OPE in planar QCD from integrability

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Integrability in Qcd and Beyond

Yang–Mills theories in four space-time dimensions possess a hidden symmetry which does not exhibit itself as a symmetry of classical Lagrangians, but is only revealed on the quantum level. It turns out that the effective Yang–Mills dynamics in several important limits is described by completely integrable systems that prove to be related to the celebrated Heisenberg spin chain and its generaliz...

متن کامل

OPE of the energy-momentum tensor correlator in massless QCD

Abstract: We analytically calculate higher order corrections to coefficient functions of the operator product expansion (OPE) for the Euclidean correlator of two energy-momentum tensors in massless QCD. These are the three-loop contribution to the coefficient C0 in front of the unity operator O0 = 1 and the one and two-loop contributions to the coefficient C1 in front of the gluon “condensate” ...

متن کامل

Current correlators in QCD : OPE versus large distance dynamics

Current correlators in QCD: OPE versus large distance dynamics. Abstract We analyse the structure of current-current correlators in coordinate space in large N c limit when the corresponding spectral density takes the form of an infinite sum over hadron poles. The latter are computed in the QCD string model with quarks at the ends, including the lowest states, for all channels. The correspondin...

متن کامل

Integrability and duality in two-dimensional QCD

We consider bosonized QCD2, and prove that after rewriting the theory in terms of gaugeinvariant fields, there exists an integrability condition that is valid for the quantum theory as well. Furthermore, performing a duality-type transformation we obtain an appropriate action for the description of the strong coupling limit, which is still integrable. We also prove that the model displays a com...

متن کامل

Quasi-integrability and two-dimensional QCD

The notion of integrability in two-dimensional QCD is discussed. We show that in spite of an infinite number of conserved charges, particle production is not entirely suppressed. This phenomenon, which we call quasiintegrability, is explained in terms of quantum corrections to the combined algebra of higher-conserved and spectrum-generating currents. We predict the qualitative form of particle ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of High Energy Physics

سال: 2012

ISSN: 1029-8479

DOI: 10.1007/jhep06(2012)168