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Nonplanar Anomalies in Noncommutative Theories and the Green-Schwarz Mechanism

Stefan Theisen, Esperanza Lopez, Adi Armoni Orcid Logo

Journal of High Energy Physics, Volume: "06", Issue: 06, Pages: 050 - 050

Swansea University Author: Adi Armoni Orcid Logo

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DOI (Published version): 10.1088/1126-6708/2002/06/050

Abstract

We discuss nonplanar anomalies in noncommutative gauge theories. In particular we show that a nonplanar anomaly exists when the external noncommutative momentum is zero and that it leads to a non-conservation of the associated axial charge. In the case of nonplanar local anomalies, a cancellation of...

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Published in: Journal of High Energy Physics
ISSN: 1029-8479
Published: 2002
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URI: https://cronfa.swan.ac.uk/Record/cronfa28676
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first_indexed 2016-06-04T12:47:07Z
last_indexed 2018-02-09T05:13:02Z
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spelling 2016-06-04T06:08:33.5937265 v2 28676 2016-06-04 Nonplanar Anomalies in Noncommutative Theories and the Green-Schwarz Mechanism 3f75faad0563a2d3b191191a2efee956 0000-0002-8105-0645 Adi Armoni Adi Armoni true false 2016-06-04 SPH We discuss nonplanar anomalies in noncommutative gauge theories. In particular we show that a nonplanar anomaly exists when the external noncommutative momentum is zero and that it leads to a non-conservation of the associated axial charge. In the case of nonplanar local anomalies, a cancellation of the anomaly can be achieved by a Green-Schwarz mechanism. In an example of D3 branes placed on orbifold singularity that leads to a chiral theory, the mechanism involves twisted RR fields which propagate with zero noncommutative momentum. Global anomalies are not cancelled and, in particular, the decay pi0 --&gt; 2 gamma is Journal Article Journal of High Energy Physics "06" 06 050 050 1029-8479 31 3 2002 2002-03-31 10.1088/1126-6708/2002/06/050 http://inspirehep.net/record/584280 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2016-06-04T06:08:33.5937265 2016-06-04T06:08:33.2193241 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Stefan Theisen 1 Esperanza Lopez 2 Adi Armoni 0000-0002-8105-0645 3
title Nonplanar Anomalies in Noncommutative Theories and the Green-Schwarz Mechanism
spellingShingle Nonplanar Anomalies in Noncommutative Theories and the Green-Schwarz Mechanism
Adi Armoni
title_short Nonplanar Anomalies in Noncommutative Theories and the Green-Schwarz Mechanism
title_full Nonplanar Anomalies in Noncommutative Theories and the Green-Schwarz Mechanism
title_fullStr Nonplanar Anomalies in Noncommutative Theories and the Green-Schwarz Mechanism
title_full_unstemmed Nonplanar Anomalies in Noncommutative Theories and the Green-Schwarz Mechanism
title_sort Nonplanar Anomalies in Noncommutative Theories and the Green-Schwarz Mechanism
author_id_str_mv 3f75faad0563a2d3b191191a2efee956
author_id_fullname_str_mv 3f75faad0563a2d3b191191a2efee956_***_Adi Armoni
author Adi Armoni
author2 Stefan Theisen
Esperanza Lopez
Adi Armoni
format Journal article
container_title Journal of High Energy Physics
container_volume "06"
container_issue 06
container_start_page 050
publishDate 2002
institution Swansea University
issn 1029-8479
doi_str_mv 10.1088/1126-6708/2002/06/050
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/584280
document_store_str 0
active_str 0
description We discuss nonplanar anomalies in noncommutative gauge theories. In particular we show that a nonplanar anomaly exists when the external noncommutative momentum is zero and that it leads to a non-conservation of the associated axial charge. In the case of nonplanar local anomalies, a cancellation of the anomaly can be achieved by a Green-Schwarz mechanism. In an example of D3 branes placed on orbifold singularity that leads to a chiral theory, the mechanism involves twisted RR fields which propagate with zero noncommutative momentum. Global anomalies are not cancelled and, in particular, the decay pi0 --&gt; 2 gamma is
published_date 2002-03-31T03:34:56Z
_version_ 1763751490104590336
score 11.036706

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