Angularity in DIS at next-to-next-to-leading log accuracy

Abstract Angularity is a class of event-shape observables that can be measured in deep-inelastic scattering. With its continuous parameter a one can interpolate angularity between thrust and broadening and further access beyond the region. Providing such systematic way to access various observables...

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Autores principales:	Jiawei Zhu, Daekyoung Kang, Tanmay Maji
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Deep Inelastic Scattering (Phenomenology) QCD Phenomenology Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/3e2d67a02829448e907379aae5a45124
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id	oai:doaj.org-article:3e2d67a02829448e907379aae5a45124
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spelling	oai:doaj.org-article:3e2d67a02829448e907379aae5a451242021-11-14T12:41:12ZAngularity in DIS at next-to-next-to-leading log accuracy10.1007/JHEP11(2021)0261029-8479https://doaj.org/article/3e2d67a02829448e907379aae5a451242021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)026https://doaj.org/toc/1029-8479Abstract Angularity is a class of event-shape observables that can be measured in deep-inelastic scattering. With its continuous parameter a one can interpolate angularity between thrust and broadening and further access beyond the region. Providing such systematic way to access various observables makes angularity attractive in analysis with event shapes. We give the definition of angularity for DIS and factorize the cross section by using soft-collinear effective theory. The factorization is valid in a wide range of a below and above thrust region but invalid in broadening limit. It contains an angularity beam function, which is new result and we give the expression at O $$ \mathcal{O} $$ (α s ). We also perform large log resummation of angularity and make predictions at various values of a at next-to-next-to-leading log accuracy.Jiawei ZhuDaekyoung KangTanmay MajiSpringerOpenarticleDeep Inelastic Scattering (Phenomenology)QCD PhenomenologyNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-38 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Deep Inelastic Scattering (Phenomenology) QCD Phenomenology Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Deep Inelastic Scattering (Phenomenology) QCD Phenomenology Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Jiawei Zhu Daekyoung Kang Tanmay Maji Angularity in DIS at next-to-next-to-leading log accuracy
description	Abstract Angularity is a class of event-shape observables that can be measured in deep-inelastic scattering. With its continuous parameter a one can interpolate angularity between thrust and broadening and further access beyond the region. Providing such systematic way to access various observables makes angularity attractive in analysis with event shapes. We give the definition of angularity for DIS and factorize the cross section by using soft-collinear effective theory. The factorization is valid in a wide range of a below and above thrust region but invalid in broadening limit. It contains an angularity beam function, which is new result and we give the expression at O $$ \mathcal{O} $$ (α s ). We also perform large log resummation of angularity and make predictions at various values of a at next-to-next-to-leading log accuracy.
format	article
author	Jiawei Zhu Daekyoung Kang Tanmay Maji
author_facet	Jiawei Zhu Daekyoung Kang Tanmay Maji
author_sort	Jiawei Zhu
title	Angularity in DIS at next-to-next-to-leading log accuracy
title_short	Angularity in DIS at next-to-next-to-leading log accuracy
title_full	Angularity in DIS at next-to-next-to-leading log accuracy
title_fullStr	Angularity in DIS at next-to-next-to-leading log accuracy
title_full_unstemmed	Angularity in DIS at next-to-next-to-leading log accuracy
title_sort	angularity in dis at next-to-next-to-leading log accuracy
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/3e2d67a02829448e907379aae5a45124
work_keys_str_mv	AT jiaweizhu angularityindisatnexttonexttoleadinglogaccuracy AT daekyoungkang angularityindisatnexttonexttoleadinglogaccuracy AT tanmaymaji angularityindisatnexttonexttoleadinglogaccuracy
_version_	1718429041899339776

Angularity in DIS at next-to-next-to-leading log accuracy

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