Toward TeV Conformality

被引：61

作者：

Appelquist, T. ^{[1
]}

Avakian, A. ^{[2
]}

Babich, R. ^{[2
]}

Brower, R. C. ^{[2
]}

Cheng, M. ^{[3
]}

Clark, M. A. ^{[4
,5
]}

Cohen, S. D. ^{[2
]}

Fleming, G. T. ^{[1
]}

Kiskis, J. ^{[6
]}

Neil, E. T. ^{[1
]}

Osborn, J. C. ^{[7
]}

Rebbi, C. ^{[2
]}

Schaich, D. ^{[2
]}

Vranas, P. ^{[3
]}

机构：

[1] Yale Univ, Dept Phys, Sloane Lab, New Haven, CT 06520 USA

[2] Boston Univ, Dept Phys, Boston, MA 02215 USA

[3] Lawrence Livermore Natl Lab, Phys Sci Directorate, Livermore, CA 94550 USA

[4] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[5] Harvard Univ, Initiat Innovat Comp, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[6] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[7] Argonne Leadership Comp Facil, Argonne, IL 60439 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 07期

基金：

美国国家科学基金会;

关键词：

GAUGE-THEORIES; SCALE; HYPERCOLOR;

D O I：

10.1103/PhysRevLett.104.071601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the chiral properties of an SU(3) gauge theory with N(f) massless Dirac fermions in the fundamental representation when N(f) is increased from 2 to 6. For N(f) = 2, our lattice simulations lead to a value of <(psi) over bar psi >/F(3), where F is the Nambu-Goldstone-boson decay constant and <(psi) over bar psi > is the chiral condensate, which agrees with the measured QCD value. For N(f) = 6, this ratio shows significant enhancement, presaging an even larger enhancement anticipated as N(f) increases further, toward the critical value for transition from confinement to infrared conformality.

引用

页数：4

共 20 条

[1] Physical results from 2+1 flavor domain wall QCD and SU(2) chiral perturbation theory [J].

Allton, C. ;

Antonio, D. J. ;

Aoki, Y. ;

Blum, T. ;

Boyle, P. A. ;

Christ, N. H. ;

Clark, M. A. ;

Cohen, S. D. ;

Dawson, C. ;

Donnellan, M. A. ;

Flynn, J. M. ;

Hart, A. ;

Izubuchi, T. ;

Jung, C. ;

Juttner, A. ;

Kennedy, A. D. ;

Kenway, R. D. ;

Li, M. ;

Li, S. ;

Lin, M. F. ;

Mawhinney, R. D. ;

Maynard, C. M. ;

Ohta, S. ;

Pendleton, B. J. ;

Sachrajda, C. T. ;

Sasaki, S. ;

Scholz, E. E. ;

Soni, A. ;

Tweedie, R. J. ;

Wennekers, J. ;

Yamazaki, T. ;

Zanotti, J. M. .

PHYSICAL REVIEW D, 2008, 78 (11)

[2] I=2 pion scattering phase shift with Wilson fermions -: art. no. 014502 [J].

Aoki, S ;

Fukugita, M ;

Hashimoto, S ;

Ishikawa, KI ;

Ishizuka, N ;

Iwasaki, Y ;

Kanaya, K ;

Kaneko, T ;

Kuramashi, Y ;

Lesk, V ;

Okawa, M ;

Taniguchi, Y ;

Ukawa, A ;

Yoshié, T .

PHYSICAL REVIEW D, 2003, 67 (01)

[3] CHIRAL HIERARCHIES AND FLAVOR-CHANGING NEUTRAL CURRENTS IN HYPERCOLOR [J].

APPELQUIST, T ;

KARABALI, D ;

WIJEWARDHANA, LCR .

PHYSICAL REVIEW LETTERS, 1986, 57 (08) :957-960

[4] Lattice study of the conformal window in QCD-like theories [J].

Appelquist, Thomas ;

Fleming, George T. ;

Neil, Ethan T. .

PHYSICAL REVIEW LETTERS, 2008, 100 (17)

[5] Lattice study of conformal behavior in SU(3) Yang-Mills theories [J].

Appelquist, Thomas ;

Fleming, George T. ;

Neil, Ethan T. .

PHYSICAL REVIEW D, 2009, 79 (07)

[6] ASYMPTOTIC-BEHAVIOR OF NON-ABELIAN GAUGE THEORIES TO 2-LOOP ORDER [J].

CASWELL, WE .

PHYSICAL REVIEW LETTERS, 1974, 33 (04) :244-246

[7]

DEUZEMAN A, ARXIV09044662

[8] The physics of eight flavours [J].

Deuzeman, Albert ;

Lombardo, Maria Paola ;

Pallante, Elisabetta .

PHYSICS LETTERS B, 2008, 670 (01) :41-48

[9] Nearly conformal gauge theories in finite volume [J].

Fodor, Zoltan ;

Holland, Kieran ;

Kuti, Julius ;

Nogradi, Daniel ;

Schroeder, Chris .

PHYSICS LETTERS B, 2009, 681 (04) :353-361

[10] LIGHT QUARKS AT LOW-TEMPERATURES [J].

GASSER, J ;

LEUTWYLER, H .

PHYSICS LETTERS B, 1987, 184 (01) :83-88

← 1 2 →