Revisiting the pentaquark episode for lattice QCD

Details Revisiting the pentaquark episode for lattice QCD Revisiting the pentaquark episode for lattice QCD

2007-11-05

arxiv.org/abs/0711.0566v1

PoSLAT2007:136,2007

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 4 figures, presented at Lattice 2007, Regensburg, Germany, 30 July - 4 August 2007

Scientific paper

This work revisits the pentaquark episode, particularly in reference to lattice QCD, to collect in one place the lessons that have been or should be learnt. This also examines whether, and if yes, where, there might be any prospect for future studies of pentaquarks and the role of lattice QCD in it. Tests such as volume dependence, and hybrid boundary conditions to distinguish bound and scattering states are identified as the positives to take forward from this episode. On the other hand it is also observed that pentaquarks with heavier quark content and in the $SU(3)_f$ limit may still be worth not forgetting, and in that case lattice QCD may have an important role to play.

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