کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8182583 | 1526766 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Charmonium spectrum and diffractive production in a light-front Hamiltonian approach
ترجمه فارسی عنوان
طیف کرومونیوم و تولید پراکنده در یک رویکرد همیلتون نوری به جلو
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کلمات کلیدی
کریمیم، چراغ جلو تولید مزون، مدل دوقطبی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
چکیده انگلیسی
We study exclusive charmonium production in diffractive deep inelastic scattering and ultra-peripheral heavy-ion collisions within the dipole picture. The mass spectrum and light-front wavefunctions of charmonium are obtained from the basis light-front quantization approach, using the one-gluon exchange interaction plus a confining potential inspired by light-front holography. We apply these light-front wavefunctions to exclusive charmonium production. The resulting cross sections are in reasonable agreement with electron-proton collision data at HERA and ultra-peripheral nucleus collision measurements at RHIC and LHC. The charmonium cross-section has model dependence on the dipole model. We observe that the cross-section ratio of excited states to the ground state has a weaker dependence than the cross-section itself. We suggest that measurements of excited states of heavy quarkonium production in future electron-ion collision experiments will impose rigorous constraints on heavy quarkonium light-front wave-functions, thus improving our understanding of meson structure, which eventually will help us develop a precise description of the gluon distribution function in the small-x regime.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear and Particle Physics Proceedings - Volumes 289â290, AugustâSeptember 2017, Pages 409-413
Journal: Nuclear and Particle Physics Proceedings - Volumes 289â290, AugustâSeptember 2017, Pages 409-413
نویسندگان
Guangyao Chen, Yang Li, Pieter Maris, Kirill Tuchin, James P. Vary,