Perturbation theory at large order in reggeon field theory
نویسندگان
چکیده
منابع مشابه
Large-Order Perturbation Theory in Infrared-Unstable Superrenormalizable Field Theories
We study the factorial divergences of Euclidean φ5, a problem with connections both to high-energy multiparticle scattering in d=4 and to d=3 (or high-temperature) gauge theory, which like φ5 is infrared-unstable and superrenormalizable. At large external momentum p (or small mass M) and large order N one might expect perturbative bare skeleton graphs to behave roughly like N !(ag/p) with a > 0...
متن کاملThe Anomaly and Reggeon Field Theory in Qcd
The appearance of the U(1) anomaly in the interactions of reggeized gluons is described. Also discussed is the crucial role the anomaly can play in providing the non-perturbative properties necessary for a transition from gluon and quark reggeon diagrams to hadron reggeons and a reggeon field theory description of the pomeron.
متن کاملRelations at Order p in Chiral Perturbation Theory
We report on a search of relations valid at order p in Chiral Perturbation Theory. We have found relations between ππ, πK scattering, Kl4 decays, masses and decay constants and scalar and vector form factors. In this paper we give the relations and a first numerical check of them. PACS: 12.39.Fe Chiral Lagrangians, 11.30.Rd Chiral symmetries , 14.40.Aq π, K, and η mesons , 12.38.Lg Other nonper...
متن کاملSecond-order perturbation theory: problems on large scales
In general-relativistic perturbation theory, a point mass accelerates away from geodesic motion due to its gravitational self-force. Because the self-force is small, one can often approximate the motion as geodesic. However, it is well known that self-force effects accumulate over time, making the geodesic approximation fail on long timescales. It is less well known that this failure at large t...
متن کاملBaryon Masses at Second Order in Chiral Perturbation Theory
We analyze the baryon mass differences up to second order in chiral perturbation theory, including the effects of decuplet intermediate states. We show that the Coleman–Glashow relation has computable corrections of order (md − mu)ms. These corrections are numerically small, and in agreement with the data. We also show that corrections to the Σ equal-spacing rule are dominated by electromagneti...
متن کاملذخیره 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: Nuclear Physics B
سال: 1977
ISSN: 0550-3213
DOI: 10.1016/0550-3213(77)90130-4