Cross sections and beam asymmetry for K;{+}Sigma;{*-} photoproduction from the deuteron at E_{gamma}=1.5-2.4 GeV.
The Sigma(1385) resonance, or Sigma;{*}, is well known as part of the standard baryon decuplet with spin J=3/2. Measurements of the reaction gammap-->K;{+}Sigma;{*0} are difficult to extract due to overlap with the nearby Lambda(1405) resonance. However, the reaction gamman-->K;{+}Sigma;{*-} has no overlap with the Lambda(1405) due to its charge. Here we report the first measurement of cross sections and beam asymmetries for photoproduction of the Sigma;{*-} from a deuteron target. The cross sections at forward angles range from 0.4 to 1.2 mub, with a broad maximum near E_{gamma} approximately 1.8 GeV. The beam asymmetries are negative, in contrast with positive values for the gamman-->K;{+}Sigma;{-} reaction.
Hicks
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K
Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA.
Keller
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Kohri
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Ahn
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Ahn
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Akimune
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Asano
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Chang
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Daté
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Ejiri
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Fukui
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Fujimura
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Fujiwara
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Hasegawa
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Hotta
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Imai
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Ishikawa
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Iwata
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Kato
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Kawai
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Kim
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Kino
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Kumagai
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Makino
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Matsuda
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Matsumura
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Matsuoka
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Mibe
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Miyabe
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Miyachi
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Morita
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Muramatsu
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Nakano
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Niiyama
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Nomachi
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Oh
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Ohashi
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Ohkuma
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Ooba
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Parker
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Rangacharyulu
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Sakaguchi
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Sasaki
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Shagin
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Shiino
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Shimizu
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Shimizu
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Sugaya
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Sumihama
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Toi
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Toyokawa
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Wakai
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Wang
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Wang
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Yonehara
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Yorita
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Yoshimura
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Yosoi
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Zegers
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