کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8199620 | 1528956 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Search for Î+ via ÏâpâKâX reaction near production threshold
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
We have searched for Î+ via ÏâpâKâX reaction using 1.87 and 1.92GeV/cÏâ beam at the K2 beam line of the KEK 12 GeV proton synchrotron. In the missing mass spectrum at beam momentum of 1.92GeV/c, a bump has been found at 1530MeV/c2 which is consistent with the mass reported by several experiments. The statistical significance of this bump, however, is only 2.5-2.7Ï. Therefore we have derived the upper limit of Î+ production cross section via ÏâpâKâÎ+ reaction which is 3.9 μb at 90% confidence level assuming that Î+ is produced isotropically in the center of mass system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 635, Issues 2â3, 6 April 2006, Pages 72-79
Journal: Physics Letters B - Volume 635, Issues 2â3, 6 April 2006, Pages 72-79
نویسندگان
K. Miwa, J.K. Ahn, K. Aoki, B.H. Choi, Y. Fukao, H. Funahashi, T. Hayakawa, M. Hayata, T. Hibi, M. Ieiri, K. Imai, S.J. Kim, K. Nakazawa, H. Nishikawa, H. Okada, N. Saito, H.D. Sato, K. Shoji, C.J. Yoon,