Extended investigation of the twelve-flavor β-function
Abstract
We report new results from high precision analysis of an important BSM gauge theory with twelve massless fermion flavors in the fundamental representation of the SU(3) color gauge group. The range of the renormalized gauge coupling is extended from our earlier work [1] to probe the existence of an infrared fixed point (IRFP) in the β-function reported at two different locations, originally in [2] and at a new location in [3]. We find no evidence for the IRFP of the β-function in the extended range of the renormalized gauge coupling, in disagreement with [2], [3]. New arguments to guard the existence of the IRFP remain unconvincing [4], including recent claims of an IRFP with ten massless fermion flavors [5], [6] which we also rule out. Predictions of the recently completed 5-loop QCD β-function for general flavor number are discussed in this context.
- Authors:
- Publication Date:
- Research Org.:
- Univ. of California, San Diego, CA (United States); Univ. of Wuppertal (Germany); Forschungszentrum Juelich (Germany)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); Hungarian Scientific Research Fund (OTKA); German Research Foundation (DFG)
- OSTI Identifier:
- 1420331
- Alternate Identifier(s):
- OSTI ID: 1499172
- Grant/Contract Number:
- OTKA-NF-104034; 1620845; 1318220; SFB-TR 55; SC0009919
- Resource Type:
- Published Article
- Journal Name:
- Physics Letters B
- Additional Journal Information:
- Journal Name: Physics Letters B Journal Volume: 779 Journal Issue: C; Journal ID: ISSN 0370-2693
- Publisher:
- Elsevier
- Country of Publication:
- Netherlands
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Fodor, Zoltán, Holland, Kieran, Kuti, Julius, Nógrádi, Dániel, and Wong, Chik Him. Extended investigation of the twelve-flavor β-function. Netherlands: N. p., 2018.
Web. doi:10.1016/j.physletb.2018.02.008.
Fodor, Zoltán, Holland, Kieran, Kuti, Julius, Nógrádi, Dániel, & Wong, Chik Him. Extended investigation of the twelve-flavor β-function. Netherlands. https://doi.org/10.1016/j.physletb.2018.02.008
Fodor, Zoltán, Holland, Kieran, Kuti, Julius, Nógrádi, Dániel, and Wong, Chik Him. Sun .
"Extended investigation of the twelve-flavor β-function". Netherlands. https://doi.org/10.1016/j.physletb.2018.02.008.
@article{osti_1420331,
title = {Extended investigation of the twelve-flavor β-function},
author = {Fodor, Zoltán and Holland, Kieran and Kuti, Julius and Nógrádi, Dániel and Wong, Chik Him},
abstractNote = {We report new results from high precision analysis of an important BSM gauge theory with twelve massless fermion flavors in the fundamental representation of the SU(3) color gauge group. The range of the renormalized gauge coupling is extended from our earlier work [1] to probe the existence of an infrared fixed point (IRFP) in the β-function reported at two different locations, originally in [2] and at a new location in [3]. We find no evidence for the IRFP of the β-function in the extended range of the renormalized gauge coupling, in disagreement with [2], [3]. New arguments to guard the existence of the IRFP remain unconvincing [4], including recent claims of an IRFP with ten massless fermion flavors [5], [6] which we also rule out. Predictions of the recently completed 5-loop QCD β-function for general flavor number are discussed in this context.},
doi = {10.1016/j.physletb.2018.02.008},
journal = {Physics Letters B},
number = C,
volume = 779,
place = {Netherlands},
year = {Sun Apr 01 00:00:00 EDT 2018},
month = {Sun Apr 01 00:00:00 EDT 2018}
}
https://doi.org/10.1016/j.physletb.2018.02.008
Web of Science
Figures / Tables:
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