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High Energy Physics - Phenomenology

arXiv:hep-ph/9806472 (hep-ph)
[Submitted on 24 Jun 1998 (v1), last revised 26 Aug 1998 (this version, v2)]

Title:The Phase Structure of an SU(N) Gauge Theory with N_f Flavors

Authors:Thomas Appelquist, Anuradha Ratnaweera, John Terning, L. C. R. Wijewardhana
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Abstract: We investigate the chiral phase transition in SU(N) gauge theories as the number of quark flavors, $N_f$, is varied. We argue that the transition takes place at a large enough value of $N_f$ so that it is governed by the infrared fixed point of the $\beta$ function. We study the nature of the phase transition analytically and numerically, and discuss the spectrum of the theory as the critical value of $N_f$ is approached in both the symmetric and broken phases. Since the transition is governed by a conformal fixed point, there are no light excitations on the symmetric side. We extend previous work to include higher order effects by developing a renormalization group estimate of the critical coupling.
Comments: 34 pages, 1 figure. More references added
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Theory (hep-th)
Report number: YCTP-P15-98, UCB-PTH-98/34, LBNL-41946,UCTP-110-98
Cite as: arXiv:hep-ph/9806472
  (or arXiv:hep-ph/9806472v2 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/9806472
Journal reference: Phys.Rev.D58:105017,1998
Related DOI: https://doi.org/10.1103/PhysRevD.58.105017

Submission history

From: L. C. R. Wijewardhana [view email]
[v1] Wed, 24 Jun 1998 18:51:38 UTC (24 KB)
[v2] Wed, 26 Aug 1998 22:11:04 UTC (24 KB)
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