Abstract
We derive a simple formula relating the cross section for light cluster production (defined via a coalescence factor) to the two-proton correlation function measured in heavy-ion collisions. The formula generalises earlier coalescence-correlation relations found by Scheibl & Heinz and by Mrowczynski for Gaussian source models. It motivates joint experimental analyses of Hanbury Brown-Twiss (HBT) and cluster yield measurements in existing and future data sets.
Highlights
The Large Hadron Collider (LHC) made available a diverse data set of production cross sections of light nuclear clusters such as deuterons (D), helions (3He), and tritons (3H) [1,2]
The LHC brought progress in femtoscopy, the study of the momentum-space correlations of particles emitted in hadronic collisions [5,6,7,8,9,10,11,12]
In this paper we consider an interesting feature in the data [23]: the anticorrelation between the source homogeneity volume, probed in femtoscopy, and the coalescence factor of nuclear clusters
Summary
The Large Hadron Collider (LHC) made available a diverse data set of production cross sections of light nuclear clusters such as deuterons (D), helions (3He), and tritons (3H) [1,2]. The LHC brought progress in femtoscopy, the study of the momentum-space correlations of particles emitted in hadronic collisions [5,6,7,8,9,10,11,12].1 These measurements are a source of information on the state produced in heavy-ion collisions [13,14,15,16,17,18,19,20,21]. In this paper we consider an interesting feature in the data [23]: the anticorrelation between the source homogeneity volume, probed in femtoscopy, and the coalescence factor of nuclear clusters This correlation was predicted two decades ago in a seminal work by Scheibl & Heinz [17].
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