Photoproduction of the neutral kaon in the threshold region at LNS

K. Tsukada

doi:10.1142/s0217732309000498

Photoproduction of the neutral kaon in the threshold region at LNS

K. Tsukada

Research Center for Electron Photon Science (ELPH)

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

Abstract

The K⁰ photoproduction process is investigated in the threshold region, E_γ = 0.8-1.1 GeV at LNS-Tohoku. K⁰ events are measured via π⁺π^- decay channel. Obtained momentum spectra for the deuteron target are compared with those calculated in the spectator model using a realistic deuteron wave function. Recent isobar models and a simple phenomenological model are used as elementary amplitudes to investigate the effect of the new data on the angular behavior of the elementary cross section. The data favor a backward-peaked angular distribution of the elementary n(γ, K⁰)Λ process in the center-of-mass (c.m.) system, which provides additional constraints on current models of kaon photoproduction. The present study shows that the n(γ, K ⁰)Λ reaction can provide key information on the mechanism of the photoproduction of strangeness.

Original language	English
Pages (from-to)	1017-1022
Number of pages	6
Journal	Modern Physics Letters A
Volume	24
Issue number	11-13
DOIs	https://doi.org/10.1142/s0217732309000498
Publication status	Published - 2009 Apr 30

Keywords

Kaon
Photoproduction

ASJC Scopus subject areas

Nuclear and High Energy Physics
Astronomy and Astrophysics
Physics and Astronomy(all)

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title = "Photoproduction of the neutral kaon in the threshold region at LNS",

abstract = "The K0 photoproduction process is investigated in the threshold region, Eγ = 0.8-1.1 GeV at LNS-Tohoku. K0 events are measured via π+π- decay channel. Obtained momentum spectra for the deuteron target are compared with those calculated in the spectator model using a realistic deuteron wave function. Recent isobar models and a simple phenomenological model are used as elementary amplitudes to investigate the effect of the new data on the angular behavior of the elementary cross section. The data favor a backward-peaked angular distribution of the elementary n(γ, K0)Λ process in the center-of-mass (c.m.) system, which provides additional constraints on current models of kaon photoproduction. The present study shows that the n(γ, K 0)Λ reaction can provide key information on the mechanism of the photoproduction of strangeness.",

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AU - Tsukada, K.

PY - 2009/4/30

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N2 - The K0 photoproduction process is investigated in the threshold region, Eγ = 0.8-1.1 GeV at LNS-Tohoku. K0 events are measured via π+π- decay channel. Obtained momentum spectra for the deuteron target are compared with those calculated in the spectator model using a realistic deuteron wave function. Recent isobar models and a simple phenomenological model are used as elementary amplitudes to investigate the effect of the new data on the angular behavior of the elementary cross section. The data favor a backward-peaked angular distribution of the elementary n(γ, K0)Λ process in the center-of-mass (c.m.) system, which provides additional constraints on current models of kaon photoproduction. The present study shows that the n(γ, K 0)Λ reaction can provide key information on the mechanism of the photoproduction of strangeness.

AB - The K0 photoproduction process is investigated in the threshold region, Eγ = 0.8-1.1 GeV at LNS-Tohoku. K0 events are measured via π+π- decay channel. Obtained momentum spectra for the deuteron target are compared with those calculated in the spectator model using a realistic deuteron wave function. Recent isobar models and a simple phenomenological model are used as elementary amplitudes to investigate the effect of the new data on the angular behavior of the elementary cross section. The data favor a backward-peaked angular distribution of the elementary n(γ, K0)Λ process in the center-of-mass (c.m.) system, which provides additional constraints on current models of kaon photoproduction. The present study shows that the n(γ, K 0)Λ reaction can provide key information on the mechanism of the photoproduction of strangeness.

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