Walking near a Conformal Fixed Point: the 2-d O(3) Model at theta near pi as a Test Case

Slowly walking technicolor models provide a mechanism for electroweak symmetry breaking whose nonperturbative lattice investigation is rather challenging. Here we demonstrate walking near a conformal fixed point considering the 2-d lattice O(3) model at vacuum angle $\theta \approx \pi$. The essenti...

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Detalles Bibliográficos
Autores principales: de Forcrand, Philippe, Pepe, Michele, Wiese, Uwe-Jens
Lenguaje:eng
Publicado: 2012
Materias:
Particle Physics - Lattice
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.86.075006
http://cds.cern.ch/record/1443212
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author de Forcrand, Philippe
Pepe, Michele
Wiese, Uwe-Jens
author_facet de Forcrand, Philippe
Pepe, Michele
Wiese, Uwe-Jens
author_sort de Forcrand, Philippe
collection CERN
description Slowly walking technicolor models provide a mechanism for electroweak symmetry breaking whose nonperturbative lattice investigation is rather challenging. Here we demonstrate walking near a conformal fixed point considering the 2-d lattice O(3) model at vacuum angle $\theta \approx \pi$. The essential features of walking technicolor models are shared by this toy model and can be accurately investigated by numerical simulations. We show results for the running coupling and the beta-function and we perform a finite size scaling analysis of the massgap close to the conformal point.
id cern-1443212
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-14432122021-09-17T02:56:18Zdoi:10.1103/PhysRevD.86.075006http://cds.cern.ch/record/1443212engde Forcrand, PhilippePepe, MicheleWiese, Uwe-JensWalking near a Conformal Fixed Point: the 2-d O(3) Model at theta near pi as a Test CaseParticle Physics - LatticeSlowly walking technicolor models provide a mechanism for electroweak symmetry breaking whose nonperturbative lattice investigation is rather challenging. Here we demonstrate walking near a conformal fixed point considering the 2-d lattice O(3) model at vacuum angle $\theta \approx \pi$. The essential features of walking technicolor models are shared by this toy model and can be accurately investigated by numerical simulations. We show results for the running coupling and the beta-function and we perform a finite size scaling analysis of the massgap close to the conformal point.Slowly walking technicolor models provide a mechanism for electroweak symmetry breaking whose nonperturbative lattice investigation is rather challenging. Here we demonstrate walking near a conformal fixed point considering the 2-d lattice O(3) model at vacuum angle $\theta \approx \pi$. The essential features of walking technicolor models are shared by this toy model and can be accurately investigated by numerical simulations. We show results for the running coupling and the beta-function and we perform a finite size scaling analysis of the massgap close to the conformal point.arXiv:1204.4913CERN-PH-TH-2012-091CERN-PH-TH-2012-091oai:cds.cern.ch:14432122012-04-24
spellingShingle Particle Physics - Lattice
de Forcrand, Philippe
Pepe, Michele
Wiese, Uwe-Jens
Walking near a Conformal Fixed Point: the 2-d O(3) Model at theta near pi as a Test Case
title Walking near a Conformal Fixed Point: the 2-d O(3) Model at theta near pi as a Test Case
title_full Walking near a Conformal Fixed Point: the 2-d O(3) Model at theta near pi as a Test Case
title_fullStr Walking near a Conformal Fixed Point: the 2-d O(3) Model at theta near pi as a Test Case
title_full_unstemmed Walking near a Conformal Fixed Point: the 2-d O(3) Model at theta near pi as a Test Case
title_short Walking near a Conformal Fixed Point: the 2-d O(3) Model at theta near pi as a Test Case
title_sort walking near a conformal fixed point: the 2-d o(3) model at theta near pi as a test case
topic Particle Physics - Lattice
url https://dx.doi.org/10.1103/PhysRevD.86.075006
http://cds.cern.ch/record/1443212
work_keys_str_mv AT deforcrandphilippe walkingnearaconformalfixedpointthe2do3modelatthetanearpiasatestcase
AT pepemichele walkingnearaconformalfixedpointthe2do3modelatthetanearpiasatestcase
AT wieseuwejens walkingnearaconformalfixedpointthe2do3modelatthetanearpiasatestcase

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