کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9861648 1529008 2005 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Finite temperature pion vector form factors in chiral perturbation theory
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
Finite temperature pion vector form factors in chiral perturbation theory
چکیده انگلیسی
We discuss the thermal behaviour of the pion vector form factors and calculate them in one-loop chiral perturbation theory. The perturbative result is used to analyze the T-dependent electromagnetic pion charge radius, obtaining a rough estimate of the deconfinement critical temperature. Imposing thermal unitarity, we generate the ρ resonance pole for the form factor in the center of mass frame. The ρ peak height in the modulus of the form factor decreases for increasing temperature, while its width increases and the peak position is slightly shifted downwards for T≃150 MeV. These results point in the direction suggested by many analysis of dilepton production data in relativistic heavy ion collisions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 606, Issues 3–4, 27 January 2005, Pages 351-360
نویسندگان
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