کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1849180 | 1528814 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
What can radiative decays of the X(3872) teach us about its nature?
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: What can radiative decays of the X(3872) teach us about its nature? What can radiative decays of the X(3872) teach us about its nature?](/preview/png/1849180.png)
چکیده انگلیسی
Starting from the hypothesis that the X(3872)X(3872) is a DD¯⁎ molecule, we discuss the radiative decays of the X(3872)X(3872) into γJ/ψγJ/ψ and γψ′γψ′ from an effective field theory point of view. We show that radiative decays are very weakly sensitive to the long-range structure of the X(3872)X(3872). In particular, contrary to earlier claims, we argue that the experimentally determined ratio of the mentioned branching fractions is not in conflict with a wave function of the X(3872)X(3872) that is dominated by the DD¯⁎ hadronic molecular component.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 742, 6 March 2015, Pages 394–398
Journal: Physics Letters B - Volume 742, 6 March 2015, Pages 394–398
نویسندگان
Feng-Kun Guo, C. Hanhart, Yu.S. Kalashnikova, Ulf-G. Meißner, A.V. Nefediev,