2019
DOI: 10.1007/jhep08(2019)112
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Two-loop massive quark jet functions in SCET

Abstract: We calculate the O(α 2 s ) corrections to the primary massive quark jet functions in Soft-Collinear Effective Theory (SCET). They are an important ingredient in factorized predictions for inclusive jet mass cross sections initiated by massive quarks emerging from a hard interaction with smooth quark mass dependence. Due to the effects coming from the secondary production of massive quark-antiquark pairs there are two options to define the SCET jet function, which we call universal and mass mode jet functions. … Show more

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Cited by 19 publications
(17 citation statements)
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References 52 publications
(204 reference statements)
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“…For example, the factorization formula for the massive event shape distribution involves such a jet function, as the jet and heavy quark masses are of similar magnitude [52][53][54][55]. The corresponding jet function has been calculated to two-loop order [56]. Furthermore, the semi-inclusive massive quark jet fragmentation function has been calculated at NLO and applied to inclusive jet production [57,58].…”
Section: Massive Quark Jet Functionmentioning
confidence: 99%
“…For example, the factorization formula for the massive event shape distribution involves such a jet function, as the jet and heavy quark masses are of similar magnitude [52][53][54][55]. The corresponding jet function has been calculated to two-loop order [56]. Furthermore, the semi-inclusive massive quark jet fragmentation function has been calculated at NLO and applied to inclusive jet production [57,58].…”
Section: Massive Quark Jet Functionmentioning
confidence: 99%
“…This is achieved by matching SCET onto boosted heavy-quark effective theory (bHQET). For jettiness all the ingredients necessary to build an N 3 LL-accurate cross section are known: bHQET jet function [40], SCET massive jet function [41], and bHQET matching coefficient [42], as well as the secondary production contributions [43,44] (all up to two-loop level). The computations carried out in this article make possible N 2 LL resummation both in SCET and bHQET for other classes of event shapes.…”
Section: Jhep09(2020)132mentioning
confidence: 99%
“…[81,82]. The massive SCET jet function at O(α 2 s ) is definitely much more involved, and so far results only exist for 2-jettiness [41], which is certainly simpler since it can be computed as the imaginary part of a forward-scattering matrix element, such that the usual machinery for multi-loop computations can be applied.…”
Section: Jhep09(2020)132mentioning
confidence: 99%
“…An example of a massive quark (initiated) jet function is given in refs. [37,38], and an example of an infrared-unsafe jet observable is the electric charge of the jet [39,40].…”
Section: Jhep10(2020)118mentioning
confidence: 99%