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Autor Scimemi, Ignazio |
Documentos disponibles escritos por este autor (23)
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D'Alesio, Umberto ; Echevarria, Miguel G. ; Melis, Stefano ; Scimemi, Ignazio | EDP Sciences: EPJ Open Access | 2015The factorization theorem for qT spectra in Drell-Yan processes, boson production and semi-inclusive deep inelastic scattering allows for the determination of the non-perturbative parts of transverse momentum dependent parton distribution functi[...]![]()
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Gutierrez Reyes, Daniel ; Scimemi, Ignazio ; Waalewijn, Wouter J. ; Zoppi, Lorenzo | Springer | 2019-10-04The extraction of transverse momentum dependent distributions (TMDs) in semi-inclusive deep inelastic scattering (SIDIS) is complicated by the presence of both initial- and final-state nonperturbative physics. We recently proposed measuring jets[...]![]()
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Gutierrez Reyes, Daniel ; Scimemi, Ignazio ; Waalewijn, Wouter J. ; Zoppi, Lorenzo | Amer Physical Soc | 2018-10-03We investigate the use of jets to measure transverse- momentum-dependent distributions (TMDs). The example we use to present our framework is the dijet momentum decorrelation at lepton colliders. Translating this momentum decorrelation into an a[...]![]()
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Echevarria, Miguel G. ; Scimemi, Ignazio ; Vladimirov, Aleksey | American Physical Society | 2016-01-21We calculate the unpolarized transverse momentum dependent fragmentation function at next-to-next-to-leading order, evaluating separately the transverse momentum dependent (TMD) soft factor and the TMD collinear correlator. For the first time, t[...]![]()
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Gutierrez Reyes, Daniel ; Scimemi, Ignazio ; Vladimirov, Alexey A. | Elsevier Science BV | 2017-06-10We systematically study the large-qT (or small-b) matching of transverse momentum dependent (TMD) distributions to the twist-2 integrated parton distributions. Performing operator product expansion for a generic TMD operator at the next-to-leadi[...]![]()
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By considering semi-inclusive deep-inelastic scattering and the (complementary) qT-spectrum for Drell-Yan lepton pair production we derive the QCD evolution for all the leading-twist transverse momentum dependent distribution and fragmentation f[...]![]()
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Echevarria, Miguel G. ; Scimemi, Ignazio ; Vladimirov, Aleksey | American Physical Society | 2016-03-02All (un)polarized transverse momentum dependent functions (TMDs), both distribution and fragmentation functions, are defined with the same universal soft function, which cancels spurious rapidity divergences within an individual TMD and renders [...]![]()
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The transverse momentum dependent parton distribution/fragmentation functions (TMDs) are essential in the factorization of a number of processes like Drell-Yan scattering, vector boson production, semi-inclusive deep inelastic scattering, etc. W[...]