Large-mass regime of the dilaton-pion low-energy effective theory
- San Francisco State Univ., CA (United States); Universitat Autònoma de Barcelona (Spain)
- Tel Aviv Univ., Ramat Aviv (Israel)
Numerical data of the SU(3) gauge theory with Nf = 8 fermions in the fundamental representation suggest the existence of a large-mass regime, where the fermion mass is not small relative to the confinement scale, but nevertheless the dilaton-pion low-energy theory is applicable thanks to the parametric proximity of the conformal window. In this regime, the leading hyperscaling relations are similar to those of a mass-deformed conformal theory, so that distinguishing infrared conformality from confinement requires the study of subleading effects. Assuming that the Nf = 8 theory confines, we estimate how light the fermion mass should be to enter the small-mass regime, where the pions become much lighter than the dilatonic scalar meson.
- Research Organization:
- San Francisco State Univ., CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- FG03-92ER40711
- OSTI ID:
- 1473997
- Alternate ID(s):
- OSTI ID: 1498905
- Journal Information:
- Physical Review. D., Vol. 98, Issue 5; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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