Orbifold equivalence for finite density QCD and effective field theory
| العنوان: | Orbifold equivalence for finite density QCD and effective field theory |
|---|---|
| المؤلفون: | Brian C. Tiburzi, Aleksey Cherman |
| المصدر: | Journal of High Energy Physics. 2011 |
| بيانات النشر: | Springer Science and Business Media LLC, 2011. |
| سنة النشر: | 2011 |
| مصطلحات موضوعية: | High Energy Physics - Theory, Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Nuclear Theory, High Energy Physics::Lattice, Spontaneous symmetry breaking, High Energy Physics - Lattice (hep-lat), High Energy Physics::Phenomenology, FOS: Physical sciences, 1/N expansion, Nuclear Theory (nucl-th), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), High Energy Physics - Lattice, High Energy Physics - Theory (hep-th), Effective field theory, Gauge theory, Baryon number, Equivalence (measure theory), Orbifold, Mathematical physics |
| الوصف: | In the large N_c limit, some apparently different gauge theories turn out to be equivalent due to large N_c orbifold equivalence. We use effective field theory techniques to explore orbifold equivalence, focusing on the specific case of a recently discovered relation between an SO(2N_c) gauge theory and QCD. The equivalence to QCD has been argued to hold at finite baryon chemical potential, \mu_B, so long as one deforms the SO(2N_c) theory by certain "double-trace" terms. The deformed SO(2N_c) theory can be studied without a sign problem in the chiral limit, in contrast to SU(N_c) QCD at finite \mu_B. The purpose of the double-trace deformation in the SO(2N_c) theory is to prevent baryon number symmetry from breaking spontaneously at finite density, which is necessary for the equivalence to large N_c QCD to be valid. The effective field theory analysis presented here clarifies the physical significance of double-trace deformations, and strongly supports the proposed equivalence between the deformed SO(2N_c) theory and large N_c QCD at finite density. Comment: 39 pages, 5 figures, 2 tables. v2: Minor typo fixes and clarifications |
| تدمد: | 1029-8479 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c1cfd634a509786382ff726ea23658dTest https://doi.org/10.1007/jhep06Test(2011)034 |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....6c1cfd634a509786382ff726ea23658d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10298479 |
|---|