Baryon and lepton number assignment in E6 models

Paschos, Emmanuel A. ; Sarkar, Utpal ; So, Hiroto (1995) Baryon and lepton number assignment in E6 models Physical Review D - Particles, Fields, Gravitation and Cosmology, 52 (3). pp. 1701-1705. ISSN 1550-7998

PDF - Author Version

Official URL:

Related URL:


In E6 models there are new particles whose baryon number is not uniquely assigned. We point out that the baryon and lepton number assignment to these particles can change the baryogenesis scenario significantly. We consider a left-right symmetric extension of the standard model in which the (B-L) quantum number is gauged. The identification of (B-L) with a generator of E6 is used to define the baryon and lepton numbers for the exotic particles in a way that the electroweak baryon and lepton number anomaly corresponding to the SU(2)L group vanishes; i.e., there is no nonperturbative baryon or lepton number violation during the electroweak phase transition. We study some consequences of the new assignment.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:45506
Deposited On:28 Jun 2011 05:01
Last Modified:18 May 2016 01:45

Repository Staff Only: item control page