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The three-loop polarized pure singlet operator matrix element with two different masses

Ablinger, J.; Blümlein, J.; De Freitas, A.; Saragnese, M.; Schneider, C.; Schönwald, K.

Abstract:
We present the two-mass QCD contributions to the polarized pure singlet operator matrix element at three loop order in x-space. These terms are relevant for calculating the polarized structure function at as well as for the matching relations in the variable flavor number scheme and the polarized heavy quark distribution functions at the same order. The result for the operator matrix element is given in terms of generalized iterated integrals. These integrals depend on the mass ratio through the main argument, and the alphabet includes square–root valued letters.

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Verlagsausgabe §
DOI: 10.5445/IR/1000118002
Veröffentlicht am 06.04.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Theoretische Teilchenphysik (TTP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 03.2020
Sprache Englisch
Identifikator ISSN: 0550-3213
KITopen-ID: 1000118002
Erschienen in Nuclear physics <Amsterdam> / B
Band 952
Seiten Article: 114916
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Nachgewiesen in Scopus
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