Evidence for theΘ+in theγd→K+K−pnreaction by detectingK+K−pairs

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ID: 273500
2009
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Abstract
The γd→K+K−pn reaction has been studied to search for the evidence of the Θ+ by detecting K+K− pairs at forward angles. The Fermi-motion-corrected nK+ invariant mass distribution shows a narrow peak at 1.524±0.002+0.003 GeV/c2. The statistical significance of the peak calculated from a shape analysis is 5.1 σ, and the differential cross section for the γn→K−Θ+ reaction is estimated to be 12±2 nb/sr in the photon energy range from 2.0 to 2.4 GeV in the LEPS angular range by assuming the isotropic production of the Θ+ in the γn center-of-mass system. The obtained results support the existence of the Θ+.
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zegers2009physicalevidence Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors T. Nakano,N. Muramatsu,D. S. Ahn,J. K. Ahn,H. Akimune,Y. Asano,W. C. Chang,S. Daté,H. Ejiri,H. Fujimura,M. Fujiwara,S. Fukui,H. Hasegawa,K. Hicks,K. Horie,T. Hotta,K. Imai,T. Ishikawa,T. Iwata,Y. Kato,H. Kawai,Z. Y. Kim,K. Kino,H. Kohri,N. Kumagai,S. Makino,T. Matsuda,N. Matsuoka,T. Matsumura,T. Mibe,M. Miyabe,Y. Miyachi,M. Niiyama,M. Nomachi,Y. Ohashi,H. Ohkuma,T. Ooba,D. S. Oshuev,C. Rangacharyulu,A. Sakaguchi,P. M. Shagin,Y. Shiino,A. Shimizu,Y. Sugaya,M. Sumihama,Y. Toi,H. Toyokawa,A. Wakai,C. W. Wang,S. C. Wang,K. Yonehara,T. Yorita,M. Yoshimura,M. Yosoi,R. G. T. Zegers;T. Nakano;N. Muramatsu;D. S. Ahn;J. K. Ahn;H. Akimune;Y. Asano;W. C. Chang;S. Daté;H. Ejiri;H. Fujimura;M. Fujiwara;S. Fukui;H. Hasegawa;K. Hicks;K. Horie;T. Hotta;K. Imai;T. Ishikawa;T. Iwata;Y. Kato;H. Kawai;Z. Y. Kim;K. Kino;H. Kohri;N. Kumagai;S. Makino;T. Matsuda;N. Matsuoka;T. Matsumura;T. Mibe;M. Miyabe;Y. Miyachi;M. Niiyama;M. Nomachi;Y. Ohashi;H. Ohkuma;T. Ooba;D. S. Oshuev;C. Rangacharyulu;A. Sakaguchi;P. M. Shagin;Y. Shiino;A. Shimizu;Y. Sugaya;M. Sumihama;Y. Toi;H. Toyokawa;A. Wakai;C. W. Wang;S. C. Wang;K. Yonehara;T. Yorita;M. Yoshimura;M. Yosoi;R. G. T. Zegers;
Journal physical review c
Year 2009
DOI
10.1103/physrevc.79.025210
URL
https://sciprofiles.com/publication/view/45b7cf1ce6c96d1c32f2a1cf5716aefa
Keywords
gamma radiation photons mass distribution deuterium

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