کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1840772 | 1031240 | 2013 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase structure of a generalized Nambu-Jona-Lasinio model with Wilson fermions in the mean-field or large-N expansion
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
فیزیک ریاضی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Phase structure of a generalized Nambu-Jona-Lasinio model with Wilson fermions in the mean-field or large-N expansion Phase structure of a generalized Nambu-Jona-Lasinio model with Wilson fermions in the mean-field or large-N expansion](/preview/png/1840772.png)
چکیده انگلیسی
We analyze the vacuum structure of a generalized lattice Nambu-Jona-Lasinio model with two flavors of Wilson fermions, such that its continuum action is the most general four-fermion action with “trivial” color interactions, and having a SU(2)VÃSU(2)A symmetry in the chiral limit. The phase structure of this model in the space of the two four-fermion couplings shows, in addition to the standard Aoki phases, new phases with ãϯγ5Ïãâ 0, in close analogy to similar results recently suggested by some of us for lattice QCD with two degenerate Wilson fermions. This result shows how the phase structure of an effective model for low-energy QCD cannot be entirely understood from Wilson Chiral Perturbation Theory, based on the standard QCD chiral effective Lagrangian approach.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Volume 875, Issue 1, 1 October 2013, Pages 45-62
Journal: Nuclear Physics B - Volume 875, Issue 1, 1 October 2013, Pages 45-62
نویسندگان
V. Azcoiti, G. Di Carlo, E. Follana, M. Giordano, A. Vaquero,