Bose-Fermi cancellations without supersymmetry
Abstract
We show that adjoint QCD features very strong Bose-Fermi cancellations in the large- limit, despite the fact that it is manifestly nonsupersymmetric. The difference between the bosonic and fermionic densities of states in large- adjoint QCD turns out to have a “two-dimensional” scaling for large energies in finite spatial volume, where is a length scale associated with the curvature of the spatial manifold. In particular, all Hagedorn growth cancels, and so does the growth expected in a standard local four-dimensional theory in spatial volume . In these ways, large- adjoint QCD, a manifestly nonsupersymmetric theory, acts similarly to supersymmetric theories. We also show that at large- the vacuum energy of multiflavor adjoint QCD is non-negative and exponentially small compared to the UV cutoff with several natural regulators.
- Authors:
- Publication Date:
- Research Org.:
- North Carolina State University, Raleigh, NC (United States); Univ. of Minnesota, Minneapolis, MN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF)
- OSTI Identifier:
- 1511093
- Alternate Identifier(s):
- OSTI ID: 1609461
- Grant/Contract Number:
- FG02-03ER41260; SC0011842; NSF PHY17-48958
- Resource Type:
- Published Article
- Journal Name:
- Physical Review. D.
- Additional Journal Information:
- Journal Name: Physical Review. D. Journal Volume: 99 Journal Issue: 10; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Astronomy & Astrophysics; Physics
Citation Formats
Cherman, Aleksey, Shifman, Mikhail, and Ünsal, Mithat. Bose-Fermi cancellations without supersymmetry. United States: N. p., 2019.
Web. doi:10.1103/PhysRevD.99.105001.
Cherman, Aleksey, Shifman, Mikhail, & Ünsal, Mithat. Bose-Fermi cancellations without supersymmetry. United States. https://doi.org/10.1103/PhysRevD.99.105001
Cherman, Aleksey, Shifman, Mikhail, and Ünsal, Mithat. Tue .
"Bose-Fermi cancellations without supersymmetry". United States. https://doi.org/10.1103/PhysRevD.99.105001.
@article{osti_1511093,
title = {Bose-Fermi cancellations without supersymmetry},
author = {Cherman, Aleksey and Shifman, Mikhail and Ünsal, Mithat},
abstractNote = {We show that adjoint QCD features very strong Bose-Fermi cancellations in the large-N limit, despite the fact that it is manifestly nonsupersymmetric. The difference between the bosonic and fermionic densities of states in large-N adjoint QCD turns out to have a “two-dimensional” scaling ~exp(ℓE) for large energies E in finite spatial volume, where ℓ is a length scale associated with the curvature of the spatial manifold. In particular, all Hagedorn growth cancels, and so does the growth exp(V1/4E3/4) expected in a standard local four-dimensional theory in spatial volume V. In these ways, large-N adjoint QCD, a manifestly nonsupersymmetric theory, acts similarly to supersymmetric theories. We also show that at large-N the vacuum energy of multiflavor adjoint QCD is non-negative and exponentially small compared to the UV cutoff with several natural regulators.},
doi = {10.1103/PhysRevD.99.105001},
journal = {Physical Review. D.},
number = 10,
volume = 99,
place = {United States},
year = {Tue May 07 00:00:00 EDT 2019},
month = {Tue May 07 00:00:00 EDT 2019}
}
https://doi.org/10.1103/PhysRevD.99.105001
Web of Science
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