QED-Corrections to Weak Decays

Important aspects of QED-corrections to hadronic decays are reviewed with emphasis on conceptual points such as infrared divergences and structure dependence. These matter are illustrated for the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline...

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Autor principal:	Roman Zwicky
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	QED-corrections weak decays Mathematics QA1-939
Acceso en línea:	https://doaj.org/article/d6f87654c15d40ac8bd7128ac4c6fe93
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spelling	oai:doaj.org-article:d6f87654c15d40ac8bd7128ac4c6fe932021-11-25T19:06:13ZQED-Corrections to Weak Decays10.3390/sym131120362073-8994https://doaj.org/article/d6f87654c15d40ac8bd7128ac4c6fe932021-10-01T00:00:00Zhttps://www.mdpi.com/2073-8994/13/11/2036https://doaj.org/toc/2073-8994Important aspects of QED-corrections to hadronic decays are reviewed with emphasis on conceptual points such as infrared divergences and structure dependence. These matter are illustrated for the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>e</mi><mo>+</mo></msup><msup><mi>e</mi><mo>−</mo></msup><mo>→</mo><mi>h</mi><mi>a</mi><mi>d</mi><mi>r</mi><mi>o</mi><mi>n</mi><mi>s</mi></mrow></semantics></math></inline-formula>, the leptonic decay <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>π</mi><mo>+</mo></msup><mo>→</mo><msup><mo>ℓ</mo><mo>+</mo></msup><mover accent="true"><mi>ν</mi><mo>¯</mo></mover></mrow></semantics></math></inline-formula> and the semileptonic decay <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>B</mi><mo>→</mo><mi>π</mi><msup><mo>ℓ</mo><mo>+</mo></msup><mover accent="true"><mi>ν</mi><mo>¯</mo></mover></mrow></semantics></math></inline-formula>. Aspects of structure dependence include the (non)-cancellation of hard-collinear logs (e.g., <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo form="prefix">ln</mo><msub><mi>m</mi><mo>ℓ</mo></msub></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo form="prefix">ln</mo><msub><mi>m</mi><mi>π</mi></msub></mrow></semantics></math></inline-formula>) of charged final states.Roman ZwickyMDPI AGarticleQED-correctionsweak decaysMathematicsQA1-939ENSymmetry, Vol 13, Iss 2036, p 2036 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	QED-corrections weak decays Mathematics QA1-939
spellingShingle	QED-corrections weak decays Mathematics QA1-939 Roman Zwicky QED-Corrections to Weak Decays
description	Important aspects of QED-corrections to hadronic decays are reviewed with emphasis on conceptual points such as infrared divergences and structure dependence. These matter are illustrated for the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>e</mi><mo>+</mo></msup><msup><mi>e</mi><mo>−</mo></msup><mo>→</mo><mi>h</mi><mi>a</mi><mi>d</mi><mi>r</mi><mi>o</mi><mi>n</mi><mi>s</mi></mrow></semantics></math></inline-formula>, the leptonic decay <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>π</mi><mo>+</mo></msup><mo>→</mo><msup><mo>ℓ</mo><mo>+</mo></msup><mover accent="true"><mi>ν</mi><mo>¯</mo></mover></mrow></semantics></math></inline-formula> and the semileptonic decay <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>B</mi><mo>→</mo><mi>π</mi><msup><mo>ℓ</mo><mo>+</mo></msup><mover accent="true"><mi>ν</mi><mo>¯</mo></mover></mrow></semantics></math></inline-formula>. Aspects of structure dependence include the (non)-cancellation of hard-collinear logs (e.g., <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo form="prefix">ln</mo><msub><mi>m</mi><mo>ℓ</mo></msub></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo form="prefix">ln</mo><msub><mi>m</mi><mi>π</mi></msub></mrow></semantics></math></inline-formula>) of charged final states.
format	article
author	Roman Zwicky
author_facet	Roman Zwicky
author_sort	Roman Zwicky
title	QED-Corrections to Weak Decays
title_short	QED-Corrections to Weak Decays
title_full	QED-Corrections to Weak Decays
title_fullStr	QED-Corrections to Weak Decays
title_full_unstemmed	QED-Corrections to Weak Decays
title_sort	qed-corrections to weak decays
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d6f87654c15d40ac8bd7128ac4c6fe93
work_keys_str_mv	AT romanzwicky qedcorrectionstoweakdecays
_version_	1718410307766845440

QED-Corrections to Weak Decays

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