ar X iv : h ep - t h / 03 09 18 2 v 1 1 8 Se p 20 03 1 Numerical Results on the Non – Commutative λφ 4 Model ∗
نویسندگان
چکیده
The UV/IR mixing in the λφ 4 model on a non-commutative (NC) space leads to new predictions in perturbation theory, including Hartree–Fock type approximations. Among them there is a changed phase diagram and an unusual behavior of the correlation functions. In particular this mixing leads to a deformation of the dispersion relation. We present numerical results for these effects in d = 3 with two NC coordinates.
منابع مشابه
ar X iv : h ep - e x / 06 09 03 0 v 1 1 8 Se p 20 06 Charm and Charmonium Spectroscopy
Recent experimental results in charm and charmonium spectroscopy are reviewed.
متن کاملar X iv : h ep - p h / 03 09 28 4 v 1 2 5 Se p 20 03 1 Transverse Momentum Distribution in b → sγ
We present the complete calculation of the transverse momentum distribution for the decay b → sγ. The contributions of the leading operatorˆO7 are computed: infrared logarithms are resummed with next-to-leading accuracy according to usual techniques of resummation. Non logarithmic terms are evaluated to O(αS) by calculating one loop diagrams.
متن کاملar X iv : h ep - p h / 03 09 18 4 v 1 1 6 Se p 20 03 Origin of universes with different properties
The concept of a random Lagrangian is proposed. It is considered as a basis for a new view of the old problems such as renormalization, nonzero vacuum energy and the anthropic principle. It gives rise to nontrivial consequences both in cosmology and in particle physics. It is shown that some of them could be checked in the nearest future. Scalar-tensor models of gravity are a direct and necessa...
متن کاملar X iv : h ep - p h / 03 09 33 9 v 1 3 0 Se p 20 03 SIT - HEP / TM - 19 Q ball inflation
We show that inflation can occur in the core of a Q-ball.
متن کاملar X iv : h ep - p h / 03 09 21 5 v 1 1 8 Se p 20 03 Cosmology and CP Violation 1
We describe the role of CP violation in the generation of the baryon asymmetry of the Universe, in the framework of baryogenesis through leptogenesis, with emphasis on the possible relationship between CP violation at low energies and that required by leptogen-esis. It is emphasized that a direct link between these two manifestations of CP violation only exists in the framework of specific flav...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2003