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Aghasyan, M. ; Avakian, H. ; De Sanctis, E. ; Gamberg, L. ; Mirazita, M. ; Musch, B. ; Prokudin, A. ; Rossi, P.

Studies of Transverse Momentum Dependent Parton Distributions and Bessel Weighting

Aghasyan, M., Avakian, H., De Sanctis, E., Gamberg, L., Mirazita, M., Musch, B., Prokudin, A. und Rossi, P. (2015) Studies of Transverse Momentum Dependent Parton Distributions and Bessel Weighting. Journal of High Energy Physics 2015, art39.

Veröffentlichungsdatum dieses Volltextes: 05 Aug 2015 12:56
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.32309

Dies ist die aktuelle Version dieses Eintrags.


Zusammenfassung

In this paper we present a new technique for analysis of transverse momentum dependent parton distribution functions, based on the Bessel weighting formalism. The procedure is applied to studies of the double longitudinal spin asymmetry in semi-inclusive deep inelastic scattering using a new dedicated Monte Carlo generator which includes quark intrinsic transverse momentum within the generalized ...

In this paper we present a new technique for analysis of transverse momentum dependent parton distribution functions, based on the Bessel weighting formalism. The procedure is applied to studies of the double longitudinal spin asymmetry in semi-inclusive deep inelastic scattering using a new dedicated Monte Carlo generator which includes quark intrinsic transverse momentum within the generalized parton model. Using a fully differential cross section for the process, the effect of four momentum conservation is analyzed using various input models for transverse momentum distributions and fragmentation functions. We observe a few percent systematic offset of the Bessel-weighted asymmetry obtained from Monte Carlo extraction compared to input model calculations, which is due to the limitations imposed by the energy and momentum conservation at the given energy/ Q 2 . We find that the Bessel weighting technique provides a powerful and reliable tool to study the Fourier transform of TMDs with controlled systematics due to experimental acceptances and resolutions with different TMD model inputs.



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    Details

    DokumentenartArtikel
    Titel eines Journals oder einer ZeitschriftJournal of High Energy Physics
    Verlag:Springer
    Band:2015
    Seitenbereich:art39
    Datum9 März 2015
    Zusätzliche Informationen (Öffentlich)Projekt SCOAP3
    InstitutionenNicht ausgewählt
    Identifikationsnummer
    WertTyp
    10.1007/JHEP03(2015)039DOI
    Stichwörter / KeywordsDeep Inelastic Scattering; Parton Model; QCD
    Dewey-Dezimal-Klassifikation500 Naturwissenschaften und Mathematik > 530 Physik
    StatusVeröffentlicht
    BegutachtetJa, diese Version wurde begutachtet
    An der Universität Regensburg entstandenJa
    URN der UB Regensburgurn:nbn:de:bvb:355-epub-323092
    Dokumenten-ID32309

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