Photoproduction of neutral kaons on a liquid deuterium target in the threshold region

The photoproduction process of neutral kaons on a liquid deuterium target is investigated near the threshold region, E{sub {gamma}}=0.8-1.1 GeV. K{sup 0} events are reconstructed from positive and negative pions, and differential cross sections are derived. Experimental momentum spectra are compared...

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Vydané v:Physical review. C, Nuclear physics Ročník 78; číslo 1
Hlavní autori: Tsukada, K., Takahashi, T., Watanabe, T., Fujii, Y., Futatsukawa, K., Hashimoto, O., Hirose, K., Ito, K., Kameoka, S., Kanda, H., Maeda, K., Matsumura, A., Miura, Y., Miyase, H., Nakamura, S. N., Nomura, H., Nonaka, K., Osaka, T., Okayasu, Y., Tamura, H., Tsubota, H., Ukai, M., Yamauchi, H., Wakamatsu, M., Ishikawa, T., Kinoshita, T., Miyahara, F., Nakabayashi, T., Shimizu, H., Tamae, T., Yamazaki, H., Sasaki, A., Konno, O., Bydžovský, P., Sotona, M.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: United States 01.07.2008
Predmet:
ANGULAR DISTRIBUTION
DEUTERIUM TARGET
DEUTERONS
DIFFERENTIAL CROSS SECTIONS
GEV RANGE
ISOBAR MODEL
KAONS NEUTRAL
LIQUIDS
NUCLEAR PHYSICS AND RADIATION PHYSICS
PHOTOPRODUCTION
PIONS
SPECTRA
WAVE FUNCTIONS
ISSN:0556-2813, 1089-490X
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Popis
Shrnutí:The photoproduction process of neutral kaons on a liquid deuterium target is investigated near the threshold region, E{sub {gamma}}=0.8-1.1 GeV. K{sup 0} events are reconstructed from positive and negative pions, and differential cross sections are derived. Experimental momentum spectra are compared with those calculated in the spectator model using a realistic deuteron wave function. Elementary amplitudes as given by recent isobar models and a simple phenomenological model are used to study 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({gamma},K{sup 0}){lambda} process, which provides additional constraints on current models of kaon photoproduction. The present study demonstrates that the n({gamma},K{sup 0}){lambda} reaction can provide key information on the mechanism of the photoproduction of strangeness.
ISSN:0556-2813
1089-490X
DOI:10.1103/PhysRevC.78.014001