How important is i∈ in QFT?

Amir H. Fariborz; Renata Jora; Joseph Schechter

doi:10.1142/S0217751X15500712

How important is i∈ in QFT?

Amir H. Fariborz
, Renata Jora
, Joseph Schechter

College of Arts & Sciences

SUNY Polytechnic Institute

Horia Hulubei National Institute of Physics and Nuclear Engineering
Syracuse University

Research output: Contribution to journal › Article › peer-review

Abstract

We discuss the role of i∈ in quantum field theories and suggest that it can be identified with the dimensional regularization parameter i∈ = 4-d thus clarifying and simplifying issues related to the infrared divergences without altering any of the present knowledge in QFT. We further present the relevance of this assumption for the optical theorem.

Original language	English
Article number	1550071
Journal	International Journal of Modern Physics A
Volume	30
Issue number	14
DOIs	https://doi.org/10.1142/S0217751X15500712
State	Published - May 20 2015

Keywords

Optical theorem
Ultraviolet and infrared divergences
i∈

Access to Document

10.1142/S0217751X15500712

Cite this

@article{c78441a673f3433097cadc998226e053,

title = "How important is i∈ in QFT?",

abstract = "We discuss the role of i∈ in quantum field theories and suggest that it can be identified with the dimensional regularization parameter i∈ = 4-d thus clarifying and simplifying issues related to the infrared divergences without altering any of the present knowledge in QFT. We further present the relevance of this assumption for the optical theorem.",

keywords = "Optical theorem, Ultraviolet and infrared divergences, i∈",

author = "Fariborz, \{Amir H.\} and Renata Jora and Joseph Schechter",

note = "Publisher Copyright: {\textcopyright} 2015 World Scientific Publishing Company.",

year = "2015",

month = may,

day = "20",

doi = "10.1142/S0217751X15500712",

language = "English",

volume = "30",

journal = "International Journal of Modern Physics A",

issn = "0217-751X",