Forward-backward rapidity correlations in a two-step scenario

P. Brogueira; J. Dias de Deus

doi:10.1016/j.physletb.2007.01.076

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arXiv · hep-ph/0611329

Forward-backward rapidity correlations in a two-step scenario

P. Brogueira·J. Dias de Deus

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Abstract

We argue that two-step models, like String and Glasma models, with creation first of sources extended in rapidity that after locally decay into particles, lead to long range forward-backward correlations due to fluctuations in the number or the colour of the sources, and to a similar expression for the {\it F-B} correlation parameter $b$. In the simplest String percolation scenario, $b$ increases with centrality or the number of participating nucleons. However, asymptotically it decreases with energy. This is different from the Glasma model where $b$ increases with both, centrality and energy.

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P. Brogueira, J. Dias de Deus. 2007-01-10. Forward-backward rapidity correlations in a two-step scenario. https://doi.org/10.1016/j.physletb.2007.01.076

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