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Gauge anomalies on shell and collinear factorization.

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Title: Gauge anomalies on shell and collinear factorization.
Authors: Alviani, Edoardo1 (AUTHOR) alviani@ijclab.in2p3.fr, Falkowski, Adam1 (AUTHOR) adam.falkowski@ijclab.in2p3.fr
Source: European Physical Journal C -- Particles & Fields. May2026, Vol. 86 Issue 5, p1-10. 10p.
Subjects: Factorization, Gauge invariance, Scattering amplitude (Physics), Gravitational interactions
Abstract: We revisit gauge anomalies from the purely on-shell perspective. We argue that violation of anomaly cancellation conditions manifests as a breakdown of collinear factorization. We explicitly construct one-loop 5-point amplitudes with graviton exchange displaying singular behavior in collinear limits that cannot be reconciled with factorization theorems. In this approach, gravity serves as a universal probe of both abelian and non-abelian anomalies. [ABSTRACT FROM AUTHOR]
Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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Header DbId: egs
DbLabel: Engineering Source
An: 194633941
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Gauge anomalies on shell and collinear factorization.
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  Data: <searchLink fieldCode="AR" term="%22Alviani%2C+Edoardo%22">Alviani, Edoardo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> alviani@ijclab.in2p3.fr</i><br /><searchLink fieldCode="AR" term="%22Falkowski%2C+Adam%22">Falkowski, Adam</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> adam.falkowski@ijclab.in2p3.fr</i>
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  Data: <searchLink fieldCode="JN" term="%22European+Physical+Journal+C+--+Particles+%26+Fields%22">European Physical Journal C -- Particles & Fields</searchLink>. May2026, Vol. 86 Issue 5, p1-10. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Factorization%22">Factorization</searchLink><br /><searchLink fieldCode="DE" term="%22Gauge+invariance%22">Gauge invariance</searchLink><br /><searchLink fieldCode="DE" term="%22Scattering+amplitude+%28Physics%29%22">Scattering amplitude (Physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Gravitational+interactions%22">Gravitational interactions</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: We revisit gauge anomalies from the purely on-shell perspective. We argue that violation of anomaly cancellation conditions manifests as a breakdown of collinear factorization. We explicitly construct one-loop 5-point amplitudes with graviton exchange displaying singular behavior in collinear limits that cannot be reconciled with factorization theorems. In this approach, gravity serves as a universal probe of both abelian and non-abelian anomalies. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of European Physical Journal C -- Particles & Fields is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1140/epjc/s10052-026-15782-1
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        Type: general
      – SubjectFull: Scattering amplitude (Physics)
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      – SubjectFull: Gravitational interactions
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      – TitleFull: Gauge anomalies on shell and collinear factorization.
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              Text: May2026
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              Y: 2026
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