Confining vs. conformal scenario for SU(2) with 2 adjoint fermions. Gluonic observables.

Luigi Del Debbio, Biagio Lucini, Agostino Patella, Claudio Pica, Antonio Rago

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Abstract

Walking technicolor is a mechanism for electroweak symmetry breaking without Higgs field. The Higgs mechanism is provided by chiral symmetry breaking in the technicolor theory. An essential ingredient is the vicinity to an IR fixed point, which could reconcile technicolor with the electroweak precision tests. SU(2) gauge theory with two Dirac adjoint fermions has been proposed as a candidate for walking technicolor. Understanding whether this theory is confining or IR-conformal is a challenging problem, which can be addressed by means of numerical simulations. We have pointed out that a clean signal for the existence of an IR fixed point in this theory can be obtained by comparing the mesonic and gluonic sectors. We review some technical details of our calculations. Possible systematic errors are discussed.
Original languageEnglish
JournalPoSLAT
Volume2010
Publication statusPublished - 3. Nov 2010

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walking
confining
broken symmetry
fermions
ingredients
systematic errors
gauge theory
sectors
simulation

Keywords

  • hep-lat

Cite this

Del Debbio, Luigi ; Lucini, Biagio ; Patella, Agostino ; Pica, Claudio ; Rago, Antonio. / Confining vs. conformal scenario for SU(2) with 2 adjoint fermions. Gluonic observables. In: PoSLAT. 2010 ; Vol. 2010.
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title = "Confining vs. conformal scenario for SU(2) with 2 adjoint fermions. Gluonic observables.",
abstract = "Walking technicolor is a mechanism for electroweak symmetry breaking without Higgs field. The Higgs mechanism is provided by chiral symmetry breaking in the technicolor theory. An essential ingredient is the vicinity to an IR fixed point, which could reconcile technicolor with the electroweak precision tests. SU(2) gauge theory with two Dirac adjoint fermions has been proposed as a candidate for walking technicolor. Understanding whether this theory is confining or IR-conformal is a challenging problem, which can be addressed by means of numerical simulations. We have pointed out that a clean signal for the existence of an IR fixed point in this theory can be obtained by comparing the mesonic and gluonic sectors. We review some technical details of our calculations. Possible systematic errors are discussed.",
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Del Debbio, L, Lucini, B, Patella, A, Pica, C & Rago, A 2010, 'Confining vs. conformal scenario for SU(2) with 2 adjoint fermions. Gluonic observables.', PoSLAT, vol. 2010.

Confining vs. conformal scenario for SU(2) with 2 adjoint fermions. Gluonic observables. / Del Debbio, Luigi; Lucini, Biagio; Patella, Agostino; Pica, Claudio; Rago, Antonio.

In: PoSLAT, Vol. 2010, 03.11.2010.

Research output: Contribution to journalConference articleResearchpeer-review

TY - GEN

T1 - Confining vs. conformal scenario for SU(2) with 2 adjoint fermions. Gluonic observables.

AU - Del Debbio, Luigi

AU - Lucini, Biagio

AU - Patella, Agostino

AU - Pica, Claudio

AU - Rago, Antonio

PY - 2010/11/3

Y1 - 2010/11/3

N2 - Walking technicolor is a mechanism for electroweak symmetry breaking without Higgs field. The Higgs mechanism is provided by chiral symmetry breaking in the technicolor theory. An essential ingredient is the vicinity to an IR fixed point, which could reconcile technicolor with the electroweak precision tests. SU(2) gauge theory with two Dirac adjoint fermions has been proposed as a candidate for walking technicolor. Understanding whether this theory is confining or IR-conformal is a challenging problem, which can be addressed by means of numerical simulations. We have pointed out that a clean signal for the existence of an IR fixed point in this theory can be obtained by comparing the mesonic and gluonic sectors. We review some technical details of our calculations. Possible systematic errors are discussed.

AB - Walking technicolor is a mechanism for electroweak symmetry breaking without Higgs field. The Higgs mechanism is provided by chiral symmetry breaking in the technicolor theory. An essential ingredient is the vicinity to an IR fixed point, which could reconcile technicolor with the electroweak precision tests. SU(2) gauge theory with two Dirac adjoint fermions has been proposed as a candidate for walking technicolor. Understanding whether this theory is confining or IR-conformal is a challenging problem, which can be addressed by means of numerical simulations. We have pointed out that a clean signal for the existence of an IR fixed point in this theory can be obtained by comparing the mesonic and gluonic sectors. We review some technical details of our calculations. Possible systematic errors are discussed.

KW - hep-lat

M3 - Conference article

VL - 2010

JO - PoSLAT

JF - PoSLAT

ER -