One-loop corrections to light cone wave functions : The dipole picture DIS cross section
Hänninen, H., Lappi, T., & Paatelainen, R. (2018). One-loop corrections to light cone wave functions : The dipole picture DIS cross section. Annals of Physics, 393, 358-412. https://doi.org/10.1016/j.aop.2018.04.015
Julkaistu sarjassa
Annals of PhysicsPäivämäärä
2018Tekijänoikeudet
© 2018 Elsevier Inc. All rights reserved.
We develop methods to perform loop calculations in light cone perturbation theory using a helicity basis, refining the method introduced in our earlier work. In particular this includes implementing a consistent way to contract the four-dimensional tensor structures from the helicity vectors with d-dimensional tensors arising from loop integrals, in a way that can be fully automatized. We demonstrate this explicitly by calculating the one-loop correction to the virtual photon to quark–antiquark dipole light cone wave function. This allows us to calculate the deep inelastic scattering cross section in the dipole formalism to next-to-leading order accuracy. Our results, obtained using the four dimensional helicity scheme, agree with the recent calculation by Beuf using conventional dimensional regularization, confirming the regularization scheme independence of this cross section.
Julkaisija
Elsevier Inc.ISSN Hae Julkaisufoorumista
0003-4916Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/28018507
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Rahoittaja(t)
Euroopan komissio; Suomen AkatemiaRahoitusohjelmat(t)
ERC European Research Council, H2020; Akatemiatutkijan tutkimuskulut, SA
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Lisätietoja rahoituksesta
We thank G. Beuf for numerous discussions and providing his results in [ 30 ] to us already prior to publication. This work has been supported by the Academy of Finland , projects 273464 and 303756 , and by the European Research Council , grants ERC-2015-CoG-681707 and ERC-2016-CoG-725369 .Lisenssi
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