorimetry was published.
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The expected performance has not significantly changed since then while the hardware studies have been... -
Luke Lu (Vanderbilt University), Yu-Chen Chen (Massachusetts Institute of Technology)7/28/25, 5:26 PMPoster Presentation
Many modern jet clustering algorithms, for example, the anti-$k_T$ algorithm, were proposed after LEP had concluded. This poses a unique opportunity and challenge in order to analyze the archived $e^+e^-$ data from the LEP era. In this poster, we will discuss the methodologies to calibrate jets developed specifically for $e^+e^-$ collisions, as well as a discussion on jet observables that this...
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Dawei Fu (Peking University)7/28/25, 5:27 PMPoster Presentation
A search for high-mass resonances decaying into a gluon, g, and two W bosons is presented. A Kaluza-Klein gluon, $g_{KK}$, decaying in cascade via a scalar radion R, $g_{KK} \to gR \to gWW$, is considered. The final state consists of three large-radius jets, two of which contain the products of hadronically decaying W bosons, and the third one the hadronization products of the gluon. The...
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Grant Whitman (Brown University)7/28/25, 5:28 PMPoster Presentation
Splitting functions are the factorized forms of collinear dynamics in perturbative QCD, used to model complex parton showers. We compute the massive triple-collinear splitting kernels by layering scalar (semi-classical) interaction and fermionic interference terms, and compare to existing results for massive and massless splittings. This decomposition method enables systematic integration of...
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Ema Dimitrova7/28/25, 5:29 PMPoster Presentation
This study investigates the performance of SoftKiller, a pileup mitigation algorithm, in high-pileup conditions using a Julia-based implementation. The SoftKiller algorithm aims to mitigate the effects of pileup by removing low-momentum particles through a process involving grid partitioning, cell sum computation, thresholding, soft removal, and clustering. The Julia implementation of...
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