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arxiv: 1508.00295 · v2 · pith:NOJRJ55Fnew · submitted 2015-08-03 · ✦ hep-ph · nucl-th

The observation of light nuclei at ALICE and the X(3872) conundrum

A. Esposito , A.L. Guerrieri , L. Maiani , F. Piccinini , A. Pilloni , A.D. Polosa , V. Riquer This is my paper
classification ✦ hep-ph nucl-th
keywords productioncollisionslightnucleialicecrosssectionsbound
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The new data reported by ALICE on the production of light nuclei with pT < 10 GeV in Pb-Pb collisions at sqrt(s_NN) = 2.76 TeV are used to compute an order-of-magnitude estimate of the expected production cross sections of light nuclei in proton-proton collisions at high transverse momenta. We compare the hypertriton, helium-3 and deuteron production cross sections to that of X(3872), measured in prompt pp collisions by CMS. The results we find suggest a different production mechanism for the X(3872), making questionable any loosely bound molecule interpretation.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Hadronic Molecules and $\chi_{cJ}(2P)$ Coupled States

    hep-ph 2025-07 unverdicted novelty 4.0

    A coupled-channel model mixing χ_cJ(2P) cores with D(*)D(*) hadrons describes X(3872) as mostly molecular while X(3860) and Z(3930) have larger compact components and predicts a 0++ state.