کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10720921 | 1031604 | 2005 | 71 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Superconformal Ward identities and their solution
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
فیزیک ریاضی
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چکیده انگلیسی
Superconformal Ward identities are derived for the four point functions of chiral primary BPS operators for N=2,4 superconformal symmetry in four dimensions. Manipulations of arbitrary tensorial fields are simplified by introducing a null vector so that the four point functions depend on two internal R-symmetry invariants as well as two conformal invariants. The solutions of these identities are interpreted in terms of the operator product expansion and are shown to accommodate long supermultiplets with free scale dimensions and also short and semi-short multiplets with protected dimensions. The decomposition into R-symmetry representations is achieved by an expansion in terms of two variable harmonic polynomials which can be expressed also in terms of Legendre polynomials. Crossing symmetry conditions on the four point functions are also discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Volume 711, Issue 3, 11 April 2005, Pages 409-479
Journal: Nuclear Physics B - Volume 711, Issue 3, 11 April 2005, Pages 409-479
نویسندگان
M. Nirschl, H. Osborn,