Anomalous fermion number non-conservation on the lattice

نویسنده

  • István Montvay
چکیده

The anomaly for the fermion number current is calculated on the lattice in a simple prototype model with an even number of fermion doublets.

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Fermion Number Violation and a Two-dimensional Higgs Model

The investigation of topological properties of the gauge field in a two-dimensional Higgs model can help in understanding anomalous fermion number violation. 1. A simple model for fermion number violation Fermion number, which is the sum of baryon number and lepton number (B+L), is not conserved in the Standard Model 1. This is due to the anomaly in the fermion current. The lattice formulation ...

متن کامل

Four-dimensional N = 1 Supersymmetric Yang-mills Theory on the Lattice without Fine-tuning

We propose a method to formulate four-dimensional N = 1 super Yang-Mills theory on the lattice without ne-tuning. We rst show that four-dimensional Weyl fermion in a real representation, which is equivalent to Majorana fermion, can be formulated using the domain wall approach with an addition of a Majorana mass term only for the unwanted mirror fermion. This formalism has manifest gauge invaria...

متن کامل

N = 1 Supersymmetric Yang - Mills Theory on the Lattice without Fine - Tuning

We propose a method to formulate four-dimensional N = 1 super Yang-Mills theory on the lattice without fine-tuning. We first show that four-dimensional Weyl fermion in a real representation, which is equivalent to Majorana fermion, can be formulated using the domain wall approach with an addition of a Majorana mass term only for the unwanted mirror fermion. This formalism has manifest gauge inv...

متن کامل

Can Baryogenesis Occur on the Lattice?

We examine the question of how baryogenesis can occur in lattice models of the Standard Model where there is a global U(1) symmetry which is accompanied by an exactly conserved fermion number. We demonstrate that fermion creation and annihilation can occur in these models despite this exact fermion number conservation, by explicitly computing the spectral flow of the hamiltonian in the two dime...

متن کامل

= 1 Supersymmetric Yang - Mills Theories on the Lattice without Fine - Tuning

We propose a method to formulate four-dimensionalN = 1 super Yang-Mills theory on the lattice without fine-tuning. We first show that a Weyl fermion in a real representation can be formulated using the domain wall approach with an addition of a Majorana mass term only for the unwanted mirror fermion. This formalism has manifest gauge invariance. The fermion number conservation is only violated ...

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1992