Version 43 (modified by mashry, 4 years ago) (diff)


Alternative Left-Right Symmetric Model


Alternative Left-Right Symmetric Model (ALRM)


Mustafa Ashry

  1. Center for Fundamental Physics, Zewail City of Science and Technology, Sheikh Zayed, 12588 Giza, Egypt
  2. Department of Mathematics, Faculty of Science, Cairo University, 12613 Giza, Egypt



Model Description

As any other left-right symmetric model, ALRM is the QFT gauged by SU(2)_L×SU(2)_R×U(1)_B-L. B and L being the baryon and lepton numbers. An extra discrete S symmetry is imposed to differentiate between both left and right fields of the Higgs sector.


  1. M. Ashry and S. Khalil, Phenomenological aspects of a TeV-scale alternative left-right model, Physical Review D 91, 015009 (2015) (arXiv:1310.3315) (
  2. Mustafa Ashry, TeV-scale left-right symmetric model with minimal Higgs sector, Master Thesis, Cairo University, Cairo (2015)(


For the CalcHEP files, it's advised to use those uploaded to the page ( and not to produce them from the model files. In the later case, you will be faced by a conflict between the string size produced by FeynRules and this allowed by CalcHEP. In fact, those CalcHEP files uploaded to the page are general and there is no need to produce them again, unless you have modified the model itself and want to generate the new ones.


Thanks to W. Abdallah; being revised the CalcHEP files and fixed the string size errors manually. The author would like to thank W. Abdallah, the late colleague A. Elsayed and A. Moursy for their helpful hints and useful discussions. Thanks to Prof. M. E. Peskin and Dr. B. Fucks for replying the questions and for their guiding notes.

Attachments (10)