Evidence for formation of a narrow pKshort resonance with mass near 1533 MeV in neutrino interactions

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dc.creatorAsratyan, A. E.
dc.creatorDolgolenko, A. G.
dc.creatorKubantsev, M. A.
dc.date2003-09-11
dc.date2004-04-21
dc.date.accessioned2026-07-07T10:28:20Z
dc.date.available2026-07-07T10:28:20Z
dc.descriptionA narrow baryon resonance is observed in invariant mass of the pKshort system formed in neutrino and antineutrino collisions with nuclei. The mass of the resonance is estimated as (1533+-5)MeV. The observed width is less than 20 MeV, and is compatible with being entirely due to experimental resolution. The statistical significance of the signal is near 6.7 standard deviations. As the position of the observed resonance does not match the mass of any known Σ^{*+} state, we believe that it arises from neutrino production of the Θ^+ pentaquark baryon. The analysis is based on the data obtained in past neutrino experiments with big bubble chambers: WA21, WA25, WA59, E180 and E632.
dc.descriptionInstitute of Theoretical and Experimental Physics, B.Cheremyshkinskya 25, Moscow 117259, Russia
dc.identifierhttps://arxiv.org/abs/hep-ex/0309042
dc.identifierhttp://arxiv.org/abs/hep-ex/0309042
dc.identifierPhys.Atom.Nucl.67:682-687,2004; Yad.Fiz.67:704-709,2004
dc.identifierdoi:10.1134/1.1707127
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177413
dc.subjectHigh Energy Physics - Experiment
dc.titleEvidence for formation of a narrow pKshort resonance with mass near 1533 MeV in neutrino interactions
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