@Article{Roca+Oset2016,
author="Roca, L.
and Oset, E.",
title="On the hidden charm pentaquarks in Lambda(b) -> J/psi K- p decay",
journal="European Physical Journal C",
year="2016",
publisher="Springer",
volume="76",
number="11",
pages="591 - 12pp",
abstract="In a previous work we presented a theoretical analysis of the Lambda(b) -> J/psi K- p reaction based on which a recent experiment by the LHCb collaboration at CERN claimed the existence of two hidden charm pentaquarks, P-c(4380)(+) and P-c(4450)(+). In that work we focused only on the Lambda(1405) and P-c(4450)(+) signals and discussed the possible explanation of this pentaquark state within the picture of a dynamical meson-baryon molecule made up mostly from (D) over bar*Sigma(c) and (D) over bar*Sigma(c)* components. In the present work we improve upon the previous one by considering the total K- p and J/psi p data including all the relevant resonances contributing to the spectra, and discuss the possible nature of both P-c(4380)(+) and P-c(4450)(+). We also discuss several important topics, like the effect of the contact term in the reaction, the viability of reproducing the data without the P-c(4380)(+) and the possible quantum number assignment to these pentaquarks.",
optnote="WOS:000399930700001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3065), last updated on Thu, 11 May 2017 11:00:44 +0000",
issn="1434-6044",
doi="10.1140/epjc/s10052-016-4407-z",
opturl="http://arxiv.org/abs/1602.06791",
opturl="https://doi.org/10.1140/epjc/s10052-016-4407-z",
archivePrefix="arXiv",
eprint="1602.06791",
language="English"
}