کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1836161 1527070 2016 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Antikaon–nucleon interaction and Λ(1405) in chiral SU(3) dynamics
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Antikaon–nucleon interaction and Λ(1405) in chiral SU(3) dynamics
چکیده انگلیسی

The properties of the Λ(1405)Λ(1405) resonance are key ingredients for determining the antikaon–nucleon interaction in strangeness nuclear physics, and the novel internal structure of the Λ(1405)Λ(1405) is of great interest in hadron physics, as a prototype case of a baryon that does not fit into the simple three-quark picture. We show that a quantitative description of the antikaon–nucleon interaction with the Λ(1405)Λ(1405) is achieved in the framework of chiral SU(3) dynamics, with the help of recent experimental progress. Further constraints on the K¯N subthreshold interaction are provided by analyzing π  Σ spectra in various processes, such as the K−d→πΣnK−d→πΣn reaction and the Λc→ππΣΛc→ππΣ decay. The structure of the Λ(1405)Λ(1405) is found to be dominated by an antikaon–nucleon molecular configuration, based on its wavefunction derived from a realistic K¯N potential and the compositeness criteria from a model-independent weak-binding relation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics A - Volume 954, October 2016, Pages 41–57
نویسندگان
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