International Workshop on Future Linear Colliders, LCWS2024

Session

Software, Reconstruction, Computing

9 Jul 2024, 14:00

The University of Tokyo, Japan

Conveners

Software, Reconstruction, Computing: 1

• Hiroaki Ono

Software, Reconstruction, Computing: 2

• Carsten Hensel (CBPF - Brazilian Center for Physics Research (BR))

Software, Reconstruction, Computing: 3

• Ryu Sawada (University of Tokyo (JP))

97. Streamlined jet tagging network assisted by jet prong structure

Dr Ahmed Hammad (KEK)

09/07/2024, 14:00

Software, Reconstruction, Computing

Oral presentation (in person)

Attention-based transformer models have become increasingly prevalent in collider analysis, offering enhanced performance for tasks such as jet tagging. However, they are computationally intensive and require substantial data for training. In this paper, we introduce a new jet classification network using an MLP mixer, where two subsequent MLP operations serve to transform particle and feature...

190. Jet origin identification for electron positron Higgs factory

Manqi RUAN (IHEP-LLR/CERN)

09/07/2024, 14:20

Software, Reconstruction, Computing

Oral presentation (in person)

To enhance the scientific discovery power of high-energy collider experiments, we propose and realize the concept of jet origin identification that categorizes jets into 5 quark species (b, c, s, u, d), 5 anti-quarks (¯b, ¯c, ¯s, ¯u, ¯ d), and the gluon. Using state-of-the-art algorithms and simulated ν¯νH,H →jj events at 240 GeV center-of-mass energy at the electron-positron Higgs factory,...

162. Application of Particle Transformer to quark flavor tagging in the ILC project

Risako Tagami (University of Tokyo (JP))

09/07/2024, 14:40

Software, Reconstruction, Computing

Oral presentation (remote)

International Linear Collider (ILC) is a next-generation e+e- linear collider to explore Beyond-Standard-Models by precise measurements of Higgs bosons. Jet flavor tagging plays a vital role in the ILC project by identification of H->bb,cc,gg,ss to measure Higgs coupling constants and of HH->bbbb and bbWW which are the main channels to measure the Higgs self-coupling constant.
Jet Flavor...

158. Classifying importance regions in Monte Carlo simulations with machine learning

Raymundo Ramos (Korea Institute for Advanced Study)

10/07/2024, 11:00

Software, Reconstruction, Computing

Oral presentation (in person)

In this work, we attempt to classify regions in a multidimensional parameter space according to their importance during a simulation. Considering that the parameter space could be high dimensional and the simulated process could result in arbitrary shapes, we involve a neural network in the process of guessing such shapes without running the full simulation for every point. We illustrate the...

163. Development of particle flow algorithm with GNN for Higgs factories

Tatsuki Murata

10/07/2024, 11:20

Software, Reconstruction, Computing

Oral presentation (in person)

Particle flow plays an important role in precise measurement of Higgs bosons at future lepton colliders such as ILC and FCCee. Various detector concepts are designed to maximize the effect of particle flow to be able to separate each particle s inside jets and improve the resolutions. For the standard particle flow algorithm, PandoraPFA is used for long in ILC studies. It is a multi-step...

100. Impact of NLO QCD on Key Physics Processes at Future Higgs Factories

Zhijie Zhao (DESY)

10/07/2024, 11:40

Software, Reconstruction, Computing

Oral presentation (in person)

The majority of Monte-Carlo (MC) simulation campaigns for future Higgs factories has so far been based on the leading-order (LO) matrix elements provided by Whizard 1.95,
followed by parton shower and hadronization in Pythia6,
using the tune of the OPAL experiment at LEP.
In this contribution, we test the next-to-leading-order (NLO) mode of Whizard.
NLO events of $e^{+}{e}^{-}\to q\overline{q}$...

106. Finding kink signatures of LLPs in TPC at ILC

Jurina Nakajima (SOKENDAI/KEK)

10/07/2024, 14:00

Software, Reconstruction, Computing

Oral presentation (in person)

Some types of LLPs can be indentified by kinked tracks. The Time Projection Chamber (TPC) being designed for ILD at ILC provides almost continuous tracking. This should give excellent potential for kink finding. I will review the current kink finder algorithm, and present a new kink finding method.

192. Towards production readiness with the Key4hep software stack for future colliders

Thomas Madlener (Deutsches Elektronen-Synchrotron (DE))

10/07/2024, 14:20

Software, Reconstruction, Computing

Oral presentation (remote)

Physics studies for future colliders require a reliable software environment. For many years this has been delivered by iLCSoft for the linear collider communities. In the last five years a common effort of several communities, including ILC, CLIC, FCC and CEPC, have collaborated on the Key4hep software stack to deliver a common software stack for all future collider communities. This software...

196. Fast Timing for Particle ID

Jenny List (Deutsches Elektronen-Synchrotron (DE))

10/07/2024, 14:40

Software, Reconstruction, Computing

Oral presentation (in person)

The identification of certain charged hadron species, e.g. Kaons and protons, plays an important role in many physics analyses. Time-of-flight measurements can contribute to identifying these particles if both the length of the flight path as well as the time of arrival can be determined with sufficient precision. This contribution will discuss the recent progress on both aspects, and in...