Conveners
Plenary Session Monday (1)
- Ianna Osborne (Princeton University)
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The ROOT software package features automatic and dynamic Python bindings that provide access to its powerful and performant C++ core. With the growing adoption of Python in the HEP community, ROOT continues to evolve to offer a more intuitive and Pythonic user experience.
Recent developments make key components of the framework more accessible and interoperable from Python. This includes...
RNTuple is a new columnar data storage format with a variety of improvements over TTree. The first stable version of the specification became available earlier this year, so the transition to RNTuples has now begun. The Uproot Python library aims to provide a much better support for reading and writing RNTuples than it did for TTrees, thanks to its modern and simple design. Uproot already...
uproot-custom is an extension of Uproot that allows users to define custom behaviors when reading branch data from ROOT files. This capability is particularly useful when handling classes with overloaded Streamer methods or when specific data transformations are required during the reading process. By being implemented in C++ and Python, uproot-custom ensures both high performance and...
CO2-based two-phase pumped loop systems are now the de-facto solution for Detector cooling at CERN. The scope of these systems grows ever larger, and with it, so does the complexity of the underlying technology
For the past decade-and-a-half, Matlab has been our one-stop shop for simulations, post-processing, data analyses and data visualisations. Recently, we have begun a piecemeal...
The CMS Experiment introduced a new lightweight format for physics analysis, NanoAOD, during Run 2. Stored as ROOT TTrees, NanoAOD can be read directly with ROOT or with Python libraries such as uproot. Current CMS event displays rely on the larger MiniAOD data tier, which requires CMS-specific software and resources and includes information not available in NanoAOD.
ISpy NanoAOD is a...
The PyLHE library (Python LHE interface) has seen major improvements since 2024. Recent releases introduced LHE file writing (v0.9.0) and extended event weight support for POWHEG (v0.8.0). Event weights, when available, are now included in the output Awkward Arrays, and systematic tests are performed using LHE files from widely used general-purpose Monte Carlo event generators. In addition to...
This talk explores the results of my recent project as an IRIS-HEP fellow. I was working on improving the coffea schemas by simplifying how they work internally. It eventually transitioned into making a new package that would include all the simplified schemas, separated from coffea. Eventually coffea will use them instead of its old schemas. This new package was given the name 'zipper' and...
