Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 82, Issue 5, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-022-10407-9
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Funding
- Estonian Research Council [PRG445]
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Monte Carlo simulations are commonly used in modern high-energy physics experiments, but producing sufficient MC samples can be challenging due to computational limitations. This paper presents a method called stitching for combining overlapping MC samples, providing a solution to this problem.
Monte Carlo (MC) simulations are extensively used for various purposes in modern high-energy physics (HEP) experiments. Precision measurements of established Standard Model processes or searches for new physics often require the collection of vast amounts of data. It is often difficult to produce MC samples containing an adequate number of events to allow for a meaningful comparison with the data, as substantial computing resources are required to produce and store such samples. One solution often employed when producing MC samples for HEP experiments is to partition the phase space of particle interactions into multiple regions and produce the MC samples separately for each region. This approach allows to adapt the size of the MC samples to the needs of physics analyses that are performed in these regions. In this paper we present a procedure for combining MC samples that overlap in phase space. The procedure is based on applying suitably chosen weights to the simulated events. We refer to the procedure as stitching. The paper includes different examples for applying the procedure to simulated proton-proton collisions at the CERN Large Hadron Collider.
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