Publication

Observation of χcJ→ 3K0SK±π∓

2025

Abstract

By analyzing (2712.4±14.3)x106 Ψ(3686) events collected with the BESIII detector operating at the BEPCII collider, the decays χc0,1,2→ 3K0SK±π∓ are observed for the first time with statistical significances greater than 10σ. The branching fractions of these decays are determined to be B(χc0→ 3K0SK±π∓) = (7.95±0.50±0.65)x10-5, B(χc1→ 3K0SK±π∓) = (2.62±0.08±0.19)x10-4, B(χc2→ 3K0SK±π∓) = (1.72±0.07±0.15)x10-4, where the first uncertainties are statistical and the second systematic.

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2025

Abstract

Official source

Related concepts (32)

Statistical inference

Statistical inference is the process of using data analysis to infer properties of an underlying distribution of probability. Inferential statistical analysis infers properties of a population, for example by testing hypotheses and deriving estimates. It is assumed that the observed data set is sampled from a larger population. Inferential statistics can be contrasted with descriptive statistics. Descriptive statistics is solely concerned with properties of the observed data, and it does not rest on the assumption that the data come from a larger population.

Statistical hypothesis testing

A statistical hypothesis test is a method of statistical inference used to decide whether the data at hand sufficiently support a particular hypothesis. Hypothesis testing allows us to make probabilistic statements about population parameters. While hypothesis testing was popularized early in the 20th century, early forms were used in the 1700s. The first use is credited to John Arbuthnot (1710), followed by Pierre-Simon Laplace (1770s), in analyzing the human sex ratio at birth; see .

Statistics

Statistics (from German: Statistik, () "description of a state, a country") is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data. In applying statistics to a scientific, industrial, or social problem, it is conventional to begin with a statistical population or a statistical model to be studied. Populations can be diverse groups of people or objects such as "all people living in a country" or "every atom composing a crystal".

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