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A note on C-parity conservation and the validity of orientifold planar equivalence

Mikhail Shifman, Gabriele Veneziano, Adi Armoni Orcid Logo

Physics Letters B, Volume: "B647", Issue: 5-6, Pages: 515 - 518

Swansea University Author: Adi Armoni Orcid Logo

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DOI (Published version): 10.1016/j.physletb.2007.02.049

Abstract

We analyze the possibility of a spontaneous breaking of C-invariance in gauge theories with fermions in vector-like - but otherwise generic - representations of the gauge group. QCD, supersymmetric Yang-Mills theory, and orientifold field theories, all belong to this class. We argue that charge conj...

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Published in: Physics Letters B
ISSN: 03702693
Published: 2007
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa28651
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first_indexed 2016-06-04T12:47:02Z
last_indexed 2018-02-09T05:12:58Z
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spelling 2016-06-04T06:08:17.0888207 v2 28651 2016-06-04 A note on C-parity conservation and the validity of orientifold planar equivalence 3f75faad0563a2d3b191191a2efee956 0000-0002-8105-0645 Adi Armoni Adi Armoni true false 2016-06-04 SPH We analyze the possibility of a spontaneous breaking of C-invariance in gauge theories with fermions in vector-like - but otherwise generic - representations of the gauge group. QCD, supersymmetric Yang-Mills theory, and orientifold field theories, all belong to this class. We argue that charge conjugation is not spontaneously broken as long as Lorentz invariance is maintained. Uniqueness of the vacuum state in pure Yang-Mills theory (without fermions) and convergence of the expansion in fermion loops are key ingredients. The fact that C-invariance is conserved has an interesting application to our proof of planar equivalence between supersymmetric Yang-Mills theory and orientifold field theory on R4, since it allows the use of charge conjugation to connect the large-N limit of Wilson loops in different Journal Article Physics Letters B "B647" 5-6 515 518 03702693 31 1 2007 2007-01-31 10.1016/j.physletb.2007.02.049 http://inspirehep.net/record/743076 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2016-06-04T06:08:17.0888207 2016-06-04T06:08:16.8704193 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Mikhail Shifman 1 Gabriele Veneziano 2 Adi Armoni 0000-0002-8105-0645 3
title A note on C-parity conservation and the validity of orientifold planar equivalence
spellingShingle A note on C-parity conservation and the validity of orientifold planar equivalence
Adi Armoni
title_short A note on C-parity conservation and the validity of orientifold planar equivalence
title_full A note on C-parity conservation and the validity of orientifold planar equivalence
title_fullStr A note on C-parity conservation and the validity of orientifold planar equivalence
title_full_unstemmed A note on C-parity conservation and the validity of orientifold planar equivalence
title_sort A note on C-parity conservation and the validity of orientifold planar equivalence
author_id_str_mv 3f75faad0563a2d3b191191a2efee956
author_id_fullname_str_mv 3f75faad0563a2d3b191191a2efee956_***_Adi Armoni
author Adi Armoni
author2 Mikhail Shifman
Gabriele Veneziano
Adi Armoni
format Journal article
container_title Physics Letters B
container_volume "B647"
container_issue 5-6
container_start_page 515
publishDate 2007
institution Swansea University
issn 03702693
doi_str_mv 10.1016/j.physletb.2007.02.049
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
url http://inspirehep.net/record/743076
document_store_str 0
active_str 0
description We analyze the possibility of a spontaneous breaking of C-invariance in gauge theories with fermions in vector-like - but otherwise generic - representations of the gauge group. QCD, supersymmetric Yang-Mills theory, and orientifold field theories, all belong to this class. We argue that charge conjugation is not spontaneously broken as long as Lorentz invariance is maintained. Uniqueness of the vacuum state in pure Yang-Mills theory (without fermions) and convergence of the expansion in fermion loops are key ingredients. The fact that C-invariance is conserved has an interesting application to our proof of planar equivalence between supersymmetric Yang-Mills theory and orientifold field theory on R4, since it allows the use of charge conjugation to connect the large-N limit of Wilson loops in different
published_date 2007-01-31T03:34:54Z
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score 11.017731

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