Systematics on two-body mass measurements and the $Λ$-baryon mass

Q: What type of study is this?

This is a Quantitative Study study.

C. W. Chu; Yiming Liu; Matthew Needham

doi:10.48550/arxiv.2509.26130

September 30, 2025Open Access

Systematics on two-body mass measurements and the $Λ$-baryon mass

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Key Points

The study shows how detector-related uncertainties affect the determination of parent particle mass in two-body decays.
Biases related to the sum and difference of daughter particle momenta significantly influence mass measurements.
The approach applied to $Λ$ hyperon mass measurements demonstrates the importance of accounting for biases.
Understanding these biases is crucial for improving mass determinations in particle physics.

Implication

Analysis reveals biases in parent particle mass determination in two-body decays, indicating detector uncertainties impact measurements.

Abstract

The effect of detector-related uncertainties on the determination of the parent particle mass in two-body decays is described. Studies of the biases versus the sum and difference of the daughter particle momenta can be used to determine biases on the mass. The approach is illustrated for the case of measuring the $Λ$ hyperon mass.

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Cite This Study

Chu et al. (2025) studied this question.

synapsesocial.com/papers/68f5fcd68d54a28a75cf1f4d https://doi.org/10.48550/arxiv.2509.26130

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Systematics on two-body mass measurements and the $Λ$-baryon mass

Key Points

Implication

Abstract

Discussion

Cite This Study

Systematics on two-body mass measurements and the $Λ$-baryon mass

Key Points

Implication

Abstract

Discussion

Cite This Study

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