Novel Interpretation of the 'Theta(+)(1540) Pentaquark' Peak
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Novel Interpretation of the 'Theta(+)(1540) Pentaquark' Peak

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Novel Interpretation of the 'Theta(+)(1540) Pentaquark' Peak

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dc.contributor.author Martínez Torres, Alberto
dc.contributor.author Oset Báguena, Eulogio
dc.date.accessioned 2015-08-19T10:50:47Z
dc.date.available 2015-08-19T10:50:47Z
dc.date.issued 2010
dc.identifier.uri http://hdl.handle.net/10550/46673
dc.description.abstract We use a theoretical model of the gamma d --> K+K- np reaction adapted to the experiment done at LEPS where a peak was observed and associated with the Theta(+)(1540) pentaquark. The study shows that the method used in the experiment to assign momenta to the undetected proton and neutron, together with the chosen cuts, necessarily creates an artificial broad peak in the assumed K(+)n invariant mass in the region of the claimed Theta(+)(1540), such that the remaining strength seen for the experimental peak is compatible with a fluctuation of 2 sigma significance.
dc.language.iso eng
dc.relation.ispartof Physical Review Letters, 2010, vol. 105, num. 9, p. 092001
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Martínez Torres, Alberto Oset Báguena, Eulogio 2010 Novel Interpretation of the 'Theta(+)(1540) Pentaquark' Peak Physical Review Letters 105 9 092001
dc.subject Física
dc.title Novel Interpretation of the 'Theta(+)(1540) Pentaquark' Peak
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-08-19T10:50:47Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevLett.105.092001
dc.identifier.idgrec 061771

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