کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8200811 | 1528962 | 2006 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of the in-medium Î+ pentaquark on the kaon optical potential
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The effect of the in-medium Î+ pentaquark on the kaon optical potential The effect of the in-medium Î+ pentaquark on the kaon optical potential](/preview/png/8200811.png)
چکیده انگلیسی
The kaon nuclear optical potential is studied including the effect of the Î+ pentaquark. The one-nucleon contribution is obtained using an extension of the Jülich meson-exchange potential as bare kaon-nucleon interaction. Significant differences between a fully self-consistent calculation and the usually employed low-density TÏ approach are observed. The influence of the one-nucleon absorption process, KNâÎ+, on the kaon optical potential is negligible due to the small width of the pentaquark. In contrast, the two-nucleon mechanism, KNNâÎ+N, estimated from the coupling of the pentaquark to a two-meson cloud, provides the required amount of additional kaon absorption to reconcile with data the systematically low K+-nucleus reaction cross sections found by the theoretical models.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 632, Issues 2â3, 12 January 2006, Pages 219-225
Journal: Physics Letters B - Volume 632, Issues 2â3, 12 January 2006, Pages 219-225
نویسندگان
Laura Tolós, Daniel Cabrera, Angels Ramos, Artur Polls,