Recent results and prospects on the Θ+ study at LEPS

Norihito Muramatsu

doi:10.1143/PTPS.168.10

Recent results and prospects on the Θ⁺ study at LEPS

Norihito Muramatsu

Research Center for Electron Photon Science (ELPH)

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The LEPS experiment at SPring-8 has collected data in reactions of 1.5-2.4 GeV photons with a liquid deuterium target. The pentaquark baryon Θ⁺ was searched for in a missing mass spectrum of K^- and proton from a deuteron. A peak structure of 4-5σ was observed at 1.53 GeV/c² above background spectra which were estimated by two complementary methods. Further data is being collected with a higher intensity beam. Confirmations and systematic studies of the Θ⁺ will continue at new facilities of SPring-8 and J-PARC.

Original language	English
Pages (from-to)	10-14
Number of pages	5
Journal	Progress of Theoretical Physics Supplement
Issue number	168
DOIs	https://doi.org/10.1143/PTPS.168.10
Publication status	Published - 2007

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Recent results and prospects on the Θ⁺ study at LEPS

Abstract

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